JPH0453697Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a movable shelving device having a plurality of shelving devices movable along a rail, in which the control circuit of each shelving device is the same circuit, and the control circuits are connected one after another. The purpose of this invention is to construct an electric movable shelf device consisting of any plurality of units.

2. Description of the Related Art A movable shelving apparatus is already known in which a plurality of shelving apparatuses are arranged side by side on a rail and each of the shelving apparatuses is moved by a motor provided to each of the shelving apparatuses to form a passage between the necessary shelving apparatuses.

However, when configuring an electric movable shelving device that has multiple unit shelving devices, it is necessary to set the number of units in advance, design a control circuit accordingly, and wire all the shelving devices. Therefore, the wiring becomes complicated, and the number of signal lines between the shelf devices is large, making the wiring work troublesome.

In addition, increasing or decreasing the number of shelving devices in an electric movable shelving device once configured requires a significant change in the wiring.

The present invention is an electric movable shelving device that has unit shelving devices with the same configuration, and can be used to easily configure a movable shelving device consisting of any number of units, and also makes it easy to increase or decrease the number of units. The point is to provide the following.

The present invention solves the above-mentioned problem. A plurality of shelving devices are arranged movably in a direction perpendicular to their storage surfaces, and each shelf device receives a signal from the signal input means of each shelf device. Move the shelving device,
In this electric movable shelving device in which a passage is formed on one side of the shelving device having the operated input means, each shelving device is composed of the same circuit equipped with a terminal that can mutually input and output signals between adjacent shelving devices. It has a control circuit, and the control circuit controls the control circuit between the control circuits of the adjacent shelving devices by the signal input from the input means.
A left command signal can be applied to the neighbor on the left, a right command signal can be applied to the neighbor on the right, the same start signal can be applied to both neighbors, and a start signal can be applied from both neighbors, and the input means When a signal for selecting an aisle is inputted from the controller, the shelf device having the control circuit internally generates a signal instructing movement in the opposite direction to the side forming the aisle, and another aisle is selected. Based on the left command signal or right command signal input from the control circuit of the adjacent shelf device, a left signal or right signal is generated internally to determine the direction of movement, and furthermore, this signal is applied to each shelf only during movement. It is possible to output a motor ON signal to the control circuit of the device and input the motor ON signal from another control circuit, and to control the movement of the motor to the control circuit of each shelf device by inputting a stop signal from the input means. It is possible to output a stop signal to stop the shelf and input a stop signal from another control circuit, and the left command signal output from the control circuit of the shelf device located at the left end to the neighbor on the left should be input as is from the neighbor on the left. On the other hand, the right command signal output from the control circuit of the shelf device located on the right to the right neighbor is treated as the start signal that should be input from the right neighbor, and the left command signal is input from the right neighbor. and a start signal is input from the left neighbor when it starts moving to the left, or when a right command signal is input from the left neighbor and the right neighbor starts moving to the right. The gist is that the movement is started only when a start signal that is output at the time of the start is input.

The device of the present invention is shown as an example in the drawings, 4
To explain a movable shelf device consisting of a movable shelf device, 1A, 1B, 1C, and 1D are shelf devices arranged side by side in the depth direction,
They are movable along rails 2 arranged in a direction perpendicular to their storage surfaces. Therefore, each of the shelf devices 1A, 1B, 1C, 1D,
It is provided with an appropriate number of wheels 3 that engage with a rail 2 and reversible motors 4A, 4B, 4C, and 4D that drive them.

A, B, C, and D indicate passages formed between each shelf device 1, and in this embodiment, each shelf device 1A, 1B, 1
Passages A, B, C, and D are set on the right side of C and 1D, respectively, and FIG. 3 shows a state in which the passage B is formed.

At the bottom of the shelf devices 1A, 1B, 1C, and 1D,
It has left limit switches 5A, 5B, 5C, 5D and right limit switches 6A, 6B, 6C, 6D, which are provided opposite to the floor surface, and the shelf device 1A,
1B, 1C, and 1D are focused on the left end as shown in Figures 1 and 2, the left limit switch 5
Opposed only to each of A, 5B, 5C, and 5D,
and the actuator 7A with which only they are in contact,
7B, 7C, 7D and the shelf device 1A, forming a path with a determined width between the shelf devices 1B, 1C, 1D.
When the actuators 8B and 8 are moved to the right side, the actuators 8B and 8 face only the right limit switches 6B, 6C and 6D, and only come into contact with the right limit switches 6B, 6C and 6D.
C and 8D are placed on the floor. In addition, shelf device 1
An actuator 8A facing the right limit switch 6A of A is also provided. Therefore, the limit switches 5 and 6 are connected to the shelf devices 1A and 1, respectively.
By shifting the positions in the width direction of each of B, 1C, and 1D, different limit switches are prevented from coming into contact with one actuator.

These limit switches 5, 6 are the shelf devices 1A,
1B, 1C, and 1D respectively regulate the movement distance when moving to the right or left.
Each of B, 5C, and 5D is actuator 7
While in contact with A, 7B, 7C, and 7D, all of the shelf devices are restricted from moving further to the left.

The actuators 7 and 8 can be arranged in any manner, but as illustrated in FIG.
If it is fitted inside, the position can be easily set, and it can be prevented from getting in the way when passing through the passage formed between each shelf device. The actuators 7 and 8 may be fixed, or their positions may be adjustable in the same direction as the movement direction of the shelf device.

Each shelf device 1 has control circuits 10A, 10B, 10C, and 10D each consisting of the same circuit, and controls the respective motors 4A, 4B, 4C, and 4D. All of these control circuits 10 are connected to each other with required signal cables and power cables. Reference numeral 12 denotes a cable support body arranged between each shelf device 1 in order to accommodate the cables, which is formed with a concave cross section, and a pair of cable supports are pivoted to each other at one end, and the other end is pivoted to each other. The ends are pivoted to the top plates of adjacent shelving devices, and are configured to expand and contract as the shelving devices move.

Each of the shelf devices 1A, 1B, 1C, and 1D has a passage switch 13 such as a push button for signal input.
A, 13B, 13C, 13D and reset switches 14A, 14B, 14C, 14D. In this embodiment, the switches 13, 14 are provided at the end of each shelf device on the aisle side. The location can be arbitrary.

FIG. 8 is a block diagram of the control circuit 10. Since each control circuit is the same, the control circuit 10B is shown as a representative, and the other control circuits 10A, 10C,
10D is also the same, so illustration is omitted. Note that circuits in the control circuits 10A, 10C, and 10D that are the same as each circuit in the control circuit 10B are indicated by adding A, C, or D to the same numerical symbol. Signals from the path switch 13B and others are applied to the path control circuit 15B of the control circuit 10B. The passage control circuit 15B has an output terminal 16B,
17B, 18B, 19B, output terminal 16B
is when no other passage is selected yet.
When the first signal is input from the aisle switch 13B, it outputs a movement command signal instructing other shelf devices to move, and at the same time, the output terminal 17B outputs an aisle selection signal. When passage switch 13B is pressed again and it outputs a second signal, output terminal 1
The movement command signal 6B is stopped, and the output terminal 18B outputs a normal stop signal. This switching of the outputs of the output terminals 16B and 18B is performed, for example, by inverting a flip-flop.

If the passage switch 13B is pressed while the other passage selection signal indicating that another passage has already been selected is applied to the passage control circuit 15B, the output terminal 19B outputs an abnormal stop signal. (below,
The code of each output terminal is attached to the name of the signal output from each output terminal to represent the signal output from that output terminal. For example, the movement command signal 16B is output from output terminal 1.
6B indicates the output signal. The same applies to subsequent circuits. ) The reset circuit 20B is connected to the reset switch 14.
An output terminal 21B receives a signal from B and outputs a reset signal using that signal, and a reset circuit 2.
When the other path selection signal is input to 0B,
It has an output terminal 22B that outputs an abnormal stop signal when the reset switch 14B is pressed.

The stop control circuit 23B sends a normal stop signal 1 to it.
When 8B or abnormal stop signal 19B, 22B is input, a stop signal,
A stop signal is output from the output terminal 25B.

26B is a lamp control circuit, which turns the RUN lamp 2 when the path selection signal 17B is input.
7B is turned on, and when the normal stop signal 18B is applied, the reset lamp 28B is turned on. Furthermore, if the passage switch 13B or the reset switch 14B is pressed while the other passage selection signal is applied to the passage control circuit 15B and the reset circuit 20B, the normal stop signal 18B of the passage control circuit 15B is not output. A stop signal 25B output from the stop control circuit 23B is applied to the lamp control circuit 26B. The lamp control circuit 26B to which the normal stop signal 18B is not applied but the stop signal 25B is applied causes the reset lamp 28B to start blinking with its output.

The direction selection circuit 31B is a circuit for instructing the moving direction of each shelf device 1, and as shown in FIG. 7, this circuit is connected to the direction selection circuits 31 of the left and right shelf devices. This direction selection circuit 31B has output terminals 32B, 33B, 34B, 3
It is equipped with 5B and 36B. And shelf device 1B
When the passage switch 13B is pressed and the movement command signal 16B is input to the direction selection circuit 31B, the direction selection circuit 31B sends a left command signal from its output terminal 32B to the left shelf device 1A, and from its output terminal 32B to the right shelf device 1A. 1
Since the right command signal is applied to C from the output terminal 33B, and since the passage B is formed on the right side of the shelf device 1B, the start delay circuit 37 is applied from the output terminal 34B.
Set the left signal to be input to B, and connect the shelf device 1B.
indicates that the direction of movement is to the left. Aisle switch 13 for shelf devices other than shelf device 1B
For example, when the aisle switch 13A of the shelf device 1A is operated, the right command signal 33A is input to the direction selection circuit 31B. The direction selection circuit 31B that received the right command signal inputs the right signal from its output terminal 35B to the delay circuit 37B, and also inputs the other path selection signal from its output terminal 36B.
The right command signal 33B is applied to the aisle control circuit 15B and the reset circuit 20B, and the right command signal 33B is applied to the shelf device 1C. When the aisle switch 13 of the shelf device 1C, 1D is operated, the direction selection circuit 31B receives the left command signal and outputs the left command signal 32B, left signal 34B,
Outputs other path selection signal 36B.

The start delay circuit 37B is a circuit that has a timer and creates a time interval between the starts of each of the shelving apparatuses 1 when the plurality of shelving apparatuses 1 move. ing.
The output terminal 38B is connected to the input terminals of the start delay circuits 37 of the left and right shelf devices,
When the shelf device 1B starts, a start signal indicating the start is input from the output terminal 38B to the start delay circuit 37 of the left and right shelf devices.

When the left signal 34B is applied to the start delay circuit 37B and the start signal 38A is applied from the shelf device 1A, or when the right signal 38A is applied to the start delay circuit 37B,
When the start signal 38C is applied from the shelf device 5B and the shelf device 1C, the timer thereof is activated;
After a certain period of time, in response to the left signal 34B or right signal 35B input from the direction selection circuit 31B,
Left signal from output terminal 39B or output terminal 40B
, one of the right signals is applied to the motor control circuit 42B. Note that even if the left or right command signal 32C, 33A is input to the shelf device 1B, there is no movement space in that command direction, that is, when the signal is output from the reset switch 5B or 6B in that direction. is the start delay circuit 37 regardless of the start signal 38 input from the adjacent shelf device.
B outputs a start signal. This is the shelf device 1A,
The same applies to 1C and 1D.

The motor control circuit 42B receives the input left signal 3.
Corresponding to 9B or right signal 40B, motor 4B
, a left drive signal is output from the output terminal 43B, and a right drive signal is output from the output terminal 44B. However, when the signal is output from the limit switches 5B, 6B, the drive signal 43B,
44B is not output. Drive signals 43B, 44B
is output, the motor control circuit 42B outputs a motor ON signal from its output terminal 45B and a motor signal from its output terminal 46B.
The ON signal 45B is input to the start delay circuit 37 of all control circuits 10. Motor signal 46B
is applied to the lamp control circuit 26B, and when this happens, the lamp control circuit 26B controls the running lamp 2.
Flash 7B. This operation is the same for the motor control circuits 41 of all shelf devices. When a stop signal 24 is output from any one of the stop control circuits 23 in the control circuits 10, the stop signal 24 is input to the motor control circuits 42 of all the control circuits 10, and the motors are driven. Stop all motors 4.

The start delay circuit 37B is connected to the path switch 15.
B is pressed, when the start signal 38 is input from the left and right shelf devices 1, and when a signal is input from either the left or right limit switch 5B, 6B, that is, when the stop can be confirmed and the motor is
When the ON signal 45B disappears, a path formation completion signal is applied from the output terminal 41B to the path control circuit 15B. It should be noted that the shelf apparatus in which the passage switch 13 is not pressed also outputs the passage formation completion signal 41 under the same conditions as described above, but the completion signal 41 in this case has no effect on other circuits. Start signal 3
When the number 8 is exhausted, the timer of the delay circuit 37B is reset.

Lead wires 47 and 4 for left and right limit switches 5 and 6
8 is a start delay circuit 3 of each control circuit 10;
7 and the motor control circuit 42. 49
is the motor drive circuit.

In this embodiment, the shelf device 1A is located at the left end,
Since the shelf device 1D is located at the right end, the left command signal 32A output from the control circuit 10A of the shelf device 1A to the neighbor on the left is used as the start signal 38 to be input from the neighbor on the left. Control circuit 1
The right command signal 33D output from 0D to the right neighbor,
It is assumed that the start signal 38 should be input from the right neighbor. This connection is performed simply by short-circuiting the outward input/output terminals of the shelf devices 1A, 1D located at the ends, respectively, as described above.

In this embodiment, the run lamp 27 is incorporated in the passage switch 13, and the reset lamp 28 is incorporated in the reset switch 14, so the illustration of the lamps 27 and 28 is omitted in FIG.
7 and 28 can also be provided independently. The first signal and the second signal input to the passage control circuit 15 are shared by one passage switch 13, but a dedicated switch is used for inputting the first signal and the second signal. It is also possible to provide

The path in this device is formed by changing from a state in which all of the shelf devices 1 are concentrated to the left as shown in FIGS. 1 and 2 to a path B between the shelf devices 1B and 1C as shown in FIG. Let me explain the case.

When aisle B is selected, the aisle switch 13B of the shelf device 1B is pressed and the first signal is input to the aisle control circuit 15B. The passage control circuit 15B to which the first signal has been input inputs the movement command signal 16B to the direction selection circuit 31B and the passage selection signal 17B to the lamp control circuit 26B. As a result, the run lamp 27B lights up to indicate that passage B has been selected, and the direction selection circuit 31B inputs the left command signal 32B to the left shelf device 1A and the right command signal 33B to the shelf device 1C. . When the left command signal 32B is input to the shelf device 1A, the direction selection circuit 31A of the shelf device 1A sends the left command signal 32A to the left side.
However, since the short-circuit connection is made as described above, the left command signal 32A is directly fed back as the start signal 38 from the left neighbor, and the left command signal 32B is input to the shelf device 1A, and the start signal 38 is Since the left limit switch 5A is activated and the limit signal is input to the delay circuit 37A and the motor drive circuit 42A, the left limit signal is input from the motor control circuit 42A. The drive signal 43A is not output, and the shelf device 1A does not move. Then, the start signal 38A is applied from the shelf device 1A to the start delay circuit 37B of the shelf device 1B, and in the shelf device 1A,
From the direction selection circuit 31A to its path control circuit 15A
and is inputted to the reset circuit 20A as the other path selection signal 36A. Further, the direction selection circuit 31B is
Since the left signal 34B is applied to the start delay circuit 37B, when the left start signal 38A is input to the delay circuit 37B from the shelf device 1A, the start delay circuit 37B
Then, the timer will start, and after a certain period of time, shelf device 1 will be activated.
Complete preparations to start B to the left. However, the left limit switch 5B is activated and the limit signal is transmitted to the delay circuit 37B and motor drive circuit 42.
Since it is input to B, the motor drive circuit 42B
The left drive signal 43B is not output from the shelf device 1.
B does not move. Note that when the left signal 34B is input from the direction selection circuit 31B to the delay circuit 37B, the start signal 38 thereof is sent from the delay circuit 37B to the shelf devices 1A and 1C, but the shelf device 1A does not move as described above. No, the shelf device 1C receives the right command signal 33.
Since the right direction is selected according to B and the signal is received from the right shelf device 1D, the start signal 38B does not affect the operation of the circuits of the shelf devices 1A and 1C.

The direction selection circuit 31C of the shelf device 1C, which has received the right command signal 38B from the direction selection circuit 31B of the shelf device 1B, applies the right command signal 33C to the direction selection circuit 31D of the shelf device 1D. As a result, the direction selection circuits 31C and 31D have their respective delay circuits 37
Right signals 35C, 35D are applied to C, 37D, and other path selection signals 36C, 36 are applied to path control circuits 15C, 15D and reset circuits 20C, 20D.
Apply D. The direction selection circuit 31D of the shelf device 1D outputs the right command signal 33D, but since the shelf device 1D is located at the right end, the right command signal 33D is directly used as the right start signal as shown in FIG. 38 and is input to the delay circuit 37D of the shelf device 1D.

The delay circuit 37D of the shelf device 1D to which the right start signal 38 is applied includes the selection circuit 31D as described above.
Since the right signal 35D is already applied from
These signals activate the timer, and after a certain period of time, the delay circuit 37D applies the right signal 40D to the motor control circuit 42D. As a result, the motor control circuit 42D confirms that the right limit switch 6D is not outputting, applies the right drive signal 44D to the motor drive circuit 49D, and causes the motor 4D to move the shelf device 1D to the right. drive in the direction.
Driven by the motor 4D, the shelf device 1D moves to the right. While the motor 4D is driving, the motor control circuit 4
2D outputs a motor ON signal 45D to notify other shelving devices that the shelving device 1D is moving.
In addition, the lamp control circuit 26D to which the motor signal 46D has been input causes the lamp 27D to blink to indicate that the shelf device 1D is moving.

When the shelf device 1D starts as described above, the signal is inputted as a start signal 38D to the delay circuit 37C of the shelf device 1C. In the delay circuit 37C to which the start signal 38D is applied, its timer is activated and after a certain period of time, the right signal 40C is applied to the motor control circuit 42C.
Similar to D, it then moves to the right with a slight time delay.

As described above, the shelf device 1D starts first, and the shelf device 1C starts a little later. When the right limit switch 6D of the shelf device 1D contacts the actuator 8D and its signal is input to the delay circuit 37D and motor control circuit 42D, the motor ON signal 45D is stopped and the shelf device 1D is stopped. The shelf device 1C also stops when the right limit switch 6C contacts the actuator 8C. When the shelf devices 1D and 1C stop sequentially, the motor ON signal 45 disappears, so the run lamps 27D and 27C also turn off one after another, forming a passage B as shown in FIG. 3.

When the shelf device 1C starts, its delay circuit 37C
From there, a start signal 38 is sent to the delay circuit 37B of the shelf device 1B.
C is input, but at this time motor ON signal 45
Since C is being input, the delay circuit 37B does not output the path formation completion signal 41B. When the shelf device 1C stops and its motor ON signal 45C disappears, the start signal 38 from the shelf devices 1A, 1C and the stop of the shelf devices 1A, 1B are confirmed, and the passage formation completion signal 41B is sent from the delay circuit 37B. Passage control circuit 15B
is applied to

The passage control circuit 15B that receives the passage formation completion signal 41B stops outputting the movement command signal 16B and applies the normal stop signal 18B to the stop control circuit 23B. Input signal 24B. Further, the stop signal 25B and the normal stop signal 18B are input to the lamp control circuit 26B, and the lamp control circuit 26B turns on the reset lamp 28B. In this state, the stop signal 24B continues to be output and all the shelving devices are maintained in a stopped state, so there is no risk of the shelving devices being moved unexpectedly, and even if another path is selected, they will not be moved. It is safe. That is, after confirming that the reset lamp 28B is lit,
Workers can work safely by entering passage B.

When the use of passage B is finished, operate the reset switch 14B of the shelf device 1B to reset the reset circuit 20.
When a signal is input to B, the reset circuit 20B inputs a reset signal 21B to the path control circuit 15B and the stop control circuit 23B, resetting all circuits to enable selection of another path.

The formation of the selected passage in this device is as described above, but in this case, the shelf devices 1C, 1D are stopped when they have moved to a predetermined position. That is, the width of the passage becomes a predetermined width, and the width of the passage is sufficiently wide, and it takes a considerable amount of time until all of the shelving apparatuses that have been moved come to a stop.

However, in reality, such a wide passage may not be necessary.

This device is also capable of meeting such demands. This will be explained with reference to the case where path B is selected in the state shown in FIG. In this case as well, first the aisle switch 13B of the shelf device is operated to input the first signal to the aisle control circuit 15B. When this signal is input, the movement command signal 16B and other signals are output from the aisle control circuit 15B as described above, and the shelf device 1
D and 1C start moving sequentially. Then, when a path B of an appropriate width is formed between the shelf device 1C and the shelf device 1B by moving the shelf device 1C, the path switch 13B is activated.
is operated again to send the second signal to the path control circuit 15.
B, this second signal is input to output terminal 1.
The output of the movement command signal from 6B is stopped, and the normal stop signal 18B is input to the stop control circuit 23B. Therefore, the stop control circuit 23B outputs a stop signal 24B to
D is stopped at that position, and the reset lamp 28B is lit to indicate that each shelf device is maintained in a stopped state and is safe.

In this case, when the output of the movement command signal 16B is stopped, the right command signal 33B is no longer applied to the shelf device 1C from the direction selection circuit 31B of the shelf device 1B, and the right command signal 33B is no longer applied from the direction selection circuit 31B of the shelf device 1B to the shelf device 1D. 33C also stops. Similarly, shelf device 1
Also at D, the output of the right command signal 33D is stopped, and the output of the start signal 38D to the shelf device 1C is also stopped. Therefore, the timer is reset in the delay circuit 37D of the shelf device 1D, and the start signal 38B to the shelf device 1C is also stopped in the shelf device 1B.
As a result, the shelf device 1C confirms that the start signal 38D from the shelf device 1D has disappeared.
The timer of delay circuit 37C is reset. That is, the shelf apparatuses 1C and 1D stop during their movement in exactly the same circuit state as they would normally stop, and a passageway having a width narrower than the predetermined width is formed.

When you have finished using aisle B or are in the middle of it,
If you want to further widen the width of the passage B, operate the passage switch 13B again.
Outputs the movement command signal 16B in the same way as the signal of
The shelf devices 1D and 1C start moving again, and their respective limit switches 6 contact the actuators 8 and stop.

This device forms the selected passage as described above, but when a signal is input from the passage switch 13 of the selected shelving apparatus, the movement of the shelving apparatus is started from the passage control circuit 15. A command signal is applied to the direction selection circuit 31 of that shelf device. As a result, the passage selection circuit 31 outputs left or right command signals 32, 33 instructing the movement direction to the shelf apparatuses on both sides thereof, and the signals are sequentially input to each shelf apparatus. Each direction selection circuit 31 to which the left or right command signal 32, 33 is input,
Corresponding to the command signals 32, 33, left or right signals 34, 35 are input to the respective start delay circuits 37. Then, the left or right command signals 32, 33 input to the direction selection circuit 31 of the outermost shelf device are input to the delay circuit 37 as the start signal 38, so that the timer of the delay circuit 37 is activated. is activated, and the shelf device starts after a certain period of time. The start signal 38 from the delay circuit 37 of the shelving device that started first is input to the delay circuit 37 of the succeeding shelving device, its timer is activated, and after a certain period of time, the motor is driven and the shelving device starts. Repeat this to start the vehicle in sequence. That is, when either one of the left or right signals 34, 35 from the direction selection circuit 31 and the start signal 38 from the preceding shelf device are input to the delay circuit 37, the timer is activated and the predetermined timing is activated. After the specified time, the motor 4 is driven to sequentially start the vehicle.

Therefore, since the motors 4 are started one by one, there is no concentration of load, and each shelf device can be started smoothly. Then, if the front shelf device in the moving direction starts and the start signal 38 is not inputted, the timer of the delay circuit 37 of the succeeding shelf device will not operate. Since the signal will not be output from the delay circuit 37 to the motor control circuit 42 until the time elapses,
It is impossible for a plurality of shelf devices to start at the same time, and it is possible to always start one device at a time.

The electric movable shelf device of the present invention as described above is as follows:
The control circuits of the shelving devices composing it are the same circuit, and the left command signal can be applied to the left neighbor, and the right command signal can be applied to the right neighbor, between the control circuits of adjacent shelving devices. At the same time, since it is possible to apply the same start signal to both sides and start signals from both sides, it is possible to apply 4 times each between adjacent control circuits.
In addition to connecting the book signal lines, the control circuits of all shelving devices are connected with two signal lines for the motor ON signal and stop signal. The left command signal output from the control circuit of the device to the neighbor on the left is used as a start signal to be input from the neighbor on the left, while the right command signal is output from the control circuit of the shelf device located on the right to the neighbor on the right. Since all you have to do is short-circuit the terminals so that the signal becomes the start signal that should be input from the neighbor on the right, it is extremely easy to connect the shelves, and it is also easy to increase or decrease the number of shelves. It is possible.

In this way, even though the number of signal lines between each shelf device is small, it is possible to select a passage, and to form a passage having an arbitrary width narrower than a predetermined passage width.
It is possible to abnormally stop a moving shelving device by operating one of the input means in an emergency, it is possible to reset the control circuit of all shelving devices, and it is possible to control the following shelving device to a certain level after the shelving device that is moving first. This makes it possible to perform various actions such as starting the vehicle after a certain amount of time.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Figure 1 is a front view;
Fig. 2 is a plan view, Fig. 3 is a plan view with passages formed, Fig. 4 is an enlarged front view of the limit switch section,
FIG. 5 is an enlarged sectional side view of the limit switch section, FIG. 6 is an enlarged plan view of the cable support, FIG. 7 is a block diagram of the entire circuit, and FIG. 8 is a block diagram of the control circuit. 1...Shelf device, 4...Reversible motor, 5...Left limit switch, 6...Right limit switch,
7, 8... actuator, 10... control circuit,
13...Aisle switch, 14...Reset switch, 15...Aisle control circuit, 20...Reset circuit, 23...Stop control circuit, 26...Ramp control circuit, 31...Direction selection circuit, 37...Start Delay circuit, 42...Motor control circuit.

Claims (1)

[Claims for Utility Model Registration] A plurality of shelving devices are arranged so as to be movable in a direction perpendicular to their storage surfaces, and each shelving device is moved by a signal from a signal input means included in each shelving device. In a motorized movable shelving device in which a passage is formed on one side of the shelving device having the operated input means, each shelving device is equipped with a terminal that can mutually input and output signals between adjacent shelving devices. The control circuit includes a control circuit that transmits a left command signal to the left neighbor and a left command signal to the right neighbor between the control circuits of the adjacent shelf devices by signal input from the input means. can apply right command signals to each other, the same start signal can be applied to both sides, and the start signals can be applied from both sides to each other, and by inputting a signal for selecting a path from the input means, , the shelving device having the control circuit internally generates a signal instructing movement in the opposite direction to the side forming the passage, and another passage is selected and input from the control circuit of the adjacent shelving device. Based on the left command signal or right command signal, a left signal or right signal is generated internally to determine the direction of movement, and furthermore, it is possible to output a motor ON signal to the control circuit of each shelf device only while it is moving. A motor ON signal can be inputted from another control circuit, and a stop signal can be outputted to the control circuit of each shelf device to stop its movement by inputting a stop signal from the input means, and the other control circuit It is possible to input a stop signal from the shelf device located at the left end, and the left command signal output from the control circuit of the shelf device located at the left end to the left neighbor is treated as the start signal that should be input from the left neighbor, while on the other hand, The right command signal output from the control circuit of the shelf device to the right neighbor is treated as the start signal that should be input from the right neighbor, and the left command signal is input from the right neighbor and it is moved to the left from the left neighbor. Only when the start signal that is output when the vehicle starts is input, or when the right command signal is input from the neighbor on the left and the start signal is input from the neighbor on the right when it starts moving to the right. An electric movable shelf device characterized in that it starts moving only when the