JPH0529443B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a movable shelf device in which a plurality of shelves are movably arranged.

(Prior art) By selecting an aisle selection switch, the movable shelf to be moved and the direction of movement thereof are determined based on the relationship between the designated aisle position and the position of the movable shelf at that time, and the Therefore, a movable shelf device is already known in which a movable shelf is moved by electric power to form a working path at a designated position. However, according to such a conventional movable shelf device, the movable shelf to be moved and the direction of movement thereof must be determined from the relationship between the designated aisle position and the position of the movable shelf at that time, so the circuit configuration However, there were problems in that it became extremely complex, increased production costs, and was prone to failure.

(Objective) An object of the present invention is to provide a highly reliable mobile shelf device that has a simple circuit configuration, fewer failures, and high reliability.

Another object of the present invention is to provide a movable shelf device that enables passage forming operations by remote control by devising a circuit configuration.

(Configuration) In order to achieve the above object, the present invention includes a designated switch provided corresponding to each shelf, a right-hand operation switch that outputs a right-hand signal when operated, and a left-hand operation switch that outputs a left-hand signal when operated. A row operation switch is provided corresponding to each shelf, and when the opening operation switch is operated, a movement signal is output at the shelf specified by the operation of the designated switch, and the output of the movement signal is stopped when the release operation switch is operated. A right/left switching circuit is provided corresponding to each shelf. on the condition that the movement signal is output from the open/release discrimination circuit.
and an operating circuit that outputs a signal for driving the shelf in the rightward or leftward direction in accordance with the output signal of the leftward switching circuit, and the designation switch, the rightward operation switch, and the leftward control circuit. It is characterized in that the operation switch, the opening operation switch, and the release operation switch are remote operation means.

The present invention will be explained below with reference to illustrated embodiments.

In FIG. 1, numerals 1 and 1a indicate shelves, and while the leftmost shelf 1a is fixed on the floor, the other shelves 1 are converged together with the fixed shelf 1a, and are spaced apart from each other. They are movably arranged so that a working passage can be formed between the shelves. Each movable shelf 1 has a passage forming control circuit board 22, and the fixed shelf 1a has a main circuit board 22a, a circuit board that includes a receiving circuit for signals sent by remote control, and a discriminating circuit for received signals. It has 23. The side panel of each shelf 1, 1a is provided with an operation panel 2 to which a passage formation command signal can be inputted by direct manual operation, and the side panel of the fixed shelf 1a is further provided with a general operation panel 2b. There is.

FIG. 2 shows a transmitting device for remotely controlling the movable shelf device as shown in FIG. , a switch 27 for specifying a number corresponding to each movable shelf, a clear switch 28, an opening operation switch 29, a release switch 30,
It has an emergency stop switch 31 and a power switch 32.

Next, an example of a circuit configuration used in the present invention will be explained. In FIG. 3, the transmitting device 24 has a transmitter that emits various command signals such as a left-going signal, a right-going signal, and a movable shelf selection signal using radio waves as a medium. Various signals emitted as a medium are received by a receiving circuit 107 within the circuit board 23. This signal is transmitted and received using a known method, such as a wireless method using light or radio waves as a medium, or a wired method using a cable. Receiving circuit 107
The various signals received and discriminated are sent to the signal discrimination circuit 110, and in the signal discrimination circuit 110, the first
No., No. 2, . . . Determine the presence or absence of the open signal of the N-th mobile shelf, and determine the circuit board 2 to which each signal corresponds.
2 open command signal input terminals O ₁ , O ₂ . . . _ON . This open signal may be considered to be the same as an open command signal manually input directly in a conventional mobile shelf. The signal discrimination circuit 110 also discriminates whether the operation is remote control or direct manual operation, and further switches the signal according to the operation of the left row setting switch 25 or right row setting switch 26 to control each shelf. It is designed to be input to the circuit board 22 of. In Fig. 3, symbols 5A and 5B
is a light emitter, and 6A and 6B are light receivers. Light emitter 5
A and the light receiver 6A, and the light emitter 5B and the light receiver 6B form a set, and one set of light emitters and the light receivers 5A and 6A
is located on the outside of the other sets of light emitters and receivers 5B and 6B when viewed from the movable shelf side, and when a person or forklift etc. enters the passage formed between the shelves, the light emitters 5A and 6B are located outside. After blocking the light of the light emitter 5
The light from the light emitting device 5B is blocked, and then the light from the light emitting device 5A is blocked when exiting from the passage. The signal discrimination circuit 110 receives signals from the light receivers 6A and 6B, outputs or stops the lock signal _L0 based on the signals from the light receivers 6A and 6B, and
It is designed to add and subtract a counter, which will be described later.

Next, a detailed configuration example of the signal discrimination circuit 110 will be explained. In FIG. 4, the receiving circuit 107 inputs a signal corresponding to the remote operation mode or manual operation mode to the remote/manual switching circuit 104 depending on whether the remote operation mode or the manual operation mode is selected. In addition, when an open signal or a release signal corresponding to each mobile shelf is received, these signals are discriminated by the corresponding one of the open/release discrimination circuits 105 provided corresponding to each mobile shelf. It is designed to be input to the circuit, and furthermore,
When a right row signal or a left row signal is received, a corresponding signal is input to the right/left row switching circuit 106. The outputs of each open/release discrimination circuit 105 are collectively input to NOR circuit no. ₁ , and
The information is input to an operation circuit 109 provided corresponding to each shelf. The remote/manual switching circuit 104 effectively operates each open/release discrimination circuit 105 when a signal indicating that remote operation is input is input, and on the other hand, when a signal indicating manual operation is input, each open/release discrimination circuit 105 is activated. The operation of the release determination circuit 105 is stopped to make remote control impossible.
An output signal from the right/left row switching circuit 106 is applied to each operation circuit 109. code 1
01 is the aforementioned emitter/receiver 5A, 5B, 6A, 6
A foreign object detection circuit including B, 102 is a foreign object detection circuit 1
103 is a display unit that displays the counted value of the counter 102. counter 102
If there is even one person in the aisle and the count value is 1 or more, the AND circuit a ₁ outputs an "H" signal.
(Hereinafter, AND circuits will be abbreviated as ``a <sub>1</sub> '' and ``a ₂ ''). When any shelf is moving, an "H" signal is issued as an operating signal, but when all shelves are stopped, the operating signal becomes "L", which is output as an "H" signal by inverter IN ₁ .
is inverted and added to a ₁ .
The output of a ₁ and the output of NOR circuit no ₁ are OR circuit O ₂
(Hereinafter, the OR circuits will be abbreviated as “O ₁ ” and “O ₂ ”), and the output of O ₁ is applied to the lock signal output circuit 108 .

A specific example of the remote/manual switching circuit 104 will be explained with reference to FIG. In FIG. 5, the remote control signal input from the receiving circuit is input to the set terminal of the flip-flop circuit _FF1 via _O2 , so that the remote control signal is output from the output terminal Q of the flip-flop circuit _FF1 . It has become
Further, the manual operation signal inputted from the receiving circuit is inputted to the reset terminal of the flip-flop circuit _FF1 , so that the manual operation signal is outputted from the output terminal of the flip-flop circuit _FF1 . The remote/manual switching circuit 104 includes an initial reset circuit IR, which inputs the initial reset signal generated when the power is turned on to the set signal terminal of the flip-flop circuit FF ₁ via _O2 . , and output to other circuits.

FIG. 6 shows a specific example of the open/release circuit 105. As shown in FIG. 6, the open/release discrimination circuit 105 includes a ₂ , a ₃ , o ₃ and a flip-flop circuit FF ₂ , and a ₂ receives an open signal from the receiving circuit. , a remote control signal, and a foreign object detection signal from the foreign object detection circuit 101 are input, and _a3 has the following information:
The release signal from the receiving circuit and the remote control signal are input, the initial reset signal and the output signal of _{a3 are input to o3 ,} and the flip-flop circuit
FF ₂ is configured so that the output of a ₂ is applied to its set terminal, and the output of o ₂ is applied to its reset terminal. Therefore, under the conditions that the remote control mode is in effect, the open signal is input, and no foreign object has entered the passage, a set signal is input from _a2 to the flip-flop circuit _FF2 , and the flip-flop circuit is activated.
A movement signal is output from the FF ₂ terminal. However, if the flip-flop circuit FF2 is in the remote control mode and a release signal is input, the flip-flop circuit _FF2 is reset and the output of the movement signal is stopped.

FIG. 7 shows a specific example of the right/left row switching circuit 106. The right/left switching circuit 106 is connected to the receiving circuit 10.
When the right row operation signal is input from 7, this signal is differentiated by the differentiator DIF ₂ and then applied to the set terminal of the flip-flop circuit FF ₃ , thereby setting the flip-flop circuit FF ₃ to the right side of that terminal. The left signal becomes "H", and this "H"
When the signal becomes a right row signal and a left row operation signal is input from the receiving circuit 107, this signal is differentiated by the differentiating circuit DIF ₂ and then applied to the reset terminal of the flip-flop circuit FF ₃ . FF ₃ is reset and the right and left row signals of that terminal become "L", and this "L"
The signal is designed to be a left-hand signal.

FIG. 8 shows a specific example of the operation circuit 109. The operation circuit 109 includes _{A4 , A5} , etc., to which the movement signal explained in FIG. ₆ is inputted, and an emergency stop signal is inputted via the inverter _IN5 . In addition _{, a5} has the right and left row signals of the terminals of the flip-flop circuit _FF3 in _FIG. It can now be added via The above emergency stop signal is output as an "H" signal by operating the emergency stop switch 31 in FIG. 2, but since this emergency stop means is not directly related to the gist of the present invention, the specific Signal receiving and transmitting means are not disclosed. Now, there is no emergency stop signal input, the right/left signal is "H" and the right signal is being output, and the opening/release determination shown in FIG. 6 is made by operating the opening operation switch 29. Assuming that the movement signal is input from the circuit 105, an "H" signal is output from _a5 , and this "H" signal is delayed by the integrating circuit _INT2 and then inverted to "L" by the inverter I _N8 . is applied to one end of relay LL ₁ , so relay LL ₁ is energized and its contacts
L ₁ is turned on and outputs the right row signal. The relay contact _L1 may be considered to be similar to a manually operated opening switch, and therefore, the above-mentioned rightward signal may be considered to be the same as that outputted by manual operation. Also, when the right and left signals are "L" and the left signal is output, the "H" signal is output from _a4 , and this "H" signal is delayed by the integration circuit INT ₁ . Later, it is inverted to "L" by inverter I _N7 and applied to one end of relay LR ₁ , so relay LR ₁ is energized and its contact R ₁
is turned on and outputs a left-hand signal. This leftward signal can also be considered to be the same as that output by manual operation.

Since the embodiment of the present invention is configured as described above, the remote control mode is currently set, and the selection operation of the designation switch 27 of the transmitting device 24 allows the shelf facing the passage formed between the shelves to be moved. It is assumed that the user specifies the shelf located on the left side of the list, then presses the right row setting switch 26, and then presses the opening operation switch 29. By the selection operation of the designation switch 27 and the operation of the opening operation switch 29, an open signal is input to the open/release discrimination circuit 105 corresponding to the selected shelf, and the flip-flop circuit FF ₂ is input from a ₂ shown in FIG. A signal is applied to the set terminal of the flip-flop circuit _{FF2, and a shift signal is output from the terminal of the flip-flop circuit FF2} , and this shift signal is applied to the operating circuit as shown in FIG. Further, by operating the right row designation switch 26, a right row operation signal is applied to the right/left row switching circuit ₁₀₆ shown in FIG. An "H" signal is output as a signal and applied to the operating circuit 109 in FIG. In the operation circuit 109, as mentioned above, the output of _a5 becomes "H", relay _LL1 is energized, and the operation of its contact _L1 outputs a rightward signal, which causes the shelf facing the left side of the aisle to move. Move towards the right. As is well known, the shelf is driven to the right or left by a forward and reverse motor, which motor is driven by a well known drive circuit. When the moved shelf contacts the opposite shelf, a limit switch (not shown) detects that there is no more room for movement, and stops a motor drive circuit (not shown) to stop the movement of the shelf. After that, when the release switch 30 is operated, a release signal is output to open/release corresponding to the selected shelf.
It is input as a reset signal to the flip-flop circuit FF ₂ via a ₃ and o ₃ in the release determination circuit 105, and the output of the movement signal is stopped. This results in the fourth
All the inputs of NOR circuit No. ₁ in the figure become "L" and the output of the same circuit No. ₁ becomes "H", and a lock signal is outputted via o ₁ and the lock signal output circuit 108, and a An interlock is applied and each shelf is restrained from movement. Such an interlock is applied even when the shelf is not in operation and there is a person or the like in the aisle. That is,
If there is a person in the aisle, the counter 102
The "H" signal is applied to a ₁ , and if the shelf is not operating, the "L" operation signal is inverted to "H" by the inverter I _N1 and added to a ₁ , so a ₁
This is because the lock signal becomes "H" and a lock signal is output via _o1 and the lock signal output circuit 108.

Next, when a passage is to be formed in a different position, the shelf facing the already formed passage is selected and set to right or left, and the opening operation switch 29 is operated. By performing such an operation, the shelf facing the already formed passageway is moved to the right or left, and a passageway is formed at a different position. In this way, if the movable shelf device of the above embodiment is used, one
By moving the movable shelves one by one, a passage can be formed at a predetermined position. According to such a movable shelf device, there is no need to determine the movable shelf to be moved and the direction of its movement based on the relationship between the pre-formed passage position and the designated passage position, so the circuit configuration is extremely simple. It has the effects of being simplified, production cost low, and failures less likely to occur.

(Effects) According to the present invention, the opening operation is performed for each movable shelf, and if the shelf has room to move, it can be moved, and the movable shelves are sequentially moved one by one. Like a mobile shelf, a circuit is provided that determines the mobile shelf to be moved and the direction of its movement based on the relationship between the designated aisle position and the current position of the mobile shelf by selecting an aisle selection switch. This is not necessary, and therefore, it is possible to provide a movable shelf device with an extremely simplified circuit configuration, low production costs, and fewer failures. In addition, a designation switch, a right-hand operation switch, a left-hand operation switch, an open operation switch, and a release operation switch are provided, and when the right-hand operation switch is operated, the right-hand operation signal is activated.
an open/release discrimination circuit that outputs a left-row signal when a left-hand operation switch is operated, further outputs a movement signal when an opening operation switch is operated, and stops outputting the movement signal when a release operation switch is operated; A right/left switching circuit that switches the output signal depending on the right/left signal, or a right/left switching circuit that switches the output signal depending on the output signal of the right/left switching circuit when the above movement signal is output. Since an operating circuit that outputs a drive signal in the direction is provided, even if the specified switch, right-hand operation switch, left-hand operation switch, open operation switch, and release operation switch are used as remote control means, the right-hand movement signal and the left-hand movement signal will be output. Since it is possible to output various signals such as signals and movement signals, and also to form a passage at a desired position based on these signals, such a passage forming operation can be performed by remote control. It has the effect of being able to.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of the external appearance of the device of the present invention, Fig. 2 is an external front view showing an example of a transmitting device used in the device of the present invention, and Fig. 3 is an example of an electric circuit used in the device of the present invention. 4 is a block diagram showing in more detail the signal discrimination circuit part in the above electric circuit, FIG. 5 is a circuit diagram showing a specific example of the remote/manual switching circuit in the above discrimination circuit, and 6. The figure is a circuit diagram showing a specific example of the open/release discrimination circuit in the signal discrimination circuit, FIG. 7 is a circuit diagram showing a specific example of the right/left row switching circuit in the signal discrimination circuit, and FIG. 8 is the circuit diagram shown in the above FIG. 3 is a circuit diagram showing a specific example of an operation circuit in the signal discrimination circuit. 24... Transmission device, 25... Left line setting switch, 26... Right line setting switch, 27... Designation switch, 29... Opening operation switch, 30... Release switch, 104... Remote/manual switching circuit, 10
5... Open/release discrimination circuit, 106... Right/left row switching circuit, 107... Receiving circuit, 109... Operation circuit.

Claims (1)

[Scope of Claims] 1. A movable shelf device in which a plurality of shelves are movably arranged, a designation switch provided corresponding to each shelf, a right-hand operation switch that outputs a right-hand signal when operated; A left-hand operation switch that outputs a left-hand signal, and a left-hand operation switch that is provided corresponding to each shelf and outputs a movement signal when the opening operation switch is operated on the shelf specified by the operation of the specified switch, and a release operation switch. an open/release discrimination circuit that stops the output of the movement signal by operation; a right/left row switching circuit that switches the output signal according to the right row signal from the right row operation switch or the left row signal from the left row operation switch; Provided that a movement signal is output from the open/release discrimination circuit provided corresponding to each shelf, the shelf can be moved in the right or left direction according to the output signal of the right/left switching circuit. and an operation circuit that outputs a signal for driving in the leftward direction, and the designated switch, rightward operation switch, leftward operation switch, open operation switch, and release operation switch are remote control means. A mobile shelf device featuring: 2. The movable shelf device according to claim 1, wherein the remote control means is a wireless control means.