JPH0243230Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to an electric movable shelf device, and particularly to a movable shelf device having a plurality of movable shelf rows arranged in parallel.

(Prior Art) There is an electric movable shelf device in which a plurality of movable shelves are arranged in a traveling direction and are movable by electric power in a direction perpendicular to the frontage surface. A conventional electric movable shelf device is provided with an open command switch for each movable shelf, and by selectively operating one of the open command switches of each movable shelf, the movable shelf is moved to the desired shelf. A working passage is formed between them.

(Problem to be solved by the invention) When trying to effectively utilize the space in which a movable shelf device is to be installed, if there are pillars of a building within the movable shelf installation space, the space divided by the pillars, etc. Multiple rows of movable shelving devices must be installed in parallel for each.
However, according to conventional movable shelving devices, when multiple rows of movable shelving devices are arranged in parallel, it is necessary to treat each movable shelf row as one unit of movable shelving devices and provide a passage formation control circuit for each row of movable shelving devices. In addition, the passage forming operation had to be performed for each row of movable shelf devices, which was troublesome.

The present invention was made in order to solve the problems of the conventional movable shelving device, and is a movable shelving device in which a plurality of movable shelf rows are arranged in parallel. When a command is issued, the movable shelves lined up in the frontage direction run in parallel so that a passage is formed at the same position for each movable shelf row,
The purpose of the present invention is to provide a movable shelf device that is easy to operate and has a simple circuit configuration, and furthermore, provides a system for transmitting and receiving control signals and supplying power for motive power between movable shelves that are arranged side by side in the frontage direction. The purpose is to secure the means.

(Means for Solving the Problems) The movable shelf device of the present invention has a plurality of movable shelf rows arranged in parallel in the running direction, each of which is a plurality of movable shelves that can run in a direction perpendicular to the frontage surface. , all movable shelves are provided with self-propelled reversible motors, and among the movable shelves constituting each movable shelf row, a common control circuit is provided for movable shelves adjacent in the frontage direction, and this control circuit The control signal is configured to receive a command signal and transition margin signals on both left and right sides, and control the output of the right row signal and left row signal in accordance with these signals, and the right row signal and left row signal are aligned in a direction perpendicular to the frontage surface. The control circuits of the movable shelves in the direction perpendicular to the frontage surface are connected to each other so that the control circuits of the movable shelves are transferred between each other, and the movable shelves that are adjacent to each other in the direction of the frontage surface among the movable shelves constituting each movable shelf row A motor drive circuit is provided to commonly control the motors in forward and reverse directions according to the output of the right-hand signal and the left-hand signal from the common control circuit, and the motor drive circuit for each movable shelf has a A limit circuit is provided to control the driving and stopping of the motor of the movable shelf depending on the presence or absence of shelf transition margin, and furthermore, a limit circuit is provided to control the driving and stopping of the motor of the movable shelf, and a power source for transmitting and receiving control signals and power source between the movable shelves arranged in parallel in the frontage direction. Features a passed cable for the supply of.

(Function) When an opening command signal is selectively issued to form a passage at a desired position, a common control circuit for movable shelves adjacent in the frontage direction outputs a right-hand signal and a left-hand signal.
The right row signal and the left row signal are exchanged between the control circuits of the movable shelves arranged perpendicularly to the frontage surface. The motors of the movable shelves adjacent to each other in the frontage direction are commonly controlled in forward and reverse directions by the motor drive circuit according to the right or left signal from the common control circuit and the left/right transition margin signal, so that the movable shelves move. passages are formed between the shelves. Control signals are exchanged through cables passed between the movable shelves arranged side by side in the frontage direction, and power for motive power is supplied, so that the movable shelves adjacent in the frontage direction move in parallel.

(Example) In the description of the illustrated embodiment, "right" and "left" refer to directions when viewed from the side of the row of movable shelves, not from the frontage side of the movable shelves.

In FIG. 1, reference numerals 11 and 12 are movable shelves arranged side by side in the direction of the frontage, and for the movable shelves 11 and 12, separate movable shelves are arranged perpendicularly to the frontage, resulting in two rows of movable shelves. A mobile shelf device is formed. Limit switches are installed on the right side and left side of each row of movable shelves 11 to detect whether there is a transition allowance on the right side and whether there is a transition allowance on the left side, respectively.
LSR1 and LSL1 are in the other row of mobile shelves 12
Limit switches LSR2 and LSL2 are provided on the right side and the left side respectively to detect the presence or absence of a transition margin on the right side and the presence or absence of a transition margin on the left side. Each movable shelf 11, 12 is provided with a self-propelled reversible motor M1, M2, respectively. An operation panel 10 common to the movable shelf 12 is provided on the side plate of the movable shelf 11. A cable 13 is passed between both movable shelves 11 and 12 for transmitting and receiving control signals and for supplying power for motive power.

FIG. 2 shows an example of the connection relationship of the limit switches. In Figure 2, the AC or DC power source includes a series circuit of the b contact of limit switch LSR1 and relay L1, and a series circuit of limit switch LSR2.
A series circuit of the b contact of limit switch LSL1 and relay L3, a series circuit of b contact of limit switch LSL1 and relay L3, and a series circuit of b contact of limit switch LSL2 and relay L3.
4 series circuit, the b contact of relay L1, and relay L
A series circuit consisting of the b contact of 2 and relay L5, the b contact of relay L3, the b contact of relay L4, and relay L.
6 series circuits are connected in parallel. Such a relay circuit is commonly provided for each set of movable shelves adjacent to each other in the frontage direction. If the number of movable shelves arranged in the frontage direction increases, limit switches and relays may be increased in a pattern similar to that shown in FIG.

FIG. 3 shows an example of a common control circuit for a set of movable shelves adjacent in the frontage direction and a motor drive circuit for each of the above-mentioned set of movable shelves. In Figure 3, the symbol 2
0 is the control circuit board, OPa and OPb are the a and b contacts of the open command switch, respectively, and ST is the b contact of the stop switch. When the open command switch is operated, a signal is input to the flip-flop circuit FF1 via the switch contact OPa and the input circuit A2, and the flip-flop circuit FF1 is preset. At that time, an open signal is output from the terminal Q of the flip-flop circuit FF1, and the open command switch is released. Then, a clear signal is input to the flip-flop circuit FF1 via the switch contact OPb and the input circuit A1, and the output of the open signal from the terminal Q is stopped. The open signal is inputted via the inverter IN1 to the NOR circuit 06 which together with the NOR circuit 07 constitutes a flip-flop circuit, and the output of the NOR circuit 06 excites the rightward drive relay RL via the driver 15R. There is. The open signal is transmitted as a right-row signal to the circuit board of the movable shelf on the right in relation to the movable shelves arranged perpendicularly to the frontage surface. Also,
A right row signal is introduced from the circuit board of the adjacent movable shelf on the left via an OR circuit 01.
The output of the terminal Q of the flip-flop circuit FF1 is transmitted as a left-row signal to the circuit board of the adjacent movable shelf on the left via an OR circuit 01 and a NOR circuit 02. Similarly, a left row signal is introduced from the circuit board on the right-hand shelf, and this left row signal causes
The signal is input to the NOR circuit 06 which together with the NOR circuit 06 constitutes a flip-flop circuit, and the output of the NOR circuit 07 excites the left direction driving relay LL via the driver 15L. 02 to the circuit board on the adjacent shelf on the left.

The a contacts of relays L5 and L6 explained in Fig. 2 are connected as shown in Fig. 3, and when the a contact of relay L5 is turned on, the A signal is input to the NOR circuit 06, and the relay RL is activated by the driver 15R.
When the excitation of relay L6 is cut off and the a contact of relay L6 is turned on, a signal is input to NOR circuit 07 via input circuit A4 and OR circuit 05, and driver 15
Excitation of relay LL by L is cut off. Furthermore, when the stop switch ST is operated and its b contact is turned off, a stop signal is output via the input circuit A5, inverter IN2, and OR circuit 03, and this stop signal is sent to the NOR circuit 06 via the OR circuit 04. At the same time, it is input to the NOR circuit 07 via the OR circuit 05, and the excitation of the relay RL or the relay LL is cut off. Also,
A stop signal is also input from the circuit board on the shelf on the right and is similarly transmitted through the OR circuit 03, and is further transmitted to the circuit board on the shelf on the left.

An AC power source for motive power is introduced into the circuit board 20 through adjacent circuit boards. Drive circuits for self-propelled motors M1 and M2 respectively provided in the pair of movable shelves described in FIG. 1 are connected in parallel to this AC power source. Motor M1,
M2 is simultaneously driven in the clockwise or counterclockwise direction through a forward/reverse drive circuit formed by a combination of the a and b contacts of the relays RL and LL. In addition, the motor drive circuit includes a limit circuit for controlling the drive and stop of the motor of each movable shelf depending on whether or not there is a margin for moving the movable shelf. It is provided by a combination. That is, the a contact of relay L1 is connected to the right rotation drive circuit of motor M1, the a contact of relay L3 is connected to the left rotation drive circuit of motor M1, and the relay L2 is connected to the right rotation drive circuit of motor M2.
The a contact of the relay L4 is connected to the left rotation drive circuit of the motor M2.

Now, when the open command switch of a desired shelf is operated, the flip-flop circuit FF1 is preset and a signal is output from its terminal Q. This signal is transmitted via the OR circuit 01 as a right-row signal to the circuit board on the shelf adjacent to the right, and via the OR circuit 01 and the NOR circuit 02 as a left-row signal to the circuit board on the shelf adjacent to the left. The output of the terminal Q of the flip-flop circuit FF1 is inputted to the NOR circuit 06 which constitutes the flip-flop circuit together with the NOR circuit 07 via the OR circuit 01 and the inverter IN1.
Relay RL is energized via. Here, if the shelf on which the open command switch was operated and the shelf adjacent to this shelf in the frontage direction have room to move to the right, limit switch LSR1 and limit switch LSR
2 is not performing limit detection operation, relays L1 and L2 (see Figure 2) are energized, and motor M
1 and M2 are rotationally driven to move the shelf to the right. I can no longer afford to migrate, so I hit the limit switch.
When LSR1 and limit switch LSR2 operate,
Relays L1 and L2 are demagnetized, the motor drive circuit is opened, and motors M1 and M2 are stopped. The running speed of each movable shelf varies depending on the size of a pair of movable shelves adjacent to each other in the frontage direction, the amount of loaded articles, etc., but the drive circuits of motors M1 and M2 of each movable shelf have individual A limit circuit is provided that controls the driving and stopping of the motor for that shelf depending on whether or not there is a transition margin for that shelf, so even if there is no transition margin for one shelf and that shelf stops running, the The adjacent shelf that is paired with the shelf continues to run as long as there is room for transition,
Eventually, the set of shelves will stop at the same position. The passage forming operation is performed as described above.

When a pair of movable shelves adjacent to each other in the frontage direction move to the right, and limit switches LSR1 and LSR2 both operate because there is no room for them to move to the right, both relays L1 and L2 in Fig. 2 are activated. Relay L that was demagnetized and was not energized until then
5 is excited and its a contact (see Figure 3) is turned on, and the NOR circuits 06 and 0 forming the flip-flop circuit are connected via the input circuit A3 and the OR circuit 04.
An "H" signal is applied to the NOR circuit 06 of No. 7, the excitation of the relay RL is cut off, and the output of the rightward drive signal is cut off.

Similarly, when a pair of movable shelves adjacent to each other in the frontage direction move to the left, and there is no room left for them to move to the left, relay L6 is energized and its a contact (see Figure 3) is activated. Turns on, cuts off the excitation of relay LL, and cuts off the output of the left direction drive signal.

When relay L5 or relay L6 is energized, it is transmitted to each control circuit that controls the movement of each set of shelves through a main control circuit (not shown), and outputs a rightward drive signal or leftward drive signal in each control circuit. It is designed to be stopped.

The above-mentioned passage forming operation is performed in the same way when a right-going signal is input from the shelf adjacent to the left. Furthermore, when a left-hand signal is input from the shelf on the right, the left-hand signal is input to the NOR circuit 07, and its output energizes the relay LL, which causes the motor M1, M2 is rotationally driven to drive the shelf to the left, and the passage forming operation is performed in the same manner as in the previous case.

If it is necessary to urgently stop the movement of the movable shelf during the passage forming operation, operate the stop switch ST. When the switch ST is operated, the b contact is turned off, and the OR circuit 04 and the OR circuit 05 are connected through the input circuit A5, the inverter IN2, and the OR circuit 03.
A signal is input to the OR circuits 04 and 05, and the output of the flip-flop circuit consisting of the NOR circuits 06 and 07 is stopped, so the relay
The excitation of RL or relay LL is cut off, and the moving shelf stops on the spot. The stop signal is transmitted to all circuit boards, and the movement of all movable shelves is stopped on the spot.

The circuit board 20 shown in FIG. 3 is installed as a common circuit board for the movable shelves arranged in the frontage direction, and is installed on the movable shelf representative of the movable shelves arranged in the frontage direction, for example, in the example of FIG. 1, the movable shelf 11. The transmission and reception of control signals based on the operation of limit switches, stop switches, etc. between the movable shelves arranged in the direction of the frontage, and the supply of power for power to the drive motor, are performed using cables passed between the movable shelves arranged in the direction of the frontage. It is done through.

If the number of movable shelves arranged in the frontage direction increases, a motor drive circuit may be added in parallel to the motor drive circuit as shown in FIG.

FIG. 4 shows an example of electrical connections between movable shelves arranged in a row in the running direction and between movable shelves arranged in a frontage direction. In FIG. 4, the installation space for the movable shelving device is divided by a support column 24 of the building, and each divided space is denoted by 21a and 21b.
...A row of movable shelves indicated by 21g and symbols 22a, 2
2b...The movable shelf row shown by 22g and the code 23
A row of movable shelves indicated by a, 23b, . . . 23g are installed. The movable shelves in each row are mounted on rails 25 so as to be movable along the rails.

Each movable shelf has a drive motor for self-propulsion, and the movement and stopping of the three movable shelves arranged in the frontage direction are controlled by one control circuit board. The circuit board is mounted on a reference mobile shelf, for example, 21a, 2.
The transfer of control signals and the supply of power between the movable shelves arranged in the direction of the frontage surface, which are provided on the movable shelves indicated by 1b...21g, are carried out between the top plates of the movable shelves arranged in the direction of the frontage surface. This is done via a cable 27 that is passed over. However, since the cable 27 cannot be passed between shelves adjacent in the frontage direction with the support 24 interposed therebetween because the support 24 gets in the way, the cable is passed around the shelves adjacent in the running direction quickly.

The above mobile shelves 21a, 21b...21g serve as standards
The transmission and reception of right-going signals, left-going signals, stop signals, etc. between the shelves is carried out by the swing arm 2 that is passed between the shelves.
This is done via a cable along 8.

5 to 7 show in detail a specific example for passing the cable 27 between movable shelves. In FIGS. 5 to 7, shelves 21 arranged in the frontage direction,
A plate-shaped passing member 26 is passed between the top plates 22, and a cable 27 is passed along this passing member 26. The cable 27 is movable relative to the transition member 26 within a certain range.
It is placed along the transition member 26 with a certain amount of margin. The pins 30 fixed to both ends of the passing member 26 are fitted into the long holes 29, 29 formed in the top plates of both shelves, so that the pins 30 are fixed to both ends thereof.
It is provided so that it can be moved in the running direction of the shelf within a range of . A limit switch 31 is provided on the side of the pin 30. This limit switch 31 is provided in series or in parallel with the limit switches LSL1, LSR1, etc. explained with reference to FIG.
When activated, the movement of the movable shelf is stopped.

As shown by reference numeral 32 in FIG. 8, the passing member has a shaft hole 33 formed at one end thereof pivotably supported in a horizontal plane on one of the shelves arranged in the frontage direction, and a shaft hole 33 formed at one end thereof is rotatably supported in a horizontal plane. The formed elongated hole 34 may be fitted into a pin or the like on the other shelf. Since the passing member 32 rotates when it hits the pillar, this rotation is detected by limit switches 35, 35, and the movement of the shelf is stopped. In this case, two limit switches 35 and 3 are placed on both sides of the transition member 32.
5, one of the limit switches can be used as the right-hand limit switch, and the other limit switch can be used as the left-hand limit switch.

As shown by reference numeral 36 in FIG. 9, the passing member is constructed by fitting long holes 37, 37 formed at both ends into pins, etc. of shelves arranged in the frontage direction, so that the passing member can be moved as the shelves arranged in the frontage direction move. The member 36 may be moved. Then, limit switches 38 may be provided on both sides of both ends of the passing member 36, so that when the limit switches 38 detect left and right movement of the passing member 36, the movement of the shelf is stopped.

The examples shown in Figures 8 and 9 are examples of transition members for passing cables between movable shelves lined up in the frontage direction.Using this, a limit switch is installed to detect obstacles such as building supports. It was hot, but
A limit switch for detecting obstacles may be provided alone. FIG. 10 shows an example of this, in which one end of a wire 41 is fixed to one side 21 of the movable shelves lined up in the frontage direction, and the wire 41 is connected to the other movable shelf 21 via a pulley 42.
The other end of the wire 41 drawn into the wire 41 is connected to a limit switch 44 via a spring 43. When the wire 41 is caught by an obstacle such as a support, tension is applied to the spring 43 and the limit switch 44 is
is activated, thereby making it possible to stop the movable shelf.

In addition, due to differences in the amount of luggage loaded, etc., there will be a difference in traveling speed between the movable shelves lined up in the frontage direction, and the first
As shown in FIG. 1, the transition member 26 hits an obstacle such as the support column 24 in a tilted state, or
Even if there are no obstacles, the movable shelves lined up in the frontage direction may move back and forth significantly, as shown in FIG. 12, and the transition member 26 may tilt significantly. However, as explained with reference to FIG. 3, the movable shelves arranged in the direction of the frontage surface stop on the same surface. Note that each movable shelf may be controlled to move at the same speed while detecting the movement of the drive motor or power transmission mechanism.

Note that there are various types of mobile shelves. The movable shelves shown in FIG. 13 are flat ones without supports, and flat movable shelves 51, 52, 53 are arranged side by side in the frontage direction in a space partitioned by the pillars 24, 24 of the building. Cables 55 and 56 are passed between them for exchanging control signals and supplying power for motive power. One shelf 51 representing the shelves arranged in the frontage direction is provided with an operation board 57, and this operation board 57 is provided with an open command switch 58 common to the pair of movable shelves arranged in the frontage direction. ing.

The movable shelf shown in FIG. 14 is an example of a movable shelf without a top plate, and movable shelves 61, 61,
Cables 65, 65 for transmitting and receiving control signals and supplying power for motive power are passed between the support columns 64, 64. A movable shelf 61 representing the movable shelves lined up in the frontage direction is provided with an open command switch 66 common to the pair of movable shelves lined up in the frontage direction.

The present invention can be applied even if the space in which the movable shelf device is to be installed is not necessarily divided by a building support or the like. For example, depending on various conditions such as the type of items to be stored, it may be preferable to partially vary the height of the shelves, but it is not advisable to partially vary the height of one shelf due to cost considerations. It is disadvantageous. On this point, if the movable shelves are separated and arranged side by side and moved in parallel as in the present invention, it is possible to change the height of each movable shelf in each row. You can freely select the height of the movable shelf according to your purpose. In addition, when multiple rows of movable shelves are arranged in parallel in the form of dividing them in the frontage direction as in the present invention, each movable shelf becomes small and lightweight, so it is relatively easy to move them manually in the event of a power outage, etc. Furthermore, since a space is formed between the movable shelves in each row, there is also the effect that if the movable shelves start to move unexpectedly due to a malfunction or the like, the movable shelves can easily escape into the space.

(Effects of the invention) According to the invention, when the installation space of a movable shelving device is divided by a building support or the like and a movable shelf with a large frontage cannot be installed, the movable shelf can be installed in each divided space. When installed in parallel, multiple rows of movable shelves can be moved in parallel to form a passageway at the same position by operating a common open command switch for each movable shelf row, making the operation easy. Furthermore, since it is not necessary to provide a control circuit for every movable shelf, the control circuit can be simplified. This effect is achieved by passing cables for transmitting and receiving control signals and supplying power for motive power between the movable shelves arranged in parallel in the frontage direction.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of a movable shelf device according to the present invention, FIG. 2 is a circuit diagram showing an example of a limit switch circuit that can be used in the present invention, and FIG.
The figure is a circuit diagram showing an example of a control circuit that can be used in the present invention, FIG. 4 is a plan view showing another embodiment of the movable shelf device according to the present invention, and FIG. 5 is a transfer member in the same embodiment. FIG. 6 is a plan view showing an enlarged portion of the cable in the above embodiment;
FIG. 7 is a plan view showing different operating modes of the same cable portion, FIG. 8 is a perspective view showing another example of the transition member applicable to the present invention, and FIG. 9 is a plan view showing another example of the transition member applicable to the present invention. A perspective view showing yet another example, 1st
Fig. 0 is a front view showing an example of a limit switch applicable to the present invention, Fig. 11 is a plan view showing an example of the movement of the movable shelf device according to the present invention, and Fig. 12 is a movement of the movable shelf device according to the present invention. A plan view showing another example of
FIG. 13 is a front view showing still another embodiment of the movable shelf device according to the present invention, and FIG. 14 is a front view showing still another embodiment of the movable shelf device according to the present invention. M1, M2... Self-propelled reversible motor, 20...
Control circuit board, OPa, OPb...Open command operation switch, RL, LL...Relay for forward/reverse control, L1,
L2, L3, L4... Relays forming the limit circuit, 13, 26, 55, 65... Cables,
LSR1, LSR2, LSL1, LSL2...Limit switch.

Claims (1)

[Scope of utility model registration request] A plurality of rows of movable shelves are arranged in parallel in the running direction, and each movable shelf is provided with a reversible motor for self-propulsion, and each movable shelf is A common control circuit is provided for adjacent movable shelves in the frontage direction among the movable shelves composing the row,
This control circuit is configured to receive at least an open command signal and transition margin signals on both left and right sides, and control the output of the right row signal and left row signal in accordance with these signals, and the right row signal and left row signal are The control circuits of the movable shelves arranged perpendicularly to the frontage plane are connected to each other so that the control circuits of the movable shelves arranged perpendicularly to the frontage plane are exchanged between each other, and A motor drive circuit is provided so that the self-propelled reversible motors of movable shelves adjacent in the plane direction are commonly controlled in forward and reverse directions according to the output of the right-hand signal and the left-hand signal from the common control circuit, and each In a movable shelf device, the motor drive circuit of the movable shelf is provided with a limit circuit for controlling the drive and stop of the self-propelled reversible motor of the movable shelf depending on the presence or absence of transition margin of each movable shelf. , a movable shelf device in which cables for transmitting and receiving control signals and supplying power for motive power are passed between movable shelves arranged side by side in the frontage direction.