JPH0122534Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric movable shelf capable of forming a plurality of working paths.

In an electric movable shelf that moves the movable shelf by selecting an opening command switch to open a passage between specified shelves, multiple workers can simultaneously load and unload items at different aisle positions. It would be convenient if working paths could be formed at multiple locations simultaneously so that work could be carried out.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electric movable shelving device that can simultaneously form working passages in a plurality of locations.

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

In FIG. 1, in front of a fixed shelf 1 fixedly set up on the floor, there are a plurality of units of movable shelves 2a, 2.
b, 2c, . . . are arranged so as to be movable in a direction perpendicular to the opening surface. As shown in FIG. 2, a lighting lamp 4 is supported on the top plate of each shelf, which can illuminate a working path formed in front of each shelf. Adjacent shelves are connected by pivoting swing arms 3 on the top plate of each shelf at the tips of both, and a control signal line is routed through the swing arms. In addition, a passage width regulating switch 3a is provided for each shelf to form a passage of a predetermined width between adjacent shelves and to open a contact point when the swing arm 3 is rotated by a predetermined angle and is pushed by the swing arm 3. . As shown in Fig. 3, on the side plate of the fixed shelf 1, there are a power indicator lamp 7 that indicates that the power is on, a power indicator lamp 8 that lights up when the main switch is turned on, and a release command switch. 9. An operation panel 5 having a stop switch 10 and a key switch 11 that can be turned on only by inserting and rotating a predetermined key.
is provided. In addition, each mobile shelf 2a, 2b,
As shown in FIG. 4, an operation panel 6 having an open command switch 12 and a stop switch 13 is provided on the side plate of 2c.

In FIG. 5, reference numeral 21 is a circuit board built into the fixed shelf 1, and 22a, 22b, and 22c are circuit boards built into the movable shelves 2a, 2b, and 2c. The circuit board 21 of the fixed shelf 1 has an open command and passage lock circuit 23, a right-hand command circuit 25, an abnormal state detection circuit 26, and a full stop command circuit 31. On the other hand, each mobile shelf 2a, 2b, 2c
The circuit boards 22a, 22b, 22c are used for opening command and path lock circuits 23a, 23b, 23, respectively.
c, left row command circuits 24a, 24b, 24c,
Right-hand command circuits 25a, 25b, 25c, abnormal state detection circuits 26a, 26b, 26c, stop limit detection circuits 27a, 27b, 27c, motor control circuits 28a, 28b, 28c, and running detection circuits 29a, 29b. , 29c, and motor drive sections 30a, 30b, and 30c. Each open command and passage lock circuit 23, 23a, 23b,
When the open command switches 9, 12a, 12b, and 13c on each shelf are pressed and turned on, an open command signal is input to 23c, and the passage width regulation switch 3a on each shelf is input. When the switch is activated and turned off, a lock signal is input. The open command and passage lock circuit 23 in the fixed shelf inputs a signal to the right row command circuit 25 by inputting the open command signal, and inputs a signal to the motor control circuit 28a and the left row command circuit 25 in the board 22a of the adjacent shelf by inputting the lock signal. A stop signal is input to the row command circuit 24a, and a lock indicator lamp LL is turned on. Also, the opening command and passage lock circuits 23a, 23b, 23 for each movable shelf are provided.
c indicates that when an open command signal is input by operating the open command switch on each shelf, the left command circuits 24a, 24b, 24 on each shelf are activated.
By inputting the lock signal, the right row command circuits 25a, 25b, 25 on each shelf are inputted.
c and motor control circuit 2 on the shelf adjacent to the right side.
A stop signal is input to 8b, 28c and left row command circuits 24b, 24c, and the lock indicator lamps LLa, LLb, LLc of the respective shelves are turned on. Right row command circuit 25, 25 for each shelf
a, 25b are designed to input right-hand command signals to right-hand command circuits 25a, 25b, 25c and motor control circuits 28a, 28b, 28c on the shelves adjacent to the right side, respectively, by inputting signals. . The left-hand command circuits 24c and 24b of each shelf transmit a left-hand command signal by inputting a signal to the left-hand command circuits 24b and 24a of the adjacent shelves on the left side, respectively.
At the same time, the left row command circuit 24c of each shelf,
24b, 24a are adapted to input signals to motor control circuits 28c, 28b, 28a in the respective shelves. The abnormal state detection circuits 26, 26a, 26b, 26c on each shelf are, for example,
An abnormality signal is output when a human body or a fallen object comes into contact with a foreign object detection bar provided on the frontage of the shelf, and an abnormality signal is output from the abnormality detection circuits 26, 26a, 26b, and 26c of each shelf. All abnormality detection signals are input to a full stop command circuit 31 provided on the fixed shelf. Stop switches 10, 13a, 13b, 13 provided on each shelf
c are connected in series to the full stop command circuit 31, and when any one of the stop switches is operated and turned off, a signal is input to the full stop command circuit 31. The full stop command circuit 31 applies a full stop signal to each motor control circuit 28a, 28b, 29c by inputting a signal, and also issues a command to open each shelf and to the aisle lock circuit 23,
A lock signal is applied to 23a, 23b, and 23c. The stop limit detection circuits 27a, 27b, and 27c in each movable shelf detect when there is no longer any movement margin for each movable shelf, and apply a stop signal to the respective motor control circuits 28a, 28b, and 28c. . Each motor control circuit 28a, 28b, 28c controls each motor drive unit 30a, 30b, 30c in forward or reverse direction, and also controls it to stop, according to the input left signal, right signal, and various stop signals. It's getting old.
Each motor drive unit 30a, 30b, 30c includes a drive motor for each shelf, and rotates the motor in the normal direction in response to a left signal, a right signal, and a stop signal input from each motor control circuit 28a, 28b, 28c. It switches between the forward and reverse circuits, and also cuts off the power supply to the motor. A signal is output by inputting a left row signal and a right row signal from each motor control circuit 28c, 28b, 28a. The output signals of the in-operation detection circuits 29c and 29b are input to the in-operation detection circuits 29b and 29a on the left shelf, respectively, and the output signals of the in-operation detection circuit 29a on the leftmost movable shelf are input to the opening command and passage of each shelf. Lock circuits 23a, 23b, 23c
It is designed to be input as a lock signal.

Incidentally, when increasing the number of units of movable shelves, the circuit boards of the increased shelves may be connected to each other in the same manner as the connections shown in FIG.

Now, when the fixed shelf 1 and the movable shelves 2a, 2b, and 2c are all converged, if you want to form a passage between the fixed shelf 1 and the movable shelf 2a, turn the open command switch on the fixed shelf 1. Press 9. The switch 9 is turned on by pressing the button,
An open command signal is input to the open command and aisle lock circuit 23, and the open command and aisle lock circuit 23 applies a right row signal to the right row command circuit 25a of the shelf adjacent to the right side. Control circuit 28
Add the right signal to a. In addition, the right row command circuit 25
a is the right-hand command circuit 25b of the shelf adjacent to the right side.
Then, this right-going command circuit 25b further inputs a right-going signal to the right-going command circuit 25c of the shelf adjacent to the right side, and the right-going circuits 25b, 25c of each of these shelves control the motor control circuit 28b of those shelves. ,28c
Add right row signal to . Each motor control circuit 28
a, 28b, 28c are motor drive units 30a, 30b, 30c, respectively, by inputting the right row signal.
The normal rotation circuit of the drive motor is closed, and each movable shelf 2a, 2b, 2c is moved to the right to open the gap between shelf 1 and shelf 2a. In this way, when a passage with a predetermined interval is formed between the shelves 1 and 2a, the passage width regulating switch 3a is turned off by the swing arm 3 between the shelves 1 and 2a, and the opening command and passage lock circuit are turned off. A lock signal is input to 23. The open command and passage lock circuit 23 inputs a lock signal to the motor control circuit 28a of the adjacent shelf in response to the input of the lock signal, thereby locking the shelf 2a circuit-wise so that it cannot move, and sequentially moves the shelf 2a to the right from the right-hand command circuit 25. A stop signal is input to the right-hand movement command circuits 24a, 24b, and 24c of the shelves to stop the right-hand movement of each shelf.

When attempting to further form a passage between shelves 2b and 2c from the state in which a passage is formed between shelves 1 and 2a as described above, the opening command switch 12b on shelf 2b is pressed. . When the switch 12b is turned on by operating it,
An open command signal is input to the open command and passage lock circuit 23b, and the left direction command circuit 24b is input from the same circuit 23b.
A left row signal is applied to the right row command circuit 25b, and a right row signal is applied to the right row command circuit 25b. The right row command circuit 25b applies a right row signal to the right row command circuit 25c on the right shelf, and the left row command circuit 24b applies a left row signal to the left row command circuit 24a on the left shelf. The left-hand command circuit 24a of the shelf 2a inputs a left-hand signal to the motor control circuit 28a of that shelf.
Since the shelf 2a is locked in a circuit manner so that it cannot be moved by inputting a lock signal, the shelf 2a does not move. In addition, the motor control circuit 28b of the movable shelf 2b
Also, the left-going signal is input from the left-going command circuit 24b, but since the stop signal is input from the stop limit detection circuit 27b to the motor control circuit 28b due to the convergence of the shelves 2a and 2b, the motor control circuit 28b is It does not move, and the shelf 2b also remains stationary.
On the other hand, the right-going signal from the right-going command circuit 25b of the shelf 2b is input to the motor control circuit 28c of the shelf 2c, and the circuit 28c closes the normal rotation circuit of the drive motor in the motor drive unit 30c, and to the right to form a passage between the shelves 2b and 2c. When this passage width reaches a predetermined width, the passage width regulation switch 3a of the shelf 2b is activated and turned off, and an open command and a lock signal are input to the passage lock circuit 23b, and the shelf 2c is moved to the right side as in the case described above. The running of the shelf 2b and the shelf 2c are stopped and the shelves 2b and 2c are locked so that they cannot be moved. Note that, assuming that the shelf 2c is the outermost shelf and that there is enough transition margin to form passages in two places, when the passages are formed in two places as described above, the stop limit detection circuit 2 of the shelf 2c
7c detects that there is no margin for transition and issues a stop signal, so this stop signal can also stop the motor control circuit 28c and stop the movement of the shelf 2c.

After forming a passage in this way, when attempting to eliminate the passage in order to form a passage at another position or to converge all the shelves, for example, use the passage width regulating switch 3a. After operating a lock release switch such as a push button switch connected in the same way, the user may press the opening command switch of the desired shelf.

All of the circuits described above can use semiconductor logic circuits implemented as ICs. FIG. 6 shows a specific example of the open command and path lock circuit. In FIG. 6, the open command and path lock circuit are connected to input terminals a,
b, c, d and output terminals e, f, and these terminals are connected to the open command and path lock circuit 2 in FIG.
3a corresponds to each input/output terminal indicated by symbols a to f. The other end of the open command switch 12, one end of which is grounded, is connected to the terminal a, and the other end of the passage width regulating switch 3a, one end of which is connected, is connected to the terminal b. The input signal from terminal a is passed through input processing circuit A ₂ and inverter I ₀ to AND gate a ₁ ,
a ₂ , and is further applied to the OR gate O ₁ via the differentiating circuit DIF 1, and to O ₃ , one of _the NOR gates O ₃ and O ₄ that constitute the flip-flop circuit, via the inverter I ₁ . It's becoming like that. The input signal from terminal b is applied to OR gate _O2 via input processing circuit _A1 , and further applied to gate _a2 via inverter _I2 . Each of the above input processing circuits A ₁ and A ₂ is
When the switch on the input side is turned on and the input is grounded, a "L" signal is output, and when the switch on the input side is turned off, a "H" signal is output. . The input signal at input terminal c goes to gate _O1 , and the input signal to terminal d goes to gate O1.
It is supposed to be input to _O2 . The output of the gate O ₁ is applied to the gate O ₂ via the differentiating circuit DIF ₂ , the output of the gate O ₂ is applied to the gate a ₁ , and the output of the gate A ₁ is applied to the gates O ₃ and O ₄ forming the flip-flop circuit. is added to one gate _O4 . The output of the gate _O3 becomes the output of the flip-flop circuit, and is output as a lock signal from the terminal e. Further, the output of gate _O4 is applied to gate _a2 as the Q output of the flip-flop, and the output of gate _a2 is outputted from terminal f as a command signal.

Next, the operation of the circuit shown in FIG. 6 will be explained with reference to FIG. Now, assuming that the open command switch 12 is not operated and is in the OFF state as shown in the figure, the output of the input processing circuit _A2 is "H",
An "H" signal is applied to the gate _O3 constituting the flip-flop circuit via the inverters _I0 and _I1 .
On the other hand, the passage restriction switch remains on, and
Assuming that no signal is applied from terminal d, the output of gates O ₂ and a ₁ is "L", so
The output Q of the flip-flop circuit becomes "H". However, since the "L" signal is input from _I0 to gate _a2 , no command signal is output. next,
When the open command switch 12 is turned on to form a working passage, the "L" output of the input processing circuit A ₂ is inverted twice by the inverters I ₀ and I ₁ and the gate is opened.
Add “L” signal to _O3 . The "L" output of the input processing circuit A ₂ is inverted to "H" by the inverter I ₀ and is applied to the gate a ₂ as a signal A, and
The "L" output of the input processing circuit _A1 is inverted to "H" by the inverter _I2 and input to the gate _a2 .
Further, the gate _a2 outputs an "H" signal as the command signal F when the "H" signal is input from the terminal Q of the flip-flop circuit. As described above, this command signal is applied to the left row command circuit and the right row command circuit as a left row signal and a right row signal.

The movable shelf moves in a predetermined direction by the output of the above command signal F, but when a passage of a predetermined width is formed between the shelves, the passage width regulation switch 3a is activated and turned off, and the input processing circuit A is turned off. ₁ output is “H”
This "H" signal is then applied to gate _a1 via gate _O2 . Since the "H" signal, which is the open command signal A, is input to the other input terminal of the gate _a1 , the output of the gate _a1 becomes "H", and this "H" signal is sent to the gate forming the flip-flop circuit. It is added to _O4 , and the terminal Q of the flip-flop circuit becomes "L" and the terminal becomes "H". Terminal Q
As the output becomes "L", the command signal F becomes "L" and the movement of the shelf is stopped, and the "H" signal of the terminal Q is outputted as the lock signal E from the terminal e, and as described above, , the shelves across the aisle are electrically locked so that they cannot be moved. Such movement stopping and locking operations are similarly performed when a stop signal is input from another shelf. That is, the stop signal input from terminal d is sent to the input processing circuit.
This is because the signal from A ₁ is applied to gate O ₂ as well. Furthermore, the movement stop and lock operations are
The same effect can be achieved by stopping the operation signal C while the shelf is being moved by operating the open command switch 12. That is, when the open command switch is operated, the signal A becomes "H", but the output G of the differentiating circuit _DIF1 is output only for a predetermined short time. Therefore, if the operating signal C, which was initially "H", becomes "L" for some reason, the output signal H of the gate _O1 becomes "H", and is converted into a predetermined differential signal I by the differentiating circuit _DIF2 . , is applied to gate O ₄ forming a flip-flop circuit via gates O ₂ and a ₁ .
As a result, the flip-flop circuit is reversed to stop and lock the mobile shelf as described above.
By stopping and locking the movable shelf in this manner, it becomes possible to form a passage between the other shelves.

A specific example of the left row command circuit and right row command circuit on each shelf is shown in FIG. In Figure 8,
The right row command circuit 250 has input terminals g, h, i, j,
k, and output terminals l, m, n, o, p, and the left row command circuit 240 has input terminals q, rs, t.
and output terminals u and v. Right row command circuit 2
The command signal F is input to the terminals g, j, and q of 50, the signal from the open command switch is input to the terminal h, the right row signal from another shelf is input to the terminal 1, and the signal from the open command switch is input to the terminal k. The right row signal from the adjacent shelf is input. The command signal F from the terminal g is applied to the OR gate _Q5 , and is also output from the terminal l to the adjacent shelf as a right row signal. The open command signal from terminal h is sent to AND gate _a3 via inverter _I4 , the right row signal from terminal l is sent to gates _a3 and _a5 , and the signal F from terminal j is sent to AND gate _a5 , terminal The right row signal from k is applied from the terminal O to the input terminal s of the left row command circuit 240, respectively. The output of the gate _a3 is applied to the gate _O5 , and the output of the gate _O5 is applied to the AND gate _a4 , and is also output from the terminal n to the other movable shelves as a right row signal. The output of gate _a5 is applied to gate _a4 via inverter _I5 , and is also applied to left row command circuit 24 from terminal p.
0 terminal t. The output of gate _a4 is output from terminal m as a right row signal.

Further, the signal F from the terminal q of the left row command circuit 240 is sent to the OR gate O ₆ , the left row signal from the terminal r is sent to the AND gate a ₆ , and the signal from the terminal s is sent to the gate a ₆ via the inverter I ₆ . , the signal from terminal t is applied to AND gate a ₇ via inverter I ₇ , and the output of gate a ₆ is applied to gate O ₆ ,
The output of gate O ₆ is adapted to be applied to gate a ₇ . The output of gate a ₇ is applied to the motor control circuit of that shelf from terminal u as a left-row signal, and the output of gate O ₆ is output from terminal v to other shelves as a left-row signal. It's summery.

In the right-hand command circuit 250, when the command signal F is inputted, a signal of "H" is inputted from the gate _O5 to the gate _{a4, and at the same time, the right-hand row command circuit 250 inputs the "H" signal from the gate O5 to the gate a4} , and also sends the right row to the movable shelf adjacent to the right side from the terminal l. Output a signal. On the other hand, assuming that no right row signal is input to terminal i from another shelf, the output of gate a ₅ becomes "L", and this is inverted to "H" by inverter I ₅ , so gate a ₄ becomes " A signal of "H" is output from the terminal m as a right row drive signal, and the shelf adjacent to the right side is moved rightward. In addition, even if the command signal F for that shelf is not input, if the open command signal for that shelf is not input from terminal h, an "H" signal is input from inverter I ₄ to a ₃ , and at that time When an "H" signal is input from another shelf via terminal i, gate _a3 outputs an "H" signal, and furthermore, the output of gate _a5 is "L" and the input of gate _a4 is As a result, the gate _a4 outputs an "H" signal, which causes the adjacent shelf on the right side to move toward the right. In addition, the gate
The "H" output signal of _O5 is output from terminal n to other shelves as a right row signal, and the other shelves operate in the same manner.

Furthermore, in the left row command circuit 240, when the command signal F is input from the terminal q, an "H" signal is applied to the gate _a7 via the gate _O6 . Gate
Similar to the right row command circuit 250, _a signal is applied to the other input terminal of a7 from gate _a5 via inverter _I7 , so a right row signal is applied to terminal i from another shelf. "H" if not entered
As a result, the gate _a7 receives the command signal F and outputs the left row drive signal from the terminal u on the condition that the right row signal is not input from any other shelf. Move the shelf to the left. In addition, even if the command signal F for that shelf is not input, the left-hand signal from another shelf is input to the terminal r.
Since the gate A6 outputs an "H" signal on the condition that the right row signal from the adjacent shelf is not input from the terminal k at that time, this also causes the gate _O6 to output the "H _" signal. , _a7 , a leftward signal is output from the terminal u, and the shelf is moved to the left. In addition, "H" of gate O ₆
The output signal of is output as a left row signal from the terminal v to the other shelves, and operates in the same manner on the other shelves.

According to the present invention, when the passage width between adjacent shelves widens to a predetermined width, each passage width regulating switch outputs a lock signal indicating that movement of only the adjacent shelves should be stopped. Since it is installed on the shelves, if a passage of a predetermined width is formed in one position, the movement of the shelves across this passage is locked, and other shelves can move freely, so it is possible to form passages in several places at the same time. This allows a plurality of workers to safely take in and out items in different work paths at the same time, thereby increasing work efficiency.

Here, various modified embodiments of the present invention will be listed.

The structure of the passage width detection member can be modified in various ways as shown in FIGS. 9 to 15. First, in the examples shown in FIGS. 9 and 10, there is a telescopic member between adjacent shelves.
5, and a passage of a predetermined width is formed between the shelves so that when the expandable member 15 is extended, the pressure on the regulation switch 3a is released.

In the example shown in FIG. 11, the other end of an arm 16 rotatably pivoted to the top plate of one of the shelves facing each other is loosely fitted into a groove-shaped guide member 17 provided on the top plate of the other shelf. , when a passage of a predetermined width is formed between both shelves, the arm 16 moves along the guide member 17.
The regulation switch 3a is pressed by the end of the switch 3a.

In the example shown in FIGS. 12 and 13, an arm 18 with one end fixed to the top plate of one of the opposing shelves extends above the top plate of the other shelf, and a passage of a predetermined width is provided between the two shelves. is formed, the protrusion 18a at the free end of the arm 18 presses the actuator of the regulation switch 3a.

In the example shown in FIGS. 14 and 15, when the tip 19a of the arm 19 similar to the arm 18 in FIGS. 12 and 13 is cut off diagonally, and a passage of a predetermined width is formed, The actuator of the switch 3a, which had been pressed by the lower surface, is separated from the lower surface and the cut-off portion of the arm 19.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of the external appearance of the movable shelving device according to the present invention, Fig. 2 is a plan view of the same, and Fig. 3 is an enlarged view of an operation panel provided on one shelf constituting the movable shelving device. A front view, FIG. 4 is an enlarged front view of an operation panel provided on another shelf, and FIG. 5 is a block diagram showing an example of an electric circuit used in the present invention.
FIG. 6 is a circuit diagram showing a specific example of the open command and path lock circuit in the above circuit, FIG. 7 is a timing chart for explaining the operation of the same circuit, and FIG. 8 is the right side of the circuit in FIG. 5. FIG. 9 is a circuit diagram showing a specific example of the row command circuit and the left row command circuit; FIG. 9 is a side view showing another example of the passage width detection device used in the present invention;
Fig. 0 is a plan view of the same as above, Fig. 11 is a plan view showing still another example of the passage width detecting device, Fig. 12 is a plan view showing still another example of the passage width detecting device, and Fig. 13 is the same as the above detecting device. A plan view showing different aspects of the fourteenth
The figure is a side view showing still another example of the passage width detection device, and FIG. 15 is a side view showing a different aspect of the same detection device. 9, 12a, 12b, 12c... Open command switch, 3a... Passage width regulation switch, 23, 23
a, 23b, 23c...open command and passage lock circuit, 24a, 24b, 24c...leftward command circuit,
25, 25a, 25b, 25c...Right row command circuit, 26, 26a, 26b, 26c...Abnormal state detection circuit, 28a, 28b, 28c...Motor control circuit, 30a, 30b, 30c...Motor drive section.

Claims (1)

[Scope of Claim for Utility Model Registration] In an electric movable shelving device, the movable shelving device is provided for each movable shelf in such a way that the movable shelf travels by selecting an opening command switch and a passage is formed between specified shelves. A reversible motor for driving shelves and a lock signal provided on each shelf to indicate that only the movement of adjacent shelves should be locked when the passage width between adjacent shelves widens to a predetermined width. A right-hand signal and a left-hand signal are output by the opening command operation of the aisle width regulating switch and the opening command switch provided on each shelf, and a stop signal is produced by the lock signal from the aisle width regulating switch. An open command and aisle lock circuit that outputs an open command and an aisle lock circuit, and a right circuit that is provided on each shelf and inputs a right-going signal from the open command and aisle lock circuit for that shelf and a right-going signal from the left shelf to the right shelf. a row command circuit; a left-hand command circuit that is provided on each shelf and inputs a left-hand signal from an open command and passage lock circuit for that shelf and a left-hand signal from the right shelf to the left shelf; Right-hand signals and left-hand signals provided on each shelf from the shelf's open command and aisle lock circuit, or right-hand and left-hand signals from the right-hand command circuit and left-hand command circuit of the adjacent shelf. and a motor control circuit for reversing the motor in the forward and reverse directions according to the control circuit, and the motor control circuits of the movable shelves adjacent to each other across the formed passage respond to the opening command and the stop signal from the passage lock circuit. Therefore, the shelves adjacent to each other across the passage are locked so that they cannot be moved, and the shelves other than the shelves adjacent to each other across the passage are movable,
An electric movable shelving device characterized by being able to form passages in several locations at the same time.