JPS6346831B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a parking pallet switching method in a parking device.

In recent years, even in self-propelled multi-story parking garages, in order to increase the accommodating efficiency, a unitized mechanical parking device has been installed on each parking floor.

This mechanical parking device basically has a two-level structure, with a plurality of parking pallets in each of the upper and lower levels, and these pallets can be moved vertically and horizontally by operating a switch. It is.

However, with this type of conventional mechanical parking system, empty pallets are located at the upper level, and there are no pallets at the floor level. In some cases, the ability to receive inventory may be impaired. For this reason,
As a measure to prevent accidents, gates have been installed at the entrance of each pallet on the lower level to prevent entry, but this not only complicates the structure, but also requires a gate control device. It had the disadvantage of being difficult to use as a multi-level parking lot.

The present invention has been made in consideration of the above points, and its purpose is to eliminate the need for a gate and its control device, thereby reducing the mechanism by ensuring that empty pallets are always located at the floor level. The object of the present invention is to provide a parking pallet switching method in a parking device that is both simple and easy to operate.

Hereinafter, a parking pallet switching method according to the present invention will be explained with reference to the drawings.

Fig. 1 is a model diagram showing an example in which the method according to the present invention is applied to a parking system in which 1 unit consists of 2 stages of upper and lower parking pallets and 5 parking pallets. It is characterized in that it is controlled as in each example shown in the figure.

This method basically consists of upper pallets 1, 2, 3 that move up and down and lower pallets 4, 5 that move left and right, as shown in FIG. 1a.

That is, in the method according to the present invention, first, as shown in FIG. , 3 are positioned respectively. When a car enters the warehouse on pallet 1 located at the floor level, pallet 1 is first raised vertically to the upper level in the state shown in Fig. 1A, and then pallet 4 is raised horizontally to the left in the figure. The pallet 2 is moved to a predetermined position, and then lowered vertically to the floor level to form the condition shown in FIG. 1A'. In addition, when a car enters the warehouse on pallet 2 in Figure 1B, first raise pallet 2 to the upper level, then move pallet 4 horizontally to the right in the figure, and then move pallet 1 vertically. Either lower the pallet 2 to the floor level and make the condition shown in Figure 9', or raise the pallet 2 to the upper level, move the pallet 5 to the left, and then lower the pallet 3 to the floor level. The state shown in Figure B is made. In addition, when a car enters the garage on pallet 3 in Figure C, first raise that pallet 3 to the upper level, then move pallet 5 to the right, and then The pallet 2 is lowered to the floor level to form the state shown in Figure C'.

Next, in the case of shipping, each pallet is
When leaving the car on pallet 1 in the condition shown in Figure D, first raise pallet 2 to the upper level, then move pallet 4 to a predetermined position on the right (where pallet 2 was located). After that, lower pallet 1 to the floor level and
The condition shown is as follows. Furthermore, since the movement of each pallet in the case of this retrieval is completely opposite to the movement in the case of warehousing, the explanation of each example shown in Fig. Omitted.

FIGS. 2 and 3 are circuit diagrams showing the control sequence for each pallet at the time of loading and unloading as described above, and in these figures, reference numerals 1, 2,
3, 4, and 5 correspond to each parking pallet shown in FIG. These palette groups 1, 2,
Among pallets 3, 4, and 5, pallets 1, 2, and 3 are suspended by a suspension device (not shown);
Reference numeral 5 denotes each motor M installed in a traversing device (not shown) and linked to the suspension device and the traversing device.
1, M2, M3 and M4, M5 respectively, it is possible to perform a predetermined vertical movement or horizontal movement (horizontal direction in the figure).

That is, the input terminals of each of the motors M1 to M5 are connected to the three-phase power supply V via a pair of electromagnetic switches, for example, one of the electromagnetic switches 6a and 6b of the motor M1. When the control current is supplied to 6a, the output of the three-phase power supply V is supplied to the motor M1, which rotates in the direction of arrow A in the figure and raises the pallet 1.
When a control current is supplied to the other electromagnetic switch 6b, the phase is switched and the motor M1 rotates in the direction of arrow B in the figure to lower the pallet 1 located at the upper level. When a control current is supplied to one of the electromagnetic switches 9a and 9b of the motor M4, the motor M4 rotates in the direction of arrow A in the figure, moves the pallet 4 to the left, and When a control current is supplied to the switch 9b, the phase is switched and the motor M4 rotates in the direction of arrow B, thereby moving the pallet 4 to the right.

On the other hand, when each of these pallets 1, 2, 3, and 4, 5 moves up and down or left and right, a large number of An automatic restoring limit switch is provided. Of these limit switches, 11,1
2 and 13 detect the upper level of pallets 1, 2, and 3, 14, 15, and 16 detect the floor level of pallets 1, 2, and 3, and 17, 18, and 2
0 and 21 detect the horizontal movement range of pallets 4 and 5 to open and close each switch circuit, and selector switch 19 selects either pallet 4 or 5, thereby controlling the movement of each pallet as described above. control. In addition, S1, S
2, S3, S4, S5 and S1a, S2a, S
3a, S4a, and S5a are changeover switches disposed on the front panel of the parking device, for example, as shown in FIG. Operated when leaving the warehouse. Each of these changeover switches is configured such that when any one switch is turned on, all the other switches are turned off, and two switches cannot be turned on at the same time. Further, each of these changeover switches is designed to correspond to the above-mentioned palettes 1 to 5, respectively. Note that the output (100V) of an AC power supply Z is supplied to each of the terminals X and Y.

By the way, on the upper level, as shown in FIG. 3, the weights of the pallets 1, 2, 3,
In other words, the automatic restoring type limit switch 3 detects whether or not a car is parked in pallets 1, 2, and 3.
1, 32, 33, and 34 are provided, respectively. For example, when the pallet 4 is stocked and the pallet 2 at the upper level is empty, when the changeover switch S4 corresponding to the pallet 4 is turned on, the second A control current is supplied to terminals 1a and 1b of a changeover switch S1 in the figure (also shown in FIG. 3). Note that the changeover switches S4a and S5a shown in FIG. 3 are dummy switches here; however, the changeover switches S4a and S5a
is used as a changeover switch for a time recorder, etc. for recording parking time, which will be described later.

Next, the operation of the pallet during loading and unloading will be explained based on a circuit diagram showing this control sequence.

First, at the time of parking, if each pallet 1 to 5 is in the state shown by the solid line in FIG. do. When the changeover switch S1 is turned on, a control current is sequentially supplied from the power supply Z to each predetermined electromagnetic switch through the path shown by the thick line. That is, the control current is first supplied from the power supply Z to the electromagnetic switch 6a of the motor M1, and thereby the output of the three-phase power supply V is supplied to the motor M1.
As a result, the motor M1 rotates in the direction of arrow A and the pallet 1 is raised. When pallet 1 reaches the upper level (the position indicated by the chain line in the figure),
The pallet 1 presses the actuator 11a of the limit switch 11 at the upper level to the position shown by the chain line in the figure, thereby opening the terminals 11b and closing the terminals 11c. Therefore, the motor M1 stops rotating and the pallet 1 is positioned at the upper level. At this time, since the terminals 11c are closed, a control current is supplied from the power supply Z to the electromagnetic switch 9a of the motor M4 through the terminals 17c of the limit switch 17, which are in the closed state. The pallet 4 rotates in the direction of arrow A and moves to the left in the figure. When the pallet 4 reaches a predetermined position on the left (this is the first position of the pallet 1, but there is a step in the figure for convenience of explanation), the pallet 4 moves the actuator 17a of the limit switch 17 to the position shown by the chain line. This causes the terminals 17c to be in an open state and the outputs 17b to be in a closed state. Therefore, the motor M4 stops rotating, and the pallet 4 is positioned at a predetermined position on the left at the floor level. At this time, since the terminals 17b of the limit switch 17 are closed, the control current is supplied from the power supply Z between the terminals 21d of the limit switch 21 and the terminals 1 of the limit switch 15, which are in the closed state.
5b to the electromagnetic switch 7b of the motor M2, which rotates the motor M2 in the direction of arrow B and lowers the pallet 2. When the pallet 2 reaches the floor level, the pallet 2 presses the actuator 15a of the limit switch 15 to the position shown by the chain line, thereby opening the terminals 15b. The motor M2 therefore stops rotating, and the pallet 2 is positioned at a predetermined position (the first position of the pallet 4) at the floor level. In this way, palette 1, palette 4,
Pallet 2 is sequentially moved in a predetermined manner, and as a result, pallet 4, pallet 2, and pallet 5 are respectively located at the floor level from the left in the figure. At this time, pallets 1 and 3 are located at the upper level, respectively. The operation of each of these pallets is shown in Figure 1 from A to I'.
This corresponds to the operation of

Next, when each pallet is in the state shown in FIG. 6, a car is parked on pallet 2 and the selector switch S2 is turned on. When the changeover switch S2 is turned on, a control current is first supplied from the power supply Z to the electromagnetic switch 7a of the motor M2, thereby causing the motor M2 to rotate in the direction of arrow A and the pallet 2 to rise. When the pallet 2 reaches the upper level, the pallet 2 pushes the actuator 12a of the limit switch 12 at the upper level to the position shown by the chain line, and the terminals 12b are opened and the terminals 12c
The gap is closed. Therefore, the motor M2 stops rotating and the pallet 2 is positioned at the upper level. Also, at this time, the limit switch 12
Since the terminals 12c of the switch 19 are in the closed state, the control current from the power supply Z is switched by the pallet 4 to the terminal 19 of the selector switch 19 which is in the closed state.
B, between the terminals 18d of the limit switch 18, and between the terminals 20c of the limit switch 20 to the electromagnetic switch 9b of the motor M4, which causes the motor M4 to rotate in the direction of the arrow B and the pallet 4 to the right (as shown in the figure). , towards the center position at floor level). When the pallet 4 reaches its predetermined position, the pallet 4 causes the changeover switch 19 to be activated.
and actuators 19a, 2 of limit switch 20
0a are pressed to the positions indicated by the chain lines, thereby opening the terminals 19b and 20c, and closing the terminals 19c and 20d. Motor M4 therefore stops rotating, and pallet 4 is positioned at a predetermined central position at floor level. At this time, since the terminals 20d of the limit switch 20 are closed, the control current is applied from the power supply Z to the terminals 20d and 14 of the limit switch 14, which is in the closed state.
The pallet 1 is supplied to the electromagnetic switch 6b of the motor M1 through the space B, whereby the motor M1 rotates in the direction of arrow B and the pallet 1 is lowered. When the pallet 1 reaches the floor level, the pallet 1 presses the actuator 14a of the limit switch 14 to the position shown by the chain line, thereby opening the terminals 14b. Therefore, the rotation of motor M1 stops,
Pallet 1 is positioned at a predetermined position on the floor level (the position before pallet 4 is moved).
In this way, pallets 2, 4, and 1 are sequentially moved in a predetermined manner, and as a result, pallets 1, 4, and 5 are located at the floor level from the left in the figure, respectively. At this time, pallets 2 and 3 are located at the upper level. The operation of each of these pallets corresponds to the operation from B to B' in FIG.

Further, when each pallet is in the state shown in FIG. 7 and the actuator 19a of the changeover switch 19 is in the position shown by the solid line in the figure, the vehicle is parked on the pallet 2 and the changeover switch S2 is turned on. , the electromagnetic switch 7a of the motor M2 is first connected to the power supply Z.
A control current is supplied to the motor M2, which causes the motor M2 to rotate in the direction of the arrow A and the pallet 2 to rise. When pallet 2 reaches the upper level, it will cause the limit switch 12 at the upper level to be
The actuator 12a is pressed to the position shown by the chain line, the terminals 12b are in an open state, and the terminals 12c are in a closed state. Therefore, the motor M2 stops rotating and the pallet 2 is positioned at the upper level.
At this time, since the terminals 12c are closed, the control current is applied from the power supply Z to the closed terminals 19c of the changeover switch 19, between the terminals 20b of the limit switch 20, and to the limit switch 18.
is supplied to the electromagnetic switch 10a of the motor M5 through the terminal 18c of the motor M5, thereby rotating the motor M5 in the direction of arrow A and moving the pallet 5 to the left (toward the center position at the floor level in the figure). . When the pallet 5 reaches its predetermined position, the pallet 5 presses the actuators 18a and 19a of the limit switch 18 and the changeover switch 19 to the positions shown by the chain lines, and thereby the terminal 18c
The terminals 18b and 19c are open, and the terminals 18b and 19b are closed. Motor M5 therefore stops rotating, and pallet 5 is positioned at a predetermined central position at floor level. Also, at this time, the limit switch 1
Since the terminals 18b and 19b of the limit switch 16 and the limit switch 19 are closed, the control current from the power supply Z is passed between the terminals 18b and the terminal 16b of the limit switch 16, which is in the closed state, to generate the electromagnetic current of the motor M3. is supplied to the switch 8b, which causes the motor M3 to rotate in the direction of arrow B, and the pallet 3
descends. When pallet 3 reaches floor level, it causes limit switch 1
The actuator 16a of No. 6 is pressed to the position shown by the chain line,
This brings the terminals 16b into an open state. Therefore, the motor M3 stops rotating, and the pallet 3 is positioned at a predetermined position at the floor level (the position before the pallet 3 was moved). In this way, pallets 2, 5, and 3 are sequentially moved in a predetermined manner, and as a result, pallets 4, 5, and 3 are located at the floor level from the left in the figure, respectively.
At this time, pallets 1 and 2 are located at the upper level. The operation of each of these pallets corresponds to the operation shown in FIG.

Next, when each pallet is in the state shown in FIG. 8, a car is parked on the pallet 3 and the changeover switch S3 is turned on. When the changeover switch S3 is turned on, the control current is first supplied from the power supply Z to the electromagnetic switch 8a of the motor M3 through the terminals 13b of the limit switch 13, which is in the closed state, and this causes the motor M3 to move in the direction of arrow A. It rotates and the pallet 3 rises. When the pallet 3 reaches the upper level, the pallet 3 presses the actuator 13a of the limit switch 13 to the position shown by the chain line, and the terminals 13b are opened, and the terminals 13
The space between c is closed. Motor M3 therefore stops rotating, and pallet 3 is positioned at the upper level. At this time, since the terminals 13c are closed, the control current is supplied from the power supply Z to the electromagnetic switch 10b of the motor M5 through the terminals 21b of the limit switch 21, which is in the closed state. rotates in the direction of arrow B, and the pallet 5 moves to the right. When the pallet 5 reaches its predetermined position (the position indicated by the chain line in the figure), the pallet 5 activates the actuator 2 of the limit switch 21.
1a is pressed to the position shown by the chain line, thereby bringing the terminals 21b into an open state and the terminals 21d into a closed state. Motor M5 therefore stops rotating and pallet 5 is positioned at a predetermined position at floor level. At this time, since the terminals 21d of the limit switch 21 are closed, the control current is supplied from the power supply Z between the terminals 17b of the limit switch 17 in the closed state, and between the terminals 21d of the limit switch 21, which is in the closed state.
1d and terminal 15b of limit switch 15
The pallet 2 is supplied to the electromagnetic switch 7b of the motor M2 through the gap, whereby the motor M2 rotates in the direction of arrow B and the pallet 2 is lowered. When the pallet 2 reaches the floor level, the pallet 2 pushes the actuator 15a of the limit switch 15 to the position shown by the chain line, thereby causing the limit switch 1 to
The terminals 15b of 5 are in an open state. Motor M2 therefore stops rotating, and pallet 2 is positioned at a predetermined central position at floor level. In this way, pallets 3, 5, and 2 are sequentially moved in a predetermined manner, and as a result, on the floor level, from the left in the figure, pallets 4, 5, and 2 are moved.
Pallet 2 and pallet 5 are now positioned respectively. At this time, pallets 1 and 3 are located at the upper level. The operation of each of these pallets corresponds to the operation from c to c' in FIG.

Next, the operation of each pallet when leaving the warehouse will be explained.

First, when pallets 1 to 5 are in the state shown in FIG. 9 and the car on pallet 1 is to be taken out of the garage, the selector switch S1a is turned on. When the changeover switch S1a is turned on, the control current is transferred from the power supply Z to the terminal 12b of the limit switch 12.
The pallet 2 is supplied to the electromagnetic switch 7a of the motor M2 through the gap, thereby causing the motor M2 to rotate in the direction of arrow A, and the pallet 2 located at the floor level rises toward the upper level. When the pallet 2 reaches the upper level, the pallet 2 presses the actuator 12a of the limit switch 12 to the position shown by the chain line, thereby opening the terminals 12b of the limit switch 12 and closing the terminals 12c. . Therefore, the rotation of motor M2 stops,
Pallet 2 is positioned at a predetermined position on the upper level. Also, at this time, the limit switch 12
Since the terminals 12c of the limit switch 2 are closed, the control current from the power supply Z is applied to the limit switch 2, which is in the closed state.
The electric current is supplied to the electromagnetic switch 9b of the motor M4 through the terminals 20c of the motor M4, thereby causing the motor M4 to rotate in the direction of arrow B and the pallet 4 to move to the right (toward the center position). When the pallet 4 reaches its predetermined position, the pallet 4 presses the actuator 20a of the limit switch 20 to the position shown by the chain line (the actuator 18a of the limit switch 18 has already returned to the position shown by the solid line). The terminals 20c of the limit switch 20 are in an open state, and the terminals 20d are in a closed state. Motor M4 therefore stops rotating and pallet 4 is positioned at a predetermined central position at the floor level. Also, at this time, the limit switch 2
Since the terminal 20d of the limit switch 14 is closed, the control current is transferred from the power supply Z to the terminal 1 of the limit switch 14.
4b to the electromagnetic switch 6b of the motor M1, which causes the motor M1 to rotate in the direction of arrow B and the pallet 1 on the upper level to descend toward the floor level. When the pallet 1 reaches the floor level, the pallet 1 presses the actuator 14a of the limit switch 14 to the position shown by the chain line, opening the terminals 14b. The motor M1 therefore stops rotating, and the pallet 1 is positioned at a predetermined position on the left at the floor level. Once pallet 1 is positioned at floor level, the vehicle on pallet 1 can be released. At this time, pallets 1, 4, and 5 are located on the floor level from the left, and pallets 2 and 3 are located on the upper level, respectively. The operation of each of these pallets corresponds to the operation from d to d' in FIG.

Next, when the pallets 1 to 5 are in the state shown in FIG. 10 and the car on pallet 2 is to be taken out of the garage, the selector switch S2a is turned on. When the changeover switch S2a is turned on, the control current is transferred from the power supply Z to the terminal 17 of the limit switch 17.
d and between the terminals 11b of the limit switch 11 to the electromagnetic switch 6a of the motor M1, which causes the motor M1 to rotate in the direction of arrow A and the pallet 1 located at the floor level to move upward toward the upper level. When the pallet 1 reaches the upper level, the pallet 1 presses the actuator 11a of the limit switch 11 to the position shown by the chain line, thereby opening the terminals 11b of the limit switch 11 and closing the terminals 11c. . Therefore, the rotation of motor M1 stops,
Pallet 1 is positioned at the upper level. Also, at this time, the terminal 11c of the limit switch 11
Since the terminal 17 of the limit switch 17, which is in the closed state, the control current from the power supply Z is in the closed state.
c to the electromagnetic switch 9a of the motor M4, which causes the motor M4 to rotate in the direction of the arrow A and release the pallet 4 at the center of the floor level.
moves to the left. When the pallet 4 reaches a predetermined position on the left side, the pallet 4 presses the actuator 17a of the limit switch 17 to the position shown by the chain line, thereby opening the terminals 17c and 17d of the limit switch 17.
7b is in a closed state. Motor M4 therefore stops rotating, and pallet 4 is positioned at a predetermined position on the left at the floor level. Also, at this time, the terminal 17 of the limit switch 17
Since the terminal 2 of the limit switch 21 in the closed state is connected to the terminal 2 of the limit switch 21 in the closed state,
1d and terminal 15b of limit switch 15
The electromagnetic switch 7b of the motor M2 passes through the
As a result, the motor M2 rotates in the direction of arrow B, and the pallet 2 located at the upper level descends toward the floor level. When the pallet 2 reaches the floor level, the pallet 2 presses the actuator 15a of the limit switch 15 to the position shown by the chain line, thereby opening the terminals 15b of the limit switch 15. Motor M2 therefore stops rotating, and pallet 2 is positioned at a predetermined central position at floor level. Once the pallet 2 is positioned at floor level, the cars on the pallet 2 can be taken out of the garage. At this time, pallets 4, 2, and 5 are located on the floor level from the left, and pallets 1 and 3 are located on the upper level, respectively. The operation of each of these pallets corresponds to the operation from F to F' in FIG.

Next, when each pallet 1 to 5 is in the state shown in FIG. 11 and the car on pallet 3 is to be taken out of the garage, the changeover switch S3a is turned on. When the changeover switch S3a is turned on, the control current is transferred from the power supply Z to the limit switch 1 in the closed state.
The pallet 2 is supplied to the electromagnetic switch 7a of the motor M2 through the terminals 12b of the pallet 2, thereby causing the motor M2 to rotate in the direction of arrow A, and the pallet 2 located at the floor level to move upward toward the upper level. Palette 2
When the limit switch 12 reaches the upper level, the pallet 2 presses the actuator 12a of the limit switch 12 to the position shown by the chain line, thereby opening the terminals 12b of the limit switch 12 and opening the terminal 1.
2c becomes a closed state. Motor M2 therefore stops rotating, and pallet 2 is positioned at the upper level. Also, at this time, the limit switch 1
Since the terminal 12c of the limit switch 18 is closed, the control current is transferred from the power supply Z to the terminal 1 of the limit switch 18.
8c to the electromagnetic switch 10a of the motor M5, which causes the motor M5 to rotate in the direction of arrow A and move the pallet 5 located on the right side of the floor level toward the center position. When the pallet 5 reaches a predetermined center position, the pallet 5 pushes the actuator 18a of the limit switch 18 to the position shown by the chain line (at this time, the actuators 19a, 2 of the changeover switch 19 and limit switch 20
0a is also pressed at the same time), thereby the terminals 18c of the limit switch 18 are opened, and the terminals 18b are closed. Motor M5 therefore stops rotating, and pallet 5 is positioned at a predetermined central position at floor level. Also, at this time, since the terminals 18b of the limit switch 18 are closed, the control current is applied from the power supply Z to the limit switch 16 in the closed state.
is supplied to the electromagnetic switch 8b of the motor M3 through the terminals 16b of the
Palette 3 rotates in the direction and is located at the upper level
descends to the floor level. When the pallet 3 reaches the floor level, the pallet 3 presses the actuator 16a of the limit switch 16 to the position shown by the chain line, thereby opening the terminals 16b of the limit switch 16. Therefore, the rotation of the motor M3 is stopped and the pallet 3 is positioned at a predetermined position on the right side at the floor level. Once the pallet 3 is positioned at floor level, the cars on the pallet 3 can be taken out of the garage. At this time, from the left, pallets 4, 5, and 3 are located on the floor level, and pallets 1 and 2 are located on the upper level, respectively. The operation of each of these pallets corresponds to the operation from to to to' in FIG.

By the way, the operation of each pallet during loading and unloading as explained above is basically for the three upper parking pallets 1, which can only move up and down, respectively.
This is a description of the operations of the two lower parking pallets 4 and 5 when entering and leaving the garage, but has not yet described the operations of the two lower parking pallets 4 and 5 when entering and leaving the garage. Therefore, below is this lower row 2
The operation of the parking pallets 4 and 5 when entering and leaving the parking lot will be explained.Since these pallets 4 and 5 are always located at the lower level, that is, at the floor level, the driver cannot move the parking pallets 4 or 5 to either of the pallets 4 or 5. You can also freely enter and exit the warehouse.

However, as shown in FIG. 12A, for example, when the pallet 4 is parked, other pallets 1 and 5 located at the floor level are also stocked with cars, and on the other hand,
Of the pallets 2 and 3 located at the upper level, it is also assumed that, for example, pallet 2 is empty. Therefore, in such a case, if the car is simply stored in the pallet 4, the empty pallet will not always be located at the floor level even though there is an empty pallet, and the subsequent user will be unable to park the car. It will no longer be possible to stock the item.

The position of each pallet at this time is shown by the solid line in Fig. 3. In this case, when a car is stored in pallet 4 and pallet 2 is empty, the switch for storing that pallet 4 is pressed. Turn on switch S4. When the changeover switch S4 is turned on, the control current is supplied from the power supply Z to a predetermined circuit through the path indicated by the thick line in FIG. That is, from the power supply Z to the changeover switch S4
The control current supplied to the terminals 4a and 4b of the limit switch 20 is applied between the terminals 20e and 20f of the limit switch 20, and between the terminals 32b and 32c of the limit switch 32.
When the terminals 20e, 20f, and 32 are closed (because the pallet 2 is empty, the terminals 32b and 32c are closed).
Pass through between b and 32c and switch S
1 terminals 1a and 1b. When the control current is supplied to the terminals 1a and 1b of the changeover switch S1 in this way, the result is the same as when the changeover switch S1 is turned on. The operation will be exactly the same. That is, to explain this with reference to FIGS. 3 and 5, first pallet 1 rises to the upper level, then pallet 4
moves to the left and pallet 2 further descends to floor level. Therefore, an empty pallet 2 is located at the floor level. The operation of each pallet at this time is shown in Figure 1 I →
This corresponds to the operation in A'.

For example, as shown in Fig. 12 (b), when a vehicle enters pallet 4, other pallets 2 and 5 located at the floor level are also stocked, while pallets 1 and 5 located at the upper level are also stocked. Out of 3,
It is also assumed that Palette 1 is empty.

The position of each pallet at this time is shown by the solid line in Fig. 13. In this case, in other words, when the car is stored in pallet 4 and pallet 1 is empty, the switch for storing pallet 4 is pressed as described above. Turn on the changeover switch S4. Changeover switch S
4 is turned on, the control current supplied from the power supply Z to the terminals 4a and 4b of the changeover switch S4 is applied between the terminals 17e and 17 of the limit switch 17.
f and the terminal 31b of the limit switch 31
When terminals 17e and 31c are closed (because pallet 1 is empty, terminals 31b and 31c are closed), the terminals 17e and 17f and terminals 31b and 31c are closed. The signal is supplied to terminals 2a and 2b of the selector switch S2.
When the control current is supplied to the terminals 2a and 2b of the changeover switch S2 in this way, the result is the same as when the changeover switch S2 is turned on.
Each pallet operates in exactly the same manner as described above, that is, as shown in FIG. That is, to explain this with reference to FIGS. 13 and 6, first pallet 2 rises to the upper level, then pallet 4 moves to the right, and then pallet 1
descends to floor level. Therefore, an empty pallet 1 is located at the floor level. The operation of each pallet at this time corresponds to the operation from B to B' in FIG.

For example, when the pallet 5 is parked as shown in FIG. It is also assumed that pallet 3 out of 3 is empty.

The position of each pallet at this time is shown by solid lines in FIG. 14, and in this case, the changeover switch S5, which is the switch for storing the pallet 5, is turned on. When the changeover switch S5 is turned on, the power supply Z connects terminals 5a and 5b of the changeover switch S5.
The control current supplied to the limit switch 21
When the terminals 21e and 21f of the switch S2 and between the terminals 34b and 34c of the limit switch 34 are in a closed state, the terminals 2a and 2b of the selector switch S2 pass between the terminals 21e and 21f and between the terminals 34b and 34c, respectively. supplied to When the control current is thus supplied to the terminals 2a and 2b of the selector switch S2, each pallet in this case performs an operation exactly the same as that shown in FIG. 7.
That is, to explain this with reference to FIGS. 14 and 7, pallet 2 is first raised to the upper level, then pallet 5 is moved to the left, and then pallet 3 is lowered to the floor level. Therefore, an empty pallet 3 is located at the floor level. The operation of each pallet at this time corresponds to the operation shown in FIG.

For example, as shown in FIG. 12D, when the pallet 5 is stocked, other pallets 4 and 3 located at the floor level are also stocked with cars, while the pallets 1 and 3 located at the upper level are stocked. It is also assumed that pallet 2 of 2 is empty.

The position of each pallet at this time is shown by a solid line in FIG. 15, and in this case, the changeover switch S5, which is the switch for storing the pallet 5, is turned on. When the selector switch S5 is turned on,
Terminals 5a, 5 of the switch S5 from the power supply Z
The control current supplied to limit switch 1
When the terminals 18e and 18f of the switch S8 and between the terminals 33b and 33c of the limit switch 33 are in a closed state, the terminals 3a and 33c of the selector switch S3 are connected through the terminals 18e and 18f and between the terminals 33b and 33c, respectively. 3b. When the control current is supplied to the terminals 3a and 3b of the changeover switch S3 in this manner, each pallet performs an operation exactly the same as that shown in FIG. 8. That is, to explain this with reference to FIGS. 15 and 8, first pallet 3 rises to the upper level, then pallet 5 moves to the right, and then pallet 2
descends to floor level. Therefore, an empty pallet 2 is located at the floor level. The operation of each palette at this time is the first
This corresponds to Figure C→C'.

In addition, in this case, the lower two pallets 4 and 5 are to be unloaded.
Since there will be an empty pallet no matter which one of the five pallets is taken out of the warehouse, it is naturally unnecessary to control each pallet by operating the switches as described above. Therefore, these two lower pallets 4 and 5
A changeover switch S4a, which is a switch for exiting the warehouse,
S5a serves as a dummy switch here.

Thus, according to the method of the present invention, empty pallets are always located at the floor level, as can be understood from the operations of each pallet described above.

By the way, since empty pallets are always located at the floor level, users can freely choose the garage (pallet) in which they want to park, without having to specify a garage number at the entrance of the parking lot as in conventional multi-storey parking lots. is also possible. Therefore, although not specifically explained in the above embodiment, for example, a time recorder for recording parking time is installed near the aforementioned changeover switch, and is electrically connected to operate in conjunction with the changeover switch. Alternatively, when the user operates a predetermined switch, the time of entry or exit may be recorded on a time card or the like.

By doing this, you can not only record your time card and operate the parking pallet at the same time, but also save time because you have to receive your time card at the entrance of the parking lot and receive the designation of the garage number where you should park your car. This can effectively prevent long traffic jams at parking lot entrances.

In addition, in the above embodiment, an example was shown in which the method according to the present invention was applied to a parking system having two stages, upper and lower, and five parking pallets as one unit. As shown in FIG. 16, it can be incorporated into a flat parking lot, and the parking pallets can be controlled as shown in the previous embodiment to save road space.

Furthermore, if the method according to the present invention is applied, contrary to the previous embodiment, three parking pallets can be placed on the upper tier.
To easily configure a parking system in which a parking device has two parking pallets each in the lower tier, and the upper tier is at the floor level (for example, above ground) and the lower tier is below the floor level (for example, underground). is possible.

As detailed above, in the present invention, the empty pallet is always located at the floor level, so there is no need to provide an extra gate or the like as in the conventional parking system, and the structure is accordingly reduced. It has the advantage of being simple and of course not requiring a gate control device. Another advantage of a self-propelled multi-storey parking lot is the convenience of being able to freely enter the parking lot whenever there is an empty space. In particular, according to the present invention, three parking pallets are positioned at the lower level at the floor level, and then two parking pallets that can move up and down and one parking pallet that can move back and forth are linked to each other. By using a method of moving the parking pallets one step at a time, the three parking pallets are always located at the lower floor level when entering and exiting the warehouse, so there is no space on the lower floor level where there are no parking pallets. In other words, there will always be empty parking pallets and parking pallets that have been parked at three floor levels, and this physical fact will determine whether or not parking is allowed for those who wish to park. will inevitably and definitively inform you. As a result, not only does it become unnecessary to install a gate in front of the parking device to inform whether or not parking is possible, but also
Since the gate control device can also be made unnecessary, the parking device mechanism can be simplified. In particular, the elimination of the need for gates and their control devices means that parking systems each consisting of five parking pallets are generally installed in large numbers along the roadway, and each parking system requires a gate. This is an extremely important effect when considering the points provided.

[Brief explanation of drawings]

Figures 1 to 15 show an embodiment of the present invention. Figure 1 is a model diagram for explaining the parking pallet switching method according to the present invention, and Figures 2 and 3 are model diagrams of the present invention. A circuit diagram showing the control sequence of the invention, Fig. 4, an explanatory diagram of the arrangement of the changeover switch, Fig. 5,
Figures 6, 7, 8, 9, 10, 11, 13, 14, and 15 are explanatory diagrams of the operation of each parking pallet, and Figure 12 is an illustration of the operation of each parking pallet. Similar to the figure, FIG. 16 is a model diagram for explaining the parking pallet switching method, and FIG. 16 is a model diagram showing another embodiment of the present invention in plan view. 1, 2, 3, 4, 5...Parking pallet, 6a,
6b, 7a, 7b, 8a, 8b, 9a, 9b, 1
0a, 10b...Electromagnetic switch, 11, 12, 1
3, 14, 15, 16, 17, 18, 20, 21
...Limit switch, 11a, 12a, 13
a, 14a, 15a, 16a, 17a, 18a,
19a, 20a, 21a... actuator, 11b, 1
1c, 12b, 12c, 13b, 13c, 14
b, 15b, 16b, 17b, 17c, 17d,
17e, 17f, 18b, 18c, 18d, 18
e, 18f, 19b, 19c, 20b, 20c,
20d, 20e, 20f, 21b, 21c, 21
d, 21e, 21f... terminal, M1, M2, M
3, M4, M5...Motor, V...3-phase power supply,
X, Y...Input terminal, Z...Power supply, S1, S2,
S3, S4, S5, S1a, S2a, S3a, S
4a, S5a...Selector switch, 1a, 1b, 2
a, 2b, 3a, 3b, 4a, 4b, 5a, 5b
...Terminal, 19...Selector switch, 31, 32,
33, 34...Limit switch, 31b, 31
c, 32b, 32c, 33b, 33c, 34b,
34c...Terminal.

Claims (1)

[Claims] 1 There are three parking pallets in the upper tier and two parking pallets in the lower tier, and the three upper tier parking pallets each move up and down based on a suspension system with a control circuit that includes a changeover switch for operation corresponding to each parking pallet. In a parking device in which the two lower parking pallets are configured to be able to reciprocate from side to side, the lower parking pallet of the three upper parking pallets is lowered. Three parking pallets are placed in the lower tier in advance, and when the vehicle enters one of the lower parking pallets or exits from one of the three upper parking pallets that can be moved up and down. Of the three parking pallets that can be moved up and down, there is a process in which one of the two parking pallets is moved up and the other is moved down, including one parking pallet that corresponds to loading or unloading. By performing a series of steps of moving one of the two reciprocally movable lower parking pallets to either the left or right during the vertical movement of the parking pallet, the lower parking pallet can be moved when entering and exiting the garage. 1. A parking pallet switching method in a parking device, characterized in that each parking pallet is controlled so that three parking pallets are always positioned.