JPH0229146B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a parking device that lifts and lowers a vehicle on a support base in order to park the vehicle in multiple stages.

Conventionally, as the above-mentioned parking device, there has been one as shown in FIG. This is done by arranging a large number of columns 1, 1... in parallel at predetermined intervals, and these columns 1, 1...
A support stand 3 on which a vehicle 2 is placed is provided between the two support stands 3, and these support stands 3 are raised and lowered by a motor 4. In addition, the motor 4 on the column 1 on the right side of the figure
raises and lowers the support stand 3 in the center, and a motor 4 on the column 1 on the left side in the figure raises and lowers the support stand 3 on the left side. 5 is a limit switch for lower limit detection,
This is for stopping the motor 4 when the support base 3 has descended to the lower limit position. Reference numeral 6 denotes a limit switch for detecting an upper limit, which is used to stop the motor 4 when the support base 3 rises to the upper limit position. 7 is a safety limit switch, which is used when the support base 3 rises beyond the limit switch 6 for detecting the upper limit, or when the vehicle 2 is placed on the support base 3 biased to the right side and is likely to come into contact with the motor 4 when rising. This is for stopping the motor 4.

Such a parking device is equipped with a control device as shown in FIG. This control device is provided between a primary power source (not shown) and each motor 4 . and 1
It consists of an operation switch section 9 and an elevation switching contact drive circuit 10 connected in series between two lines of a secondary power source.
In this control device, when lowering the elevated support platform 3 as shown in FIG. 1, for example, the lowering switch 11 of the operating switch section 9 is closed, and the starting switch 12 is also closed. As a result, the relay 14 is connected via the relay contact 13 in the lifting switching contact drive circuit 10 and the lower limit detection limit switch 5.
A current flows, the lowering contacts 15, 15, 15 in the lifting switching contact section 8 are closed, and the motor 4 is energized. As a result, the motor 4 is driven and the support base 3 is
begins to descend. Eventually, the support stand 3 comes into contact with the lower limit detection limit switch 5 and opens it. As a result, the power supply to the relay 14 is stopped, the lowering contacts 15, 15, 15 are opened, and the motor 4 is stopped. Thereafter, the start switch 12 is opened, and the lower switch 11 is opened. When raising the support base 3, the raising switch 16 is closed, and the starting switch 12 is also closed. As a result, the relay contact 17 in the lifting switching contact drive circuit 10, the upper limit detection limit switch 6, and the safety limit switch 7
The relay 18 is energized via the rising contact 1
9, 19, and 19 are closed, the motor 4 rotates in the opposite direction from when it is lowered, and the support base 3 is raised. Eventually, the support stand 3 comes into contact with the upper limit detection limit switch 6 and opens it. As a result, the relay 18 is de-energized, the lifting contacts 19, 19, 19 are opened, and the motor 4 is stopped. Thereafter, the start switch 12 is opened, and the lift switch 16 is opened. Note that when the relay 14 operates, the relay contact 17 is opened, and when the relay 18 operates, the relay contact 13 is opened.
will be held. This is to ensure safety. In addition, a lower switch 11 and a higher switch 16
and start switch 12 are 1 as shown in FIG.
It is housed in a box that does not interfere with the entry and exit of the car, and is attached to a support post 1, for example. When the knob 20 is moved to the left, the drop switch 11 is closed, and when the knob 20 is moved to the center, the empty switch 21 is closed. When the knob 20 is turned to the right, the lift switch 16 is closed.

In this way, in this control device, each motor 4 is connected in parallel to the primary power source. Therefore, the primary power source requires a capacity corresponding to the number of motors. However, the capacity of the primary power source is determined for each location where the parking device is installed, regardless of the number of motors, that is, the number of parking devices, and if the capacity of the primary power source is small, the number of parking devices installed will be limited. There must be. Conversely, when many parking devices are installed, the capacity of the primary power source must be increased.

This invention solves the above problem, and focuses on the fact that when multiple parking devices are installed, it is almost impossible to drive many parking devices at the same time. A technical problem is to increase the number of installed parking devices without increasing the capacity of the primary power source by controlling the number of parking devices to be driven only according to the capacity of the primary power source.

The technical means for achieving this technical problem is to divide a plurality of parking devices into a plurality of parking devices, each group having a number of parking devices equal to or less than the number of drivable parking devices determined according to the capacity of the primary power source, Each group has a control section provided between the power source and a plurality of motors for lifting and lowering the support platforms of the parking devices constituting one group, and these control sections control the connection between the motor and the power source. A series circuit consisting of a lifting switching contact section provided between the lifting and lowering switching contacts, a drive circuit of the lifting switching contact section, a normally closed contact, and an operating switch section for energizing the driving circuit, which operates when the driving circuit is energized. The contact drive circuit is characterized in that the contact drive circuit opens the normally closed contacts of the other sets of control units when activated.

According to this technical means, when the operation switch part of one parking device in a certain group is operated in order to park a vehicle, the drive circuit of that parking device is energized, and the parking device is activated accordingly. The lifting switching contact section switches, and the support platform lifting motor rotates in a predetermined direction. At this time, since the drive circuit of the parking device is energized, the contact drive circuit of the parking device opens the normally closed contacts of the control units of the parking devices of groups other than the group to which the parking device belongs. Therefore, only parking devices in the same group as the currently operating parking device can be driven. In other words, all parking devices are divided into multiple groups, with each parking device having the same number or less as the number of driveable parking devices, which is determined according to the capacity of the primary power source.As a whole, the maximum number of parking devices in one group can be Only devices will be driven at the same time. Therefore, the required number of parking devices can be installed by simply increasing or decreasing the number of parking devices without exceeding the preset capacity of the primary power source. Since a large number of parking devices are usually not driven at the same time, there is virtually no problem even if the parking devices that can be driven are controlled within the same group. This is an extremely effective means because it allows the necessary number of parking devices to be installed without changing the preset capacity of the primary power source and without being limited by this capacity. Furthermore, the parking devices in other groups are not driven when the parking devices in a certain group are being driven to move from a lowered state to a raised state or from a raised state to a lowered state. ,
When the support base of the parking device is in a stopped state such as a raised state or a lowered state, each parking device in another group can be driven, and each parking device can be operated efficiently.

Hereinafter, one embodiment to which the present invention is applied will be described in detail based on FIGS. 3 to 5. In this embodiment, the primary power source only has the capacity to drive four parking devices at the same time, but this is a case where 12 parking devices can be provided. The number of these 12 parking devices that can be driven is determined according to the capacity of the primary power source shown in Figure 3, that is, 4 devices each.
It is divided into three groups. Each of these groups,
For example, when the leftmost parking device a of the first group is driven, the other parking device b of the first group is operated.
Although parking devices a to d are drivable, all parking devices a to d and a to d of the second to third groups are not driven. That is, four or more parking devices among the 12 parking devices are not driven at the same time.

FIG. 4 shows a circuit diagram of the control device implemented for the first set. This control device has control units 25a to 25d for the motors 4a to 4d of the four parking devices a to d, respectively, and these control units 25a to 25d each have a switch for lifting and lowering as in the conventional one. It has a contact portion 8. In addition, between the secondary windings of the step-down transformer 22 connected between the UV lines, there is an operation switch section 9 and a contact drive circuit 23 for switching up and down.
are connected in series. Since the operation switch section 9 is the same as the conventional one, detailed explanation will be omitted. The contact drive circuit 23 for switching up and down has a structure in which separate relays 24 and 26 are added in parallel to the relays 14 and 18 in the conventional drive circuit 10, and the relay contacts 28 and 30 are closed when these are energized. This is what I did.

Furthermore, X2 and X3 relay contacts 38 and 40 are connected in series with the operation switch section 9, and between the connection point of the relay contacts 28 and 30 and the relay 18.
X1 relay 42 is connected.

The control device implemented for the second set is as shown in FIG. The control device is configured similarly to the control device implemented for the first set except for this point. The control device implemented for the third set is the same as the first one except that an X1 relay contact 44 is provided in place of the X3 relay contact 40 of each control section, and an X3 relay 48 is provided in place of the X1 relay 42. It is configured similarly to the control device implemented for the group. When any of the X1 relays 42 is energized, all X1
When relay contacts 44 are opened and any of the X2 relays 46 are energized, all X2 relay contacts 38 are opened, and when any of the X3 relays 48 are energized, all X3 relay contacts 40 are energized. be opened.

In this parking device, for example, the first set of control units 2
When the lowering switch 11 and the starting switch 12 of the operation switch section 9 in the operating switch section 5a are opened, the relay 14 is energized and the support base 3 is lowered as in the conventional case. At the same time, the relay 24 is also energized, the relay contact 28 is closed, and the X1 relay 42 is energized.
This opens the X1 relay contacts 44 of the second and third sets of control units. Therefore, no matter how you operate the operation switch section 9 of each control section of the second and third groups, the second and third groups,
The support stand 3 is not driven. However, since the other control sections 25b to 25d of the first group do not include the X1 relay contact 44 at all, when the operation switch section 9 of the other control sections 25b to 25d of the first group is operated, the above-mentioned In the same manner as above, the first set of support stands 3 is lowered. Note that when the lift switch 16 is closed, the relay 26 is energized, the relay contacts 30 are closed, the X1 relay 42 is energized, and all the X1 relay contacts 44 are opened in the same manner as described above.

When one of the operation switch sections 9 of each control section of the second group is operated, all the X2 relay contacts 38 of the first group and the third group are similarly opened.
The first set and the third set of support stands 3 do not operate. Similarly, when any operation switch section 9 of each control section of the third group is operated, all X3 relay contacts 40 of the first group and the second group are opened, and the X3 relay contacts 40 of the first group and the second group are opened. The second set of supports 3 does not operate.

In this way, in this embodiment, only a maximum of four parking devices are driven, so the number of driveable parking devices determined according to the capacity of the primary power source, that is, four or more parking devices must be installed. Can be done.

In the above embodiment, the X1, X2, X3 relays 42,
46 and 48 are each connected in parallel to the elevation switching contact drive circuit 23, but they may be connected in series. Further, although the step-down transformer 22 is used, this may be removed depending on the case. Furthermore, although one set is made up of four parking devices, the number of parking devices making up one group can be increased or decreased depending on the capacity of the primary power source. In addition, although the number of groups is three, it can be increased or decreased depending on the situation.

[Brief explanation of drawings]

FIG. 1 is a front view of a conventional parking device, FIG. 2 is a circuit diagram of a conventional parking device control device, and FIG. 3 is a parking device controlled by an embodiment of the parking device control device according to the present invention. FIG. 4 is a schematic diagram showing the state of the parking device, in which a is a top view, b is a front view, FIG. 4 is a circuit diagram of a first set of control devices of the same embodiment, and FIG. 5 is a circuit diagram of a second set of control devices of the same embodiment. and FIG. 7 is a circuit diagram of main parts of a third set of control devices. 4a to 4d...Motor, 9...Operation switch section, 8...Elevation switching contact section, 23...Drive circuit for the elevation switching contact section, 25a to 25d...Control section, 38, 40, 44... Relay contact, 42,4
6,48...Relay.

Claims (1)

[Claims] 1. A plurality of parking devices are divided into a plurality of groups, with parking devices having the same number or less as the number of drivable parking devices determined according to the capacity of the primary power source, and each group constitutes one group with the above power source. A control section is provided between each of the plurality of motors for lifting and lowering the support platform of the parking device, and these control sections are connected to a switching contact section for lifting and lowering that is provided between the motor and the power supply, and It has a series circuit of a drive circuit for a switching contact section, a normally closed contact, and an operation switch section for energizing the drive circuit, and a contact drive circuit that operates when the drive circuit is energized, and the contact drive circuit is A parking device characterized in that the normally closed contacts of the other sets of control units are opened when activated.