JPH0229145B2 - - 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, the above-mentioned parking device has been 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 the vehicle 2 is placed is provided between them, and the support stand 3 is raised and lowered by a motor 4.
The motor 4 on the column 1 on the right side in the figure raises and lowers the support stand 3 in the center, and the motor 4 on the column 1 on the left side in the figure raises and lowers the support table 3 on the left side. Reference numeral 5 denotes a lower limit detection limit switch, which is used to stop 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 that turns the motor off 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 hit the motor 4 when rising. This is for stopping 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 two boxes and is attached to a pillar 1, etc., so that it does not interfere with the entry and exit of the vehicle.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 groups equal in number to the number of drivable parking devices determined according to the capacity of the primary power source, and each group is connected to the above power source. It has a control section provided between each of the plurality of support platform lifting motors of the parking device constituting one set, and these control sections are connected to a lifting switch provided between the motor and the power supply. It has a series circuit of a contact part, a drive circuit for the lifting switching contact part, a normally closed contact, and an operation switch part for energizing the drive circuit, and a contact drive circuit that operates when the drive circuit is energized. This contact drive circuit is characterized in that, when activated, the normally closed contacts of the control units of the same group other than the control unit to which it belongs are opened.

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 is energized through the normally closed contact of the parking device, The switching contact section switches, and the motor for lifting and lowering the support platform rotates in a predetermined direction.
The support platform moves up and down. At this time, since the drive circuit is energized, the contact drive circuit of this parking device is also energized. As a result, the normally closed contacts connected in series with the drive circuit are opened in other parking devices of the same group as the parking device whose support platform is being raised and lowered. Therefore, other parking devices in the same group as the parking device whose support platform is being raised and lowered do not operate. That is, only one parking device is driven within the same group. The number of sets is determined according to the capacity of the primary power source. Therefore, the capacity of the primary power source that has been set in advance is not exceeded, and the required number of parking devices can be installed by simply increasing or decreasing the number of parking devices in one set. Since a large number of parking devices are usually not driven at the same time, there is no substantial problem even if the number of parking devices that can be driven within one set is limited. This is an extremely effective means because it allows the necessary number of parking devices to be set without changing the preset capacity of the primary power source and without being limited by this capacity. Moreover, the other parking devices in the same group are not driven when one parking device is 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, other parking devices in the same 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 with reference to FIGS. 3 and 4. In this embodiment, the primary power source only has the capacity to drive three parking devices at the same time, but this is the case where 12 parking devices can be provided. These 12 parking devices are divided into 3 groups, which is the same number of drivable parking devices as shown in Figure 3, which is determined according to the capacity of the primary power source, and each group has 4 parking devices. It has equipment. Each of these groups,
The control device described below is implemented in each
For example, in the first group, if the leftmost parking device a is being driven, the other parking device b
d to d are not driven. Similarly, in the second group, for example, the second parking device from the left b
is being driven, other parking devices a, c,
d is not driven. Further, in the third group, for example, if the rightmost parking device d is being driven, the other parking devices a to c are not driven.
That is, three 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 group. Since the control devices of other groups are similarly configured, circuit diagrams are omitted. This control device has control units 25a to 25d between the motors 4a to 4d of the four parking devices a to d, respectively, and these control units 25a to 25d.
Each of these has a switching contact section 8 for lifting and lowering, similarly to the conventional one. Further, an operation switch section 9 and a contact drive circuit 23 for switching up and down are connected in series between the secondary windings of the step-down transformer 22 connected between the UV lines. Since the operation switch section 9 is the same as the conventional one, detailed explanation will be omitted. The elevation switching contact drive circuit 23 includes separate relays 2 in parallel with the relays 14 and 18 in the conventional drive circuit 10.
4 and 26, and the relay contacts 28 and 30 are configured to close when these are energized.

In the control section 25a, in series with the operation switch section 9,
X2, X3, and X4 relay contacts 38, 40, and 42 are connected. Similarly, in the control section 25b, X1, X3, X4 relay contacts 44,
46, 48 are connected, and in the control section 25c, X1, X2, X4 relay contacts 50, 52, 54 are connected in series with the operation switch section 9.
In d, X1, X2, X3 are connected in series with the operation switch part 9.
Relay points 56, 58, and 60 are connected.

In the control section 25a, an X1 relay 62 is connected between the connection point of the relay contacts 28 and 30 and the relay 18. Similarly, an X2 relay 64 is connected to the control section 25b, an X3 relay 66 is connected to the control section 25c, and an X4 relay 68 is connected to the control section 25d. When the X1 relay 62 is energized,
When the X1 relay contacts 44, 50, and 56 are opened, and the X2 relay 64 is energized, the X2 relay contacts 38,
52 and 58 are opened, and the X3 relay 66 opens the X3 relay contacts 40, 46, and 60 when energized.
X4 relay 68 opens X4 relay contacts 42, 48, and 54 when energized.

In this control device, for example, when the drop switch 11 and start switch 12 of the operation switch section 9 in the control section 25a are closed, the relay 14 is energized,
The support platform 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 62 is energized. This opens the X1 relay contacts 44, 50, and 56 in the control units 25b, 25c, and 25d. Therefore, the control section 2
No matter how the operation switch parts 9 of 5b, 25c, and 25d are operated, the support stand 3 is not driven. Note that when the lift switch 16 is closed, the relay 26 is energized, the relay contacts 30 are closed, the X1 relay 62 is energized, and the X1 relay contacts 44, 50, 56 are opened in the same manner as described above.

Similarly, the control unit 25b controls the support base 3 of the parking device b.
When moving up and down, each X2 relay contact 38, 52,
58 is opened and the control unit 25c raises and lowers the support base 3 of the parking device c, each X3 relay contact 40,
46 and 60 are opened, and when the control unit 25d raises and lowers the support base 3 of the parking device d, the X4 relay contacts 42, 48, and 54 are opened, and the other parking devices are not driven. In this way, in this embodiment, three or more parking devices are not driven at the same time, so the capacity of the primary power source is not exceeded, and the parking devices that can be driven are determined according to the capacity of the primary power source. It becomes possible to install three or more parking devices.

In the above embodiment, the X1, X2, X3, and X4 relays 62, 64, 66, and 68 are connected in parallel to the elevation switching contact drive circuit 23, but they may be connected in series. Although a step-down transformer 22 is used, this may be removed in some cases.

[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 control device controlled by a first embodiment of a 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, and FIG. 4 is a circuit diagram of the first embodiment. 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 to 60...Relay contact (normally closed contact),
62 to 68... Relays (contact drive circuits).

Claims (1)

[Claims] 1 A plurality of parking devices are divided into groups of the same number as the number of drivable parking devices determined according to the capacity of the primary power source, and each group consists of a plurality of parking devices that constitute one group with the above power source. It has a control section provided between each motor for lifting and lowering the support platform, and these control sections include a switching contact section for lifting and lowering provided between the motor and the power supply, and a drive circuit for the switching contact section for lifting and lowering. and a series circuit of 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 this contact drive circuit is connected to a control section other than the control section to which it belongs. A parking device characterized in that the normally closed contacts of the control units of the same set are opened during operation.