JP2742918B2 - Lifting control method and device for mechanical parking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for controlling elevation of a mechanical parking device.

[0002]

2. Description of the Related Art FIG. 3 shows a mechanical parking device according to the background art of the present invention. The mechanical parking equipment shown in FIG. 1 is a so-called elevator-type multi-story parking device, and a lifting platform 2 on which a vehicle is mounted is moved up and down in a central portion of a parking structure 1 that supports the multi-story parking lot device. A plurality of parking shelves 3L and 3R for parking a vehicle are provided on both left and right sides of the elevating space of the elevating platform 2, respectively.

A pallet 15 (not shown in FIG. 3 for simplicity) for mounting the vehicle, which will be described later, is mounted on each of the parking shelves 3L and 3R. It is stored in the parking shelves 3L and 3R as it is.

[0004] Incidentally, reference numeral 9 provided on the ground is a vehicle entrance for a vehicle to enter.

FIG. 4 is a block diagram showing the entire structure of a conventional elevator type multi-story parking device.

As shown in FIG. 1, the lifting platform 2 is rectangular, and its four corners are wire ropes 4a and 4a, respectively.
It is suspended by 4b, 4c, 4d. These four wire ropes 4a, 4b, 4c, 4d are provided by deflected cars 5a, 5 provided on the ceiling of the parking structure 1, respectively.
After passing through b, 5c and 5d, they are gathered at one place toward the driving vehicle 8 and further pulled out downward to balance weight 1
Connected to 0.

The drive wheel 8 is configured to be driven to rotate in both forward and reverse directions by a drive motor 11.

Reference numeral 12 denotes a lifting / lowering control device for controlling the driving of the drive motor 11 in response to a command required by operating the operation panel 13, and an encoder 14 serving as a position detecting means attached to the shaft of the drive motor 11. Since the number of pulses from is counted and stored, the position of the lift 2 can always be known.

The vehicle is mounted on the lift 2 via a pallet 15.

This pallet 15 is, as shown in FIG.
The vehicle has a wheel 15a at the bottom so that it can move in the left-right direction. The vehicle is transferred to a parking shelf on a target floor while being placed on the pallet 15 and stored.

As shown in FIG. 1, the pallet 15 is formed by bending a steel plate to reduce the weight as much as possible while maintaining the bending strength.
5c, 15d and recessed vehicle entry surfaces 15e, 15f through which tires of the vehicle W pass.

The operation of storing the vehicle W in such a conventional elevator-type multi-story parking device is as follows.

First, a person in charge of the parking facility or the user himself / herself operates the operation panel 13 of the elevation control device 12 of the parking facility.
To search for empty parking shelves and call the pallet 15.

The elevator 2 moves to the floor of the empty parking shelf,
The elevator 2 is stopped with the upper surface of the elevator 2 aligned with the floor of the parking shelf. Subsequently, horizontal driving means (not shown) provided on the parking shelf or the lift 2 is used to move the pallet 15 of the parking shelf.
Is moved in the direction of the elevating table 2 and placed.

The elevating platform 2 securely holds the pallet 15 by a lock mechanism (not shown), descends to the vehicle entrance 9 and stops. The stop position of the lift 2 at this time is determined by the vehicle entry surfaces 15e and 15f of the pallet 15
And the height of the floor of the vehicle entrance 9 is made to match.

A user enters his / her vehicle and pallets 1
5, when the user gets off the vehicle, the elevator 2 rises, stops at the position of the empty parking shelf, and horizontally moves the vehicle along the pallet 15 in the direction of the parking shelf by the horizontal driving means. And store it in the parking shelf.

In the case of unloading, the operation is substantially the reverse of the above, and the staff or the user of the parking facility operates the operation panel 13 of the elevation control device 12 of the parking facility to mount the vehicle of the user. When a call is made to the pallet 15 placed thereon, the elevator 2 moves to the parking shelf and stops, the vehicle is moved horizontally along with the pallet 15 on the elevator 2, and the elevator 2 descends. Pallet 1 at vehicle entrance 9
5 stops at a position where the height of the vehicle entrance surfaces 15e and 15f and the height of the floor surface of the vehicle entrance 9 coincide with each other.

Then, the user gets into the vehicle and leaves the vehicle through the vehicle entrance 9.

[0019]

However, in the conventional method of controlling the stop position of the elevator, in the conventional method of controlling the position of the elevator, the elevator 2 is provided with the heights of the vehicle entrance surfaces 15e and 15f of the pallet 15 and the vehicle entrance / exit. 9 is set so as to stop at a position where the heights of the floor surfaces coincide with each other, there are the following problems.

That is, when a vehicle is placed on the elevator 2 and a load is applied, the wire ropes 4a, 4b, 4c and 4d for suspending the elevator 2 are slightly extended. When the vehicle W is lowered from the elevator 2 at the vehicle entrance 9, the load on the elevator 2 decreases, and the wire ropes 4a, 4b, 4c, and 4d try to return to the original length. 2, the vehicle W is in an oblique state as shown in FIG.
There is a problem that the tip of the projection 15c is in contact.
For this reason, the bottom of the vehicle W may be damaged, and important exhaust gas pipes and other parts may be damaged. In addition, even if the damage is not caused up to that point, the user may be very uncomfortable. Become.

To solve this problem, a wire rope 4
It is sufficient to use a material having high rigidity against the pulling force as the material of a, 4b, 4c, and 4d, but it is expensive and difficult to wind up with the driving wheel 8. Also, even if such a rope is adopted, the wire ropes 4a, 4b, 4c, 4
Since d is suspended from the ceiling of the parking structure 1 and has a very long length to the ground, it is almost impossible to completely eliminate the change in expansion and contraction due to the increase and decrease of the load.

It is an object of the present invention to solve the above-mentioned problems and to provide a method and an apparatus for controlling the elevation of a mechanical parking device in which the bottom of the vehicle is not damaged at the time of departure.

[0023]

In order to achieve the above object, a method for controlling the elevation of a mechanical parking device according to the present invention comprises:
A lift control method for a mechanical parking device provided with a lift for mounting and lowering a vehicle, comprising: detecting whether or not the vehicle is mounted on the lift and detecting the mechanical parking when the vehicle is mounted. The stop position at the vehicle entrance of the device, from the stop position at the vehicle entrance when the vehicle is not mounted,
The lift control device of the mechanical parking device according to the present invention is characterized in that it is stopped at a lower position by a fixed amount, and the mechanical parking device includes a lift platform for mounting and lowering the vehicle. In the elevating control device, position detecting means for detecting a current position of the elevating platform, vehicle detecting means provided on the elevating platform for detecting whether a vehicle is mounted on the elevating platform, and a signal from the position detecting means And a signal from the vehicle detection means, a position control device for controlling the stop position of the lift platform, the position control device, when the mounting of the vehicle on the lift platform is detected by the vehicle detection means,
The stop position at the vehicle entrance / exit of the mechanical parking device of the lift platform is controlled to stop at a position below the stop position when the vehicle is not mounted by a fixed amount. .

[0024]

The vehicle detecting means detects whether or not a vehicle is mounted on the elevator, and when the vehicle is mounted, the stop position at the vehicle entrance of the elevator is changed to a normal stop position (pallet). (Where the height of the tire passage surface and the floor of the vehicle entrance / exit are the same), the restoring force of the wire rope when the vehicle is lowered from the elevator at the vehicle entrance / exit. Therefore, even if the elevator is pulled up, the height becomes just right and the vehicle does not tilt, so that the convex portion of the pallet does not contact the bottom of the vehicle.

When the vehicle is not mounted, the vehicle stops at a normal stop position.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings, but the technical scope of the present invention is not limited thereto.

FIG. 1 is a block diagram showing a configuration of a lift control device for a mechanical parking device according to the present invention.

In the figure, the components denoted by the same reference numerals as those in FIG. 4 have the same contents, and the description is omitted.

Elevating platform position management unit 2 as position control device
1 receives a signal from the operation of the operation panel 22. At this time, the elevator position management unit 21 confirms the current position of the elevator by the encoder 14 as position detecting means attached to the rotating shaft of the drive motor 11, and moves up and down until the target parking shelf position Y is reached. An instruction is sent to the inverter 24 so that the table moves up and down, and the inverter 24 receives the instruction and sends necessary power to the drive motor 11. When the position of the lift 2 becomes Y, the signal from the lift position manager 21 to the inverter 24 is stopped, and the lift 2 is stopped at the target parking shelf position. Further, a detection signal of a vehicle detector 25 as a vehicle detecting means is sent to the elevator position management unit 21.

When the elevator 2 is called to the vehicle entrance 9, it is determined that the vehicle W is not mounted on the elevator 2 based on a signal from the vehicle detector 25 installed on the elevator 2. For example, the vehicle is stopped at a normal stop position (a position where the heights of the vehicle entrance surfaces 15e and 15f of the pallet 15 and the floor surface of the vehicle entrance 9) coincide with each other, but when the vehicle W is mounted. If it is determined, the vehicle is stopped at a position lower than the normal position by a fixed amount m.

The ideal value of the constant amount m is an amount that can be pulled up by the restoring force of the wire rope.
It can be easily calculated from the expansion and contraction ratio of the wire rope, the weight of the vehicle, and the distance of the wire rope from the ceiling, but some errors may be allowed. However, if m is too large, there is too much step with the vehicle entrance / exit floor, and the vehicle cannot be taken out of the vehicle entrance / exit.
Is too small, the bottom of the vehicle is
Care must be taken because it comes into contact with c.

The vehicle detector 25 may be provided with a piezoelectric element at a place where the pallet 15 is placed on the upper surface of the elevator 2, or the photoelectric device may be mounted at a height of the elevator 2 across the vehicle. May be provided so that the vehicle W is detected.

If the load cell is used as a detector, the weight of the vehicle W can be accurately measured, whereby the expansion / contraction amount m is obtained each time, and finer control becomes possible. The operation when the elevator 2 is moved to the vehicle entrance 9 by the elevator controller of the mechanical parking device constructed as described above will be described with reference to the flowchart of FIG.

First, the operation panel 22 is operated to call the target pallet 15 to the vehicle entrance 9 (step S).
1).

Next, according to the signal from the vehicle detector 25,
The lift position management unit 21 determines whether a vehicle is mounted on the pallet 15 (Step S2).

The elevator platform position management unit 21 includes the encoder 14
The pulse signal from the vehicle is counted and stored, and the current position X of the elevator 12 is always grasped.
Since the 3L and the data relating to the position of the vehicle entrance 9 are input to the position storage unit 23, if it is determined in step S2 that no vehicle is mounted on the pallet 15, the position storage unit The position Y of the vehicle entrance 9 is determined based on the data stored in 23, and is set as the target position P = Y (step S3),
A command is sent to the inverter 24 to lower the lift 2 until the value of the position X of the lift reaches the target position Y (steps S5, S6, S7).

If it is determined in step S2 that a vehicle is mounted on the pallet 15, the position Y of the vehicle entrance 9 is determined in the same manner as described above, and the target position P = Ym. A command is sent to the inverter 24 until the value of X becomes Ym, and the elevator 2 is lowered (steps S5, S6, S7).

Accordingly, when the vehicle is mounted on the lift 2, the vehicle stops at a position lower than the normal position by m, so that even if the lift 2 rises when the vehicle gets off the lift 2, The protrusion 15c of the pallet 15 does not contact the bottom of the vehicle W.

If it is determined in step S2 that the vehicle is not mounted on the platform 2, the vehicle stops at the normal Y position.

In this embodiment, only the control mechanism for the stop position is disclosed in the lift control device. In addition, a drive speed control device for the lift table is provided, and the lift speed of the lift table is made variable. By controlling it to be slow near the beginning and stop and fast in the middle,
Pallet waiting time can also be configured to be significantly reduced.

Also, due to slipping of the driving car 8 or the like,
Since the position of the lift 2 detected by the encoder 14 may deviate from the actual position of the lift 2,
An object sensor may be provided in the middle of the elevating space, and a mechanism may be added that, when the object sensor detects the elevating platform 2, compares it with the position of the elevating platform 2 detected by the encoder 14.

Further, the mechanical parking equipment to which the present invention is applied is not limited to the elevator type multi-story parking apparatus as in the above embodiment, but is a mechanical parking apparatus which lifts and lowers a lifting platform approximately by using a rope or the like. Anything is fine.

[0043]

As described above, according to the present invention, the vehicle detecting means detects whether or not a vehicle is mounted on the elevator, and when the vehicle is mounted, the vehicle enters and leaves the elevator. Since the stop position at the mouth is set to a position lower than the normal stop position, when the vehicle is lowered from the elevator at the vehicle entrance, even if the elevator rises due to the restoring force of the wire rope. The height is just right and the vehicle does not lean, so that the protrusion of the pallet does not contact the bottom of the vehicle.

Further, when the vehicle is not mounted, the vehicle stops at the normal stop position, so that there is no problem when the vehicle enters or leaves the vehicle.

[Brief description of the drawings]

FIG. 1 is an overall block diagram of an embodiment of a lift control device for a mechanical parking device according to the present invention.

FIG. 2 is a flowchart showing control performed by the elevating control device in FIG. 1 when the elevating platform is moved to a vehicle entrance.

FIG. 3 is a diagram showing an elevator-type multi-story parking device as a background art of the present invention.

FIG. 4 is an overall block diagram of a conventional elevator-type multi-story parking device.

FIG. 5 is a perspective view showing an appearance of a pallet.

FIG. 6 is an explanatory view of a conventional elevator-type multi-story parking device when a vehicle is lowered from an elevator at a vehicle entrance.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Parking structure 2 Elevating stand 3L, 3R Parking shelf 11 Drive motor 14 Encoder 15 Pallet 21 Elevating stand position management part 22 Operation panel 23 Position storage part 24 Inverter 25 Vehicle detector

Claims (2)

(57) [Claims] 1. A lift control method for a mechanical parking device having a lift that carries a vehicle and moves up and down, wherein the method detects whether the vehicle is mounted on the lift and detects whether the vehicle is mounted. The stop position of the mechanical parking device at the vehicle entrance / exit opening is stopped at a position lower than the stop position at the vehicle entrance / exit when the vehicle is not mounted by a fixed amount. A lift control method for a mechanical parking device. 2. A lift control device for a mechanical parking device having a lift mounted and lowered by mounting a vehicle, wherein: a position detecting means for detecting a current position of the lift; and a lift provided on the lift. Vehicle detection means for detecting the presence or absence of a vehicle mounted thereon, and a position control device for controlling a stop position of the elevator based on a signal from the position detection means and a signal from the vehicle detection means, The control device is configured such that when the mounting of the vehicle on the elevator is detected by the vehicle detection means, the stop position of the mechanical parking device of the elevator at the vehicle entrance / exit port is when the vehicle is not mounted. An elevation control device for a mechanical parking device, wherein the elevation control device controls so as to stop at a position below a stop position by a fixed amount.