JPH0124285Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a safety device in an elevating parking facility having a vehicle platform that can be raised and lowered.

Conventionally, the simplest type of parking equipment mentioned above has a plurality of parking rows, each parking row is equipped with one platform for mounting vehicles that can be raised and lowered, and entrances and exits are formed on the entire surface of the above-ground area. The entire floor of the parking lot is a flat parking space, and the platform is lowered only when entering or exiting the parking platform. Such parking equipment is equipped with a remote control panel for raising and lowering the vehicle platform for each parking row, each of which constitutes an independent control circuit.

As mentioned above, when the entire ground floor is designated as a flat parking space, the parking area for each parking row is marked with white paint, but vehicles are often parked outside of this area. Sometimes the door is left ajar. If the vehicle platform of the adjacent parking row is lowered in such a state, the vehicle platform will collide with the above-mentioned protruding vehicle.
In addition, if a vehicle to be loaded onto a loading platform enters the warehouse with its side protruding from the loading platform and is raised as it is, the loaded vehicle may be damaged by the framework or beams of the loading platform or parking equipment waiting in the adjacent parking row. A collision results in a major accident.

In view of the above-mentioned circumstances, the present invention provides an object detection means at least at the boundary between adjacent parking rows, and a detection signal from the object detection means is used to detect each vehicle platform for the parking rows on both sides of the detection means. It is an object of the present invention to provide a safety device for an elevating type parking facility, which is characterized in that the elevating drive is made inactive, and eliminates any unexpected accidents as described above.

Hereinafter, a detailed description will be given based on the embodiments shown in the drawings.

1 is the building, with 4 parking rows on the left and right: RA, RB,
There are RC and RD, and each parking row RA to RD has upper and lower parking rows.
A lower parking space U and D are formed, and the lower parking space D
The front opening is designated as the entrance 2. The entire ground floor 3 of the lower parking space D is used as a flat parking space. 4a to 4d are parking rows RA
~A vehicle platform for mounting four vehicles W arranged to be able to rise and fall on the RD, each with a chain sprocket mechanism 5
It is suspended horizontally by a to 5d, and can be raised and lowered by drive sources 6a to 6d installed at the upper part of the building 1. In addition, the chain sprocket mechanism 5
Limit switches LUa to LUd (not shown) for stopping the upward movement and limit switches LDa to LDd (not shown) for stopping the downward movement of each of the vehicle platforms 4a to 4d are provided in relation to the vehicle platforms 4a to 5d.

Reference numeral 7 denotes a control device for the entire parking facility installed outside the left side of the entrance/exit 2, and has a built-in power switch (not shown). 8a to 8d are remote control panels for each parking row RA to RD derived from the control device 7, of which only the remote control panel 8a is fixedly installed on the front wall 1a on the left side of the entrance/exit 2, and the remaining control panels 8b to 8d are 8d is the hanging wall 1 of the entrance/exit 2 at the boundary of each parking row.
It hangs down to an appropriate height from b. Each of the remote control panels 8a to 8d is provided with an upward push button UB, a downward push button DB, and an emergency stop push button EB. Of these, the push buttons UB and DB are of the automatic return type.

PC1 to PC5 are photoelectric devices as object detection means installed so as to partition each of the parking rows RA to RD, each of which is configured with a light emitter and a light receiver, and located at an appropriate height above the floor 3 (approximately of the vehicle W). At half the height), the beam is projected horizontally in the direction in which the vehicle W enters. Of these, PC2, 3,
4 is located at the boundary between parking rows RA to RD.

The remote control panels 8a to 8d have substantially the same circuit configuration, and the circuit of the remote control panel 8b is shown in FIG. 3 as a representative example. FIG. 4 shows a control circuit for the drive source 6b linked to the remote control panel 8b among the control circuits for the drive sources 6a to 6d built into the control device 7. In FIGS. 3 and 4, M is the drive source 6b
R, S, and T are the power supply phases of the motor M, PS are the contacts of the power switch, and UBS and DBS are the upward push buttons UB and DBS, respectively.
The normally open contact of the lowering push button DB, EBS is the normally closed contact of the emergency stop push button EB, LUS and LDS are the normally closed contacts of the above mentioned limit switch LUb for lifting and stopping, and limit switch LDb for lowering, respectively, UR and DR.
are a rising relay and a falling relay, respectively. US1 to US3 and US4 are normally open contacts and normally closed contacts that are activated by the excitation of the lifting relay UR,
DS1 to DS3 and DS4 are the lowering relays DR
These are normally open contacts and normally closed contacts that are activated by excitation.

Further, the phase R includes a normally closed contact PC2 of the photoelectric devices PC2 and PC3 as an abnormality detection section 100B.
S and PC3S are connected in series.

Figure 5 a, b, c are remote control panels 8a, 8c, 8
In the circuit diagram similar to FIG. 3 in d, the circuits of the respective abnormality detection units 100A, 100C, and 100D are shown. Among these, PC1S, PC4S, PC
5S are the photoelectric devices PC1, PC4, and PC, respectively.
5 normally closed contacts.

Currently, each parking row RA to RD has vehicle platforms 4a to 4d.
It is assumed that the is stopped in the raised position. Therefore, the normally closed contacts LUS of the lifting limit switches LUa to LUd are open in the circuits of the respective remote control panels 8a to 8d. It is also assumed that the power switch has already been turned on and its normally open contact PS is closed as shown by the solid line in FIG. Furthermore, the empty spaces are the upper and lower parking spaces U and D of parking row RB and parking row
RC lower parking space D only, photoelectric device PC1~
It is assumed that all PCs 5 are operating normally and are not detecting objects.

Therefore, when the driver who wants to park the vehicle on the platform 4b presses and releases the lowering pushbutton DB on the remote control panel 8b, the normally open contact DBS instantly closes and the contacts PC2S, PC3S, PS, EBS, DBS, LDS ，
Since the US4 circuit is conductive, the lowering relay DR is energized. Normally open contact due to excitation of the relay DR
Since DS1 closes and forms a self-holding circuit, relay DR remains energized even if contact DBS subsequently opens by automatic reset. Also, due to the excitation of relay DR, other normally open contacts DS2 and DS3 are also closed, and normally closed contact DS4 is closed.
opens. Therefore, the electric motor M of the drive source 6b is driven in the downward direction, and the empty platform 4b is moved downward. Immediately after the descent starts, the limit switch LUb for stopping the rise is deactivated, and its normally closed contact LUS is closed.

When the vehicle platform 4b lands on the floor 3, the limit switch LDb for stopping the descent is activated, and the normally closed contact
Since LDS opens, relay DR is demagnetized, normally open contacts DS1 to DS3 open, and normally closed contact DS4
is closed, and the electric motor M stops driving.

Next, the driver places the vehicle W on the platform 4b that has landed on the platform.
drive in reverse. In the meantime, another vehicle W enters the lower parking space D of the parking row RC and enters the parking space D through the door W.
If the driver leaves without the door W1 being locked, and the door W1 becomes half-open for some reason as shown in FIGS. Close contact PC3S is opened.

Therefore, the driver who has finished parking the vehicle in the vehicle platform 4b presses the lift button on the operation panel 8b to raise the vehicle platform 4b without knowing that the door W1 is half open.
Even if UB is pushed, the upward relay UR will not be energized due to the opening of the normally closed contact PC3S, and the electric motor M will never be driven. In this way, an accident in which the vehicle platform 4b and the loaded vehicle W come into contact with the half-open door W1 due to the upward movement of the vehicle platform 4b is prevented.

After that, the driver noticed the aforementioned half-open door W1,
When the door W1 is completely closed and the lift button UB is pressed again on the operation panel 8b, the photoelectric device PC2,
Since PC3 is in a state where no object is detected, contact PC2
The circuits S, PC3S, PS, EBS, UBS, LUS, and DS4 become conductive, and the ascending relay UR is energized. Therefore, since the normally open contacts US1 to US3 are closed, the electric motor M of the drive source 6b is driven in the upward direction, and the vehicle platform 4
b rises with vehicle W still mounted. When the vehicle platform 4b reaches the original raised position, the limit switch LUb for stopping the lift is activated, and the relay UR is demagnetized and the electric motor M is stopped, thereby causing the vehicle platform 4b to stop rising. Of course, if the door of the loading vehicle W opens during the ascent of the loading platform 4b and blocks at least one beam of the photoelectric devices PC2 and PC3, the contact point PC2
Since S or PC3S is opened, the electric motor M immediately stops driving and the built-in off-brake is operated to hold the platform 4b in that position.

In addition to the above-described embodiments, the present invention can also be modified as described below.

() In the above embodiment, a photoelectric device was used as the object detection means, but an ultrasonic oscillation device may also be used. Alternatively, a rope or bar may be installed at the boundary of the parking row in the vehicle entry direction, and the swinging of the rope may be detected by a limit switch.

() In the above-mentioned embodiment, the parking equipment is built into the building, but it may be a so-called steel frame assembly parking equipment in which steel pillars are erected at the four corners of each parking row.

() In the above-mentioned embodiment, the explanation was made using a plurality of rows, but it can also be applied to a single row. In the case of a single row, there is a risk that the half-door of the loaded vehicle may protrude from the platform and come into contact with the equipment frame or beam while the platform is being raised or lowered, so the device of the present invention is effective in preventing this.

() In the above-mentioned embodiment, there are multiple rows in the direction perpendicular to the vehicle entry direction, but this can also be applied to parking facilities with multiple rows in the vehicle entry direction (usually referred to as multiple rows) as shown in Fig. 6. can. That is, in FIG. 6, there is a front row R1 and a back row R2 in the vehicle entry direction,
Placing tables P1 and P2 that can be raised and lowered are arranged in each row,
Ground floor F is used as a parking space throughout the area. A photoelectric device Z (of course, it may be replaced with an ultrasonic oscillator) that projects a beam in a direction perpendicular to the vehicle entry direction onto the boundary K between the front row R1 and the back row R2 is arranged at an appropriate height from the floor F. Set up

() In the above-mentioned embodiment, the lower parking space D of each parking row RA to RD is designed to park the vehicle W directly on the ground floor 3, but in order to facilitate entry and exit, the vehicle W can be parked directly in the lower parking space D. You may provide one less mounting stand than the number of parking rows. In this case, each photoelectric device exhibits a detection function only when the traversing vehicle platform is stopped, and the traversing is not stopped even if light is blocked during the traversing. Furthermore, the device of the present invention is also effective when parking spaces are provided underground, with multiple rows of three stages.

As detailed above, according to the device of the present invention, when a vehicle mounted on the desired vehicle chassis or a vehicle parked in the parking row next to it is in an improper parking state such as with a half-open door,
When this is detected, the platforms in the parking rows on both sides of the detected object detection means cannot be raised or lowered, making it possible to easily prevent collisions between vehicles, vehicles and platforms, or collisions between vehicles and their bodies. This mechanism has a great effect on safety.

[Brief explanation of the drawing]

All drawings show examples of the present invention.
Figure 1 is a front view of the entire parking facility, Figure 2 is a plan view taken in the direction of arrows in Figure 1, Figure 3 is a circuit diagram of the operation panel,
FIG. 4 is a circuit diagram of the electric motor, FIG. 5 is a circuit diagram of only the abnormality detection section in each operation panel, and FIG. 6 is a side view of the parking facility in another embodiment. In the figure, 1 is a building, 4a to 4d are vehicle platforms, and 6a to
6d is the drive source, RA~RD is the parking row, PC1~PC5
is a photoelectric device and W is a vehicle.

Claims (1)

[Scope of claim for utility model registration] (1) Having multiple parking rows, with at least one parking row in each parking row.
In the vehicle mounting platform which is movable up and down and has an entrance/exit in front of the parking row, an object detection means is provided at least at the boundary of each adjacent parking row, and the object detection means 1. A safety device for an elevating parking facility, characterized in that a detection signal from the detecting means disables the elevating drive of each vehicle platform for parking rows on both sides of the detecting means. (2) The safety device for an elevating parking facility according to claim 1, wherein the object detection means comprises a photoelectric device or an ultrasonic oscillation device.