JP3919413B2 - Safety device for vertical circulation multistory parking facilities - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a safety device for a vertical circulation type multilevel parking facility. Specifically, in a vertical circulation type multilevel parking facility in which the vehicle accommodation means for conveying the vehicle circulates up and down and the vertical movement is reversed at least at the lower end, the vehicle accommodation means interferes with a fixed structure or the like at the lower end inversion portion of the parking facility The present invention relates to a safety device for preventing this.
[0002]
[Prior art]
As shown in FIG. 4, a vertical circulation type multilevel parking facility (hereinafter simply referred to as “parking facility”) F includes a plurality of pallets P for conveying a vehicle. The pallet P is circulated (arrow A in the figure) after the vehicle M is placed thereon, thereby moving the vehicle M up and down. The vehicle M is stored by placing the vehicle M on the pallet P and transporting the vehicle M to the parking lot (hangar) on each floor of the building using the pallet P. Further, the entrance E for the vehicle M to enter the pallet P of the parking facility F may be provided at the lowest position, or may be provided at the uppermost position or the intermediate position depending on the circumstances of the facility or building.
[0003]
Each pallet P is fixed to the lower end of a vehicle housing cage (hereinafter simply referred to as “cage”) K, and this cage K is generally circulated by a pair of looped chains C. One of the chains C is locked to the front portion of the entire cage K, and the other is locked to the rear portion of the entire cage K. Each chain C is locked to a sprocket wheel W disposed at the upper and lower parts of the parking facility F, and generally, a pair of upper sprocket wheels W are synchronized by a drive unit D disposed at the upper part. The entire pallet P is moved up and down and circulated by being rotated.
[0004]
[Problems to be solved by the invention]
When the parking facility F is used over a long period of time, the cage K may be slightly deformed, and the chain C may be extended. If such a situation occurs, the pallet P at the lowest position interferes with the fixed structure of the lower end inversion portion in the parking facility F, for example, the side of the pit Q or the walking deck R.
[0005]
Although the safety of the parking facility F has been confirmed by conducting strict inspections on a regular basis, safety measures have never been fully implemented.
[0006]
The present invention has been made based on such a background, and it is possible to detect a change in a circular movement trajectory of a pallet in a parking facility by a device having a simple structure, and to prevent the pallet from interfering with a fixed structure of the facility. It aims to provide a safety device to prevent.
[0007]
[Means for Solving the Problems]
(1) In order to achieve the above object, the safety device according to the present invention is a vertical circulation type solid body in which vehicle accommodation means for placing and transporting a vehicle circulates up and down between the uppermost point and the lowermost point. A safety device that is applied to a parking facility and detects a positional shift when the lowest point of the vehicle housing means has a predetermined amount of positional shift with respect to a preset reference point. It is characterized by comprising detection means and emergency detection means for detecting the positional deviation when the positional deviation exceeds an allowable amount.
[0008]
According to this configuration, when the circulation locus of the vehicle accommodation means changes during use of the parking facility, the lowest point of the vehicle accommodation means changes with respect to the reference point. Here, the reference point refers to the lowest point of the vehicle accommodation means at a stage that has not yet changed due to use, such as when the equipment is designed, manufactured, or trial run. When the change in the lowest point becomes a predetermined amount or more, the change in the lowest point, that is, the positional deviation with respect to the reference point at the lowest point of the vehicle housing means can be detected by the positional deviation detection means. . Furthermore, when this positional deviation exceeds an allowable amount, this can be detected by the emergency detection means. In particular, by using a light emitting element and a light receiving element as the misregistration detection means and the emergency detection means, respectively, the misregistration detection means and the emergency detection means can be configured with a simple structure at low cost.
[0009]
Therefore, by recording a predetermined amount of positional deviation detected by the positional deviation detecting means, it becomes possible to detect that the vehicle accommodation means has caused a positional deviation during regular maintenance. It is also possible to correct this misalignment during maintenance. In addition, when the emergency detection means detects a displacement that exceeds the allowable amount, the vehicle accommodation means can also be urgently stopped, thereby causing interference with a fixed structure or the like near the lowest point of the vehicle accommodation means. It can also be prevented beforehand.
[0010]
(2) Further, a support plate is disposed below the vehicle accommodation means at the lowest point and below the reference point, and the position deviation detection means and the emergency detection means are supported by the support plate. Further, when the vehicle accommodation means is at the lowest point, it is possible to prevent a person's foot from hitting the positional deviation detection means and the emergency detection means. This is because a person is generally near the vehicle accommodation means when the vehicle accommodation means is stopped at the lowest point, and at that time, the vehicle displacement accommodation means and the emergency detection means are at the lowest point. It is because it is hidden under the means. In addition, by adopting a structure in which the positional deviation detection means and the emergency detection means are supported by the support plate, it is easy to adjust the mounting positions of the positional deviation detection means and the emergency detection means sensor.
[0011]
(3) Further, by providing a recording means for recording the positional deviation based on the positional deviation signal that is output when the positional deviation detecting means detects the predetermined amount of positional deviation, it is possible during regular maintenance. It can be sensed that the vehicle housing means is displaced. And the position shift of a vehicle accommodation means can be corrected at the time of this maintenance.
[0012]
(4) In addition, the driving machine that circulates and drives the vehicle housing means and the emergency detection means are electrically connected, and the emergency detection means detects the positional deviation exceeding the allowable amount to thereby change the driving machine. If it is configured to stop, the vehicle accommodation means can be urgently stopped when the emergency detection means detects a displacement larger than the allowable amount, thereby fixing a fixed structure or the like near the lowest point of the vehicle accommodation means. Can be prevented in advance.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described.
[0014]
FIG. 1 is a front view of an essential part of a parking facility equipped with a safety device 10 according to an embodiment of the present invention. 2 is an enlarged view of the main part of the lower end corner of the cage K, and FIG. 3 is a view taken along the line X--X in FIG.
[0015]
Although the overall configuration of the parking facility is not shown, this parking facility has the same structure as the conventional one shown in FIG. That is, the parking facility is a three-dimensional parking facility of a vertical circulation type and includes a plurality of cages K (vehicle housing means). Each cage K has a pallet P at its lower end. Each pallet P carries the vehicle M on it and circulates up and down between the uppermost point and the lowermost point, thereby moving the vehicle M up and down.
[0016]
FIG. 1 shows a state where the cage K is located at the lowest point in the lower end inversion portion. The cage K drive mechanism can adopt the same configuration as that shown in FIG. Further, a pit Q is formed on the floor surface of the lower end inversion portion, and the walking deck R is disposed from the side surface of the pit Q to the vicinity of both side positions of the pallet P located at the lowest point. Conventionally, such a structure is common.
[0017]
The feature of this embodiment is that such a parking facility is equipped with a safety device 10, and this safety device 10 changes the lowest point of the cage K for some reason during use of the parking facility. If this is necessary, the operation of the parking facility can be stopped urgently if necessary. Hereinafter, the safety device 10 will be described in detail with reference to FIG.
[0018]
The safety device 10 includes a first optical sensor 11 (position shift detection means), a second optical sensor 12 (emergency detection means), and a control device (not shown). The control device is electrically connected to the sensors 11 and 12 and the driving mechanism of the parking facility, and controls recording of signals and operation of the parking facility based on output signals emitted from the sensors 11 and 12. Is. A microcomputer can be used as such a control.
[0019]
In the present embodiment, a support plate 13 extends from the walking deck R to the lower side of the pallet P at the lowest position, and the sensors 11 and 12 are disposed on the support plate 13. Although it is possible to install the sensors 11 and 12 on the walking deck R or the like, they are installed below the pallet P at the lowest point position so as not to hit a person's foot or the like in a normal state as shown in the figure. It is preferable to do this. The mounting positions of the optical sensors 11 and 12 are portions where the gap between the cage K and the fixed structure (such as the side of the pit Q or the walking deck R) is the narrowest when the cage K is driven to circulate. .
[0020]
With reference to FIG. 3, attachment of each sensor 11 and 12 is demonstrated. The first photosensor 11 has a first light emitting element 14 and a first light receiving element (not shown). The first light receiving element is disposed opposite to the first light emitting element 14 with the cage K interposed therebetween, and the light emitted from the first light emitting element 14 is received by the first light receiving element. The second optical sensor 12 includes a second light emitting element 15 and a second light receiving element (not shown). Similar to the first optical sensor 11, the second light receiving element is disposed opposite to the second light emitting element 15 with the cage K interposed therebetween, and light emitted from the second light emitting element 15 is received by the second light receiving element. It is like that.
[0021]
When the light is interrupted between the first light emitting element 14 and the first light receiving element, the first light receiving element outputs a predetermined signal (hereinafter referred to as “recording signal”). . Further, when light is interrupted between the second light emitting element 15 and the second light receiving element, the second light receiving element outputs a predetermined signal (hereinafter referred to as “emergency signal”). .
[0022]
As shown in FIG. 3, the first light emitting element 14 and the first light receiving element are attached to the support plate 13 via a pair of brackets 16. The second light emitting element 15 and the second light receiving element are attached to the support plate 13 via a pair of brackets 17. In the drawing, only one of the brackets 16 and 17 is shown, but the other bracket is disposed so as to face the brackets 16 and 17, respectively. Furthermore, adjustment members (not shown) can be interposed in the brackets 16 and 17 so that the optical axes 18 and 19 of the light emitting elements 14 and 15 can be adjusted in the vertical direction.
[0023]
In the present embodiment, the optical sensors are employed as the misalignment detection means and the emergency detection means. However, the present invention is not limited to this, and a known sensor such as a limit switch or a proximity switch can be selected as necessary.
[0024]
According to the safety device 10 configured as described above, the following operational effects can be obtained.
[0025]
First, when the parking facility is operated, the cage K is circulated and driven along the arrow 20 in FIG. 2, but when the parking facility is used for a long period of time, the cage K is deformed or the drive mechanism of the parking facility is geometrically connected. There is a possibility that a deviation occurs, and the phenomenon that the cage K deviates from a preset circulation trajectory due to these causes (although it cannot be determined) occurs. This deviation of the circulation trajectory appears as a change in the lowest point of the cage K, and this amount of change is a positional deviation between the lowest point U of the cage K that is actually operating and the reference point S as shown in FIG. It can be grasped by the amount T. Here, the reference point S refers to the lowest point of the cage K set in advance at a stage that has not yet changed due to use, such as when the parking facility is designed, manufactured, or trial run.
[0026]
Then, a deviation amount between the optical axis 18 on the first optical sensor 11 side and the reference point S is set to a predetermined amount B in advance. This fixed amount B can be set to a range that does not immediately impede the operation of the parking facility even when the cage K is displaced. A deviation amount (allowable amount) Z between the optical axis 19 on the second optical sensor 12 side and the reference point S is set in advance. This allowable amount Z is a range where there is a high probability that the cage K interferes with the side of the pit Q, the walking deck R, etc. when the cage K is displaced, that is, the limit of the range in which the displacement can be tolerated. Therefore, it can be set within a range where the operation of the parking facility must be stopped immediately.
[0027]
Suppose that the lowest point U of the cage K is displaced from the reference point S while the parking facility is in operation. When the positional deviation T is equal to or greater than the predetermined amount B, the light emitted from the first light emitting element 14 is blocked by the cage K, whereby the first optical sensor 11 is displaced by the positional deviation of the cage K. The first light receiving element outputs the recording signal while detecting that the amount has reached a predetermined constant amount. The recording signal is received by the control device, and the reception of the recording signal is recorded based on the recording signal.
[0028]
Further, when the positional deviation T reaches the allowable amount Z, the light emitted from the second light emitting element 15 is blocked by the cage K, whereby the second optical sensor 12 can detect the positional deviation amount of the cage K. , The second light receiving element outputs the emergency signal. This emergency signal is received by the control device, and based on this, the operation of the parking facility is urgently stopped.
[0029]
Thus, according to the safety device 10 according to the present embodiment, when the lowest point U of the cage K changes, this can be detected and recorded. Therefore, when the lowest point U of the cage K changes, it is possible to adopt a means of immediately stopping the parking facility immediately. However, if the emergency stop is immediately stopped in this way, there are the following disadvantages. In other words, when the operation is stopped while the parking facility is in use, the worker visits the site, confirms and grasps the situation, and then performs the restoration operation of the parking facility. For this reason, there is an inconvenience that it takes time to recover and the user may be inconvenienced. On the other hand, in the safety device 10 according to the present embodiment, if the change in the lowest point U of the cage K is within a certain range, this is recorded so that the position of the cage K during regular maintenance is recorded. The deviation can be corrected, and interference with the fixed structure of the cage K can be prevented in advance while avoiding the above inconvenience.
[0030]
As the recording means, it is sufficient that the operator can confirm the occurrence of the positional deviation of the cage K during maintenance. For example, a history that the first optical sensor 11 has output a recording signal is used. An indicating indicator or the like can be employed. In this case, there is an advantage that the cage K that requires the investigation and the countermeasure can be immediately identified by performing the recording simultaneously with the cage K from which the recording signal is issued.
[0031]
Further, when the lowest point U of the cage K reaches the allowable amount Z, the operation of the parking facility can be urgently stopped, so that the interference of the cage K with the fixed structure can be reliably prevented.
[0032]
In particular, in the present embodiment, since the optical sensors 11 and 12 using a light emitting element and a light receiving element are employed as the positional deviation detection means and emergency detection means, respectively, the positional deviation detection means and emergency detection means are simplified. There is an advantage that it can be configured inexpensively with a simple structure. Furthermore, by employing the optical sensors 11 and 12, there is an advantage that the safety device 10 can be installed in the parking facility by so-called retrofitting work.
[0033]
【The invention's effect】
As described above, according to the present invention, when the circulation trajectory of the vehicle housing means changes within a predetermined amount, it can be detected and recorded. This has the following advantages. In other words, it is possible to prevent the vehicle housing means from interfering with the fixed structure by immediately stopping the vehicle housing means when a change in the circulation locus of the vehicle housing means is detected. When the emergency stop is performed, the operation is stopped while the parking facility is in use, so that it takes time to restore the parking facility, and the user may be inconvenienced. On the other hand, in the present invention, even if the circulation trajectory of the vehicle housing means changes within the above range, this change can be corrected during regular maintenance by recording this. Therefore, it is possible to prevent the vehicle housing means from interfering with the fixed structure or the like while avoiding the above-described inconvenience due to the emergency stop of the vehicle housing means.
[0034]
Further, when the change in the circulation trajectory of the vehicle accommodation means exceeds the predetermined amount and exceeds the allowable range, the vehicle accommodation means can be urgently stopped. Thereby, interference with the fixed structure etc. of a vehicle accommodation means can be prevented reliably.
[Brief description of the drawings]
FIG. 1 is a front view of an essential part of a parking facility equipped with a safety device according to an embodiment of the present invention.
FIG. 2 is an enlarged view of a main part of a lower end corner of a cage of a parking facility equipped with a safety device according to an embodiment of the present invention.
3 is an X-arrow view in FIG.
FIGS. 4A and 4B are diagrams showing an example of a vertical circulation type multilevel parking facility to which the safety device of the present invention can be applied. FIG. 4A is a front view, FIG. 4B is a side view, and FIG. It is a VV line arrow view of a figure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Safety device 11 1st optical sensor 12 2nd optical sensor 13 Support plate 14 1st light emitting element 15 2nd light emitting element S Reference point T Misalignment U Bottom point B A certain amount of misalignment Z A certain amount of misalignment

Claims (5)

A safety device applied to a vertical circulation type multilevel parking facility in which a vehicle housing means for placing and transporting a vehicle circulates up and down between an uppermost point and a lowermost point,
When the lowest point of the vehicle housing means has a predetermined amount of positional deviation with respect to a preset reference point, a positional deviation detecting means for detecting the positional deviation;
A safety device for a vertical circulation type multi-story parking facility, comprising: emergency detection means for detecting the positional deviation when the positional deviation exceeds an allowable amount. In the safety device of the vertical circulation type multi-story parking facility according to claim 1,
A support plate is disposed below the vehicle accommodating means at the lowest point and below the reference point,
The safety device for a vertical circulation type multi-story parking facility, wherein the displacement detection means and the emergency detection means are supported by the support plate. In the safety device of the vertical circulation type multi-story parking facility according to claim 1 or 2,
The safety device for a vertical circulation type multi-story parking facility, wherein the displacement detection means and the emergency detection means each include a light emitting element and a light receiving element. In the safety device of the vertical circulation type multilevel parking facility according to any one of claims 1 to 3,
A vertical circulation three-dimensional parking facility comprising a recording means for recording the positional deviation based on a positional deviation signal output when the positional deviation detecting means detects the predetermined amount of positional deviation. Safety device. In the safety device of the vertical circulation type multi-story parking facility according to claim 4,
A drive machine that circulates and drives the vehicle housing means and the emergency detection means are electrically connected, and the emergency detection means stops the drive machine by detecting a positional deviation exceeding the allowable amount. A safety device for a vertical circulation type multi-story parking facility, characterized by being configured.

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