WO2006100869A1

WO2006100869A1 - Control operation apparatus and elevator equipped with control operation apparatus

Info

Publication number: WO2006100869A1
Application number: PCT/JP2006/303258
Authority: WO
Inventors: Masakazu Kumagai
Original assignee: Toshiba Elevator Kabushiki Kaisha
Priority date: 2005-03-23
Filing date: 2006-02-23
Publication date: 2006-09-28
Also published as: TW200640773A; JP2006264882A; CN101128382A

Abstract

A control operation apparatus of an elevator comprising a deflection detection optical system (13) including a light projecting section (11) for projecting light along the elevator shaft (1) and a light receiving section (12), a section for detecting the deflection of the elevator shaft (1) according to the light reception results from the light receiving section (12), and a control signal output section outputting a control signal for switching the operation from a normal operation to a control operation according to the detection results of the deflection from the deflection detecting section to an elevator shaft control section.

Description

Specification

Control operation device and elevator equipped with this control operation device

Technical field

TECHNICAL FIELD [0001] The present invention relates to a control operation device and an elevator including the control operation device, and more particularly to a control operation device that controls an elevator during an abnormality, particularly when an earthquake occurs or a strong wind, and an elevator including the control operation device. .

Background art

[0002] “Ministry of Land, Infrastructure, Transport and Tourism, Housing Bureau Building Guidance Division, Japan Building Equipment 'Elevator Center 1, Edited by Japan Elevator Association, Explanation of Elevator Technical Standards, 2002, 2-94, 2-95 As described in “2.7 Control System for Earthquake Control”, the elevator is obliged to install an earthquake detector. If an earthquake is detected by the installed earthquake detector, the elevator will be controlled in the event of an earthquake.

[0003] The seismic detectors that are required to be installed in the elevator vary depending on the function of the elevator, but in general elevators that do not have an express zone, particularly low-speed S-wave detection that detects the main motion (S-wave) with low acceleration. There are two types: a detector and a low S wave detector that detects S waves with low acceleration. The extra low S-wave detector is not a detector that detects all earthquakes with a low acceleration but an earthquake that has an acceleration that requires controlled operation during an earthquake. The low S-wave detector detects earthquakes whose acceleration is greater than a set value (so-called large earthquakes) among earthquakes with accelerations that require controlled operation during earthquakes. Instead of a specific S-wave sensor, use a P-wave sensor that detects the initial tremor (P-wave) of an earthquake.

[0004] By installing these two types of seismic detectors in the elevator, the elevator is controlled during earthquakes according to the detection results of each seismic detector. For example, if an extra low S-wave detector detects an earthquake but the low S-wave detector does not detect an earthquake, the first level of seismic control operation is performed. Specifically, the car that is moving up and down is stopped at the nearest floor, and the car door of the stopped car and the door of the elevator hall on the floor where the car stopped are opened. The stopped car automatically returns to normal operation after a certain period of time. [0005] In addition, when the extra-low S-wave detector detects an earthquake and the low-S wave detector also detects an earthquake, a second-level seismic control operation is performed. Specifically, the car that is moving up and down is stopped at the nearest floor, and the car door of the stopped car and the door of the elevator hall on the floor where the car stopped are opened. The stopped car is maintained in a suspended state after a certain period of time, and after returning adjustment work by a service person, it returns to normal operation.

However, recent earthquake research has revealed that the above-described acceleration detection type earthquake detector may not be able to detect long-period earthquakes with low acceleration. In other words, if the building where the elevator is installed or the elevator hoistway is slowly shaken due to a long-period earthquake, even if the building or the elevator hoistway is deflected greatly, the elevator will not operate in an earthquake and operate normally. Will be.

[0007] If the elevator is operated normally while the building and elevator hoistway slowly shakes and repeats large stagnation, the elevator ropes (including main rope, compensation rope, and governor rope) are in the building. Resonating with the deflection of the elevator hoistway or the elevator hoistway, the resonated rope may hit the car, the suspension weight, or the inner surface of the elevator hoistway, and the elevator equipment may be damaged. If the elevator equipment breaks during normal operation of the elevator, the rider's emergency stop will be caused by the detector power signal that detects the breakage, and the elevator users in the car will be trapped in the car. there is a possibility. Such a phenomenon can also occur when a strong wind blows.

[0008] The present invention has been made to solve the above-described problems. When an abnormality occurs, particularly when the amount of stagnation in the elevator hoistway caused by an earthquake or strong wind exceeds a set value, the elevator is controlled during an earthquake. It is an object of the present invention to provide a control operation device that can be operated and an elevator equipped with the control operation device.

Disclosure of the invention

(1) In order to achieve the above object, the present invention has the following constitutional power. That is,

In an elevator control operation device, a stagnation detection optical system including a light projecting unit and a light receiving unit that project and receive light along an elevator hoistway;

The amount of stagnation that detects the amount of stagnation in the elevator hoistway based on the light reception result in the light receiving unit A detection unit;

A control signal output unit that outputs a control signal for switching from normal operation to seismic control operation based on the result of detection of the stagnation amount in the stagnation amount detection unit.

[0010] (2) Further, the present invention is an elevator including the above-described control operation device.

Brief Description of Drawings

FIG. 1 is a schematic diagram showing an overall configuration of an elevator including an elevator control operation device according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing the elevator control operation apparatus shown in FIG. 1.

FIG. 3 is a schematic diagram showing an overall configuration of an elevator equipped with an elevator control operation apparatus according to a second embodiment of the present invention.

FIG. 4 is a block diagram showing an elevator control operation apparatus according to a third embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

Example 1

As shown in FIG. 1, an elevator including an elevator control operation device according to a first embodiment of the present invention includes an elevator hoistway 1 provided in a building (not shown), And a machine room 2 provided at an upper end portion of the elevator hoistway shaft. In the machine room 2, a control panel 3, a machine beam 4, and a lifting machine 5 are installed, and a driving sheave 6 is connected to a rotating shaft of the lifting machine 5. A main rope 8 with both ends facing downward is wound around the drive sheave 6 and the warp sheave 7 disposed in the vicinity of the drive sheave 6. Both ends of the main rope 8 are suspended in the elevator hoistway 1, and a rider 9 is suspended and supported at one end of the main rope 8, and a suspension weight 10 is suspended at the other end of the main rope 8. Supported.

As shown in FIG. 2, the elevator control operation apparatus according to the first embodiment includes a light projecting unit 11 that projects light and a light receiving unit that receives light projected from the light projecting unit 11. 12 and the amount of stagnation of the elevator hoistway 1 is detected based on the light reception result in the light receiving unit 12. A stagnation amount detection unit 14 and a control signal output unit 16 that outputs a control signal to the elevator lift control unit 15 based on a detection result in the stagnation amount detection unit 14 are provided.

[0015] The elevator is also provided with a general acceleration detection type earthquake detector (not shown). This acceleration detection type seismic detector is connected to the control signal output unit 16, and when a detection signal of the seismic detector power is input to the control signal output unit 16, the control signal output unit 16 sends the elevator lift control unit 15. A control signal is output.

As shown in FIG. 1, the light projecting unit 11 is installed at an upper part in the elevator hoistway 1, and the light receiving unit 12 is installed at an intermediate part in the elevator hoistway 1. The positional relationship between the light projecting unit 11 and the light receiving unit 12 is such that the light receiving unit 12 is positioned on the optical path of the light projected from the light projecting unit 11 when the elevator hoistway 1 is not stagnation. It is. For this reason, when the elevator hoistway 1 is stagnated due to an earthquake or a strong wind, the light receiving state of the light receiving unit 12 is changed by shifting the position of the light receiving unit 12 on the optical path of the light projected from the light projecting unit 11. Since it changes, the light reception result force in the light receiving unit 12 can also detect the stagnation of the elevator hoistway 1. Further, the position where the light projecting unit 11 and the light receiving unit 12 are provided is the maximum due to the amount of deviation of the light path of the light projected from the light projecting unit 11 and directed to the light receiving unit 12 due to the stagnation of the elevator hoistway 1 It is considered as the position. Thereby, the stagnation of the elevator hoistway 1 can be detected most effectively by the optical system 13. The position where the amount of deviation of the light path (light path) in which the light projected from the light projecting unit 11 is directed to the light receiving unit 12 is the maximum due to the stagnation of the elevator hoistway 1 is the elevator hoistway 1 It depends on the length of the building and the natural frequency of the building where the elevator hoistway 1 is installed.

A light shielding body (not shown) that prevents light other than the light projected from the light projecting unit 11 from being received by the light receiving unit 12 is provided around the light receiving unit 12. By providing this light-shielding body, the light receiving unit 12 receives light other than the light projected from the light projecting unit 11, and light from the elevator hoistway 1 is generated and light is projected from the light projecting unit 11 It is possible to prevent erroneous detection that the stagnation of the elevator hoistway 1 does not occur because the light receiving state of the light receiving unit 12 does not change even though the light receiving state of the light has changed. For example, when the elevator is an observation elevator installed facing the outer surface of a building, it is possible to prevent the reception of sunlight by V at the light receiving unit by providing a light blocking body. [0018] It should be noted that the positional relationship between the light projecting unit 11 and the light receiving unit 12 may be reversed upside down. Place it in the middle.

In the first embodiment, the optical system 13 composed of the light projecting unit 11 and the light receiving unit 12 has been described as an example. However, as a member constituting the optical system, the light projecting unit and the light receiving unit are used. A reflector may be added to the part. In this case, the light projecting unit and the light receiving unit are disposed at substantially the same height, and the reflector is disposed at a position where the light projected from the light projecting unit is reflected toward the light receiving unit. For example, in FIG. 1, the light projecting unit and the light receiving unit are arranged at a position where the light projecting unit 11 is arranged, and the light receiving unit 12 is arranged as shown in FIG.

[0020] The stagnation amount detection unit 14 receives the detection result of the light receiving unit 12, and detects the stagnation of the elevator hoistway 1 based on the input detection result. As a stagnation detection method by the stagnation amount detection unit 14, any of the well-known detection methods can be employed. For example, the light-receiving surface of the light receiving unit 12 is divided into four in the shape of a box, and the stagnation of the building occurs. The stagnation of the elevator hoistway 1 can be detected from the change in the ratio of the amount of light received at the light receiving surface.

The control signal output unit 16 outputs a control signal to the elevator up / down control unit 15 based on the detection result from the stagnation amount detection unit 14. The output format of the control signal may be whether the control signal is output or not (ON or OFF force), or depending on the detection result (the amount of stagnation in the elevator hoistway 1) (for example, the riding level). A control signal of a first level that slows down the car 9 and a second level that stops the car 9 may be output.

In such a configuration, during normal operation in which no earthquake occurs, the light projecting unit 11 and the light receiving unit 12 are positioned on the same optical path, and the light projected from the light projecting unit 11 is received by the light receiving unit. Light is received at a position centered on the center of the light-receiving surface divided into 12 sections. In such a state, the detection of the amount of stagnation in the stagnation amount detection unit 14 is “0”, and no control signal is output from the control signal output unit 16! /.

[0023] When an earthquake occurs, if the earthquake is not a long-period earthquake and has an acceleration exceeding a set value, the earthquake is detected by an acceleration detection type earthquake detector. When this detection is performed, the control signal output unit 16 is controlled based on the detection result. Then, the control signal is output to the elevator lift control unit 15 and the elevator is controlled during the earthquake.

On the other hand, the earthquake that has occurred is a long-period earthquake, and even if the amplitude is large, the acceleration is small and may not be detected by an acceleration detection type earthquake detector. In such a case, if the elevator hoistway 1 crawls due to the shaking of the earthquake, the position of the light receiving unit 12 is shifted from the light path of the light projected from the light projecting unit 11, and the light receiving state of the light receiving unit 12 is By this change, the stagnation amount detector 14 can detect the stagnation amount of the elevator hoistway 1. Then, when the detection result in the stagnation amount detection unit 14 is input to the control signal output unit 16 and the detection result detected by the stagnation amount detection unit 14 exceeds the set value, the control signal output unit 16 sends it to the elevator. A control signal is output to the lift control unit 15 and the elevator is operated when an abnormality occurs, that is, during an earthquake.

[0025] Therefore, by providing the elevator control operation apparatus according to the first embodiment, the acceleration detection type seismic detector could not detect the acceleration and caused a long-period earthquake. The stagnation of the elevator hoistway 1 that occurs can be detected, and the elevator can be quickly controlled during an earthquake when a long-period earthquake with a low acceleration occurs.

[0026] As an output format of the control signal output from the control signal output unit 16, a different level (for example, the car 9) is selected according to the detection result of the stagnation amount detection unit 14 (the stagnation amount of the elevator hoistway 1). If a control signal of the first level to slow down and the second level to stop the car 9) is output, the elevator will continue to operate as much as possible even if the earthquake occurs. To ensure the safety of the time !, two requests can be achieved.

[0027] It should be noted that the control signal output unit 16 may immediately output a control signal to the elevator lift control unit 15 when a detection result exceeding the set value is input from the stagnation amount detection unit 14. However, if the input force of the detection result that exceeds the set value from the stagnation amount detection unit 14 exceeds multiple times (for example, 10 times) within a certain time (for example, 30 seconds), a control signal is output. You may do it. As a result, erroneous detection due to some cause can be prevented. Long-period earthquakes do not have the property of abruptly damaging buildings and elevator hoistway 1, so Even if the time from seismic detection to control operation during an earthquake is 30 seconds later, there will be no safety problems.

[0028] If the stagnation amount detection unit 14 detects the stagnation amount at regular time intervals (for example, every 2 to 3 minutes), and the detection result by the stagnation amount detection unit 14 exceeds the set value The amount of stagnation may be detected continuously for a predetermined time (for example, 5 minutes). Long-period earthquakes have no characteristics when the building or elevator hoistway 1 is suddenly damaged, so even if the amount of stagnation is detected at regular intervals, the safety against long-period earthquakes is reduced. The problem does not arise. Such detection at regular time intervals can be performed by intermittently projecting light from the light projecting unit 11, and power consumption compared to the case where light is constantly projected from the light projecting unit 11. Can be reduced.

Example 2

[0029] A second embodiment of the present invention will be described with reference to FIG. In the second embodiment and subsequent embodiments, the same components as those described in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

[0030] The basic configuration of the second embodiment is the same as that of the first embodiment. The second embodiment is different from the first embodiment in that the light projecting unit 11 is installed in the machine room 2. On the bottom surface of the machine room 2, a light transmission window 17 is formed for allowing the light projected from the light projecting unit 11 to travel toward the light receiving unit 12.

[0031] According to the elevator control and operation apparatus of the second embodiment, as with the elevator control and operation apparatus of the first embodiment, the acceleration is small and cannot be detected by the acceleration detection type earthquake detector. ! /, Long-period earthquakes can be detected, and elevators can be controlled during such earthquakes.

[0032] According to the second embodiment, the light projecting unit 11 is installed in the machine room 2, and it is easy for an operator to enter the machine room 2. Adjustment work and maintenance work can be performed easily.

[0033] When the light projecting unit 11 and the light receiving unit 12 are installed upside down, the light receiving unit 12 is installed in the machine room 2.

[0034] As described in the first embodiment, a reflector is additionally provided between the light paths of the light projecting unit and the light receiving unit. When the optical system is installed, the light projecting unit and the light receiving unit can be installed in the machine room 2, and the adjustment and maintenance work between the light projecting unit and the light receiving unit can be performed more easily. Can do.

In the second embodiment, the case where the machine room 2 is located at the upper end portion of the elevator hoistway 1 has been described as an example. However, the machine room may be located at the lower end portion of the elevator hoistway 1. Yes.

Example 3

[0036] A third embodiment of the present invention will be described with reference to FIG. The elevator control operation apparatus according to the third embodiment has an anemometer 18 as shown in FIG. 4, and the anemometer 18 is connected to the control signal output unit 16. The detection result of the anemometer 18 is input from the anemometer 18 to the control signal output unit 16, and a control signal is output from the control signal output unit 16 to the elevator lift control unit 15 according to the input detection result.

In such a configuration, according to the elevator control operation apparatus of the third embodiment, as described in the first and second embodiments, it is caused by a long-period earthquake or strong wind with a small acceleration. In addition to being able to control the elevator during earthquakes when detecting stagnation in the elevator hoistway 1, if strong wind is detected by the anemometer 18, before detecting stagnation in the elevator hoistway 1 due to the strong wind The elevator can be controlled during an earthquake.

[0038] When outputting a control signal from the control signal output unit 16 based on the detection result of the anemometer 18, it may be output whether the control signal is output (ON or OFF), or the detection of the anemometer 18 Control signals of different levels (for example, a first level for decelerating the car 9 and a second level for stopping the car 9) may be output based on the result.

[0039] In addition, when outputting the control signal from the control signal output unit 16 based on the detection result of the anemometer 18, the detection result of the anemometer 18 exceeds a set value a plurality of times within a predetermined time. It may be configured to output a control signal. As a result, it is possible to prevent the elevator from being controlled during an earthquake due to an instantaneous gust of wind.

[0040] It should be noted that the elevator control operation device according to each of the above-described embodiments will be described by taking as an example the case where one elevator is controlled during an earthquake by a control signal output from one control signal output unit 16. However, one control signal output unit Control signal that also outputs 16 forces Thus, a configuration may be adopted in which a plurality of elevators provided in the same building are controlled in an earthquake. By adopting such a configuration, the number of installed optical systems 13, stagnation amount detection units 14 and control signal output units 16 in one building can be reduced, and the cost can be reduced.

[0041] Further, the control signal output from one control signal output unit 16 may be configured to operate a plurality of elevators that are installed in a building in a specific area during an earthquake. With such a configuration, safety against earthquakes and strong winds in a specific area can be enhanced at a low cost.

Industrial applicability

[0042] According to the present invention, the acceleration is small! / During the occurrence of long-period earthquakes and strong winds! The amount of stagnation in the elevator hoistway is set to the set value due to the earthquakes and strong winds. When it reaches, it can be reliably detected that the amount of stagnation in the elevator hoistway has reached the set value, and the elevator can be promptly controlled during an earthquake.

Claims

The scope of the claims

[1] a stagnation detection optical system including a light projecting unit and a light receiving unit for projecting and receiving light along the elevator hoistway;

A stagnation amount detection unit that detects a stagnation amount of the elevator hoistway based on a light reception result in the light receiving unit;

A control operation device for an elevator, comprising: a control signal output unit that outputs a control signal for switching from normal operation to control operation to the elevator lift control unit based on a detection result of the stagnation amount in the stagnation amount detection unit.

2. The elevator control operation device according to claim 1, wherein the light projecting unit or the light receiving unit is installed in a machine room provided at an upper end or a lower end of the elevator hoistway.

[3] The elevator control operation device according to [1] or [2], further comprising a light blocking member that prevents light other than light projected from the light projecting unit from being received by the light receiving unit.

[4] The optical system may be provided at a position where a deviation amount of an optical path of light projected from the light projecting unit and traveling toward the light receiving unit is maximized due to the stagnation of the elevator hoistway. The elevator control operation device according to claim 1 or 2.

[5] The control signal output unit outputs a control signal based on a detection result of the stagnation amount detection unit that detects that the stagnation amount of the elevator hoistway exceeds a set value a plurality of times within a predetermined time. The elevator control operation device according to claim 1 or 2.

6. The control signal output unit according to claim 1, wherein the control signal output unit outputs a control signal of a different level according to a stagnation amount of the elevator hoistway detected by the stagnation amount detection unit. Control operation device.

[7] The stagnation amount detection unit detects the stagnation amount at regular time intervals, detects the stagnation amount exceeding the set value, and continues for a predetermined time. The elevator control operation device according to claim 1 or 2, wherein detection is performed.

8. The elevator control operation device according to claim 1 or 2, wherein the control signal output unit further outputs a control signal to the elevator lift control unit based on a detection result by an anemometer.

[9] The control signal output unit is provided for a plurality of elevators provided in the same building. The elevator control operation device according to claim 1 or 2, which outputs a control signal.

The elevator control operation device according to claim 1 or 2, wherein the control signal output unit outputs a control signal to a plurality of elevators provided in a building in a specific area. An elevator comprising the control operation device according to claim 1.