JP2009096580A - Elevator inspection equipment - Google Patents

Abstract

An elevator inspection device capable of performing inspection and restoration after an earthquake without requiring the work of a professional engineer with a relatively inexpensive and simple configuration.
SOLUTION: A car placed in a hoistway 1 of an elevator, and a car side door 3 that can be opened and closed at the entrance of the car, and a car side door. By measuring the fluctuation range of the path length of the reflection type non-contact reversing sensor 7 functioning as an object sensor and the signal path 8 emitted by the reflective non-contact reversing sensor with reference to normal time, the position of the car can be determined. A car position detecting means for detecting the fluctuation range; and an influence determining means for judging the influence of the car based on the fluctuation range of the car position detected by the car position detecting means.
[Selection] Figure 3

Description

  The present invention relates to an elevator inspection device.

In the conventional elevator inspection device, the earthquake operation device includes a first seismic detector that operates with a relatively small vibration exceeding the first level and a vibration that exceeds the second level greater than the first level. A second seismic sensor that operates, and when only the first seismic sensor operates, the car is temporarily stopped at the nearest floor, and after a certain period of time, the first seismic sensor The operation is automatically returned to resume the operation of the elevator, and when the second seismic sensor is operated, the operation of the elevator is stopped after stopping at the nearest floor, and the second seismic sensor Only when the abnormality detection circuit determines that continuous operation is possible using the abnormality detection light sensor and the abnormality detection pressure sensor, and the abnormality detection circuit determines that there is no abnormality. In addition, it is known that a continuous operation circuit that automatically restores the second seismic detector is known after the elevator jogging operation (low speed up and down operation in a small range) is confirmed to be normal. (For example, refer to Patent Document 1).
Further, in a conventional elevator door, for example, a projector and a light receiver (non-contact type optical sensor) that are arranged to face each other and detect an obstacle are provided between the car door and the car pillar, A device configured to perform a safety ensuring operation when an obstacle is detected is generally known (see, for example, Patent Document 2).

Japanese Patent Laid-Open No. 11-171423 JP 09-165176 A

  However, in the conventional elevator inspection device disclosed in Patent Document 1, it is necessary to provide two seismic detectors, an optical sensor and a pressure sensor separately only for the detection of earthquakes and the inspection and restoration after the occurrence of an earthquake. Therefore, it is expensive and the configuration becomes complicated, and each elevator unit is individually inspected and restored after the earthquake, and multiple elevator units are considered from an overall perspective. However, since inspection and recovery are not efficient, there is a problem that the user may be inconvenienced.

The present invention has been made to solve the above-described problems. The first object of the present invention is to perform inspection and inspection after an earthquake without requiring the work of an expert engineer with a relatively inexpensive and simple configuration. An elevator inspection device that can be restored is obtained.
The second purpose is to obtain an elevator inspection device that can perform inspections and restoration after an earthquake without causing inconvenience to the user, considering a plurality of elevator units from an overall viewpoint. It is.

  The elevator inspection device according to the present invention is mounted on the car-side door that is freely opened and closed in the elevator hoistway, the car-side door that can be opened and closed at the entrance of the car, and the car-side door. By measuring the fluctuation range of the path length of the signal path generated by the reflective non-contact reversing sensor functioning as an obstacle sensor during normal operation and the reflective non-contact reversing sensor with respect to normal time A car position detecting means for detecting a fluctuation range of the position of the car, and an influence determination for determining an influence received by the car based on a fluctuation range of the position of the car detected by the car position detecting means. Means.

  The present invention relates to an elevator inspection device, a car arranged in a hoistway of an elevator so as to be movable up and down, a car side door provided openably and closably at an entrance of the car, and attached to the car side door, By measuring the fluctuation width of the path length of the signal path emitted by the reflective non-contact reversing sensor that functions as an obstacle sensor during normal operation and the reflective non-contact reversing sensor based on normal time, Car position detection means for detecting a fluctuation range of the position of the car, and an influence determination means for determining an influence received by the car based on the fluctuation range of the position of the car detected by the car position detection means; Because of the configuration with, an elevator that can be inspected and restored after an earthquake without requiring the work of a specialist engineer with a relatively inexpensive and simple configuration An effect that can be obtained inspection device.

Embodiment 1 FIG.
FIG. 1 relates to Embodiments 1 to 3 of the present invention, and is a block diagram showing an overall configuration of an elevator inspection device.
FIGS. 2 to 5 relate to Embodiment 1 of the present invention. FIG. 2 is a plan view of the elevator inspection device, FIG. 3 is a front view of the elevator inspection device, and FIG. FIG. 5 is a timing chart in the case where the car vibration at the time of the occurrence of the earthquake is outside the allowable range.
In the figure, reference numeral 1 denotes an elevator hoistway. A car 2 is disposed in the hoistway 1 so as to be movable up and down. A pair of left and right car side doors 3 is provided at the entrance of the car 2 so as to be openable and closable. A door control device that mainly controls the operation of the car side door 3 above the car 2. 4 is installed. A landing 5 on which a user gets on and off is provided with a pair of left and right landing doors 6 for opening and closing the landing doorway.
Reference numeral 7 denotes a pair of reflective non-contact reversing sensors attached to the left and right car-side doors 3. One of the reflective non-contact reversing sensors 7 is, for example, the right car side Near the upper side of the door 3, the sensor portion is attached to the left side of the car-side door 3 so as to protrude toward the landing 5, and the other reflection type non-contact reversing sensor 7. Is mounted on the left side of the car-side door 3 so as to protrude toward the landing 5 with its sensor portion directed toward the car-side door 3 on the right side.
8 is a path of a signal emitted from the sensor unit of the reflection type non-contact reversing sensor 7, and the signal emitted from the sensor unit is reflected on the inner wall surface of the hoistway 1 facing the sensor unit. It shows how it returns. As described above, the pair of reflective non-contact reversing sensors 7 are provided on the left and right car-side doors 3 at positions that are staggered in the vertical direction, and thus are emitted from the respective sensor units. The signal paths 8 do not overlap or intersect at normal times.

Next, the operation of this embodiment will be described.
First, the path length of the signal path 8 at the normal time is measured and stored in advance by the door control device 4.
During normal operation, the reflection type non-contact reversing sensor 7 functions as an obstacle sensor. During the door closing operation, the signal is reflected at a shorter distance than normal, and the signal path 8 is measured and stored during normal operation. When a short path length is measured, the door control device 4 recognizes that an obstacle exists and reverses the car-side door 3 (normal operation mode).
On the other hand, when an earthquake occurs, an earthquake early warning provided by the Japan Meteorological Agency is received to enter the earthquake operation mode, and the car-side door 3 is opened after the car 2 is stopped to the nearest floor. The user who is in the car 2 is evacuated to the outside of the car 2. Thereafter, when the seismic wave arrives and the ground motion starts, the car position detection means 9 provided in the door control device 4 uses the stored normal path length as a reference for the route of the signal route 8 during the ground motion. By measuring the fluctuation range of the length, the fluctuation range of the position in the left-right direction of the car 2 during the vibration is detected.
And the influence determination means 10 provided in the said door control apparatus 4 is based on the fluctuation range of the position in the left-right direction of the said car 2 in the left-right direction during the vibration which the said car position detection means 9 detected. Determine the impact of the earthquake.

In this determination, when the fluctuation range of the position of the car 2 is within a predetermined allowable range, after the seismic motion is stopped, the door control device 4 is provided with a control panel 11 installed above the hoistway 1. A normal operation mode return signal is transmitted to the automatic recovery (FIG. 4).
On the other hand, when the fluctuation range of the position of the car 2 exceeds a predetermined allowable range, the door control device 4 immediately transmits a stop mode signal to the control panel 11 to stop the elevator, and the control panel The remote monitoring device 12 in 11 sends a signal to the information center 13, which is a facility for remotely monitoring the status of the elevator, to request the arrangement of a specialist engineer for inspection and restoration work (FIG. 5). .

In the elevator inspection apparatus configured as described above, the fluctuation range of the signal path length during the earthquake is calculated by using the reflective non-contact reversing sensor that functions as an obstacle sensor during normal operation. When the car range is detected, the fluctuation range of the car position is detected, and the influence of the car on the basis of the earthquake is determined based on this position fluctuation range. Can perform inspections and restoration after an earthquake without requiring specialist work, and if the impact on the car exceeds the prescribed tolerance range, the elevator should be stopped immediately. A signal can be issued to the information center requesting the arrangement of a professional engineer for inspection and restoration work.
The reflective non-contact reversing sensor 7 may be an optical sensor such as a photoelectric device, or an ultrasonic sensor or the like.

Embodiment 2. FIG.
FIGS. 6 to 8 relate to the second embodiment of the present invention. FIG. 6 is a plan view showing a state in which the position of the car in the left-right direction is detected in the elevator inspection device, and FIG. FIG. 8 is a plan view showing a state in which the position in the front direction of the car is detected in the device, and FIG. 8 is a plan view showing a state in which the position in the depth direction of the car is detected in the elevator inspection device. In FIGS. 6 to 8, only one of the pair of reflective non-contact reversing sensors is shown for easy understanding. Further, in these drawings, the same reference numerals as those in FIGS.
In the second embodiment described here, in addition to the configuration of the first embodiment described above, a reflector is additionally provided on the signal path, and the car in the front direction and the depth direction from the landing to the car. A pair of rails that stand up in the car and the hoistway and guide the car by detecting the position of the car in the left-right direction, the near side direction, and the depth direction. This is to check the distortion state (not shown).
That is, on both sides of the car 2, the reflectors 14 are mounted so that the position can be adjusted to a position on the signal path 8 and a position off the signal path 8, and the angle of the reflecting surface can be adjusted. However, the other configurations are the same as those of the first embodiment.

Detection of the position of the car 2 in the left-right direction and determination of the influence of the car 2 caused by the earthquake based on the fluctuation range of the position of the car 2 in the left-right direction during vibration are performed by the reflector 14. The operation is performed in the same manner as in the first embodiment described above while being adjusted to be positioned away from the signal path 8 (FIG. 6).
In the determination by the influence determination means 10, when the fluctuation range of the position of the car 2 is within a predetermined allowable range, automatic recovery is performed after the seismic motion is stopped.
On the other hand, when the fluctuation range of the position of the car 2 exceeds a predetermined allowable range, after the elevator is stopped, the position of the car in the front direction and the depth direction is detected as described below. Then, the distortion state of the car 2 and the rail is inspected.

The position of the car 2 in the front direction from the landing 5 toward the car 2 is detected by, for example, the signal path generated by the reflective non-contact reversing sensor 7 on the right side of the reflecting plate 14 on the left side. 8 and the reflective surface is located from the right back to the left front from the landing 5 toward the car 2, and the reflective surface and the reflective non-contact reversal on the right side. This is performed in a state where the angle formed by the line connecting the sensor portion of the sensor 7 to the reflecting plate 14 is 45 degrees (FIG. 7).
That is, first, a signal emitted from the reflection type non-contact reversing sensor 7 is reflected by the reflecting plate 14 and reflected by the inner wall surface on the near side of the hoistway 1 to return to the sensor unit. The path length of the signal path 8 at the normal time is measured and stored in advance by the door control device 4. Then, after the earthquake occurs, the car position detection means 9 provided in the door control device 4 measures the change in the path length of the signal path 8 during the vibration with reference to the stored normal path length. Thus, a change in the position of the car 2 in the front direction due to the earthquake is detected.

The position of the car 2 in the depth direction from the landing 5 toward the car 2 can be detected by, for example, the reflection type non-contact reversing sensor 7 on the left side reflecting plate 14 emitting the right side reflection plate 14. The reflective surface is located on the signal path 8 and the reflective surface is located from the left back to the right front from the landing 5 toward the car 2, and the reflective surface and the reflective This is performed in a state where the angle between the sensor portion of the contact reversal sensor 7 and the line connecting the reflection plate 14 is adjusted to 45 degrees (FIG. 8).
That is, first, a signal emitted from the reflection type non-contact reversing sensor 7 is reflected by the reflecting plate 14, reflected by the inner wall surface on the depth side of the hoistway 1, and returned to the sensor unit. The path length of the signal path 8 at the normal time is measured and stored in advance by the door control device 4. Then, after the earthquake occurs, the car position detection means 9 provided in the door control device 4 measures the change in the path length of the signal path 8 during the vibration with reference to the stored normal path length. Thus, a change in the position of the car 2 in the depth direction due to the earthquake is detected.

Based on the change in the position of the car 2 in the left-right direction, the near side direction, and the depth direction before and after the earthquake detected by the car position detection means 9 as described above, the influence determination means 10 2 and the rails are inspected for distortion. If no abnormality is found as a result of the inspection, the elevator is automatically restored. If an abnormality is found, the information center 13 is inspected and repaired by a professional engineer. Issue a signal to request the arrangement.
The operation in the normal operation mode is the same as that in the first embodiment.

  In the elevator inspection apparatus configured as described above, in addition to being able to achieve the same effects as those of the first embodiment, the signal path generated by the reflective non-contact reversing sensor is folded using a reflector. By detecting the position of the car in front and in the depth direction by bending it and automatically checking the distortion status of the car and rail, the fluctuation range of the car position during an earthquake exceeds the specified allowable range. Even if there is no abnormality in the car and rails, if there is no abnormality found in the car and rails, inspections and recovery after the earthquake can be performed without the need for specialist engineers. When an abnormality is discovered, it is possible to promptly send a signal to the information center requesting the arrangement of a specialist engineer for inspection and restoration work.

Here, the operation of detecting the position of the car 2 in the reflective non-contact reversing sensor 7 on the right side and the reflecting plate 14 on the left side has been described. However, the reflective non-contact reversing sensor 7 on the left side has been described. In addition, the position of the car 2 can be detected by the same operation in the reflector 14 on the right side.
Further, the present embodiment is also useful for confirming the installation accuracy at the time of installation and confirming the distortion status of the car and rails at the time of maintenance, and these confirmation operations can be performed automatically.

Embodiment 3 FIG.
In the third embodiment described here, in addition to the configuration of the first embodiment or the second embodiment described above, an influence rank determination for determining the rank between elevator units with respect to the influence degree due to an earthquake for each of a plurality of elevator units. Additional means are provided so that the priority of inspection and recovery work after an earthquake can be determined based on the ranking of the degree of influence.
That is, the control panel 11 receives from the car position detection means 9 and the influence determination means 10 provided in the door control device 4 of each elevator car due to the position of the car 2 for each elevator car and the earthquake. The degree-of-impact ranking determination means 15 for receiving the information on the degree of influence and the information on the state of distortion of the car 2 and the rail and determining the rank of the degree of influence caused by the earthquake among the elevator units among the elevator units. The other configurations are the same as those in the first embodiment or the second embodiment.

  In the elevator inspection apparatus configured as described above, in addition to being able to achieve the same effects as those of the first or second embodiment, the earthquake is based on the order determined by the influence degree determining unit. Determine the priority order of inspection and restoration work later, for example, by making the elevators available as soon as possible by inspecting and restoring them in order from the elevators with the least impact of the earthquake It is possible to perform inspections and recovery after an earthquake without causing inconvenience to the user from a general viewpoint.

Embodiment 4 FIG.
In the fourth embodiment described here, the configuration of the first to third embodiments described above is modified by modifying an existing elevator equipped with a reflective non-contact reversing sensor as an obstacle sensor. It is intended to provide.
For example, when the modification is performed so as to have the configuration of the first embodiment, the fluctuation range of the path length of the signal path that is provided in the door control device and is based on the path length of the signal path at the normal time stored in advance. The car position detection means for detecting the fluctuation range of the car position by measuring the car position, and the car is detected by the earthquake based on the fluctuation range of the car position detected by the car position detection means. An influence determining means for determining the received influence is additionally provided. In this case, the operation of the elevator inspection device after refurbishment at the normal time and when an earthquake occurs is the same as that in the first embodiment.
Further, in the case where the modification is made so as to have the configuration of the second embodiment, the modification is made so as to have the configuration of the first embodiment, and the positions on the signal path are arranged on both sides of the car. In addition, a reflecting plate attached to be able to adjust the position at a position deviating from the signal path and to adjust the angle of the reflecting surface is additionally provided. In this case, the operation of the elevator inspection device after renovation is the same as that of the second embodiment described above at the normal time and when an earthquake occurs.
And when renovating so as to have the configuration of the third embodiment, the car position of each elevator is detected after the renovation so as to have the configuration of the first embodiment or the second embodiment described above. By receiving information on the position of the car for each elevator and the degree of influence received by the earthquake and information on the distortion status of the car and rails from the means and influence judging means, the degree of influence received by each elevator In addition, an influence rank determination means for determining the rank between elevator units is provided in addition to the control panel. In this case, the operation of the elevator inspection device after refurbishment at the normal time and when an earthquake occurs is the same as that of the third embodiment.

  As described above, refurbishment that gives the same effects as those of the first to third embodiments while effectively using the reflective non-contact reversing sensor originally provided in the existing elevator as an obstacle sensor Can be applied.

It is a block diagram which shows the whole structure of the elevator inspection apparatus regarding Embodiment 1 to Embodiment 3 of this invention. It is a top view of the elevator inspection apparatus regarding Embodiment 1 of this invention. It is a front view of the elevator inspection apparatus regarding Embodiment 1 of this invention. It is a timing chart in case the car vibration at the time of the earthquake occurrence regarding Embodiment 1 of this invention is in an allowable range. It is a timing chart in case the car vibration at the time of the earthquake occurrence regarding Embodiment 1 of this invention is outside an allowable range. It is a top view which shows the state which has detected the position in the left-right direction of a passenger car in the elevator inspection apparatus regarding Embodiment 2 of this invention. It is a top view which shows the state which has detected the position in the near direction of a passenger car in the elevator inspection apparatus regarding Embodiment 2 of this invention. It is a top view which shows the state which has detected the position in the depth direction of a car in the elevator inspection apparatus regarding Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Car 3 Car side door 4 Door control device 5 Hall 6 Landing side door 7 Reflective non-contact reversing sensor 8 Signal path 9 Car position detection means 10 Influence judgment means 11 Control panel 12 Remote monitoring device 13 Information center 14 Reflector 15 Impact degree ranking judgment means

Claims (5)

A car that can be moved up and down in the elevator hoistway,
A car-side door that is freely opened and closed at the entrance of the car;
A reflective non-contact reversing sensor attached to the car door and functioning as an obstacle sensor during normal operation;
A car position detecting means for detecting a fluctuation width of the position of the car by measuring a fluctuation width of a path length of a signal path emitted by the reflective non-contact reversing sensor with respect to a normal time; and
An elevator inspection apparatus comprising: an influence determination unit that determines an influence received by the car based on a fluctuation range of the position of the car detected by the car position detection unit. A car that can be moved up and down in the elevator hoistway,
A car-side door that is freely opened and closed at the entrance of the car;
A reflective non-contact reversing sensor attached to the car door and functioning as an obstacle sensor during normal operation;
A car position detecting means for detecting a fluctuation width of the position of the car by measuring a fluctuation width of a path length of a signal path emitted by the reflective non-contact reversing sensor with respect to a normal time; and
A reflector that can be adjusted to a position on the signal path and a position off the signal path, and the angle of the reflecting surface can be adjusted; and
Based on the fluctuation range of the position of the car detected by the car position detection means, the influence received by the car is determined, and the fluctuation of the position of the car detected by the car position detection means in the left-right direction From the width and the fluctuation width in at least one of the forward direction and the depth direction of the position of the car, at least one of the rail and the car that is erected in the hoistway and guides the car An elevator inspection device comprising: an influence determination unit that determines a distortion state.   In the event of an earthquake, after stopping the car to the nearest floor, opening the car side door and evacuating the user who is on the car out of the car When the influence determining means determines that the fluctuation range of the position of the car detected by the car position detecting means is within a predetermined allowable range, the elevator is automatically restored to normal operation after the earthquake motion has subsided. And when the influence determining means determines that the fluctuation range of the position of the car detected by the car position detecting means exceeds a predetermined allowable range, the operation of the elevator is stopped, and The elevator according to claim 1, characterized in that a signal is sent to an information center, which is a facility for remotely monitoring the situation, requesting the arrangement of a specialist engineer for inspection and restoration work. Over of the inspection apparatus.   In the event of an earthquake, after stopping the car to the nearest floor, opening the car side door and evacuating the user who is on the car out of the car When the influence determining means determines that the fluctuation range of the position of the car detected by the car position detecting means is within a predetermined allowable range, the elevator is automatically restored to normal operation after the seismic motion is stopped. And when the influence determination means determines that the fluctuation range of the position of the car detected by the car position detection means exceeds a predetermined allowable range, the influence determination means causes the rail and the ride to be Judgment of at least one of the car's distortion situation, if no abnormality is found in the distortion situation, after the earthquake motion has subsided, the elevator is automatically restored to normal operation, and the distortion situation is abnormal When found, stop the elevator operation and issue a signal to the information center, which is a facility that remotely monitors the status of the elevator, requesting the arrangement of a specialist engineer for inspection and restoration work. The elevator inspection device according to claim 2, wherein:   In an elevator having a plurality of elevator cars, information on the position of the car for each elevator car from the car position detection means and the influence determination means provided in each elevator car, the degree of influence the car has received due to the earthquake The ranking of the degree of influence of each elevator unit affected by the earthquake in response to at least one input from among the information on the above, the information on the strain state of the car, and the information on the rail strain state The elevator inspection apparatus according to any one of claims 1 to 4, further comprising an influence degree rank determination unit that determines whether the

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