JP2013159479A - Speed detection device, elevator device with speed detection device and method for inspecting elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that, when operations of an emergency stop device of an elevator device are inspected, a limit value of a dangerous speed is set to be larger than a rated speed, a speed which is up to 1.4 times as high as the rated speed needs to be reproduced, and it is difficult for the actually-installed elevator device to reproduce an abnormal state by moving a cage at such a high speed.SOLUTION: A speed detection device is provided with a speed increasing mechanism and detects a moving speed of a cage in an inspection operation by increasing the speed. Therefore, a dangerous speed can be easily reproduced or a pseudo-dangerous speed can be reproduced by an actually-installed elevator device so that a speed detection device of the elevator device can be easily inspected in a short time.

Description

  The present invention relates to an elevator apparatus and an inspection method for an elevator apparatus, and more particularly, a speed detection device provided in a car, and an elevator apparatus that can easily inspect an abnormality countermeasure device for a car using the speed detection device and the same. The present invention relates to an inspection method for an elevator apparatus.

  In general, an elevator apparatus is provided with an abnormality countermeasure device when the car is raised or lowered at an abnormal speed, for example, an emergency stop device, a hoisting machine brake mechanism, or the like. In the following, the emergency stop device will be described, but in order to operate this emergency stop device, a speed detection device that measures the descending speed of the car is necessary, and this speed detection device is provided on the outer ceiling of the car. Yes.

  As a specific speed detection device, Japanese Patent Application Laid-Open No. 2011-140361 (Patent Document 1) uses a rotation of a roller shaft of a roller that rotates in a guide rail laying direction in contact with a guide rail on a car. A car speed detecting means for detecting the raising / lowering speed of the car is shown.

  Further, International Publication WO 2007/063574 (Patent Document 2) detects the moving speed of a car from a speed detecting device using a roller provided on the car, and performs an abnormal run where the elevator car cannot be controlled. Means for detecting and activating a braking device such as a brake or emergency stop device are shown.

JP 2011-140361 A International Publication No. WO2007 / 063574

  In the elevator apparatus, it is necessary to inspect whether an abnormality countermeasure device such as an emergency stop device provided in the elevator apparatus operates correctly at a predetermined speed when the elevator apparatus is newly installed or maintenance is performed.

  However, a method for inspecting the operation of the speed detection device by accelerating the car to an abnormal speed or a dangerous speed (hereinafter referred to as a dangerous speed) with an actually installed elevator apparatus has not been established.

  As one method, in Europe and the like, it has been proposed to check by actually moving the car at high speed. However, for example, when checking the operation of an emergency stop device, which is one of the countermeasures against elevator equipment, the critical speed limit value is set larger than the rated speed, and the maximum speed is 1.4 times the rated speed. Need to do. It is difficult for an elevator apparatus that is actually installed to reproduce the abnormal state by moving the car at such a high speed.

  Another method is to remove the speed governor, which is a speed detector that measures the speed of the car at the time of inspection, from the car. A method of checking by reproducing the state has been proposed. However, in this method, it takes time to attach and detach the governor, and it takes more time to inspect it, which is not practical.

  It is an object of the present invention to provide an elevator apparatus and an inspection method for an elevator apparatus that can easily inspect a car abnormality countermeasure apparatus with an actually installed elevator apparatus and can perform an inspection in a shorter time.

The present invention is characterized in that, as a speed detecting device, a rotating body that rotates in contact with a guide rail, a rotating speed detecting means that detects the rotating speed of the rotating body, and the rotating body and the rotating speed detecting means are transmitted and not transmitted. A rotation transmission shaft that can be selected in a state, a rotation body and a rotation speed detection means that can be selected between a transmission state and a non-transmission state, and a speed increasing mechanism that increases the rotation speed of the rotation body and transmits it to the rotation speed detection means. Be prepared,
When the car is normally operated, the speed increasing mechanism is set to the non-transmission state, and the rotation of the rotating body is transmitted to the rotation speed detecting means via the rotation transmission shaft. When the car is inspected, the rotation transmission shaft is In addition to the non-transmission state, the rotation of the rotating body is accelerated and transmitted to the rotation speed detecting means via the speed increasing mechanism.

  According to the present invention, a speed increasing mechanism is provided in the speed detecting device so that the moving speed of the car is increased and detected during the inspection operation. Therefore, the dangerous speed can be easily simulated using the actually installed elevator device. Thus, the operation state of the abnormality countermeasure device provided in the elevator device can be inspected easily and in a short time.

It is a perspective view which shows the outline of the speed detection apparatus used for the elevator apparatus which becomes one Example of this invention. It is a side view at the time of the driving | running | working of the governor which is a speed detection apparatus with which the elevator apparatus which becomes one Example of this invention is equipped. It is a side view at the time of the test | inspection of the speed governor which is a speed detection apparatus with which the elevator apparatus which becomes one Example of this invention is equipped. It is explanatory drawing which shows a state when the inspector is examining the speed governor which is the speed detection apparatus with which the elevator apparatus which becomes one Example of this invention is equipped. It is the schematic which shows the screen of the terminal for a test | inspection at the time of a successful test | inspection when the inspector is inspecting the governor which is a speed detection apparatus. It is the schematic which shows the screen of the terminal for a test | inspection at the time of an inspection failure when an inspector is inspecting the governor which is a speed detection apparatus.

  Hereinafter, a speed detection apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 to 3 show an outline of a speed governor that is a speed detection device according to an embodiment of the present invention. Below, it demonstrates as a governor.

  The speed governor 1 installed on the ceiling surface of the car 2 has the following configuration. That is, the roller 4 as an example of a rotating body that rotates in contact with a guide rail 3 that guides the elevator car 2 that constitutes the elevator apparatus in the up-and-down direction, and a rotational speed detection means that measures the rotational direction and the rotational speed of the roller 4 An encoder 5 is provided as an example.

  The roller 4 is fixed to the main shaft 6A, and the main shaft 6A is rotatably supported on the base 7. The base 7 is fixedly attached to the ceiling portion of the car 2. Therefore, the position of the base 7 is unchanged. The first transmission gear 11A is fixed to the main shaft 6A and rotates integrally with the main shaft 6A. Note that the main shaft 6A passes through the slide base 8.

  On the other hand, the main shaft 6B is rotatably supported by the slide table 8 and is moved together with the slide table 8. The encoder 5 is fixedly attached to the slide table 8. Therefore, the rotation detector such as an MR element attached to the tip of the main shaft 6B rotates in the encoder 5 and sends the rotation signal to the control device 17. A second transmission gear 11B is fixed to the main shaft 6B and rotates integrally with the main shaft 6B. The number of teeth of the second transmission gear 11B is determined to be smaller than that of the first transmission gear 11A.

  The main shaft 6 </ b> A and the main shaft 6 </ b> B constitute a rotation transmission shaft, and the rotation is transmitted by the clutch mechanism 15 or is blocked (not transmitted).

  As will be described later, the slide table 8 is movable with respect to the base 7. By this movement, the rotation of the roller 4 during normal operation or the rotation of the roller 4 during inspection is detected. Switching can be performed. The components mounted on the slide table 8 constitute a speed increasing mechanism that is a part of the features of the present invention. In other words, the rotation of the roller 4 is increased so that the car 2 is reproduced in a pseudo manner as if the car 2 is moving at a high speed.

  An intermediate shaft 9 penetrating the slide table 8 is pivotally supported on the base 7, and an intermediate gear 16 is rotatably provided at a part thereof. The purpose of mounting the intermediate gear 16 is to match the rotation directions of the main shaft 6A and the main shaft 6B during the inspection operation. Here, the position of the intermediate gear 16 is unchanged.

  A coil spring 10 is interposed between the base 7 and the slide base 8 and has a function of pushing the slide base 8 back to a normal position. The regular function is to detect the speed of the car 2 in a normal driving state. Therefore, the speed increasing mechanism cannot be operated by the slide table 8 except when the operator slides the slide table 8 for inspection.

  Further, a speed increasing shaft 12 is supported on the slide base 8, and a first speed increasing gear 13A and a second speed increasing gear 13B are attached to the speed increasing shaft 12. The number of teeth of the first speed increasing gear 13A is determined more than the number of teeth of the second speed increasing gear 13B.

  Accordingly, the speed increasing mechanism is selected not to operate during normal operation, and the speed increasing mechanism is selected to operate during inspection operation. Specifically, the rotation of the roller 4 is transmitted at an increased speed from the first transmission gear 11A to the first speed increasing gear 13A, the second speed increasing gear 13B, the intermediate gear 16 and the second transmission gear 11B. Here, since the rotation direction of the first transmission gear 11A is opposite in the first speed increasing gear 13A and the second speed increasing gear 13B, the rotation direction is further reversed using the intermediate gear 16 and the first transmission gear 11A. And the rotation direction of the second transmission gear 11B are made to coincide.

  The slide table 8 is configured to be movable only in the axial direction of each axis with respect to the base 7. However, the slide table 8 may be slid orthogonally to the main shaft 6, and the axial direction of the main shaft 6 is also possible. You may make it rotate with respect to. The base 7 is provided with an inspection position detection switch 14 which detects that the slide base 8 has moved to the inspection position and sends it to the control device 17 to be used as a signal for starting the inspection. Is done.

  Information such as the rotational direction and the rotational speed measured by the encoder 5 is sent to the control device 17, and is converted into the moving direction and speed of the car 2 by the control device 17. A predetermined critical speed is set in the control device 17. When the speed of the car 2 exceeds the critical speed, the control device 17 stops the operation of the elevator device and lowers the speed of the car 2. The brake device 18 is actuated to drop the brake.

  The braking device 18 represents a device that applies braking to the movement of the car 2 such as a brake mechanism or an emergency stop device of a hoisting machine, but the critical speed depends on the moving direction of the car 2 and the type of the braking device 18. It is prescribed according to. For example, when the braking device 18 is an emergency stop device, it is 1.4 times or less of the rated speed. A plurality of braking devices 18 and dangerous speeds may be provided according to the type and scale of the elevator device.

  Next, the operation when the governor 1 is inspected will be described below. The state of the governor 1 during normal operation is shown in FIG.

  During operation, the slide table 8 is pushed toward the roller 4 by the action of the return coil spring 10, so that the clutch 15 is connected. Therefore, when the car 2 moves in the upward direction or the downward direction, the rotation of the roller 4 in contact with the guide rail 3 is transmitted to the main shaft 6A, the clutch 15, and the main shaft 6B. Which indirectly represents the moving speed of the car 2). As a result, the moving direction and moving speed of the car 2 are sent to the control device 17.

  At this time, the arrangement positions of the intermediate gear 16, the first speed increasing gear 13A, and the second speed increasing gear 13B are determined so that the first transmission gear 11A and the second transmission gear 11B do not mesh with each other. It is configured.

  Next, the state of the speed governor 1 when the speed governor 1 is inspected will be described with reference to FIG. 3. At the time of the inspection, the operator mounts the slide base 8 of the speed governor 1 as shown in FIG. 10 is compressed and slid rightward on the paper surface, the first speed increasing gear 13A and the first transmission gear 11A are meshed, and the second speed increasing gear 13B, the intermediate gear 16 and the second transmission gear 11B are meshed.

  At this time, the main shaft 6A and the main shaft 6B are disconnected from the engaged state by the clutch 15, and the rotation of the main shaft 6A is not directly transmitted to the main shaft 6B. The first speed increasing gear 13A, the first transmission gear 11A, and the second speed increasing gear. 13B, the intermediate gear 16 and the second transmission gear 11B are transmitted at an increased speed.

  Here, the number of teeth of each of the intermediate gear 16, the speed increasing gears 13A and 13B, and the transmission gears 11A and 11B is configured to have an arbitrary gear ratio in advance. For example, in the case where the braking device 18 to be inspected is an emergency stop device, if the inspection speed, which is the speed at the time of the inspection operation of the car 2, is amplified by the tooth number ratio, it is 1.4 times the rated speed or more. Speed will be obtained.

  Further, the mounting positions of the respective gears are mounted at positions that engage with each other when the slide table 8 is moved for inspection.

  Therefore, when the car 2 moves in the upward or downward direction with the intermediate gear 16 and the speed increasing gears 13A and 13B and the transmission gears 11A and 11B meshing, the rotation of the roller 4 in contact with the guide rail 3 is rotated. The moving speed of the car 2 that has been amplified by the respective gear ratio and applied to the main shaft 6B and increased as a result by the encoder 5 is measured.

  As a result, it is possible to simulate a state in which the car 2 moves at a dangerous speed of 1.4 times or more than the rated speed just by moving the car 2 at a predetermined inspection speed.

  When the slide base 8 is moved to the right side in the drawing, the return coil spring 15 is compressed, so that a force is generated to return the slide base 8 to the original position, that is, the position where the clutch 15 is coupled. Although not shown, a fixing portion for fixing the slide table 8 may be provided so as to hold this position at the time of inspection. The inspection position detection switch 14 detects that the slide base 8 is in a position where the clutch 15 is disengaged.

  In addition to the meshing system shown in the figure, the clutch 15 may be one that transmits rotation by frictional force, and may be structured such that the clutch 7 can be fixed with a pin or the like so that the rotation is not accidentally interrupted during operation. .

  For the speed increasing mechanism including the intermediate gear 16 and the speed increasing gears 13A and 13B and the transmission gears 11A and 11B, the rotational speed of the pulley and belt or the gear and chain is amplified and transmitted instead of the gear train. It is safe to use a speed increasing mechanism that can do this.

  The return coil spring 10 only needs to have a function of returning the slide base 8 to the position during normal operation, and a spring element other than the coil spring 10 as in this embodiment may be used, and the installation location is also great. It is not limited. Conversely, the return coil spring 10 may have a function of returning the slide base 8 to the position at the time of inspection. In this case, a fixing portion for fixing the slide base 8 so as not to slide during operation is also provided. It is necessary to prepare.

  Even when the roller 4 and the encoder 5 are not coaxial as shown in FIG. 1, the same action can be obtained if the clutch 15 is provided so as to transmit the rotation of the roller 4 to the encoder 5.

  Further, the inspection position detection switch 14 is a switch having a mechanical contact or an optical switch. By providing a plurality of inspection position detection switches 14, redundancy can be enhanced by using a multiple system. The inspection position detection switch 14 may be attached to the clutch 15 to detect whether the clutch 15 is disconnected. In any case, the present invention can employ various modifications as described above.

  Next, the situation at the time of inspection of the elevator apparatus will be described with reference to FIG. When the worker performs the inspection, the worker gets on the outer ceiling of the car 2 and connects the inspection terminal 19 to the control device 17.

  The inspection terminal 19 has (1) the moving direction and moving speed of the car 2 obtained from the encoder 5 of the governor 1, and (2) the movement of the car 2 obtained from other speed detecting devices such as a hoisting machine. Direction and speed, (3) and its ratio can be displayed. In addition to this, parameters indicating the operation status of various elevator apparatuses may be displayed as necessary.

  In addition, the position of the car 2, the status of whether or not the braking device 18 is instructed to start braking from the control device 17, the detection status of the inspection position detection switch 14, the operating status of the braking device 18, and the elevator device is operated. It is also possible to display whether the situation is possible. Further, the car 2 can be operated at an inspection speed lower than the normal operation speed by using the inspection terminal 19.

  The inspection method is generally performed as follows. First, the inspection terminal 19 is connected to the control device 17 to switch to the inspection operation mode. In addition, it may be configured to automatically switch to the operation mode for inspection by connecting the inspection terminal 19 to the control device 17.

  The display of the inspection terminal 19 is confirmed, and it is confirmed that the operating state of the braking device 18 and the state where the elevator device is operable. At this time, the driving direction and speed of the car 2 measured by the governor 1 displayed on the inspection terminal 19 are different from the driving direction and speed of the car 2 measured by other speed detection devices. Make sure it is within range.

  Next, the worker slides the slide table 8 of the governor 1 to the inspection position. At this time, it is visually confirmed that the clutch 15 is properly disconnected, and that the intermediate gear 16, the speed increasing gears 13A and 13B, and the transmission gears 11A and 11B are properly engaged. At the same time, the inspection terminal 19 confirms that the slide table 8 can be detected by the inspection position detection switch 14 at the inspection position.

  The operator operates the inspection terminal 19 while maintaining the state where the slide table 8 is in the inspection position (for example, while the slide table 8 is moved to the right side on the paper surface by the operator's hand), and the car 2 is moved. Raise or lower at the inspection speed. The speed governor 1 may be provided with a function of fixing the slide base 8 to the inspection position. As a result, by moving the car 2 at the inspection speed as described above, a state in which the car 2 is moved at a speed of 1.4 times the rated speed or more is simulated.

  When the control device 17 determines that the driving direction and speed of the car 5 measured by the encoder 5 exceed the dangerous speed, the control device 17 outputs a signal for operating the braking device 18. The inspection terminal 19 records and displays the speed of the car 2 at that time when a signal for operating each braking device 18 is issued from the control device 17.

  At this time, the control device 17 may output a signal for operating the brake device 18 to be inspected only when there is no problem in terms of safety of the worker, or the brake device 18 to be inspected may not be operated. it can. In the case where a plurality of braking devices 18 are provided, the same applies to the braking devices 18 that are not inspected.

  Next, a display example of the inspection terminal 19 will be described. FIG. 5 shows a display screen of the inspection terminal 19 when the inspection is successful, and FIG. 6 shows a display screen of the inspection terminal 19 when the inspection fails. Here, the case where the braking device 18 is an emergency stop device is shown.

  In the figure, when there are a plurality of dangerous speeds and braking devices 18, a plurality of similar results are displayed or displayed in a superimposed manner. In this embodiment, only one case is shown. The speed of the car 2 measured by the governor 1 is displayed as a governor speed line 20. It is assumed that an operation signal line 21 indicating a signal for operating the braking device 18 issued from the control device 17 outputs a signal for operating the braking device 18 when it becomes Low.

  Now, as shown in FIG. 5, when the operation signal line 21 becomes Low and the braking device 18 operates, the speed of the car 2 measured by the speed governor 1 at that time is displayed on the operation speedometer 22. In this case, since the speed is increased by the speed increasing mechanism, the actual moving speed of the car 2 is calculated and displayed based on the speed increasing ratio.

  Therefore, although the actual speed of the car 2 is 57.4 m / min, this speed is increased to a critical speed of 84 ± 2 m / min or more by the speed increasing mechanism and given to the encoder 5. The control device 17 determines that the car 2 is moving at a dangerous speed and sends a braking signal to the braking device 18. In this way, it becomes possible to simulate the dangerous speed due to the movement of the car 2.

  The worker records this value, compares it with the value of the dangerous speedometer 23 displayed next to it, confirms whether it is within the allowable value, and then records the value of the dangerous speedometer 23. Further, when the speed of the car 2 increases and exceeds the critical speed, it is also confirmed and recorded that a brake indicator lamp 24 indicating that the brake device 18 has been operated is displayed. After the brake device 18 is activated and the car 2 is stopped or the worker confirms with the brake indicator lamp 24 that the operation signal line 21 is Low at the inspection terminal 19, the worker Stop driving 2 at the inspection speed. Such a record is kept as an inspection history.

  FIG. 6 shows a display screen of the inspection terminal 19 at the time of inspection failure, and shows a case where the braking device 18 is an emergency stop device as in FIG. As shown in FIG. 6, when the speed governor speed line 20 exceeds 1.4 times the rated speed, but the operation signal line 21 does not become Low, the worker moves the car 2 at the inspection speed. Stop the operation, check the connection between the encoder 5 and the control device 17, and the connection between the control device 17 and the inspection terminal 19, or individually check and repair the parts that appear to be malfunctioning, and then perform the inspection again. Therefore, maintenance and inspection of the car abnormality countermeasure device will be performed.

  As described above, when the speed governor 1 according to the present invention can normally measure the speed of the car 2 or when the measured speed of the car 2 exceeds a predetermined critical speed, the control device 17. The elevator apparatus determines whether each brake device 18 is instructed to start braking or whether the car 2 is stopped by braking when the control device 17 instructs each brake device 18 to start braking. It can be expected that the inspection of the operating state of the abnormality countermeasure device can be easily performed in a short time.

  Note that, when the inspection position detection switch 14 detects that the slide table 8 is at the inspection position, the control device 17 may limit the operation speed of the elevator apparatus to the inspection speed. As a result, when the worker is inspecting, the elevator device is at a normal operating speed by an operation other than the worker, or the worker has neglected to return the slide table 8 from the inspection position after the inspection is completed. It is possible to prevent the control device 17 from operating the braking device 18 when the car 2 has not reached the critical speed during operation.

  Further, the intermediate shaft 9, the speed increasing shaft 12, the intermediate gear 16, the speed increasing gear 13, the transmission gear 11, the slide base 8, the return spring 10, and the inspection position detection switch 14 are configured to be removable. Similarly to the inspection terminal 19, an inspection device attached by an operator during inspection can be used.

  As described above, according to the present invention, it is possible to provide an elevator apparatus and an inspection method for an elevator apparatus that can easily inspect the operating state of an abnormality countermeasure apparatus for an elevator apparatus that is actually installed and that can take a shorter time. .

  DESCRIPTION OF SYMBOLS 1 ... Speed governor, 2 ... Riding car, 3 ... Guide rail, 4 ... Roller, 5 ... Encoder, 6A, 6B ... Main shaft, 7 ... Base, 8 ... Slide stand, 9 ... Intermediate shaft, 10 ... Coil spring, DESCRIPTION OF SYMBOLS 11A ... 1st transmission gear, 11B ... 2nd transmission gear, 12 ... Speed increasing shaft, 13A ... 1st speed increasing gear, 13B ... 2nd speed increasing gear, 14 ... Inspection position detection switch, 15 ... Clutch mechanism, 16 ... Intermediate gear, 17 ... control device, 18 ... brake device, 19 ... inspection terminal, 20 ... speed governor speed line, 21 ... operation signal line, 22 ... operation speed meter, 23 ... danger speed meter, 24 ... brake indicator light .

Claims (11)

A rotating body that is provided in the hoistway and rotates in contact with a guide rail that guides the car in the elevating direction;
Rotation speed detection means for detecting the rotation speed of the rotating body;
When the car is normally operated, the rotating body and the rotation speed detecting means are in a transmission state, and when the car is inspected, the rotation body and the rotation speed detecting means are in a non-transmission state. A transmission shaft;
When the car is normally operated, the rotating body and the rotation speed detecting means are in a non-transmitting state, and when the car is inspected, the rotating body and the rotation speed detecting means are in a transmitting state, and A speed detecting device comprising: a speed increasing mechanism for increasing the rotational speed of the rotating body and transmitting the speed to the rotational speed detecting means. In an elevator apparatus comprising a car, a guide rail that guides the car in the up-and-down direction, and a speed detection device that is mounted on the car and measures at least the moving speed of the car,
The speed detector includes a rotating body that rotates in contact with the guide rail, a rotating speed detecting unit that detects a rotating speed of the rotating body, and a transmitting state and a non-transmitting state of the rotating body and the rotating speed detecting unit. Rotation transmission shaft that can be selected, and the rotation body and the rotation speed detection means can be selected between a transmission state and a non-transmission state, and the rotation speed of the rotation body is increased and transmitted to the rotation speed detection means With a mechanism,
When the car is normally operated, the speed increasing mechanism is in a non-transmission state, and the rotation of the rotating body is transmitted to the rotation speed detecting means via the rotation transmission shaft, and the car is inspected. The elevator apparatus is characterized in that the rotation transmission shaft is in a non-transmission state, and the rotation of the rotating body is accelerated and transmitted to the rotation speed detecting means via the speed increasing mechanism. The elevator apparatus according to claim 2,
The elevator apparatus, wherein the speed detecting device is placed on a ceiling portion of the car so that the rotating body contacts the guide rail. The elevator apparatus according to claim 3,
An elevator apparatus characterized in that a detection signal from the rotational speed detecting means is sent to a control device mounted on a ceiling portion of the car to determine a moving speed of the car. The elevator apparatus according to claim 2,
The elevator apparatus according to claim 1, wherein the rotating body is a roller that rotates in contact with the guide rail, and the rotation speed detecting means is an encoder for detecting rotation. The elevator apparatus according to claim 2,
The rotation transmission shaft is divided into two, and the first rotation transmission shaft is provided with the rotating body, and the other second rotation transmission shaft is provided with the rotation speed detecting means, and the first rotation An elevator apparatus characterized in that a state in which rotation is transmitted and a state in which transmission is not transmitted by a clutch mechanism are selected for the transmission shaft and the second rotation transmission shaft. The elevator apparatus according to claim 6,
The elevator device according to claim 1, wherein the clutch mechanism is one of a meshing clutch mechanism and a friction clutch mechanism. The elevator apparatus according to claim 2,
The speed increasing mechanism is any one of a mechanism for increasing speed using a gear train, a mechanism for increasing speed using a pulley and a belt, and a mechanism for increasing speed using a gear and a chain. Elevator device. The elevator apparatus according to claim 4,
The speed detection device is provided with an inspection position detection switch provided in the speed increasing mechanism for detecting the inspection operation of the car, and a signal of the inspection position detection switch is sent to the control device. An elevator apparatus characterized by determining an inspection operation state. The elevator apparatus according to claim 9,
The elevator apparatus according to claim 1, wherein the detection position detection switch is one of a mechanical contact switch and an optical contact switch. The car,
A guide rail for guiding the car in the up and down direction;
A rotating body that rotates in contact with the guide rail, a rotating speed detecting means that detects a rotating speed of the rotating body, and a rotation transmission shaft that can select the rotating body and the rotating speed detecting means between a transmission state and a non-transmission state. And a speed increasing mechanism that can select the transmission state and the non-transmission state of the rotating body and the rotation speed detecting means, and increase the rotation speed of the rotating body and transmit the speed to the rotation speed detecting means. A speed detector mounted on the ceiling of the car;
An inspection method for an elevator apparatus comprising a control device mounted on a ceiling portion of the car for controlling operation of the car,
During inspection operation of the car,
The rotation transmission shaft is set in a non-transmission state, and the rotation of the rotating body is accelerated and transmitted to the rotation speed detecting means via the speed increasing mechanism.
The rotational speed signal of the rotational speed detection means at this time is input to the control device to determine the moving speed of the car,
An inspection method for an elevator apparatus that inspects the operation of the elevator apparatus by displaying the determination result on an inspection terminal connected to the control apparatus.

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