Inspection device and inspection method for elevator governor system

Abstract

Disclosed is an elevator governor system inspection device which makes it possible to easily inspect the operation of a governor system for detecting the speed of an elevator passenger car by using a contactless sensor. An elevator governor system inspection device equipped with a contactless sensor (2) provided to the passenger car and a safety control device (100) for detecting the passenger car speed on the basis of a sensor signal from the contactless sensor, and operating an emergency stop device when it is determined on the basis of the detected speed that the passenger car speed is too fast, said inspection device being: further equipped with a simulated speed generation unit (102) which generates a simulated speed which is greater than the detected speed on the basis of the detected speed; and further configured in a manner such that during inspection, the safety control device determines that the passenger car speed is too fast on the basis of the simulated speed.

Description

[Technical Field]

[0001] The present invention relates to an inspection device and an inspection method for inspecting the operation of an elevator governor system that activates an elevator emergency stop device. [Background technology]

[0002] An elevator system is equipped with a governor and an emergency stop device that constantly monitors the ascending and descending speed of a car and brings the car to an emergency stop if it reaches a predetermined overspeed. A governor rope connected to the car is wound around the governor pulley. When the car ascends or descends, the governor rope moves along with the car, causing the pulley to rotate. When the pulley rotates, a pendulum attached to the pulley swings due to centrifugal force. When the car reaches an overspeed state and the pendulum swings too much, the pendulum activates a gripping mechanism for the governor rope, restricting the movement of the governor rope. This activates the emergency stop device on the car side, bringing the car to an emergency stop.

[0003] In such elevator systems, the long governor rope is laid inside the hoistway, making it difficult to reduce space and costs. Furthermore, if the governor rope sways, it is likely to interfere with structures inside the hoistway.

[0004] In contrast to this, the technology described in Patent Document 1 is known as a conventional technology that does not use a mechanical governor as described above, but activates an emergency stop device based on the speed of the elevator car detected using a non-contact sensor.

[0005] In this prior art, when a monitoring device determines that there is an abnormality in the operating situation based on speed information from a car speed detection unit in a detection means for detecting the position and speed of the car, it outputs an activation signal to an emergency stop device. Furthermore, the position and speed detection device for a moving object described in Patent Document 1 (Fig. 15) detects the speed of the moving object based on images captured by a camera equipped on the moving object. If the moving object is an elevator, the images captured include the walls and pillars of the elevator shaft. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] International Publication No. 2006 / 073015 Summary of the Invention [Problem to be solved by the invention]

[0007] Inspection of the operation of a mechanical governor can be performed without running the car by removing the governor rope from the pulley and rotating the pulley with a drive unit. However, in governor systems that use non-contact sensors to detect the speed of the car, the car must be accelerated to overspeed, which makes the inspection more complicated and takes longer.

[0008] Therefore, the present invention provides an inspection device and an inspection method for an elevator governor system that can easily inspect the operation of a governor system that detects the speed of a car using a non-contact sensor. [Means for solving the problem]

[0009] In order to solve the above problems, the inspection device for an elevator governor system according to the present invention inspects the operation of a governor system that includes a non-contact sensor provided in a car, and a safety control device that detects the speed of the car based on a sensor signal from the non-contact sensor, and activates an emergency stop device when it determines that the car is in an overspeed state based on the detected speed.The inspection device includes a simulated speed generation unit that generates a simulated speed that is greater than the detected speed based on the detected speed, and during inspection, the safety control device determines that the car is in an overspeed state based on the simulated speed.

[0010] In order to solve the above problems, the method for inspecting an elevator governor system according to the present invention is a method for inspecting the operation of a governor system that includes a non-contact sensor provided in a car and a safety control device that detects the speed of the car based on a sensor signal from the non-contact sensor and activates an emergency stop device when it determines that the car is in an overspeed state based on the detected speed, in which while operating the car within a speed range below the rated speed, a simulated speed that is greater than the detected speed is generated based on the detected speed, and the safety control device determines that the car is in an overspeed state based on the simulated speed. [Effects of the Invention]

[0011] According to the present invention, the operation of the governor system can be easily inspected without causing the car to overspeed.

[0012] Problems, configurations, and effects other than those described above will become apparent from the following description of the embodiments. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a schematic configuration diagram of an elevator apparatus according to an embodiment; [Figure 2] FIG. 1 is a functional block diagram showing a configuration of a ropeless governor system in an embodiment. [Figure 3] 10 is a flowchart showing a processing operation in an inspection operation mode of the safety control device of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, embodiments of the present invention will be described by way of example with reference to the drawings. In the drawings, the same reference numerals indicate the same components or components having similar functions.

[0015] FIG. 1 is a schematic diagram of an elevator system according to an embodiment of the present invention.

[0016] As shown in Fig. 1, the elevator system includes a car 1, a non-contact sensor 2, an electric operating device 3, a link mechanism 4, and an emergency stop device 5. In Fig. 1, the emergency stop device 5 is simply illustrated, and the detailed configuration of the emergency stop device 5 is omitted. Note that the emergency stop device 5 in this embodiment is based on publicly known technology.

[0017] The car 1 is suspended by a main rope (not shown) in a hoistway provided in a building, and is slidably engaged with a guide rail 7 via a guide device. When the main rope is frictionally driven by a drive device (hoisting machine: not shown), the car 1 moves up and down in the hoistway.

[0018] The non-contact sensor 2 is provided on the car 1. The non-contact sensor 2 is used to detect the position of the car 1 in the elevator shaft, and the ascent / descent speed of the car 1 is constantly detected from the detected position of the car 1. Therefore, the non-contact sensor 2 can be used to detect when the ascent / descent speed of the car exceeds a predetermined overspeed.

[0019] In this embodiment, the non-contact sensor 2 includes an image sensor, and detects the position and speed of the car 1 based on image information of the surface condition of the guide rail 7 acquired by the image sensor.

[0020] In this first embodiment, the electric operator 3 is an electromagnetic operator and is disposed on top of the car 1. The electromagnetic operator has a movable piece or movable rod driven by, for example, a solenoid or an electromagnet. The electric operator 3 has an electromagnet and is in an inactive state while the electromagnet is energized. When the non-contact sensor 2 detects that the car 1 is in a predetermined overspeed state, the power supply to the electromagnet is cut off. This causes the electric operator 3 to operate, displacing the link mechanism 4 and putting the emergency stop device 5 into a braking state.

[0021] The link mechanism 4 has a link shaft 40 driven by the electric operator 3, a lifting link 41 linked to the link shaft 40 so as to be interlocked with the link shaft 40, and a lifting rod 42 connected to the lifting link 41, and in response to the operation of the electric operator 3, the lifting rods 42 arranged on the left and right sides of the car 1 are lifted up almost simultaneously via the lifting link 41. As a result, when the brake shoe 51 of the safety device 5 attached to the lifting rod 42 is lifted up to the braking position, the brake shoe 51 clamps the guide rail 7.

[0022] The safety devices 5 are arranged one on each side of the car 1. The brakes 51 provided in the safety devices 5 are movable between a braking position and a non-braking position, and clamp the guide rail 7 in the braking position. When the brakes 51 clamping the guide rail 7 rise relative to the car 1 as the car 1 descends, a braking force is generated by the friction acting between the brakes 51 and the guide rail 7. As a result, the safety devices 5 are activated when the car 1 enters an overspeed state, and bring the car 1 to an emergency stop.

[0023] The elevator apparatus of this embodiment is equipped with a so-called ropeless governor system that does not use a governor rope. When the ascending or descending speed of the car 1 exceeds the rated speed and reaches a first overspeed (for example, a speed not exceeding 1.3 times the rated speed), the ropeless governor system cuts off the power to the drive device (hoisting machine) that drives the traction sheave around which the main rope is wound and the power to the control device that controls this drive device. Furthermore, when the descending speed of the car 1 reaches a second overspeed (for example, a speed not exceeding 1.4 times the rated speed), the ropeless governor system electrically drives the electric operating device 3 provided in the car 1 to activate the emergency stop device 5 and bring the car 1 to an emergency stop.

[0024] In this embodiment, the ropeless governor system is composed of a non-contact sensor 2 and a safety control device 100 (Fig. 1) that determines whether the car 1 is overspeeding based on the output signal of the non-contact sensor 2. In this embodiment, the safety control device 100 is provided on the car 1, as shown in Fig. 1.

[0025] The safety control device 100 measures the speed of the car 1 based on the sensor signal of the non-contact sensor 2, and when it determines that the measured speed has reached a first overspeed, it outputs a command signal to cut off the power supply to the drive device (hoisting machine) and the power supply to the control device that controls this drive device. Furthermore, when it determines that the measured speed has reached a second overspeed, the safety control device 100 outputs a command signal to drive the electric operating device 3.

[0026] As will be described later, the safety control device 100 has a function of inspecting the operation of a ropeless governor system that detects the speed of the car 1 using the non-contact sensor 2.

[0027] FIG. 2 is a functional block diagram showing the configuration of the ropeless governor system in this embodiment.

[0028] The safety control device 100 includes a speed detection unit 101, a simulated speed generation unit 102, an inspection mode detection unit 105, an inspection mode switching unit 106, an overspeed determination unit 107, a drive power cut-off command unit 108, and an electromagnet power cut-off command unit 109.

[0029] In this embodiment, the safety control device 100 includes a computer system such as a microcomputer, and the computer system executes a predetermined program to operate as each unit.

[0030] First, the normal operation of the ropeless governor system, ie, its operation as a governor, will be described.

[0031] The speed detection unit 101 acquires a sensor signal from the non-contact sensor 2, and detects the speed of the car 1 based on the acquired sensor signal by image signal processing.

[0032] For example, the speed detection unit 101 calculates the speed from the distance traveled in a predetermined time period based on the image feature of the surface condition of the guide rail 7. Also, for example, the speed detection unit 101 detects the position of the elevator car 1 by comparing image information on the surface condition of the guide rail 7 stored in advance in a storage device with image information obtained from a sensor signal, and further measures the speed of the elevator car 1 by calculating the change in the detected position over time.

[0033] The speed detection unit 101 outputs the detected speed of the car 1 to the overspeed determination unit 107 via the inspection mode detection unit 105.

[0034] The inspection mode detection unit 105 connects either the output of the speed detection unit 101 or the output of a simulated speed generation unit 102 (described later) to the input of an overspeed determination unit 107. During normal operation of the ropeless governor system, the inspection mode detection unit 105 connects the output of the speed detection unit 101 to the input of the overspeed determination unit 107.

[0035] The overspeed determination unit 107 determines whether the detected speed input from the speed detection unit 101 is equal to or greater than the first overspeed. If the overspeed determination unit 107 determines that the detected speed is equal to or greater than the first overspeed, it sends the determination result to the drive power supply cutoff command unit 108.

[0036] When the drive power cutoff command unit 108 receives the determination result from the overspeed determination unit 107, it outputs a command signal to cut off the power supplies to the hoisting machine and the control device 60.

[0037] Moreover, the overspeed determination unit 107 determines whether the detected speed input from the speed detection unit 101 is equal to or greater than the second overspeed. If the overspeed determination unit 107 determines that the detected speed is equal to or greater than the second overspeed, it sends the determination result to the electromagnet power cutoff command unit 109.

[0038] When receiving the determination result from the overspeed determination unit 107, the electromagnet power supply cutoff command unit 109 outputs a command signal to cut off the power supply to the electromagnet of the electric operator 3 (FIG. 1) in the electric safety device.

[0039] Next, the operation of the ropeless governor system during inspection will be described.

[0040] The maintenance terminal device 200 is communicably connected to the safety control device 100. The maintenance terminal device 200 is configured by a personal computer or the like.

[0041] The maintenance terminal device 200 sends, via the inspection mode command unit 201, a command signal to the safety controller 100 to command switching from the normal operation mode to the inspection operation mode.

[0042] When the inspection mode switching unit 106 in the safety control device 100 receives a command signal from the maintenance terminal device 200, it commands the inspection mode detection unit 105 to connect the output of the simulated speed generation unit 102 to the input of the overspeed determination unit 107. In response to the command from the inspection mode switching unit 106, the inspection mode detection unit 105 disconnects the connection between the output of the speed detection unit 101 and the input of the overspeed determination unit 107, and connects the output of the simulated speed generation unit 102 to the input of the overspeed determination unit 107.

[0043] The simulated speed generating unit 102 generates a simulated speed for inspection by multiplying the detected speed of the car 1 output by the speed detecting unit 101 by a constant using a proportional unit 103.

[0044] Because the non-contact sensor 2 is provided in the car 1, the detected speed output by the speed detection unit 101 may contain a vibration component associated with vibration of the car 1 due to the elasticity of the main rope. In the simulated speed generation unit 102, this vibration component is also multiplied by a constant. Therefore, in this embodiment, the vibration component of the simulated speed output by the proportional unit 103 is removed by a low-pass filter 104. The simulated speed generation unit 102 outputs a simulated speed from which the vibration component has been removed. This improves the reliability of inspections of ropeless governor systems.

[0045] When inspecting the operation of the ropeless governor system, the car 1 is operated within a speed range below the rated speed. The constant K is set so that a predetermined speed within the speed range multiplied by K is equal to the second overspeed described above (0 < predetermined speed ≦ rated speed, K × predetermined speed = second overspeed). This allows the operation of the ropeless governor system to be inspected while the car 1 is running at a speed below the rated speed.

[0046] The cutoff frequency of the low-pass filter 104 is set to the natural frequency of the vibration system consisting of the main ropes and the car 1. The natural frequency varies depending on the position of the car 1 because the length of the main ropes that make up the vibration system differs. For this reason, the cutoff frequency is preferably set to the minimum natural frequency.

[0047] The simulated speed generating unit 102 outputs the simulated speed of the car 1 to the overspeed determining unit 107 via the inspection mode detecting unit 105.

[0048] The overspeed determination unit 107 determines whether the simulated speed input from the simulated speed generation unit 102 is equal to or greater than the first overspeed. When the overspeed determination unit 107 determines that the simulated speed is equal to or greater than the first overspeed, it sends the determination result and the value of the simulated speed to the maintenance terminal device 200. As a result, the maintenance terminal device 200 detects that the ropeless governor system will perform a predetermined operation when the speed of the car 1 reaches the first overspeed, and also detects the speed of the car 1 at that time.

[0049] The maintenance terminal device 200 displays the judgment result received from the overspeed judgment unit 107 and the simulated speed value on a speed display unit 202 equipped with a display device such as a liquid crystal display.

[0050] Furthermore, the overspeed determination unit 107 determines whether the simulated speed input from the simulated speed generation unit 102 is equal to or greater than the second overspeed. If the overspeed determination unit 107 determines that the simulated speed is equal to or greater than the second overspeed, it sends the determination result and the value of the simulated speed to the maintenance terminal device 200. As a result, the maintenance terminal device 200 detects that the ropeless governor system will perform a predetermined operation when the speed of the car 1 reaches the second overspeed, and also detects the speed of the car 1 at that time. In this case as well, the maintenance terminal device 200 displays the determination result and the value of the simulated speed received from the overspeed determination unit 107 on the speed display unit 202.

[0051] In the inspection operation mode, the overspeed determination unit 107 does not send a determination result to the drive power supply cutoff command unit 108 and the electromagnet power supply cutoff command unit 109. Therefore, the car 1 is not brought to an emergency stop. Note that the drive power supply cutoff command unit 108 and the electromagnet power supply cutoff command unit 109 may be configured to invalidate the determination result.

[0052] FIG. 3 is a flowchart showing the processing operation in the inspection operation mode of the safety control device 100 of this embodiment.

[0053] In this embodiment, a maintenance engineer uses a maintenance terminal device 200 on a car 1 equipped with a safety control device 100 to inspect the operation of the ropeless governor system. At this time, the operation mode of the elevator system is set to a maintenance operation mode. In the maintenance operation mode, the maintenance engineer manually operates a maintenance operation panel equipped on the car 1 to cause the car 1 to run at a speed slower than the rated speed.

[0054] The maintenance engineer connects the maintenance terminal device 200 to the safety controller 100 via a communication line so that they can communicate with each other. Next, the maintenance engineer operates the maintenance terminal device 200 to switch the operation mode of the safety controller 100 from the normal operation mode to the inspection operation mode.

[0055] When the safety control device 100 starts processing operations, first, in step S1, a maintenance engineer operates the maintenance operation panel to start the car 1. When the car 1 starts running, it accelerates and runs in a speed range slower than the rated speed.

[0056] In step S2, the safety controller 100 acquires a sensor signal from the non-contact sensor 2.

[0057] Next, in step S3, the safety control device 100 uses the speed detection unit 101 to detect the speed of the car 1 based on the sensor signal acquired in step S1.

[0058] Next, in step S4, the safety control device 100 calculates a simulated speed for inspection by using the proportionalizer 103 in the simulated speed generation unit 102 to multiply the detected speed of the car 1 obtained in step S3 by a constant.

[0059] Next, in step S5, the safety control device 100 uses the low-pass filter 104 in the simulated speed generation unit 102 to filter the simulated speed calculated in step S4.

[0060] Next, in step S6, the safety control device 100 determines whether the simulated speed filtered in step S5 is equal to or greater than the first overspeed using the overspeed determination unit 107. If the safety control device 100 determines that the simulated speed is not equal to or greater than the first overspeed (NO in step S6), it executes the processes from step S2 onwards again. If the safety control device 100 determines that the simulated speed is equal to or greater than the first overspeed (YES in step S6), it then executes step S7.

[0061] In step S7, the safety control device 100 uses the overspeed determination unit 107 to output first overspeed data, including the value of the simulated speed determined in step S6 to be equal to or greater than the first overspeed, to the maintenance terminal device 200. The maintenance terminal device 200 uses the speed display unit 202 to display the first overspeed data on a display device provided in the maintenance terminal device 200. This allows the maintenance engineer to confirm that the ropeless governor system will perform a predetermined operation when the speed of the car 1 reaches the first overspeed. After executing step S7, the safety control device 100 then executes step S8.

[0062] In step S8, the safety controller 100 acquires a sensor signal from the non-contact sensor 2.

[0063] Next, in step S9, the safety control device 100 uses the speed detection unit 101 to detect the speed of the car 1 based on the sensor signal acquired in step S8.

[0064] Next, in step S10, the safety control device 100 calculates a simulated speed for inspection by using the proportionalizer 103 in the simulated speed generation unit 102 to multiply the detected speed of the car 1 obtained in step S9 by a constant.

[0065] Next, in step S11, the safety control device 100 uses the low-pass filter 104 in the simulated speed generating unit 102 to filter the simulated speed calculated in step S10.

[0066] Next, in step S12, the safety control device 100 determines whether the simulated speed filtered in step S11 is equal to or greater than the second overspeed using the overspeed determination unit 107. If the safety control device 100 determines that the simulated speed is not equal to or greater than the second overspeed (NO in step S12), it executes the processes from step S8 onwards again. If the safety control device 100 determines that the simulated speed is equal to or greater than the second overspeed (YES in step S12), it then executes step S13.

[0067] In step S13, the safety control device 100 uses the overspeed determination unit 107 to output second overspeed data including the value of the simulated speed determined in step S12 to be equal to or greater than the second overspeed to the maintenance terminal device 200. The maintenance terminal device 200 uses the speed display unit 202 to display the second overspeed data on a display device provided in the maintenance terminal device 200. This allows the maintenance engineer to confirm that the ropeless governor system will perform a predetermined operation when the speed of the car 1 reaches the second overspeed. After executing step S13, the safety control device 100 then executes step S14.

[0068] In step S14, the maintenance engineer operates the maintenance operation panel to stop the travel of the car 1. When the car 1 stops, the safety control device 100 ends the series of processes.

[0069] As described above, according to this embodiment, the operation of the ropeless governor system can be inspected by running the car 1 at a low speed equal to or lower than the rated speed without causing the car 1 to overspeed. Therefore, the operation of the ropeless governor system that detects the car speed using a non-contact sensor can be easily inspected.

[0070] The non-contact sensor 2 may detect a barcode or a predetermined pattern containing position information in the height direction in the elevator shaft. In this case, the barcode or the predetermined pattern is set on the surface of a long object to be detected, such as a tape.

[0071] Alternatively, a magnetic sensor may be used as the non-contact sensor, in which case the object to be detected is a long member, such as a tape, magnetized with a pattern containing position information.

[0072] The present invention is not limited to the above-described embodiments, but includes various modifications. For example, the above-described embodiments have been described in detail to clearly explain the present invention, and the present invention is not necessarily limited to those including all of the described configurations. Furthermore, it is possible to add, delete, or replace part of the configuration of the embodiments with other configurations.

[0073] For example, the electric operating device 3 may be provided not only above the car 1 but also below or to one side of the car 1. The elevator system may have a machine room, or may be a so-called machine room-less elevator. [Explanation of symbols]

[0074] 1...car, 2...non-contact sensor, 3...electric operating device, 4...link mechanism, 5...emergency stop device, 7...guide rail, 40...link shaft, 41...lifting link, 42...lifting rod, 51...brake, 60...hoisting machine and control device, 100...safety control device, 101...speed detection unit, 102...simulated speed generation unit, 103...proportional regulator, 104...low-pass filter, 105...inspection mode detection unit, 106...inspection mode switching unit, 107...overspeed determination unit, 108...drive power supply cut-off command unit, 109...electromagnet power supply cut-off command unit, 200...maintenance terminal device, 201...inspection mode command unit, 202...speed display unit

Claims

1. An inspection device for an elevator governor system that inspects the operation of a governor system that includes a non-contact sensor provided in a car, and a safety control device that detects the speed of the car based on a sensor signal from the non-contact sensor and activates an emergency stop device when it determines that the car is in an overspeed state based on the detected speed, the safety control device cuts off power supplies to the drive device and the control device when determining a first overspeed of the car based on the detected speed, and puts the safety stop device into a braking state when determining a second overspeed of the car based on the detected speed, a simulated speed generating unit that generates a simulated speed greater than the detected speed based on the detected speed, During inspection, the safety control device determines the first overspeed and the second overspeed of the elevator car based on the simulated speed, During the inspection, Even if the safety control device determines the first overspeed of the elevator car based on the simulated speed, the power supplies of the drive device and the control device are not cut off, an inspection device for an elevator governor system, wherein even if the safety control device determines the second overspeed of the elevator car based on the simulated speed, the safety control device does not put the emergency stop device into the braking state.

2. (delete)

3. (delete)

4. 2. The elevator governor system inspection device according to claim 1, The inspection device for an elevator governor system, wherein the simulated speed generating unit filters the simulated speed using a low-pass filter.

5. (delete)

6. 2. The elevator governor system inspection device according to claim 1, The safety control device includes the simulated speed generation unit, The safety control device includes: a speed detection unit that calculates the detected speed based on the sensor signal; an overspeed determination unit that determines the first overspeed and the second overspeed of the elevator car using the detected speed as an input; and a maintenance terminal device is communicably connected to the safety control device during the inspection; the maintenance terminal device has an inspection mode command unit that sends a command signal to the safety control device to command switching from a normal operation mode to an inspection operation mode, The safety control device includes: an inspection mode detection unit that connects either an output of the speed detection unit or an output of the simulated speed generation unit to an input of the overspeed determination unit; an inspection mode switching unit that, upon receiving the command signal from the maintenance terminal device, commands the inspection mode detection unit to connect the output of the simulated speed generation unit and the input of the overspeed determination unit; Equipped with When the overspeed determination unit determines the first overspeed of the car, it sends the value of the simulated speed to the maintenance terminal device, and when it determines the second overspeed of the car, it sends the value of the simulated speed to the maintenance terminal device; the maintenance terminal device includes a display unit that displays the value of the simulated speed sent from the overspeed determination unit, and an inspection device for an elevator governor system, wherein, during the inspection, the input of the overspeed determination unit is switched from the detected speed to the simulated speed.

7. An inspection method for an elevator governor system for inspecting operation of a governor system including a non-contact sensor provided in a car, and a safety control device that detects a speed of the car based on a sensor signal of the non-contact sensor and activates an emergency stop device when determining that the car is in an overspeed state based on the detected speed, the safety control device cuts off power supplies to the drive device and the control device when determining a first overspeed of the car based on the detected speed, and puts the safety stop device into a braking state when determining a second overspeed of the car based on the detected speed, While operating the elevator car within a speed range equal to or less than a rated speed, a simulated speed greater than the detected speed is generated based on the detected speed; During inspection, the safety control device determines the first overspeed and the second overspeed of the elevator car based on the simulated speed, During the inspection, Even if the safety control device determines the first overspeed of the elevator car based on the simulated speed, the power supplies of the drive device and the control device are not cut off, a safety control device that determines the second overspeed of the elevator car based on the simulated speed and does not place the emergency stop device in the braking state;

8. 2. The elevator governor system inspection device according to claim 1, The inspection device for an elevator governor system, wherein the simulated speed generating unit generates the simulated speed by multiplying the detected speed by a constant.

9. 9. The inspection device for an elevator governor system according to claim 8, During the inspection, the elevator car is operated within a speed range equal to or less than a rated speed, The constant is set so that a speed value obtained by multiplying a predetermined speed in the speed range by the constant is equal to the speed of the elevator car in the overspeed state.

10. 2. The elevator governor system inspection device according to claim 1, The safety control device is characterized in that it includes the simulated speed generation unit.

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