Double-deck elevator

Abstract

This double deck elevator includes: a car device 2 that is capable of moving inside a hoistway 1 in the vertical direction; a control device 5 that controls the movement of the car device 2; and a detection device 200. The detection device 200 includes a first detector 201 that is for detecting the presence or absence of an anomaly in a car movement target device which operates together with the movement of the car device 2. The car device 2 includes an upper car 21 and a lower car 22 that is disposed below the upper car 21 and that is connected to the upper car 21. When the control device 5 performs an emergency operation for stopping the car device 2 at the nearest floor upon receiving earthquake information and then performs a diagnostic operation for diagnosing the state of the elevator, in the diagnostic operation, the control device 5 determines, on the basis of information from the first detector 201, whether or not a normal operation is possible, while moving the car device 2 from one to the other of a raised position at which the lower car 22 stops at the top floor of a building and a lowered position at which the upper car 21 stops at the bottom floor of the building.

Description

Technical Field

[0001] The present disclosure relates to a double - deck elevator.

Background Art

[0002] There is a technology that performs an automatic inspection of an elevator before maintenance technicians make their rounds after an earthquake, and if there is no abnormality, enables the elevator to be used as normal (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] [[ID=3�]]However, the technology described in Patent Document 1 is for single - deck elevators and not for double - deck elevators.

[0005] Therefore, it is required to automatically restore the operation of a double - deck elevator after an earthquake.

[0006] The present disclosure has been made to solve the above problems, and an object thereof is to obtain a double - deck elevator that can be automatically restored after an earthquake.

Means for Solving the Problems

[0007] The double-deck elevator according to this disclosure comprises a car unit that can move vertically within the hoistway, a control device that controls the movement of the car unit, and a detection device. The detection device has a first detector that operates in conjunction with the movement of the car unit to detect whether or not there is an abnormality in the car unit being moved. The car unit comprises an upper car and a lower car located below the upper car and connected to the upper car. When the control device receives earthquake information, it performs a controlled operation to stop the car unit at the nearest floor, and then performs a diagnostic operation to diagnose the condition of the elevator. In the diagnostic operation, the control device moves the car unit from one of two positions, an upward position where the lower car stops at the top floor of the building and a downward position where the upper car stops at the bottom floor of the building, to the other, and determines whether or not normal operation is possible based on information from the first detector. [Effects of the Invention]

[0008] According to this disclosure, the system can be automatically restored after an earthquake occurs. [Brief explanation of the drawing]

[0009] [Figure 1] This is a diagram showing the configuration of a double-deck elevator in Embodiment 1. [Figure 2] Figure 1 is a block diagram showing the control device and various sensors. [Figure 3] This is a flowchart illustrating an example of the operation of the control device shown in Figure 1. [Modes for carrying out the invention]

[0010] Embodiment 1. Figure 1 is a diagram showing the configuration of a double-deck elevator in Embodiment 1. The building is provided with an elevator shaft 1. Inside the elevator shaft 1, a car unit 2 and a counterweight 3 are installed so as to be movable in the vertical direction.

[0011] A machine room 1a is provided above the elevator shaft 1. The machine room 1a houses a hoisting machine 4 and a control device 5. The hoisting machine 4 generates the driving force to move the cage equipment 2 and the counterweight 3. The main rope 6 is wound around the drive sheave of the hoisting machine 4.

[0012] A cage unit 2 is connected to one end of the main rope 6. A counterweight 3 is connected to the other end of the main rope 6. As a result, the cage unit 2 and the counterweight 3 are suspended within the elevator shaft 1.

[0013] The rotation of the drive sheave of the hoisting machine 4 is controlled by control commands from the control device 5 to the hoisting machine 4. The cage equipment 2 and the counterweight 3 move within the hoistway 1 in accordance with the rotation of the drive sheave of the hoisting machine 4. In this way, the cage equipment 2 and the counterweight 3 are controlled by the control device 5.

[0014] A relay box 10 is fixed to the inner wall of the elevator shaft 1. The relay terminals housed inside the relay box 10 are electrically connected to the control device 5 via a fixed-side control cable 11. The relay terminals housed inside the relay box 10 are also electrically connected to the elevator car equipment 2 via a movable-side control cable 12. The fixed-side control cable 11 is fixed to the inner wall of the elevator shaft 1. The movable-side control cable 12 hangs down inside the elevator shaft 1 between the elevator car equipment 2 and the relay box 10. As a result, the movable-side control cable 12 is a moving component that operates in conjunction with the movement of the elevator car equipment 2. The control device 5 is electrically connected to the elevator car equipment 2 via the fixed-side control cable 11, the relay terminals inside the relay box 10, and the movable-side control cable 12.

[0015] Each landing 14 on each floor is provided with a landing entrance / exit 14a. Additionally, each landing 14 on each floor is provided with a landing door 15 that opens and closes the landing entrance / exit 14a.

[0016] The car equipment 2 has an upper car 21, a lower car 22, and an inter-floor adjustment device 23. The lower car 22 is disposed below the upper car 21. Also, the lower car 22 is connected to the upper car 21 via the inter-floor adjustment device 23.

[0017] The upper car 21 has an upper car body 21a and an upper car door 21b. An upper car entrance / exit 21c is provided in the upper car body 21a. The upper car door 21b moves relative to the upper car body 21a by the driving force of an upper car door driving device (not shown). The upper car door 21b opens and closes the upper car entrance / exit 21c by moving relative to the upper car body 21a.

[0018] On the floor where the upper car 21 stops, the landing door 15 faces the upper car door 21b. Thus, on the floor where the upper car 21 stops, when the upper car door 21b moves relative to the upper car body 21a, the landing door 15 interlocks with the upper car door 21b. On the floor where the upper car 21 stops, when the landing door 15 interlocks with the upper car door 21b, the landing entrance / exit 14a and the upper car entrance / exit 21c are opened and closed.

[0019] The lower car 22 has a lower car body 22a and a lower car door 22b. A lower car entrance / exit 22c is provided in the lower car body 22a. The lower car door 22b moves relative to the lower car body 22a by the driving force of a lower car door driving device (not shown). The lower car door 22b opens and closes the lower car entrance / exit 22c by moving relative to the lower car body 22a.

[0020] On the floor where the lower car 22 stops, the landing door 15 faces the lower car door 22b. Thus, on the floor where the lower car 22 stops, when the lower car door 22b moves relative to the lower car body 22a, the landing door 15 interlocks with the lower car door 22b. On the floor where the lower car 22 stops, when the landing door 15 interlocks with the lower car door 22b, the landing entrance / exit 14a and the lower car entrance / exit 22c are opened and closed.

[0021] The inter-floor adjustment device 23 is provided between the upper car 21 and the lower car 22. The inter-floor adjustment device 23 is capable of adjusting the distance between the upper car 21 and the lower car 22. The adjustment operation of the distance between the upper car 21 and the lower car 22 by the inter-floor adjustment device 23 is controlled by the control device 5.

[0022] An overhead portion 24 is provided at the upper end of the hoistway 1. The overhead portion 24 is provided so that a certain distance can be maintained between the upper end of the upper car 21 and the top of the hoistway 1 when the lower car 22 stops at the floor level of the landing 14 on the uppermost floor.

[0023] A pit portion 25 is provided at the lower end of the hoistway 1. The pit portion 25 is provided so that a certain distance can be maintained between the lower end of the lower car 22 and the bottom of the hoistway 1 when the upper car 21 stops at the floor level of the landing 14 on the lowermost floor.

[0024] A buffer 26 is provided in the pit portion 25. When the car equipment 2 falls due to some cause, the buffer 26 receives the car equipment 2, thereby mitigating the impact applied to the car equipment 2.

[0025] An earthquake detector 81 is provided in the pit portion 25. The earthquake detector 81 is electrically connected to the control device 5.

[0026] The earthquake detector 81 detects the occurrence of an earthquake. The earthquake detector 81, for example, detects a P-wave and transmits the detected detection signal to the control device 5 as earthquake information.

[0027] The control device 5 performs a control operation to stop the car equipment 2 at the nearest floor by receiving a detection signal from the earthquake detector 81. An emergency earthquake warning may be distributed to the control device 5 as earthquake information from a distribution server 83 via the Internet 82.

[0028] After performing controlled operation, the control device 5 starts a diagnostic operation to diagnose the condition of the elevator. In this case, during the diagnostic operation, the control device 5 moves the elevator car 2 from one of two positions: an upward position where the lower car 22 stops on the top floor of the building, and a downward position where the upper car 21 stops on the bottom floor of the building. The control device 5 sets the speed at which the elevator car 2 moves during the diagnostic operation to a low-speed diagnostic speed, which is slower than the speed at which the elevator car 2 moves during normal operation.

[0029] During diagnostic operation, the control device 5 operates the inter-floor adjustment device 23.

[0030] During diagnostic operation, the control device 5 stops the car equipment 2 at positions where the upper car 21 and lower car 22 are on different floors, and then performs the opening and closing operations of the upper car door 21b and the lower car door 22b, respectively. In this embodiment, an example in which a machine room 1a is provided is described, but a machine room-less configuration is also possible.

[0031] Figure 2 is a block diagram showing the control device 5 and various sensors in Figure 1.

[0032] The control device 5 receives a detection signal from the earthquake detector 81. In this case, the control device 5 outputs a control command to the hoisting machine 4 for controlled operation. The hoisting machine 4 operates based on the control signal. As a result, the elevator car 2 stops at the nearest floor. After controlled operation, the control device 5 performs a diagnostic operation to diagnose the elevator's condition. During the diagnostic operation, the control device 5 moves the elevator car 2 between the up-and-down position and the up-and-down position. During the diagnostic operation, the control device 5 determines whether normal operation is possible based on information from the detection device 200.

[0033] The detection device 200 includes a first detector 201, a second detector 211, and a third detector 221.

[0034] The first detector 201 is a detector that operates in conjunction with the movement of the car equipment 2 to detect whether or not there is an abnormality in the equipment to be moved by the car. The equipment to be moved by the car is, for example, the movable side control cable 12.

[0035] The first detector 201 includes an upper car sound collector 202, a lower car sound collector 203, and an interference detector 204.

[0036] The upper car sound collector 202 is installed on the upper car body 21a. The upper car sound collector 202 detects abnormal sounds occurring in the hoistway 1 and outputs the detection signal to the control device 5. Abnormal sounds include, for example, scraping noises that occur when the car equipment 2 moves while the main rope 6 is caught on various pieces of equipment in the hoistway 1. Abnormal sounds also include, for example, collision noises that occur when the counterweight 3 comes off a guide rail (not shown) in the hoistway 1 and collides with the car equipment 2.

[0037] If the control device 5 determines that no abnormal noise is occurring, it determines that there is no abnormality in the equipment to be moved by the elevator car. If the control device 5 determines that an abnormal noise is occurring, it determines that there is an abnormality in the equipment to be moved by the elevator car.

[0038] The lower basket sound collector 203 is installed on the lower basket body 22a. The lower basket sound collector 203 has the same function as the upper basket sound collector 202.

[0039] Furthermore, since it is sufficient to detect abnormal sounds occurring within the elevator shaft 1, either the upper car sound collector 202 or the lower car sound collector 203 alone may suffice.

[0040] The interference detector 204 detects the rate of change of the torque of the hoisting machine 4 per unit time and outputs it to the control device 5 as a detection signal.

[0041] The control device 5 determines that there is no snagging in the movable side control cable 12 if the rate of change of the torque of the hoisting machine 4 per unit time detected by the interference detector 204 is below a threshold. In this case, the control device 5 determines that there is no abnormality in the equipment to be moved.

[0042] The control device 5 determines that a snag has occurred in the movable side control cable 12 if the rate of change of the torque of the hoisting machine 4 per unit time, as detected by the interference detector 204, is greater than or equal to a threshold. In this case, the control device 5 determines that there is an abnormality in the equipment to be moved.

[0043] The interference detector 204 may also detect the current flowing through the hoisting machine 4 and output it to the control device 5 as a detection signal. If a snag occurs in the movable side control cable 12, the hoisting machine 4 will be subjected to a greater load than usual, and the current flowing through the hoisting machine 4 will also increase. Therefore, if the rate of increase of the current in the hoisting machine 4 per unit time is less than the threshold current value, the control device 5 can determine that no snag has occurred in the movable side control cable 12. Conversely, if the rate of increase of the current in the hoisting machine 4 per unit time is greater than or equal to the threshold current value, the control device 5 can determine that a snag has occurred in the movable side control cable 12.

[0044] The second detector 211 detects the operating status of the inter-floor adjustment device 23 and outputs a detection signal to the control device 5.

[0045] The second detector 211 includes an upper car position detector 212 and a lower car position detector 213.

[0046] The elevator car position detector 212 is installed on the elevator car body 21a. The elevator car position detector 212 detects the pressure ulcer level of the elevator car body 21a. The elevator car position detector 212 detects that the pressure ulcer level is 0 when the position of the elevator car position detector 212 coincides with the position of a plate (not shown) installed on the inner wall of the elevator shaft 1 on each floor. The elevator car position detector 212 detects that the elevator car body 21a is shifted upward from the position of the plate as positive, and shifted downward as negative. The elevator car position detector 212 outputs the detected pressure ulcer level as a detection signal to the control device 5.

[0047] The control device 5 outputs a control command to the inter-floor adjustment device 23 based on the detection signal output from the upper car position detector 212. After outputting the control command to the inter-floor adjustment device 23, the control device 5 determines whether the inter-floor adjustment device 23 is operating according to the control command based on the detection signal output from the upper car position detector 212.

[0048] The lower elevator car position detector 213 is installed on the lower elevator car body 22a. The lower elevator car position detector 213 detects the pressure ulcer level of the lower elevator car body 22a. The lower elevator car position detector 213 is configured to have the same function as the upper elevator car position detector 212.

[0049] The control device 5 outputs a control command to the inter-floor adjustment device 23 based on the detection signal output from the lower car position detector 213. After outputting the control command to the inter-floor adjustment device 23, the control device 5 determines whether the inter-floor adjustment device 23 is operating according to the control command based on the detection signal output from the lower car position detector 213.

[0050] The third detector 221 includes a landing door open / close detector 222, an upper car door open / close detector 223, and a lower car door open / close detector 224.

[0051] The landing door open / close detector 222 consists of a photoelectric sensor that detects the state of the landing entrance / exit 14a. The landing door open / close detector 222 detects whether the state of the landing entrance / exit 14a is fully closed or fully open on the floor where the elevator car 2 has stopped, and outputs the detection result as a detection signal to the control device 5.

[0052] The upper car door open / close detector 223 consists of a photoelectric sensor that detects the state of the upper car entrance / exit 21c. The upper car door open / close detector 223 detects whether the upper car entrance / exit 21c is in a fully closed state or a fully open state on the floor where the upper car 21 has stopped, and outputs the detection result as a detection signal to the control device 5.

[0053] The control device 5 determines that the door opening and closing operation is operating according to the control command if both the landing door 15 and the upper car door 21b are operating according to the control command. The control device 5 determines that the door opening and closing operation is not operating according to the control command if either the landing door 15 or the upper car door 21b is not operating according to the control command.

[0054] The lower car door open / close detector 224 consists of a photoelectric sensor that detects the state of the lower car entrance / exit 22c. The lower car door open / close detector 224 detects whether the lower car entrance / exit 22c is in a fully closed state or a fully open state on the floor where the lower car 22 has stopped, and outputs the detection result as a detection signal to the control device 5.

[0055] The control device 5 determines that the door opening and closing operation is operating according to the control command if both the landing door 15 and the lower car door 22b are operating according to the control command. The control device 5 determines that the door opening and closing operation is not operating according to the control command if either the landing door 15 or the lower car door 22b is not operating according to the control command.

[0056] If the control device 5 detects no abnormalities based on the detection signal from the first detector 201, the floor adjustment device 23 operates according to the control command based on the detection signal from the second detector 211, and the door opening and closing operation operates according to the control command based on the detection signal from the third detector 221, then the control device 5 performs the following: Specifically, the control device 5 terminates the diagnostic operation and automatically restores the double-deck elevator.

[0057] Next, an example of the operation procedure for diagnostic operation controlled by the control device 5 will be specifically explained using Figure 3.

[0058] Figure 3 is a flowchart illustrating an example of the operation of the control device 5 in Figure 1.

[0059] During diagnostic operation, the movement speed of the elevator car 2 is set to a low-speed diagnostic speed, and the elevator car 2 is moved from one of the thrust-up position and the thrust-down position to the other.

[0060] In the diagnostic operation, the floor-by-floor travel speed of the elevator car 2 is then set to a floor-by-floor stopping diagnostic speed. At each floor, it is determined whether the inter-floor adjustment device 23 operates according to the control command, and whether the door opening and closing operations are performed according to the control command. Here, the floor-by-floor stopping diagnostic speed is set to be faster than the low-speed diagnostic speed, and slower than the travel speed of the elevator car 2 during normal operation.

[0061] (Procedure for diagnostic operation) In step S11, the control device 5 determines whether or not it has detected an earthquake. If the control device 5 detects an earthquake, it proceeds from the process in step S11 to the process in step S12. If the control device 5 does not detect an earthquake, it continues the process in step S11.

[0062] In step S12, the control device 5 performs controlled operation.

[0063] In step S13, the control device 5 determines whether or not there are passengers remaining in the elevator car 2. If the control device 5 determines that there are no passengers remaining in the elevator car 2, it proceeds from step S13 to step S14. If the control device 5 determines that there are passengers remaining in the elevator car 2, it continues the process of step S13. Whether or not there are passengers remaining in the elevator car 2 can be determined based on the weight generated in the elevator car 2 using a scale (not shown). Alternatively, whether or not there are passengers in the elevator car 2 can be determined using a security camera (not shown).

[0064] In step S14, the control device 5 starts a diagnostic operation.

[0065] In step S15, the control device 5 sets the movement speed of the cage equipment 2 to a low-speed diagnostic speed.

[0066] In step S16, the control device 5 initiates the movement of the elevator car 2 from one of the thrust-up position and the thrust-down position to the other.

[0067] In step S17, the control device 5 determines whether or not it has detected an abnormality. If the control device 5 determines that it has detected an abnormality, it proceeds from the process in step S17 to the process in step S28. If the control device 5 determines that it has not detected an abnormality, it proceeds from the process in step S17 to the process in step S18.

[0068] In step S18, the control device 5 determines whether the movement of the elevator car 2 from one of the thrust-up position and the thrust-down position to the other has been completed. If the control device 5 determines that the movement of the elevator car 2 from one of the thrust-up position and the thrust-down position to the other has been completed, it proceeds from step S18 to step S19. If the control device 5 determines that the movement of the elevator car 2 from one of the thrust-up position and the thrust-down position to the other has not been completed, it returns from step S18 to step S17.

[0069] In step S19, the control device 5 sets the movement speed of the elevator car 2 to a speed for stopping and diagnosing each floor.

[0070] In step S20, the control device 5 moves the elevator car 2 up one floor.

[0071] Note that while this example describes moving through the floors one by one, ultimately, it is sufficient to move through all floors and determine whether or not there is an abnormality, so it is not necessary to move through the floors one by one.

[0072] In step S21, the control device 5 transmits a control command to the inter-floor adjustment device 23.

[0073] In step S22, the control device 5 determines whether the inter-floor adjustment device 23 operates according to the control command. If the control device 5 determines that the inter-floor adjustment device 23 operates according to the control command, it proceeds from step S22 to step S23. If the control device 5 determines that the inter-floor adjustment device 23 does not operate according to the control command, it proceeds from step S22 to step S28.

[0074] In step S23, the control device 5 transmits a control command for opening and closing the door.

[0075] Here, control commands for door opening and closing operations are transmitted to the upper car door drive unit and the lower car door drive unit, respectively. In this embodiment, the case where the floor pitch is constant is described, but if the floor pitch is not constant, it is possible that on the floor where the car equipment 2 stops, the landing door 15 may only face either the upper car door 21b or the lower car door 22b. In such a state, the drive of the upper car door 21b or the lower car door 22b that faces the landing door 15 is controlled.

[0076] In step S24, the control device 5 determines whether the door opening and closing operation is being performed according to the control command. If the control device 5 determines that the door opening and closing operation is being performed according to the control command, it proceeds from step S24 to step S25. If the control device 5 determines that the door opening and closing operation is not being performed according to the control command, it proceeds from step S24 to step S28.

[0077] In step S25, the control device 5 determines whether there are any floors that have not been moved to after the speed for floor-by-floor stop diagnostics has been set. If the control device 5 determines that there are floors that have not been moved to after the speed for floor-by-floor stop diagnostics has been set, it returns the process of step S25 to the process of step S20. If the control device 5 determines that there are no floors that have not been moved to after the speed for floor-by-floor stop diagnostics has been set, it proceeds the process of step S25 to the process of step S26.

[0078] In step S26, the control device 5 terminates the diagnostic operation.

[0079] In step S27, the control device 5 automatically restores the double-deck elevator and terminates the series of processes.

[0080] In step S28, the control device 5 stops the diagnostic operation.

[0081] In step S29, the control device 5 requests a maintenance worker to confirm. For example, the control device 5 requests a maintenance worker from a remote monitoring system (not shown) via the Internet 82.

[0082] In step S30, the control device 5 determines whether or not the system has been restored by a maintenance worker. If the control device 5 determines that the system has been restored by a maintenance worker, it terminates the process in step S30. If the control device 5 determines that the system has not been restored by a maintenance worker, it continues the process in step S30.

[0083] From the above explanation, when a double-deck elevator performs a diagnostic operation to diagnose the elevator's condition after receiving a detection signal from the earthquake detector 81, it performs the following during the diagnostic operation. Specifically, the double-deck elevator moves the car unit 2 from one of two positions: an upward position where the lower car 22 stops at the top floor of the building, and a downward position where the upper car 21 stops at the bottom floor of the building. Simultaneously with this movement, the double-deck elevator determines whether normal operation is possible based on information from the first detector 201. As a result, the car unit 2 moves between the upward and downward positions. Therefore, it is possible to determine whether or not there is an abnormality in the structure unique to the double-deck elevator. Consequently, it can be automatically restored after an earthquake.

[0084] Furthermore, in a diagnostic operation, the double-deck elevator may determine whether normal operation is possible based on information from the second detector 211 while operating the inter-floor adjustment device 23. This allows the car equipment 2 to determine whether the upper car 21 and the lower car 22 will stop at the correct positions. Therefore, it is possible to accurately determine whether there is a structural abnormality specific to the double-deck elevator. Consequently, it is possible to determine whether the inter-floor adjustment device 23 is functioning correctly, and thus it can be automatically restored after an earthquake.

[0085] Furthermore, in a diagnostic operation, the double-deck elevator may perform the following with the car equipment 2 stopped at a position where the upper car 21 and lower car 22 are at different floors. That is, the double-deck elevator may determine whether normal operation is possible based on the information from the third detector 221 while performing the opening and closing operations of the upper car door 21b and the lower car door 22b, respectively. This makes it possible to detect abnormalities in the opening and closing of both the upper car 21 and the lower car 22 doors. Therefore, it is possible to determine whether both the upper car door 21b and the lower car door 22b are operating normally, and thus enable automatic recovery after an earthquake.

[0086] In the above explanation, we described an example in which all detection signals from the first detector 20, the second detector 211, and the third detector 221 are used in diagnostic operation, but the explanation is not limited to this example.

[0087] For example, during diagnostic operation, the inter-floor adjustment device 23 does not need to be operated. In other words, the control device 5 does not need to use the detection signal from the second detector 211. The control device 5 can determine whether or not the elevator car equipment 2 can be moved, and can determine whether or not normal operation is possible, even without operating the inter-floor adjustment device 23.

[0088] Furthermore, for example, during diagnostic operation, it is not necessary to open or close the upper car door 21b. In other words, the control device 5 does not need to use the detection signal from the third detector 221. The control device 5 can determine whether or not the car equipment 2 can be moved without opening or closing the upper car door 21b.

[0089] Furthermore, for example, during diagnostic operation, it is not necessary to open or close the lower car door 22b. In other words, the control device 5 does not need to use the detection signal from the third detector 221. The control device 5 can determine whether or not the car equipment 2 can be moved without opening or closing the lower car door 22b. [Explanation of symbols]

[0090] 1 Hoistway, 1a Machine room, 2 Cage equipment, 3 Counterweight, 4 Hoisting machine, 5 Control device, 6 Main rope, 10 Relay box, 11 Fixed side control cable, 12 Movable side control cable, 14 Landing, 14a Landing entrance / exit, 15 Landing door, 21 Upper car, 21a Upper car body, 21b Upper car door, 21c Upper car entrance / exit, 22 Lower car, 22a Lower car body, 22b Lower car door, 22c Lower car entrance / exit, 23 Inter-floor adjustment device, 24 Overhead section, 25 Pit section, 26 Buffer, 81 Earthquake detector, 82 Internet, 83 Distribution server, 200 Detection device, 201 First detector, 202 Upper car sound collector, 203 Lower car sound collector, 204 Interference detector, 211 second detector, 212 upper car position detector, 213 lower car position detector, 221 third detector, 222 landing door open / close detector, 223 upper car door open / close detector, 224 lower car door open / close detector.

Claims

1. A car that can move vertically within the hoistway, A control device for controlling the movement of the aforementioned cage equipment, Detection device and Equipped with, The detection device has a first detector for detecting whether or not there is an abnormality in the equipment to be moved by the car, which operates in conjunction with the movement of the car equipment. The aforementioned cage device has an upper cage and a lower cage positioned below the upper cage and connected to the upper cage. When the control device receives earthquake information and performs a controlled operation to stop the elevator car at the nearest floor, and then performs a diagnostic operation to diagnose the elevator's condition, in the diagnostic operation, while moving the elevator car from one of the thrust-up position where the lower car stops at the top floor of the building to the other of the thrust-down position where the upper car stops at the bottom floor of the building, the control device determines whether normal operation is possible based on information from the first detector. The first detector has a sound collector, The sound collector is provided in at least one of the upper basket and the lower basket. The aforementioned sound collector is a double-deck elevator that detects abnormal noises occurring in the hoistway.

2. A car device that can move vertically within a hoistway, A control device for controlling the movement of the aforementioned cage equipment, Detection device and Equipped with, The detection device has a first detector for detecting whether or not there is an abnormality in the equipment to be moved by the car, which operates in conjunction with the movement of the car equipment. The aforementioned cage device has an upper cage and a lower cage positioned below the upper cage and connected to the upper cage. When the control device receives earthquake information and performs a controlled operation to stop the elevator car at the nearest floor, and then performs a diagnostic operation to diagnose the elevator's condition, in the diagnostic operation, while moving the elevator car from one of the thrust-up position where the lower car stops at the top floor of the building to the other of the thrust-down position where the upper car stops at the bottom floor of the building, the control device determines whether normal operation is possible based on information from the first detector. The aforementioned elevator car equipment has a floor-level adjustment device provided between the upper car and the lower car, The detection device has a second detector for detecting whether or not there is an abnormality in the floor adjustment device. The aforementioned floor-to-floor adjustment device is capable of adjusting the distance between the upper and lower car. The control device, in the diagnostic operation, operates the inter-floor adjustment device and determines whether or not normal operation is possible based on information from the second detector for the double-deck elevator.

3. The double-deck elevator according to claim 2, wherein the second detector comprises an upper car position detector for detecting the pressure sore level of the upper car and a lower car position detector for detecting the pressure sore level of the lower car.

4. A car device that can move vertically within a hoistway, A control device for controlling the movement of the aforementioned cage equipment, Detection device and Equipped with, The detection device has a first detector for detecting whether or not there is an abnormality in the equipment to be moved by the car, which operates in conjunction with the movement of the car equipment. The aforementioned cage device has an upper cage and a lower cage positioned below the upper cage and connected to the upper cage. When the control device receives earthquake information and performs a controlled operation to stop the elevator car at the nearest floor, and then performs a diagnostic operation to diagnose the elevator's condition, in the diagnostic operation, while moving the elevator car from one of the thrust-up position where the lower car stops at the top floor of the building to the other of the thrust-down position where the upper car stops at the bottom floor of the building, the control device determines whether normal operation is possible based on information from the first detector. The aforementioned upper car has an upper car body provided with an upper car entrance and an upper car door that opens and closes the upper car entrance. The aforementioned lower basket comprises a lower basket body provided with a lower basket entrance, and a lower basket door that opens and closes the lower basket entrance. The detection device has a third detector for detecting whether or not there is an abnormality in the opening and closing operation of the upper car door and the lower car door, respectively. In the diagnostic operation, the control device stops the car equipment at positions where the upper car and the lower car stop at different floors, and while performing the opening and closing operations of the upper car door and the lower car door, it determines whether normal operation is possible based on the information from the third detector. The third detector is a double-deck elevator comprising an upper car door open / close detector that detects whether the upper car entrance is in a fully closed state or a fully open state, and a lower car door open / close detector that detects whether the lower car entrance is in a fully closed state or a fully open state.

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