JP2010150000A - Entanglement detector for governor rope of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an entanglement detector for governor ropes of an elevator detecting the entanglement of the governor rope early in the diagnosing operation after occurrence of an earthquake. <P>SOLUTION: This device for inspecting whether the governor rope 7 is entangle with equipment inside a hoistway or not in the diagnosing operation after occurrence of an earthquake to stop the earthquake restoration operation when the entangled governor rope is detected and to automatically restore the elevator when the entangled governor rope is not detected includes: an emergency stopper device 31 provided in a car 1 to be operated in emergency to stop the car 1 in emergency by catching a main guide rail 30; a pull-up bar 33 connected to the governor rope to operate the emergency stopper device; and a device 10 for detecting the entangled governor rope, which is provided in the car and engaged without being pulled by the governor rope in normal operation and which is pulled in the only case wherein the governor rope is entangled with the equipment in the hoistway and detects the entangled governor rope. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator governor rope catch detection device.

The elevator earthquake recovery system checks whether the governor rope is caught by equipment in the hoistway during diagnostic operation after the earthquake. At this time, it is diagnosed whether the governor rope is caught while detecting the torque of the hoisting machine. When the abnormal torque is detected, the elevator is stopped. If the governor rope is caught, the governor rope may be pulled left and right or forward, and the lifting rod of the emergency stop device may be deformed or damaged. (See FIG. 7).
If this becomes an earthquake restoration system in a high-speed elevator, the speed at the time of abnormality detection operation becomes faster than that of a normal elevator, so that when the governor rope is caught, there is a high possibility that equipment in the hoistway will be damaged. In the diagnostic operation, the torque of the hoisting machine at the time of catching is detected. However, when the hoisting process is high and the catching occurs below the hoistway, it cannot be detected only by the fluctuation of the hoisting machine torque. Even if it can be detected, the lifting rod of the emergency stop device may already be deformed or damaged at the time of detection. In such a case, it was necessary to hit it again with a hammer or the like on site.

Further, as a conventional technique, the rope comprises a detection arm that is attached to an arm of a governor tensioner that applies tension to the governor rope of the elevator and moves integrally with the movement of the arm, and a detection switch that detects a change in the position of the detection arm. An elevator governor rope abnormality detection device that detects cutting and catching of an elevator is known (for example, see Patent Document 1).
As another conventional technique, there is known a hook detection device for elevator ropes that is provided in the vicinity of the main rope exit of the sheave of the hoist and measures the rope displacement in the vicinity of the main rope exit of the sheave (for example, , See Patent Document 2).

JP-A-9-77409 JP 2008-184253 A

In the conventional high-speed elevator earthquake recovery system, the abnormality detection operation speed at the time of diagnostic operation is faster than that of a normal elevator, so that it is necessary to detect the catch as early as possible when the governor rope is caught.
Moreover, in the thing of the conventional patent document 1, in order to detect that the governor tensioner lifted upwards gradually when the rope is caught, it is difficult to detect the rope catch at an early stage. Yes, it was not suitable for high-speed elevators.
Moreover, the thing of patent document 2 cannot detect the catch of a governor rope, and even if it applied to a governor rope, there was a problem that the catch of the lower part of a hoistway has little displacement and cannot be detected.

  The present invention has been made to solve the above-described problems. Even in a high-speed elevator earthquake recovery system, the governor rope, the lifting rod of the emergency stop device, etc. are damaged during the diagnostic operation after the occurrence of the earthquake. It is an object of the present invention to provide an elevator governor rope catch detection device that can detect a catch of a governor rope early.

  In the elevator governor rope catch detection device according to the present invention, it is checked whether or not the governor rope is caught on the hoistway device during the diagnostic operation after the occurrence of the earthquake, and if the governor rope catch is detected, the earthquake recovery operation is stopped. In the elevator that automatically restores the elevator when the hook of the governor rope is not detected, the elevator is connected to the governor rope, and an emergency stop device that is provided in the car and operates in an emergency to grip the main guide rail and stop the car emergencyly. , A lifting rod for operating the emergency stop device, and a cage, which is normally engaged without being pulled by the governor rope, and is only pulled when the governor rope is caught by the hoistway device, so that the governor rope is not caught. Governor rope catch detection device to detect It is intended.

  In addition, the governor rope catch detection device normally has an annular rope support portion that moves laterally by being pulled only when the governor rope is inserted through the central portion of the governor rope and caught in the hoistway device, and the rope. It is provided with a detection switch that operates with the movement of the support unit and stops the earthquake recovery operation.

  The governor rope catch detection device is provided at the upper part of the car above the upper end of the lifting bar and at the lower part of the car below the lower end of the lifting bar.

  In addition, the governor rope catch detection device normally has an annular rope support portion that moves laterally by being pulled only when the governor rope is inserted through the central portion of the governor rope and caught in the hoistway device, and the rope. A rope sliding material provided on the inner peripheral surface of the support portion, and a detection switch that operates in accordance with the movement of the rope support portion and stops the earthquake recovery operation.

  In addition, the governor rope catch detection device is normally connected to the governor rope with a sufficient margin at one end, and when the governor rope is caught by the hoistway device, it is pulled and moved in the lateral direction, It is provided with a detection switch that operates along with the movement of the detection wire and stops the earthquake recovery operation.

  According to the present invention, even when the governor rope is caught on the hoistway device, the catch can be detected at an early stage, so that the diagnostic speed of the diagnostic operation during an earthquake can be increased. For example, it is possible to increase the speed of the fine speed abnormality detection operation or omit the fine speed abnormality detection operation and perform the manual speed abnormality detection operation. Thereby, there is an effect that the time required for the restoration of the earthquake restoration operation of a building such as a high-rise apartment is drastically shortened.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a schematic configuration of an abnormal information communication system such as an earthquake in an elevator together with the flow of information, and FIG. 2 is a recovery operation at the time of an earthquake provided with an elevator governor rope catch detection device according to Embodiment 1 of the present invention. FIG. 3 is an enlarged view showing an elevator governor rope catch detection apparatus according to Embodiment 1 of the present invention, and FIG. 4 is an elevator governor rope catch detection according to Embodiment 1 of the present invention. FIG. 5 is a side view of the elevator governor rope hook detection device according to the first embodiment of the present invention viewed from the side, and FIG. 6 is a side view of the governor rope during diagnostic operation after the occurrence of an earthquake. 4 equivalent diagram showing the state corresponding to the pulling of the wire, FIG. 7 is a pulling on the governor rope by the diagnostic operation after the earthquake occurred. FIG. 3 is a flowchart corresponding to FIG. 3 showing the state where the hook has occurred, and FIG. 8 is a flowchart showing the operation flow of the recovery operation system at the time of an earthquake provided with the elevator governor rope catch detection device in Embodiment 1 of the present invention. .

In FIG. 1, when an earthquake occurs and the seismometer of the low sensor operates, the elevator stops at the nearest floor, and the door is closed and cannot be used. Usually, a maintenance / inspection engineer inspects the elevator to check whether there is an abnormality.
In general, a communication device 72 dedicated to a maintenance company is connected to the elevator control circuit 71, and information on earthquake abnormality detection 70 such as failure information via a telephone line 73 is also included in the communication device 74 of the reception system 76 of the elevator maintenance company. To the receiving terminal 75. The reception system 76 of the elevator maintenance company has received this signal and the technical knowledge of maintenance / inspection by the communication that the elevator and the user of the building of the elevator received the telephone contact, “The elevator has stopped moving due to the earthquake”. The person 77 is dispatched to the building.

In FIG. 2, an elevator car 1 is connected to a counterweight 3 by a main rope 2, and the main rope 2 is wound around a hoisting machine 4. The car 1 is connected by a control cable 5 to a control circuit 6 installed in a machine room or the like. In addition, the car 1 includes a passive sensor that detects the presence or absence of passengers in the car, a car scale device, an in-car monitoring camera (none of which are shown), and detects that there are no passengers in the car 1. can do. A governor rope 7 is connected to the car 1, and is wound around the upper governor 8 and the lower governor tensioner 9, and moves up and down at the same speed as the car 1. Governor rope catch detection devices 10a and 10b are provided at the upper and lower portions of the elevator car 1, respectively.
The elevator seismometer includes an extra low sensor 22 having a return coil 21 that operates when a first reference value is exceeded, and a return coil 19 that operates when a second reference value that is greater than the first reference value is exceeded. The low sensor 20 is provided, and a three-level seismometer of the high sensor 18 without a return coil that operates when a third reference value greater than the second reference value is exceeded. In a low-scale earthquake with a seismic intensity of 3 or less, the extra low sensor 22 operates. When the extra low sensor 22 operates, the elevator performs the nearest floor stop operation and operates the return coil 21 after a certain time. Then, the seismic control operation control device 16 performs the operation to return to the normal operation.
Further, in a medium-scale earthquake with a seismic intensity of 4 or less, the low sensor 20 is in an operating range. When the low sensor 20 is operated, the mode is set to the earthquake restoration operation under the condition that the high sensor 18 is not operating. The earthquake restoration operation control device 17 controls the earthquake restoration operation.
The earthquake control operation control device 16 and the earthquake restoration operation control device 17 are executed in the elevator control circuit 6. The earthquake restoration operation control device 17 includes an operation state confirmation means 11 at the time of an earthquake, a sensor return circuit 12, a slow speed abnormality detection operation circuit 13, a manual speed abnormality detection operation circuit 14, and a high speed abnormality detection operation circuit 15.

Here, the conditions of the elevator earthquake recovery operation will be described first.
The purpose of the elevator earthquake restoration operation according to the present invention is to automatically restore a level where there is usually almost no damage to the elevator equipment due to the earthquake in the occurrence of an earthquake of medium and low scale.
When the sensitivity of the seismometer is very low, for example, seismic intensity is 3 or less, if the seismometer with low sensitivity does not operate even in the present situation, it will be automatically restored after a certain time.
Therefore, here, the level of the seismometer is set to three levels. In other words, if the current low-sensing seismometer does not operate, there will be almost no problem with the special low-speed sensor 22 whose level of the seismometer is automatically restored after a certain period of time (for example, seismic intensity 3 or less) and the automatic restoration operation. Seismometer level low sensor 20 (for example seismic intensity of 4 or less) and higher seismometer level, which is more likely to cause abnormalities and likely to cause problems in automatic recovery operation. There are three stages of the high detector 18 (for example, seismic intensity 5 or more). For highly sensitive seismic levels, it will be an inspection area where specialists for maintenance and inspection are dispatched.

Next, the configuration of the governor rope catch detection devices 10a and 10b for detecting the catch of the governor rope by the automatic restoration operation after the earthquake will be described with reference to FIGS.
In FIG. 3, 1a is a car vertical beam, 7 is a governor rope, 10a is an upper governor rope hook detection device provided at the upper part of the car vertical beam 1a, and 10b is a lower governor rope hook detection provided at the lower part of the car vertical beam 1a. A device 30 is a main guide rail for guiding the car 1, and 31 is an emergency stop device attached to the lower part of the car vertical beam 1a. The emergency stop device operates in an emergency and grips the main guide rail 30 to stop the car 1 in an emergency. Reference numeral 32 denotes a lifting lever for operating the emergency stop device 31, and 33 denotes a lifting bar of the emergency stop device 31 having a lower end portion connected to the lifting lever 32, and extends in the vertical direction. One end of the governor rope 7 is connected and fixed to the upper end portion of the lifting rod 33 through the upper governor rope catching detection device 10a, and the other end is connected and fixed to the lower end portion of the lifting rod 33 through the lower governor rope catching detection device 10b. The upper governor rope catch detection device 10a provided at the upper part of the car vertical beam 1a is located above the upper end of the lifting bar 33, and the lower governor rope catch detection device provided at the lower part of the car vertical beam 1a. 10 b is located below the lower end of the lifting rod 33. Reference numeral 34 denotes an intermediate support portion of the lifting rod 33 provided at the intermediate portion of the car vertical beam 1a, and supports the intermediate portion of the lifting rod 33.
Next, the detailed structure of the governor rope catch detection devices 10a and 10b will be described with reference to FIGS. The governor rope catch detection devices 10a and 10b include a ring-shaped rope support portion 40 through which the governor rope 7 is inserted through the central portion, and can detect that the governor rope 7 is pulled from the car 1 toward the hoistway wall. It is configured. The governor rope 7 has some vibration during normal travel, but does not pull the rope support portion 40. The rope support portion 40 is held substantially horizontally by a support arm 41 extending from a part of the outer periphery to the car 1 side. The extended end side of the support arm 41 of the rope support portion 40 is accommodated in the housing 42. Reference numeral 43 denotes a return spring wound around the support arm 41 between the spring seat 44 at the extended end of the support arm 41 and the inner wall of the housing 42. Normally, the governor rope 7 passes through the center of the ring-shaped rope support portion 40. To hold. Reference numeral 45 denotes a detection switch formed of a micro switch provided in the housing 42 and on the back side of the spring seat 44 of the support arm 41. When the governor rope 7 is caught on the hoistway device, the ring-shaped rope support portion 40 is pulled in the front side (FIG. 4) or the left and right side sides (FIG. 6), and the return spring 43 is compressed. Then, the micro switch 45 operates. The housing 42 of the rope support portion 40 is supported by the box portion 46 of the governor rope hook detection device 10 so that the housing 42 can be rotated by a fulcrum 47, and can swing sideways in the left-right direction. Reference numeral 48 denotes a return spring having an upper end portion attached to an intermediate portion outside the housing 42 of the support arm 41 and a lower end portion attached to the bottom portion of the box portion 46 of the governor rope catch detection device 10. The horizontal state is maintained so that it may pass through the center of the rope support part 40 of this.
As a result, when the governor rope 7 is caught during the diagnostic operation after the occurrence of the earthquake, the rope support section 40 is pulled in the direction of the front side (FIG. 4) and the lateral side (FIG. 6) such as left and right, and the catch of the governor rope 7 is immediately detected. can do. In the conventional case, when the governor rope 7 is caught by the diagnostic operation after the occurrence of the earthquake, the lifting bar 33 of the emergency stop device 31 is pulled together with the governor rope 7 as shown in FIG. In some cases, it was bent near 34 and deformed or damaged. For this reason, it was necessary to fix the lifting rod 33 and the like by hitting it with a hammer or the like at the site. However, according to the present invention, the rope support portion 40 can be used even if the governor rope 7 is caught by the diagnostic operation after the occurrence of the earthquake. Since the catch of the governor rope 7 can be detected immediately before the pulling rod 33 is deformed or damaged, the speed of the diagnostic operation can be increased since the abnormality can be detected at an early stage, and the diagnostic operation time can be shortened. Can do.

Next, the operation flow of the earthquake recovery operation system provided with the elevator governor rope catch detection device according to the present invention will be described with reference to FIG.
In step S1, the seismic control operation control device 16 determines whether or not the low detector 20 has been operated in step S2. If the seismometer of the low sensor 20 is operating in step S2, the process proceeds to step S3, and the communication device 72 notifies the elevator maintenance company reception system 76 of an earthquake detector operation report. Next, it progresses to step S4 and it is determined whether the high sensor 18 act | operated. If the high sensor 18 is not operating in step S4, the earthquake recovery operation is started (step S5). First, when the low detector 20 of the seismic detector is operated, the control circuit 6 obtains data (earthquake restoration operation condition) on whether the operation state of the elevator is stopped on a specific floor such as the first floor or the lobby floor. The operation state confirmation means 11 at the time of earthquake confirms from the memory (step S6). If the car is stopped on a specific floor such as the first floor or the lobby floor in step S6, the return coil 21 is operated by returning the extra low sensor 22 in step S7. In step S8, the return coil 19 is operated by the return of the low sensor 20. These return operations are performed by the sensor return circuit 12.
After returning the seismometers of the extra low sensor 22 and the low sensor 20, the car 1 is driven at a slow speed by the slow speed abnormality detection operation circuit 13 at step S 9, a slow speed abnormality detection operation is performed, and the up operation to the top floor is performed. Furthermore, perform a down operation to the lowest floor and make one round trip. Here, the slow speed operation is, for example, an elevator with a speed of 60 m / min and a speed of about 1/10 or about 5 m / min. By performing this slow speed abnormal operation, it is possible to improve the detection efficiency of various detection sensors and reduce the property damage accident.
Then, in the next step S10, the detection of the catch of the governor rope 7 during traveling is performed by the governor rope catch detection devices 10a and 10b. When the catch of the governor rope 7 is detected in step S10, the abnormality detection operation is immediately started and the earthquake recovery operation is stopped (step S11), and an earthquake recovery operation impossibility notification is transmitted to the elevator maintenance company reception system 76 (step S12), and the process ends. (Step S13).
Return to the first floor in the above step S9, the speed abnormality detection operation is completed, and if the catch of the governor rope 7 is not detected in step S10, the car 1 is detected by the manual speed abnormality detection operation circuit 14 in step S14. In the same way, up operation to the top floor and further down operation to the bottom floor are performed. The manual speed operation here refers to a speed of about 15 m / min which is set as a speed at the time of maintenance and inspection.
Then, in the next step S15, the catch of the governor rope 7 during traveling is detected by the governor rope catch detection devices 10a and 10b. When the catch of the governor rope 7 is detected in step S15, the abnormality detection operation is immediately performed and the earthquake recovery operation is stopped (step S11), and an earthquake recovery operation impossibility notification is transmitted to the elevator maintenance company reception system 76 (step S12), and the process ends. (Step S13).
Furthermore, in the earthquake recovery operation, if the manual speed abnormality detection operation is completed and no catch of the governor rope 7 is detected in step S15, the car 1 is subjected to the high speed abnormality detection operation circuit 15 in step S16, Similarly, up operation to the top floor and further down operation to the bottom floor are performed.
Then, in the next step S17, the catch of the governor rope 7 during traveling is detected by the governor rope catch detection devices 10a and 10b. When the catch of the governor rope 7 is detected in step S17, the abnormality detection operation is immediately performed and the earthquake recovery operation is stopped (step S11), and the earthquake recovery operation impossibility notification is transmitted to the elevator maintenance company reception system 76 (step S12), and the process ends. (Step S13).
In this way, by sequentially reporting the abnormality detection result due to the restoration operation to the elevator maintenance company, it is possible to construct a patrol inspection system that allows an expert engineer to be dispatched for inspection at an early stage for an elevator that cannot be automatically restored.
Further, the property detection accident and the detection efficiency can be improved by performing the abnormality detection operation in three stages of slow speed driving, manual speed driving, and high speed driving.
If no abnormality is detected in step S17, the process proceeds to step S18, where it is determined that no damage has been detected in the elevator, and the elevator is restored to normal operation. Thereafter, in step S19, an earthquake restoration notification is issued to the elevator maintenance company reception system 76 to inform the elevator that the earthquake restoration has been completed.
Thus, the elevator ends the earthquake recovery operation (step S13).

As described above, according to the first embodiment, conventionally, in the occurrence of a medium-scale earthquake with a seismic intensity of about 4, it is possible to distinguish seismic intensity 4 or seismic intensity 6 even though there is almost no equipment abnormality. Because there is a case where there is an abnormality even with seismic intensity 4, the current seismometers of elevators require operation by maintenance and inspection specialists for seismometer operation exceeding ultra-low sensitivity. Automatic inspection can be performed. As a result, most of the elevators during the operation of the seismometer can be automatically inspected, and most of the elevators are automatically diagnosed for abnormal conditions, and elevators free from problems can be automatically restored.
Further, according to the first embodiment, even when the governor rope is caught on the hoistway device, the catch can be detected at an early stage, so that the diagnostic speed of the diagnostic operation during the earthquake can be increased. For example, it is possible to increase the speed of the fine speed abnormality detection operation or omit the fine speed abnormality detection operation and perform the manual speed abnormality detection operation. As a result, the time required for the restoration of the earthquake restoration operation of a building such as a high-rise apartment is drastically reduced.

Embodiment 2. FIG.
9 to 11 are plan views of the elevator governor rope catch detection device according to the second embodiment of the present invention as seen from above. FIG. 10 is a diagram corresponding to FIG. 9 showing the state corresponding to the pulling from the side of the governor rope during the diagnostic operation after the earthquake occurrence, and FIG. 11 is the state corresponding to the pulling from the front to the governor rope during the diagnostic operation after the earthquake occurrence. FIG. 10 is a view corresponding to FIG. 9.
In the second embodiment, the governor rope 7 is provided with an annular rope support portion 84 formed of a quadrangle through which the central portion is inserted, and a rope sliding material 83 is applied to the inner surface with which the governor rope 7 comes into contact. The rope support portion 84 is fixed by the fixing springs 81 and 82. When the governor rope 7 is caught by the hoistway device and pulled forward (FIG. 11), when it is pulled laterally (FIG. 10) The detection switch 85 formed of a micro switch operates to detect the catch of the governor rope 7.
This second embodiment also has the same effect as the first embodiment.

Embodiment 3 FIG.
FIG. 12 is a plan view of the elevator governor rope hook detection device according to the third embodiment of the present invention as seen from above, and FIG. 13 is a diagram showing a state corresponding to the pull from the side of the governor rope during diagnostic operation after the occurrence of an earthquake. FIG.
In the third embodiment, one end of the detection wire 95 is connected to the governor rope 7 with a sufficient margin, and the governor rope 7 is hooked on the hoistway device and pulled in the forward or left / right direction (see FIG. 13). The switch plate 93 connected to the other end of the detection wire 95 is pulled, and the detection switch 94 made of a microswitch is operated by the switch plate 93 so that the catch of the governor rope 7 can be detected. In addition, 90 is a housing, 91 is a return spring of the switch plate 93, 92 is a stopper for preventing damage to the switch, 96 is an insertion hole provided in a portion through which the detection wire 95 of the housing 90 is inserted, and 97 is provided in the insertion hole 96. It is a ring-shaped buffer. When the governor rope 7 is caught in the hoistway device and pulled in the lateral direction (FIG. 13), the micro switch 94 operates to detect the catch of the governor rope 7.
This third embodiment also has the same effect as the first embodiment.

It is block explanatory drawing which shows schematic structure of abnormality information communication systems, such as an earthquake, in an elevator with the flow of information. BRIEF DESCRIPTION OF THE DRAWINGS It is a system block diagram which shows the whole structure of the recovery operation system at the time of an earthquake provided with the governor rope catching detection apparatus of the elevator in Embodiment 1 of this invention. It is an enlarged view which shows the governor rope catch detection apparatus of the elevator in Embodiment 1 of this invention. It is the top view which looked at the governor rope catch detection apparatus of the elevator in Embodiment 1 of this invention from the top. It is the side view which looked at the governor rope catch detection apparatus of the elevator in Embodiment 1 of this invention from the side. FIG. 5 is a view corresponding to FIG. 4 illustrating a state corresponding to a pull from the side of the governor rope during a diagnostic operation after the occurrence of an earthquake. FIG. 4 is a view corresponding to FIG. 3 in the conventional case showing a state where the governor rope is caught by the diagnostic operation after the occurrence of the earthquake. It is a flowchart which shows the operation | movement flow of the recovery operation system at the time of an earthquake provided with the governor rope catch detection apparatus of the elevator in Embodiment 1 of this invention. It is the top view which looked at the governor rope catch detection apparatus of the elevator in Embodiment 2 of this invention from the top. FIG. 10 is a diagram corresponding to FIG. 9 illustrating a state corresponding to a pull from the side of the governor rope during a diagnostic operation after the occurrence of an earthquake. FIG. 10 is a view corresponding to FIG. 9 illustrating a state corresponding to the pulling from the front of the governor rope during the diagnostic operation after the occurrence of the earthquake. It is the top view which looked at the governor rope catch detection apparatus of the elevator in Embodiment 3 of this invention from the top. FIG. 13 is a view corresponding to FIG. 12 showing a state corresponding to a pull from the side of the governor rope during a diagnostic operation after the occurrence of an earthquake.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator car 1a Car vertical beam 2 Main rope 3 Balance weight 4 Hoisting machine 5 Control cable 6 Control circuit 7 Governor rope 8 Governor 9 Governor tensioner 10a, 10b Governor rope hook detection device 11 Seismic operation state confirmation means 12 Detector return circuit 13 Low speed abnormality detection operation circuit 14 Manual speed abnormality detection operation circuit 15 High speed abnormality detection operation circuit 16 Seismic control operation control device 17 Earthquake recovery operation control circuit 18 High sensor 19, 21 Return coil 20 Low sensor 22 Special low sensor 30 Main guide rail 31 Emergency stop device 32 Lifting lever 33 Lifting rod 34 Intermediate support section 40, 84 Rope support section 41 Support arm 42, 90 Housing 43, 48, 91 Return spring 44 Spring seat 45, 85, 94 Detection switch (micro switch )
46 Box portion 47 Support point 70 Earthquake abnormality detection 71 Elevator control circuit 72, 74 Communication device 73 Telephone line 75 Receiving terminal 76 Elevator maintenance company reception system 77 Maintenance engineer 81, 82 Fixed spring 83 Rope sliding material 92 Switch break prevention stopper 93 Switch plate 95 Detection wire 96 Insertion hole 97 Buffer

Claims (6)

Check whether the governor rope is caught in the hoistway equipment during the diagnostic operation after the earthquake occurs, stop the earthquake recovery operation when the governor rope is caught, and automatically move the elevator if the governor rope is not caught In the elevator that was made to recover,
An emergency stop device provided in the car, which operates in an emergency and grips the main guide rail to emergency stop the car;
A lifting rod connected to the governor rope for operating the safety device;
A governor rope catch detection device that is provided in the cage, is normally engaged without being pulled by the governor rope, and is only pulled when the governor rope is caught by a hoistway device, and detects the catch of the governor rope;
An elevator governor rope catch detection device characterized by comprising:   The governor rope catching detection device includes an annular rope support portion that moves in a lateral direction by being pulled only when the governor rope is normally inserted through the central portion of the governor rope and is caught by a hoistway device, and the rope. The elevator governor rope catch detection device according to claim 1, further comprising a detection switch that operates along with the movement of the support unit and stops the earthquake recovery operation.   The elevator governor rope according to claim 2, wherein the rope support portion has a ring shape and is supported substantially horizontally so that it can be immediately detected that the rope support portion is pulled. Hook detection device.   The elevator governor rope catching device according to claim 1, wherein the governor rope catching detection device is provided at an upper part of the car above the upper end of the lifting bar and at a lower part of the car below the lower end of the lifting bar. A hanging detector.   The governor rope catching detection device includes an annular rope support portion that moves in a lateral direction by being pulled only when the governor rope is normally inserted through the central portion of the governor rope and is caught by a hoistway device, and the rope. The rope sliding material applied to the inner peripheral surface of the support portion, and a detection switch that operates with the movement of the rope support portion and stops the earthquake recovery operation. Elevator governor rope catch detection device.   The governor rope hook detection device is normally connected to the governor rope with a sufficient margin at one end, and when the governor rope is caught by a hoistway device, the detection wire that is pulled and moves laterally, and The elevator governor rope catch detection device according to claim 1, further comprising a detection switch that operates in accordance with the movement of the detection wire and stops the earthquake recovery operation.

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