WO2005115902A1 - エレベータのロープ滑り検出装置、及びエレベータ装置 - Google Patents
エレベータのロープ滑り検出装置、及びエレベータ装置 Download PDFInfo
- Publication number
- WO2005115902A1 WO2005115902A1 PCT/JP2004/007725 JP2004007725W WO2005115902A1 WO 2005115902 A1 WO2005115902 A1 WO 2005115902A1 JP 2004007725 W JP2004007725 W JP 2004007725W WO 2005115902 A1 WO2005115902 A1 WO 2005115902A1
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- WO
- WIPO (PCT)
- Prior art keywords
- car
- rope
- speed
- sensor
- elevator
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
Definitions
- Elevator rope slip detection device and elevator device
- the present invention relates to an elevator rope slip detection device for detecting the presence or absence of occurrence of slippage of a rope that moves as a car moves with respect to a pulley, and an elevator device using the same.
- Japanese Unexamined Patent Publication No. 2003-81 549 describes a method for detecting the position of a car in a hoistway.
- an elevator car position detecting device for detecting the position of a car by measuring the rotation speed of a pulley around which a steel tape moving with the car is wound.
- the pulley is provided with a rotary encoder that outputs the number of revolutions of the pulley as a pulse signal.
- the pulse signal from the rotary encoder is input to the position determination unit.
- the position determining unit determines the position of the car based on the input of the pulse signal.
- the present invention has been made to solve the above-described problems, and has as its object to provide an elevator rope slip detection device capable of detecting whether or not a rope has slipped on a pulley. .
- the elevator slip detecting device of the elevator moves with the movement of the car.
- a rope slip detector of an elevator for detecting the occurrence of slip between a rope to be wrapped and a pulley around which the rope is wound and rotated by the movement of the rope, and a signal corresponding to the rotation of the pulley.
- a pulley sensor for detecting the speed of the rope, a rope sensor for detecting the moving speed of the rope, a first speed detector for determining the speed of the car based on a signal from the pulley sensor, By comparing the speed of the car obtained by each of the second speed detection unit that obtains the speed of the car based on the information of the traveling speed with the first and second speed detection units, the rope and the pulley can be connected to each other.
- a processing unit having a determination unit for determining the presence or absence of slippage therebetween.
- FIG. 1 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 1 of the present invention.
- FIG. 2 is a front view showing the safety gear of FIG.
- FIG. 3 is a front view showing a state when the safety gear of FIG. 2 is operated.
- FIG. 4 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 2 of the present invention.
- FIG. 5 is a front view showing the safety device of FIG.
- FIG. 6 is a front view showing the safety device during the operation of FIG.
- FIG. 7 is a front view showing the driving unit of FIG.
- FIG. 8 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 3 of the present invention.
- FIG. 9 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 4 of the present invention.
- FIG. 10 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 5 of the present invention.
- FIG. 11 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 6 of the present invention.
- FIG. 12 is a configuration diagram showing another example of the elevator apparatus of FIG.
- FIG. 13 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 7 of the present invention. It is.
- FIG. 14 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 8 of the present invention.
- FIG. 15 is a front view showing another example of the driving section in FIG.
- FIG. 16 is a plan sectional view showing an emergency stop device according to Embodiment 9 of the present invention.
- FIG. 17 is a partially cutaway side view showing the safety device according to Embodiment 10 of the present invention.
- FIG. 18 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 11 of the present invention.
- FIG. 19 is a graph showing the car speed abnormality determination criteria stored in the storage unit of FIG.
- FIG. 20 is a graph showing the car acceleration abnormality determination criterion stored in the storage unit of FIG.
- FIG. 21 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 12 of the present invention.
- FIG. 22 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 13 of the present invention.
- FIG. 23 is a configuration diagram showing the cleat device and each rope sensor of FIG. 22.
- FIG. 24 is a configuration diagram showing a state where one main rope of FIG. 23 is broken.
- FIG. 25 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 14 of the present invention. .
- FIG. 26 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 15 of the present invention.
- FIG. 27 is a perspective view showing the car and the door sensor of FIG.
- FIG. 28 is a perspective view showing a state where the car doorway of FIG. 27 is open.
- FIG. 29 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 16 of the present invention.
- FIG. 30 is a configuration diagram showing the upper portion of the hoistway of FIG.
- FIG. 31 schematically shows an elevator apparatus according to Embodiment 17 of the present invention.
- FIG. 32 is a schematic configuration diagram illustrating the elevator rope slip detection device of FIG. 31.
- FIG. 33 is a main part configuration diagram showing a rope speed sensor of the elevator rope slip detecting device according to Embodiment 18 of the present invention.
- FIG. 34 is a main part configuration diagram showing a rope speed sensor of the elevator rope slip detecting device according to Embodiment 19 of the present invention.
- FIG. 35 is a main part configuration diagram showing a rope speed sensor of the elevator rope slip detection device according to Embodiment 20 of the present invention.
- FIG. 36 is a main part configuration diagram showing an elevator rope slip detection device according to Embodiment 21 of the present invention.
- FIG. 37 is a main part configuration diagram showing an elevator rope slip detection device according to Embodiment 22 of the present invention.
- FIG. 38 is a main part configuration diagram showing an elevator rope slip detection device according to Embodiment 23 of the present invention.
- FIG. 1 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 1 of the present invention.
- a pair of car guide rails 2 are installed in a hoistway 1.
- the car 3 is guided up and down the hoistway 1 by the car guide rails 2.
- a hoisting machine that raises and lowers the car 3 and the counterweight (not shown)
- the main rope 4 is wound around the drive sheave of the hoist.
- the car 3 and the counterweight are suspended in the hoistway 1 by the main rope 4.
- a pair of safety devices 5, which are braking means, are mounted so as to face each car guide rail 2.
- Each safety device 5 is arranged at the lower part of the car 3.
- the car 3 is braked by the operation of each safety device 5.
- a car speed detecting means for detecting the hoisting speed of the car 3 is provided.
- Governor 6, which is a The governor 6 has a governor body ⁇ and a governor sheave 8 rotatable with respect to the governor body 7.
- a rotatable pulley 9 is arranged at the lower end of the hoistway 1.
- a governor rope 10 connected to the car 3 is wound between the governor sheave 8 and the tensioner 9.
- the connecting part of the governor rope 10 with the car 3 is reciprocated with the car 3 in the vertical direction.
- the governor sheave 8 and the sheave 9 are rotated at a speed corresponding to the elevator speed of the car 3.
- the speed governor 6 operates the brake device of the hoisting machine when the elevator speed of the car 3 reaches a preset first overspeed. Also, the governor 6 has an output unit that outputs an operation signal to the safety gear 5 when the descending speed of the car 3 becomes a second overspeed (set overspeed) higher than the first overspeed.
- a certain switch section 11 is provided.
- the switch portion 11 has a contact portion 16 that is mechanically opened and closed by an overspeed lever that is displaced in accordance with the centrifugal force of the rotating governor sheave 8.
- the contact part 16 is electrically connected to the battery 12, which is an uninterruptible power supply that can supply power even during a power outage, and the control panel 13 that controls the operation of the elevator, using a power cable 14 and a connection cable 15, respectively. Have been.
- a control cable (moving cable) is connected between the car 3 and the control panel 13.
- the control cable includes an emergency stop wiring 17 electrically connected between the control panel 13 and each emergency stop device 5 together with a plurality of power lines and signal lines.
- the power from the battery 12 is passed through the power cable 14, the switch 11, the connection cable 15, the power supply circuit in the control panel 13, and the emergency stop wiring 17 by closing the contacts 16. Supplied to each safety gear 5.
- the transmission means has a connection cable 15, a power supply circuit in the control panel 13, and an emergency stop wiring 17.
- FIG. 2 is a front view showing the emergency stop device 5 of FIG. 1
- FIG. 3 is a front view showing the emergency stop device 5 at the time of operation of FIG.
- a support member 18 is fixed to the lower part of the car 3.
- the emergency stop device 5 is supported by a support member 18.
- each safety device 5 is connected to the wedge 19, which is a pair of braking members that can be brought into contact with and separated from the car guide rail 2, and displaces the wedge 19 with respect to the car 3.
- a pair of actuator portions 20 and a pair of guide portions 2 that are fixed to the support member 18 and guide the wedges 19 displaced by the actuator portion 20 in a direction in contact with the car guide rail 2.
- the pair of wedges 19, the pair of actuator sections 20 and the pair of guide sections 21 are respectively symmetrically arranged on both sides of the car guide rail 2.
- the guide portion 21 has an inclined surface 22 that is inclined with respect to the car guide rail 2 so that the distance from the car guide rail 2 decreases upward.
- the wedge 19 is displaced along the inclined surface 22.
- the actuator section 20 is provided with a spring 23, which is an urging section for urging the wedge 19 to the upper guide section 21 side, and a guide section 21 against the urging of the spring 23 by an electromagnetic force generated by energization. And an electromagnetic magnet 24 for displacing the wedge 19 downward so as to separate.
- the spring 23 is connected between the support member 18 and the wedge 19.
- the electromagnetic magnet 24 is fixed to the support member 18.
- the emergency stop wiring 17 is connected to the electromagnetic magnet 24.
- a permanent magnet 25 facing the electromagnetic magnet 24 is fixed to the wedge 19.
- Power is supplied to the electromagnetic magnet 24 from the battery 12 (see Fig. 1) by closing the contacts 16 (see Fig. 1).
- the emergency stop device 5 is actuated by shutting off the power to the electromagnetic magnet 24 by opening the contact portion 16 (see Fig. 1). That is, the pair of wedges 19 is displaced upward with respect to the car 3 by the elastic restoring force of the spring 23 and pressed against the car guide rail 2.
- the brake device of the hoist is activated.
- the contact portion 16 is opened.
- the power supply to the electromagnetic magnet 24 of each safety device 5 is cut off, and the wedge 19 is displaced upward with respect to the car 3 by the bias of the spring 23.
- the wedge 19 is displaced along the inclined surface 22 while contacting the inclined surface 22 of the plan interior 21. Due to this displacement, the wedge 19 contacts the car guide rail 2 and is pressed.
- the wedge 19 is further displaced upward by the contact with the guide rail 2 and is inserted between the car guide rail 2 and the guide portion 21. This allows the car guide rail 2 and wedge 19 A large frictional force is generated in between, and car 3 is braked (Fig. 3).
- the car 3 is raised while the electromagnetic magnet 24 is energized by closing the contacts 16. As a result, the wedge 19 is displaced downward and is separated from the car guide rail 2.
- the emergency stop device 5 includes an actuator section 20 for displacing the wedge 19 to the upper guide section 21 side and an inclined surface for guiding the wedge 19 to be displaced upward in a direction in contact with the car guide rail 2. Since the guide portion 21 including the second 22 is provided, the pressing force of the wedge 19 against the car guide rail 2 can be surely increased when the car 3 is lowered.
- the actuator section 20 has a spring 23 for urging the wedge 19 upward and an electromagnetic magnet 24 for displacing the wedge 19 downward against the urging of the spring 23.
- the wedge 19 can be displaced with a simple configuration.
- FIG. 4 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 2 of the present invention.
- the car 3 has a car main body 27 provided with a car doorway 26 and a car door 28 for opening and closing the car doorway 26.
- the hoistway 1 is provided with a car speed sensor 31 which is a car speed detecting means for detecting the speed of the car 3.
- the control panel 13 has an output section 32 electrically connected to the car speed sensor 31.
- a battery 12 is connected to the output section 32 via a power cable 14. From the output section 32, electric power for detecting the speed of the car 3 is supplied to the car speed sensor. Sensor 31.
- the output unit 32 receives the speed detection signal from the car speed sensor 31.
- a pair of emergency stop devices 33 serving as braking means for braking the car 3 is mounted.
- the output section 32 and each safety device 33 are electrically connected to each other by an emergency stop wiring 17.
- the output unit 32 outputs an operation signal, which is electric power for operation, to the safety gear 33 when the speed of the car 3 is the second overspeed.
- the emergency stop device 33 is activated by input of an activation signal.
- the emergency stop device 33 includes a wedge 34 serving as a braking member that can be brought into contact with and separated from the car guide rail 2, an actuator portion 35 connected to a lower portion of the wedge 34, and an upper portion of the wedge 34. And a guide part 36 fixed to the car 3.
- the wedge 34 and the actuator section 35 are provided so as to be able to move up and down with respect to the guide section 36.
- the wedge 34 is displaced upward with respect to the guide portion 36, that is, is guided by the guide portion 36 in the direction in which it contacts the car guide rail 2 with the displacement toward the guide portion 36 side.
- the actuator section 35 includes a cylindrical contact section 37 that can be moved toward and away from the car guide rail 2, an operation mechanism 38 that displaces the contact section 37 in a direction that is moved toward and away from the car guide rail 2, It has a contact portion 37 and a support portion 39 for supporting the operating mechanism 38.
- the contact portion 37 is lighter than the wedge .34 so that it can be easily displaced by the actuating mechanism 38.
- the operating mechanism 38 is movable so that it can reciprocate between a contact position where the contact portion 37 is in contact with the car guide rail 2 and an open position where the contact portion 37 is separated from the car guide rail 2. It has a unit 40 and a drive unit 41 for displacing the movable unit 40.
- the support portion 39 and the movable portion 40 are provided with a support guide hole 42 and a movable guide hole 43, respectively.
- the inclination angles of the support guide hole 42 and the movable guide hole 43 with respect to the car guide rail 2 are different from each other.
- the contact portion 37 is slidably mounted in the support guide hole 42 and the movable guide hole 43.
- the contact portion 37 slides in the movable guide hole 43 with the reciprocal displacement of the movable portion 40, and is displaced along the longitudinal direction of the support guide hole 42.
- the contact portion 37 is at an appropriate angle with respect to the car guide rail 2. 04 007725 Contacted and separated.
- a horizontal guide hole 47 extending in the horizontal direction is provided at an upper portion of the support portion 39.
- the wedge 34 is slidably mounted in the horizontal guide hole 47. That is, the wedge 34 is reciprocally displaceable in the horizontal direction with respect to the support portion 39.
- the guide portion 36 has an inclined surface 44 and a contact surface 45 arranged so as to sandwich the car guide rail 2.
- the inclined surface 44 is inclined with respect to the car guide rail 2 so that the distance from the car guide rail 2 becomes smaller upward.
- the contact surface 45 can be moved toward and away from the car guide rail 2. Wedge 3 4 and actuator unit
- the wedge 34 is displaced along the inclined surface 44 with the upward displacement of the guide 35 relative to the guide portion 36.
- the wedge 34 and the contact surface 45 are displaced so as to approach each other, and the car guide rail 2 is sandwiched between the wedge 34 and the contact surface 45.
- FIG. 7 is a front view showing the driving section 41 of FIG.
- the driving section 41 has a disc spring 46 as an urging section attached to the movable section 40, and an electromagnetic magnet 48 for displacing the movable section 40 by an electromagnetic force caused by energization. ing.
- the movable portion 40 is fixed to a central portion of the disc spring 46.
- the disc spring 46 is deformed by the reciprocating displacement of the movable part 40.
- the biasing direction of the disc spring 46 is reversed between the contact position (solid line) and the separation position (two-dot broken line) of the movable part 40 due to the deformation caused by the displacement of the movable part 40. ing.
- the movable portion 40 is held at the contact position and the separation position by the bias of the disc spring 46. That is, the contact state and the separated state of the contact portion 37 with the car guide rail 2 are held by the urging of the disc spring 46.
- the electromagnetic magnet 48 has a first electromagnetic unit 49 fixed to the movable unit 40, and a second electromagnetic unit 50 arranged to face the first electromagnetic unit 49.
- the movable section 40 is displaceable with respect to the second electromagnetic section 50.
- the emergency stop wiring 17 is connected to the electromagnetic magnet 48.
- the first electromagnetic unit 49 and the second electromagnetic unit 50 generate an electromagnetic force by inputting an operation signal to the electromagnetic magnet 48 and are repelled by each other. That is, the first electromagnetic section 49 is moved by the input of an operation signal to the electromagnetic magnet 48.
- the output section 32 returns the return signal for the return after the operation of the emergency stop mechanism 5. Sometimes it is output.
- the first electromagnetic unit 49 and the second electromagnetic unit 50 are attracted to each other by the input of the return signal to the electromagnetic magnet 48.
- Other configurations are the same as in Embodiment 1.
- the movable part 40 is located at the separation position, and the contact part 37 is separated from the car guide rail 2 by the urging of the disc spring 46.
- the wedge 34 is separated from the car guide rail 2 by keeping a distance from the guide portion 36.
- the movable portion 40 is displaced to the contact position by the electromagnetic repulsion. Along with this, the contact portion 37 is displaced in a direction in which it comes into contact with the car guide rail 2. By the time the movable portion 40 reaches the contact position, the biasing direction of the disc spring 46 reverses to the direction in which the movable portion 40 is held at the contact position. Thereby, the contact portion 37 comes into contact with and is pressed against the car guide rail 2, and the wedge 34 and the actuator portion 35 are braked.
- the guide portion 36 Since the car 3 and the guide portion 36 descend without being braked, the guide portion 36 is displaced to the lower side of the wedge 34 and the actuator portion 35. Due to this displacement, the wedge 34 is guided along the inclined surface 44, and the car guide rail 2 is sandwiched between the wedge 34 and the contact surface 45. The wedges 34 are displaced further upward by the contact with the car guide rails 2 and inserted between the car guide rails 2 and the inclined surfaces 44. As a result, a large frictional force is generated between the car guide rail 2 and the wedge 34 and between the car guide rail 2 and the contact surface 45, and the car 3 is braked.
- the actuator section 35 has a contact section 37 that can be brought into contact with and separated from the car guide rail 2 and an operating mechanism 38 that displaces the contact section 37 in a direction that comes into contact with and separates from the car guide rail 2. Therefore, by making the weight of the contact portion 37 smaller than that of the wedge 34, the driving force of the operation mechanism 38 on the contact portion 37 can be reduced, and the size of the operation mechanism 38 can be reduced. . Further, by reducing the weight of the contact portion 37, the displacement speed of the contact portion 37 can be increased, and the time required for generation of the braking force can be reduced.
- the drive unit 41 has a disc spring 46 that holds the movable unit 40 at the contact position and the separation position, and an electromagnetic magnet 48 that displaces the movable unit 40 when energized,
- the energization of the electromagnetic magnet 48 only when the movable part 40 is displaced allows the movable part 40 to be reliably held at the contact position or the separation position.
- FIG. 8 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 3 of the present invention.
- a car doorway 26 is provided with a door opening / closing sensor 58 which is a door opening / closing detecting means for detecting the opening / closing state of the car door 28.
- An output unit 59 mounted on the control panel 13 is connected to 58 via a control cable. Further, a car speed sensor 31 is electrically connected to the output section 59. The speed detection signal from the car speed sensor 31 and the open / close detection signal from the door open / close sensor 58 are input to the output unit 59. In the output unit 59, the speed of the car 3 and the open / closed state of the car entrance 26 are grasped by the input of the speed detection signal and the open / close detection signal.
- the output section 59 is connected to an emergency stop device 33 via an emergency stop wiring 17.
- the output unit 59 is provided with a speed detection signal from the car speed sensor 31 and a door opening / closing sensor.
- An operation signal is output when the car 3 moves up and down with the car entrance 26 open in response to the open / close detection signal from the sa 58.
- the operation signal is transmitted to the safety device 33 through the safety wire 17.
- Other configurations are the same as those of the second embodiment.
- a car speed sensor 31 for detecting the speed of the car 3 and a door open / close sensor 58 for detecting the open / closed state of the car door 28 are electrically connected to the output unit 59,
- the operation signal is output from the output unit 59 to the safety device 33 when the car 3 descends with the car entrance 26 open, so that the car entrance 26 is open. Of the car 3 can be prevented from lowering.
- the emergency stop device 33 may be mounted upside down on the car 3. In this way, it is possible to prevent the car 3 from rising when the car entrance 26 is open. Embodiment 4.
- FIG. 9 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 4 of the present invention.
- the main rope 4 has a cutting detection lead 61 inserted therein, which is a rope breakage detecting means for detecting a break in the main rope 4.
- a weak current is flowing through the disconnection detection conductor 61. Whether or not the main rope 4 has been cut is detected by whether or not a weak current is applied.
- the output section 62 mounted on the control panel 13 is electrically connected to the disconnection detection lead 61.
- a rope disconnection signal which is a disconnection signal for energizing the disconnection detection conductor 61, is input to the output unit 62.
- the car speed sensor 31 is electrically connected to the output unit 62.
- the output unit 62 is connected to an emergency stop device 33 via an emergency stop wiring 17.
- the output section 62 outputs an operation signal when the main rope 4 is cut, based on a speed detection signal from the car speed sensor 31 and a rope cutting signal from the cutting detection lead 61.
- the operation signal is transmitted to the safety device 33 through the safety wire 17.
- Other configurations are the same as those of the second embodiment.
- a car speed sensor 31 for detecting the speed of the car 3 and a disconnection detecting lead 61 for detecting the disconnection of the main rope 4 are electrically connected to the output section 62.
- an operation signal is output from the output unit 62 to the safety device 33, so that the speed of the car 3 and the cut of the main rope 4 are detected.
- the car 3 descending at an abnormal speed can be more reliably braked.
- a method of detecting the presence or absence of energization of the disconnection detection lead wire 61 passed through the main rope 4 is used as the rope disconnection detection means.
- a method of measuring a change may be used. In this case, a tension measuring device will be installed at the main rope 4 rope stop.
- FIG. 10 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 5 of the present invention.
- a car position sensor 65 which is a car position detecting means for detecting the position of the car 3 is provided in the hoistway 1.
- the car position sensor 65 and the car speed sensor 31 are electrically connected to an output unit 66 mounted on the control panel 13.
- the output unit 66 has a memory unit 67 storing a control pattern including information such as the position, speed, acceleration / deceleration, and stop floor of the car 3 during normal operation.
- the output unit 66 receives the speed detection signal from the car speed sensor 31 and the car position signal from the car position sensor 65.
- the output unit 66 is connected to an emergency stop device 33 via an emergency stop wiring 17.
- the speed and position (measured value) of the car 3 based on the speed detection signal and the car position signal, and the speed and position (set value) of the car 3 based on the control pattern stored in the memory unit 67 Are to be compared.
- the output unit 66 outputs an operation signal to the safety gear 33 when the deviation between the measured value and the set value exceeds a predetermined threshold.
- the predetermined threshold value is a deviation between a minimum actually measured value and a set value for the car 3 to stop without colliding with the end of the hoistway 1 by normal braking.
- Other configurations are the same as those of the second embodiment.
- the output unit 66 is activated when the deviation between the measured value from the car speed sensor 31 and the car position sensor 65 and the set value of the control pattern exceeds a predetermined threshold. Since a signal is output, collision of the car 3 with the end of the hoistway 1 can be prevented.
- FIG. 11 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 6 of the present invention.
- an upper car 71 which is a first car
- a lower car 72 which is a second car located below the upper car 71
- the upper car 7 1 and the lower car 7 2 are guided by the car guide rails 2 and moved up and down in the hoistway 1.
- a first hoist (not shown) for raising and lowering the upper car 71 and the counterweight for the upper car (not shown), and a counterweight for the lower car 72 and the lower car.
- a second hoist (not shown) for raising and lowering (not shown) is installed.
- a first main rope (not shown) is wound around the drive sheave of the first hoist.
- a second main rope (not shown) is wound around the drive sheep of the second hoist.
- the upper car 71 and the counterweight for the upper car are suspended by the first main rope, and the lower car 72 and the counterweight for the lower car are suspended by the second main rope.
- an upper car speed sensor 73 and a lower car speed sensor 74 which are car speed detecting means for detecting the speed of the upper car 71 and the speed of the lower car 72.
- an upper car position sensor 75 and a lower car position sensor 76 which are car position detecting means for detecting the position of the upper car 71 and the position of the lower car 72, are provided.
- the car operation detecting means includes an upper car speed sensor 73, a lower car speed sensor 74, an upper car position sensor 75, and a lower car position sensor 76.
- the lower part of the upper car 71 is provided with an upper car emergency stop device 77 which is a braking means having the same configuration as the emergency stop device 33 used in the second embodiment.
- an emergency stop device 78 for the lower car which is a braking means having the same configuration as the emergency stop device 77 for the upper car, is mounted.
- An output unit 79 is mounted in the control panel 13.
- An upper car speed sensor 73, a lower car speed sensor 74, an upper car position sensor 75, and a lower car position sensor 76 are electrically connected to the output section 79.
- a battery 12 is connected to the output unit 79 via a power supply cape 14.
- Upper car speed detection signal from upper car speed sensor 73, Lower car speed detection signal from lower car speed sensor 74, Upper car position sensor The upper car position detection signal from the sensor 75 and the lower car position detection signal from the lower car position sensor 76 are input to the output unit 79. That is, the information from the car operation detecting means is input to the output unit 79.
- the output unit 79 is connected to an emergency stop device 77 for an upper car and an emergency stop device 78 for a lower car via an emergency stop wiring 17.
- the output unit 79 determines whether there is a collision of the upper car 71 or the lower car 72 with the end of the hoistway 1, and the upper car 71 and the lower car 72 based on the information from the car operation detecting means. It is designed to predict the presence or absence of a collision with the vehicle, and to output an operation signal to the upper car safety device 77 and the lower car safety device 78 when a collision is predicted.
- the emergency stop device 77 for the upper car and the emergency stop device 78 for the lower car are operated by inputting an operation signal.
- the monitoring section has a car operation detecting means and an output section 79.
- the running state of the upper car 71 and the lower car 72 is monitored by the monitoring unit.
- Other configurations are the same as those of the second embodiment.
- the output unit 79 receives information from the car operation detection means and outputs it to the output unit 79 to determine whether the upper car 71 or the lower car 72 has collided with the end of the hoistway 1, and whether the upper car 7 It is predicted whether there is a collision between 1 and the lower car 7 2. For example, the collision between the upper car 7 1 and the lower car 7 2 due to the cutting of the first main rope suspending the upper car 7 1 is output from the output section. An operation signal is output to the emergency stop device 7 7 and the emergency stop device 7 8 for the lower car. Thus, emergency stop for the upper car 7 7 and safety gear 7 8 for the lower car is actuated, the upper car 71 and the lower car 7 2 is braked.
- the monitoring unit moves up and down the same hoistway 1
- the car motion detection means that detects the actual movement of each of 7 1 and 7 2 and the information from the car motion detection means predicts the presence or absence of a collision between the upper car 7 1 and the lower car 7 2 and collides. It has an output part 7 9 that outputs an operation signal to the upper car emergency stop device 7 7 and the lower car emergency stop device 7 8 when it is predicted that the upper car 7 1 and the lower car 7 2 The upper car 7 1 and the lower car, even if their respective speeds have not reached the set overspeed
- the emergency stop device 7 7 for the upper car and the emergency stop device 7 8 for the lower car can be operated, and the collision between the upper car 7 1 and the lower car 7 2 can be prevented. Can be avoided.
- the car operation detecting means has an upper car speed sensor 73, a lower car speed sensor 74, an upper car position sensor 75, and an upper car position sensor 76
- the upper car 71 and the lower car 7 The actual movement of each of the two can be easily detected with a simple configuration.
- the output unit 79 is mounted in the control panel 13.
- the output unit 79 may be mounted on each of the upper car 71 and the lower car 72.
- the upper car speed sensor 73, the lower car speed sensor 74, the upper car position sensor 75, and the lower car position sensor 76 are output from the upper car 71. It is electrically connected to both the unit 79 and the output unit 79 mounted on the lower car 72, respectively.
- the output unit 79 outputs an operation signal to both the upper car emergency stop device 77 and the lower car emergency stop device 78, but the car operation detection means According to the information from, the operation signal may be output to only one of the upper car safety device 77 and the lower car safety device 78. In this case, the output unit 79 predicts whether there is a collision between the upper car 71 and the lower car 72, and also determines whether there is an abnormality in the movement of each of the upper car 71 and the lower car 72. . The operation signal is output from the output section 79 to only the emergency stop device mounted on the abnormally moving one of the upper car 71 and the lower car 72.
- Embodiment 7 Embodiment 7
- FIG. 13 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 7 of the present invention.
- the upper car 71 has an output section 81 for an upper car, which is an output section
- the lower car 72 has an output section 82 for a lower car, which is an output section.
- An upper car speed sensor 73, an upper car position sensor 75, and a lower car position sensor 76 are electrically connected to the upper car output section 81.
- a lower car speed sensor 74, a lower car position sensor 76, and an upper car position sensor 75 are electrically connected to the lower car output unit 82.
- the upper car output section 81 is electrically connected to an upper car emergency stop device 77 via upper car emergency stop wiring 83 which is a transmission means installed in the upper car 71. Ma
- the output section 81 for the upper car is provided with information from the upper car speed sensor 73, the upper car position sensor 75, and the lower car position sensor 76 (hereinafter, in this embodiment,
- Presence of collision with the lower car 7 2 is predicted based on the “detection information for the upper car”), and an operation signal is output to the upper car emergency stop device 77 7 when a collision is predicted. It is like that. Furthermore, the upper car output unit 81 assumes that the lower car 72 is traveling to the upper car 71 at the maximum speed during normal operation when the upper car detection information is input. It is designed to predict the presence or absence of a collision with the upper car 7 1 and the lower car 7 2.
- the lower car output section 82 is electrically connected to a lower car emergency stop device 78 via lower car emergency stop wiring 84 which is a transmission means installed in the lower car 72.
- the lower car output section 82 outputs information from the lower car speed sensor 74, the lower car position sensor 76, and the upper car position sensor 75 (hereinafter, in this embodiment,
- Detection information for lower car to predict the presence or absence of a collision with the upper car 71 of the lower car 72, and output an activation signal to the lower car safety gear 78 when a collision is predicted. It is like that. Furthermore, the lower car output unit 82 assumes that the upper car 71 is traveling to the lower car 72 at the maximum speed during normal operation when the lower car detection information is input. It is designed to predict the collision of the lower car 7 2 with the upper car 7 1.
- the operation of the upper car 71 and the lower car 72 is normally controlled at a sufficient distance from each other so that the upper car safety device 77 and the lower car safety device 78 do not operate.
- Other configurations are the same as those of the sixth embodiment.
- FIG. 14 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 8 of the present invention.
- an upper car 71 and a lower car 72 carry a car distance sensor 91 which is a car distance detecting means for detecting a distance between the upper car 71 and the lower car 72.
- the car distance sensor 91 has a laser irradiating unit mounted on the upper car 71 and a reflecting unit mounted on the lower car 72. The distance between the upper car 71 and the lower car 72 is determined by the car distance sensor 91 based on the round trip time of the laser light between the laser irradiation section and the reflection section.
- An upper car speed sensor 73, a lower car speed sensor 74, an upper car position sensor 75, and a car distance sensor 91 are electrically connected to the upper car output unit 81.
- An upper car speed sensor 73, a lower car speed sensor 74, a lower car position sensor 76, and a car distance sensor 91 are electrically connected to the lower car output unit 82.
- the output section 81 for the upper car is composed of information from the upper car speed sensor 73, the lower car speed sensor 74, the upper car position sensor 75, and the car distance sensor 91 (hereinafter, this embodiment) ,
- the upper car 71 detects the presence or absence of a collision with the lower car 72, and when a collision is predicted, sends an operation signal to the upper car emergency stop device 77. Output.
- the lower car output unit 82 is used to output information from the upper car speed sensor 73, the lower car speed sensor 74, the lower car position sensor 76, and the car distance sensor 91 (hereinafter, in this embodiment, , "Detection information for lower car”), lower car 7 2 upper car
- the output unit 79 predicts the presence or absence of a collision between the upper car 71 and the lower car 72 based on the information from the distance sensor 91 between the cars. This makes it possible to more reliably predict the presence or absence of collision between 7 1 and the lower car 7 2.
- the door opening / closing sensor 58 of the third embodiment may be applied to the elevator apparatus according to the sixth to eighth embodiments so that an open / close detection signal is input to an output unit.
- the disconnection detection conductor 61 may be applied so that the rope disconnection signal is input to the output unit.
- the driving unit is driven by using the electromagnetic repulsive force or the electromagnetic attractive force of the first electromagnetic unit 49 and the first electromagnetic unit 50. May be driven by using eddy current generated in the repulsion plate.
- a pulse current is supplied to the electromagnetic magnet 48 as an operation signal, and the eddy current generated in the repulsion plate 51 fixed to the movable portion 40 and the electromagnetic magnet 4 Due to the interaction with the magnetic field from 8, the movable part 40 is displaced.
- the car speed detecting means is provided in the hoistway 1, but may be mounted on the car. In this case, the speed detection signal from the car speed detection means is transmitted to the output unit via the control cable.
- Embodiment 9 is provided in the hoistway 1, but may be mounted on the car. In this case, the speed detection signal from the car speed detection means is transmitted to the output unit via the control cable.
- FIG. 16 is a plan sectional view showing an emergency stop device according to Embodiment 9 of the present invention.
- the emergency stop device 155 is provided with a wedge 34, an actuator portion 156 connected to a lower portion of the wedge 34, and a guide fixed above the wedge 34 and fixed to the car 3. Part 36.
- the actuator section 15 6 is vertically movable together with the wedge 34 with respect to the guide section 36.
- the actuator section 156 includes a pair of contact sections 157 that can be brought into contact with and separated from the car guide rail 2, and a pair of link members 158 a and 158, respectively connected to the contact sections 157.
- Actuator 15 that displaces 15 8b and link member 15 8a in the direction in which each contact portion 15 7 contacts and separates from car guide rail 2 with respect to the other link member 15 8b.
- a support portion 160 supporting the contact portions 157, the link members 158a and 158b, and the operating mechanism 159.
- a horizontal shaft 170 passed through a wedge 34 is fixed to the support portion 160. The wedge 34 can be reciprocated horizontally with respect to the horizontal axis 170.
- the link members 158a and 158b cross each other at a portion from one end to the other end. Further, the supporting portion 160 has a connecting member 1 rotatably connecting the link members 158a, 158b at the crossed portions of the link members 158a, 158b. 6 1 is provided. Further, one link member 158a is provided rotatably about the connecting portion 161 with respect to the other link member 158b.
- Each of the contact portions 157 is displaced in a direction in which the other end portions of the link members 158a and 158b are displaced in a direction approaching each other, thereby coming into contact with the car guide rail 2. Further, each contact portion 157 is displaced in the direction away from the car guide rail 2 by the other end of the link member 158a, 158b being displaced away from each other.
- the operating mechanism 159 is arranged between the other ends of the link members 158a and 158b.
- the operating mechanism 159 is supported by the link members 158a and 158b. Further, the operating mechanism 159 is fixed to the rod-shaped movable portion 162 connected to one link member 158a and the other link member 158b, and travels through the movable portion 162. And a drive unit 163 for performing reverse displacement.
- the movable part 16 2 includes a movable core 1 64 housed in the driving part 16 3 and a movable core 1
- each contact part 15 7 contacts the car guide rail 2 and the separation position where each contact part 15 7 is separated from the car guide rail 2. Reciprocating displacement is possible.
- the driving part 16 3 is a pair of restricting parts 16 6 a, 1
- the fixed core 1 66 surrounding the movable core 1 64 including the side wall 1 66 c connecting the 6 6 b and each regulating section 1 66 a, 1 66 b to each other, and the inside of the fixed core 1 66 Housed and energized
- the first coil 16 7 that displaces the movable iron core 16 4 in the direction in contact with one of the restriction members 16 6 a, and is accommodated in the fixed iron core 16 6.
- One restricting portion 166a is arranged such that the movable iron core 164 is in contact with the movable portion 162 when the movable portion 162 is at the separated position. Further, the other restricting portion 166b is arranged such that the movable iron core 164 contacts the movable portion 162 when the movable portion 162 is at the contact position.
- the first coil 167 and the second coil 168 are annular electromagnetic coils surrounding the movable part 162. Also, the first coil 16 7 is disposed between the permanent magnet 16 9 and one restricting portion 16 a, and the second coil 16 8 is disposed between the permanent magnet 16 9 and the other restricting portion 16 6 a. b.
- the second coil 168 is configured to receive power as an operation signal from the output unit 32.
- the second coil 1668 is configured to generate a magnetic flux that opposes a force that holds the movable core 164 in contact with one of the restricting portions 166a by input of an operation signal.
- the first coil 167 is configured to receive power as a return signal from the output unit 32.
- the first coil 1667 generates a magnetic flux against a force for holding the movable core 164 in contact with the other regulating portion 166b by inputting a return signal.
- Other configurations are the same as those of the second embodiment.
- the movable part 16 2 is located at the separated position, and the movable iron core 16 4 is in contact with one restricting part 16 66 a by the holding force of the permanent magnet 16 9.
- the wedge 34 is spaced from the guide portion 36 and is separated from the car guide rail 2. I have.
- an operation signal is output from the output unit 32 to each of the safety gears 155, so that the second coil 168 is energized.
- a magnetic flux is generated around the second coil 168, and the movable iron core 164 is displaced in a direction approaching the other regulating portion 166b, and displaced from the separated position to the contact position.
- the contact portions 157 are displaced toward each other and come into contact with the car guide rail 2.
- the wedge 34 and the actuator 155 are braked.
- the guide section 36 continues to descend, approaching the wedge 34 and the actuator section 1555.
- the wedge 34 is guided along the inclined surface 44, and the car guide rail 2 is sandwiched between the wedge 34 and the contact surface 45.
- the operation is performed in the same manner as in the second embodiment, and the car 3 is braked.
- the operating mechanism 159 is configured to displace the pair of contact portions 157 via the link members 158a, 158b, and thus the second embodiment differs from the second embodiment. The same effect can be obtained, and the number of operating mechanisms 159 for displacing the pair of contact portions 157 can be reduced.
- FIG. 17 is a partially cutaway side view showing the safety device according to Embodiment 10 of the present invention.
- the emergency stop device 175 is arranged above the wedge 34, the actuator portion 176 connected to the lower portion of the wedge 34, and the wedge 34, and is fixed to the car 3. Guide portion 36.
- Actuator section 176 has an operation mechanism 159 having the same configuration as that of the ninth embodiment, and a link member 177 which is displaced by the displacement of movable section 162 of operation mechanism 159. are doing.
- the operation mechanism 159 is fixed to the lower part of the car 3 so that the movable part 162 is reciprocated in the horizontal direction with respect to the car 3.
- the link member 177 is rotatably provided on a fixed shaft 180 fixed to the lower part of the car 3.
- the fixed shaft 180 is disposed below the operating mechanism 159.
- the link member 177 has a first link portion 18 and a second link portion 179 extending in different directions from the fixed shaft 180 as a starting point, and has an overall shape of the link member 177. In most cases, it is shaped like a letter. That is, the second link portion 179 is fixed to the first link portion 178, and the first link portion 178 and the second link portion 179 are fixed around the fixed shaft 180. It can rotate integrally.
- the length of the first link portion 178 is longer than the length of the second link portion 179.
- an elongate hole 182 is provided at the distal end of the first link portion 178.
- a slide bin 183 slidably passed through the elongated hole 182 is fixed. That is, a wedge 34 is slidably connected to the distal end of the first link portion 178.
- the distal end of the movable portion 162 is rotatably connected to the distal end of the second link portion 179 via a connecting pin 181.
- the link member 177 has the wedge 34 inserted between the car guide rail and the guide portion 36, and an open position where the wedge 34 is opened below the guide portion 36. Reciprocating displacement between the operating position is possible.
- the movable part 162 projects from the driving part 163 when the link member 177 is at the separation position, and is retreated to the driving part 163 when the link member 177 is at the operating position. ing.
- the link member 177 is located at the separated position due to the retreat of the movable part 162 to the drive part 163. At this time, the wedge 34 is kept apart from the guide portion 36 and is separated from the car guide rail.
- an operation signal is output from the output unit 32 to each of the emergency stop devices 1. Is output to 75, and the movable part 16 2 is advanced. As a result, the link member 177 is rotated about the fixed shaft 180 and is displaced to the operating position. As a result, the wedges 34 come into contact with the guides 36 and the car guide rails, and are inserted between the guides 36 and the car guide rails. As a result, the car 3 is braked.
- a return signal is transmitted from the output unit 32 to the safety device 175, and the movable unit 162 is urged in the backward direction.
- the car 3 is raised to release the wedge 34 from being inserted between the guide portion 36 and the car guide rail.
- Such an elevator apparatus also has the same effect as in the second embodiment.
- FIG. 18 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 11 of the present invention.
- a hoisting machine 101 as a driving device and a control panel 102 electrically connected to the hoisting machine 101 and controlling the operation of the elevator are installed in the upper part of the hoistway 1.
- the hoisting machine 101 has a driving device main body 103 including a motor, and a driving sheave 104 around which a plurality of main ropes 4 are wound and rotated by the driving device main body 103. ing.
- the hoisting machine 101 has a deflecting wheel 105 around which each main rope 4 is wound and a hoist which is a braking means for braking the rotation of the drive sheave 104 to decelerate the car 3.
- Machine braking device (braking device for deceleration) 106 is provided.
- the car 3 and the counterweight 107 are suspended in the hoistway 1 by each main rope 4.
- the car 3 and the counterweight 107 are moved up and down in the hoistway 1 by driving the hoist 101.
- the emergency stop device 33, the hoisting machine brake device 106, and the control panel 102 are electrically connected to a monitoring device 108 that constantly monitors the status of the elevator.
- the monitoring device 108 includes a car position sensor 1 serving as a car position detecting unit for detecting the position of the car 3.
- a car speed sensor 110 that is a car speed detector that detects the speed of car 3
- a car acceleration sensor 1 11 1 that is a car acceleration detector that detects the acceleration of car 3, respectively. It is connected.
- the car speed sensor 111 is provided in the hoistway 1.
- the detecting means 112 for detecting the state of the elevator includes a car position sensor 109, a car speed sensor 110, and a car acceleration sensor 111.
- the car position sensor 109 detects the position of the car 3 by measuring the amount of rotation of a rotating body that rotates following the movement of the car 3, and the displacement of the linear motion.
- a linear encoder that detects the position of car 3 by measuring the amount of light, or, for example, a projector and a light receiver that is provided in hoistway 1 and a reflector that is provided in car 3;
- An optical displacement measuring device that detects the position of the car 3 by measuring the time taken from the light to the light reception by the light receiver is exemplified.
- the monitoring device 108 has a storage unit (memory unit) in which a plurality of (two in this example) abnormality determination criteria (setting data) serving as criteria for determining the presence or absence of an elevator abnormality are stored in advance. 13 and an output unit (arithmetic unit) 114 for detecting the presence / absence of an abnormality in the elevator based on the respective information in the detecting means 112 and the storage unit 113.
- the car speed abnormality criterion which is the abnormality criterion for the speed of car 3
- the car acceleration abnormality criterion which is the abnormality criterion for the acceleration of car 3 are stored in the storage unit 113. I have.
- FIG. 19 is a graph showing the car speed abnormality determination criteria stored in the storage unit 113 of FIG.
- the elevator section of the car 3 in the hoistway 1 includes a car 3 where the car 3 is accelerated or decelerated near the other terminal floor.
- a deceleration section and a 'constant speed section where the car 3 moves at a constant speed between the acceleration / deceleration sections are provided.
- the car speed abnormality judgment criterion includes the normal speed detection pattern (normal level) 1 15 which is the speed of car 3 during normal operation, and the first speed which is larger than the normal speed detection pattern 1 15.
- Normal speed detection pattern 1 15, 1st abnormal speed detection pattern 1 16 and 2nd abnormal speed detection pattern 1 17 Each is set so as to decrease continuously toward the terminal floor.
- the difference between the 1st abnormal speed detection pattern 1 16 and the normal speed detection pattern 1 15 and the difference between the 2nd abnormal speed detection pattern 1 17 and the 1st abnormal speed detection pattern 1 16 Each is set to be almost constant at all locations in the area.
- FIG. 20 is a graph showing the car acceleration abnormality determination criteria stored in the storage unit 113 of FIG.
- the car acceleration abnormality determination criterion includes a normal acceleration detection pattern (normal level) 118, which is the acceleration of the car 3 during normal operation, and a value larger than the normal acceleration detection pattern 118.
- 1 Abnormal acceleration detection pattern (1st abnormal level) 1 19 and 2nd abnormal acceleration detection pattern (2nd abnormal level) 1 2 0 and a value larger than 1st abnormal acceleration detection pattern 1 19 Each is set to correspond to the position of car 3.
- the normal acceleration detection pattern 1 18, the first abnormal acceleration detection pattern 1 19 and the second abnormal acceleration detection pattern 1 220 have a positive value in one acceleration / deceleration section so that the value becomes zero in the constant speed section. In the other acceleration and deceleration sections, each is set to be a negative value.
- the difference between the 1st abnormal acceleration detection pattern 1 19 and the normal acceleration detection pattern 1 18 and the difference between the 2nd abnormal acceleration detection pattern 1 20 and the 1st abnormal acceleration detection pattern 1 19 Are set so that they are almost constant at all positions.
- the normal speed detection pattern 1 15, the first abnormal speed detection pattern 1 16, and the second abnormal speed detection pattern 1 17 are stored in the storage unit 113 as the car speed abnormality judgment criteria
- the acceleration detection pattern 1 18, the first abnormal acceleration detection pattern 1 19, and the second abnormal acceleration detection pattern 1 20 are stored as car acceleration abnormality determination criteria.
- the output section 114 has an emergency stop device 33, a control panel 102, a hoisting machine
- the output section 114 receives a position detection signal from the car position sensor 109, a speed detection signal from the car speed sensor 110, and an acceleration detection signal from the car acceleration sensor 111. Each is continuously input over time.
- the output section 1 1 4 The position of the car 3 is calculated based on the input of the signal, and the speed of the car 3 and the acceleration of the car 3 are determined based on the input of the speed detection signal and the acceleration detection signal. Each is calculated as an abnormality determination factor.
- the output unit 114 outputs the hoist when the speed of the car 3 exceeds the first abnormal speed detection pattern 1 16 or when the acceleration of the car 3 exceeds the first abnormal acceleration detection pattern 1 19. It outputs an operation signal (trigger signal) to the brake device 104.
- the output unit 114 outputs a stop signal for stopping the drive of the hoisting machine 101 to the control panel 102 simultaneously with the output of the operation signal to the hoisting machine brake device 104. It is supposed to. Further, the output unit 114 outputs a signal when the speed of the car 3 exceeds the second abnormal speed detection pattern 1 17 or when the acceleration of the car 3 exceeds the second abnormal acceleration detection pattern 120.
- An operation signal is output to the upper machine brake device 104 and the emergency stop device 33. That is, the output unit 114 determines the braking means that outputs the operation signal according to the degree of abnormality in the speed and acceleration of the car 3.
- a position detection signal from the car position sensor 109, a speed detection signal from the car speed sensor 110, and a caro speed detection signal from the car acceleration sensor 111 are input to the output unit 114.
- the output unit 114 calculates the position, speed, and acceleration of the car 3 based on the input of each detection signal. After that, the output unit 114 outputs the car speed abnormality judgment criterion and the car acceleration abnormality judgment criterion respectively obtained from the storage unit 113 and the speed and the speed of the car 3 calculated based on the input of each detection signal.
- the acceleration and the acceleration are compared to detect whether or not each of the speed and the acceleration of the car 3 is abnormal.
- the speed of car 3 has almost the same value as the normal speed detection pattern, and the acceleration of car 3 has almost the same value as the normal acceleration detection pattern. It is detected that there is no abnormality in each of the speed and the acceleration of the car 3, and the normal operation of the elevator is continued.
- the output section 1 1 4 will indicate that the speed of car 3 is abnormal.
- the operation signal is output from the output unit 114 to the hoisting machine brake device 106, and the stop signal is output to the control panel 102.
- the hoisting machine 101 is stopped, and at the same time, the hoisting machine brake device 106 is operated, and the rotation of the drive sheep 104 is braked.
- the operation signal and the stop signal are transmitted to the hoisting machine brake device 106 and the control panel 102.
- the output is output from the output sections 114, respectively, and the rotation of the drive sheave 104 is braked.
- the operation signal to the hoisting machine brake device 106 is activated.
- An output signal is output from the output section 114 to the safety device 33 while maintaining the output of. As a result, the emergency stop device 33 is operated, and the car 3 is braked by the same operation as in the second embodiment.
- the hoisting machine brake device 106 While maintaining the output of the operation signal, the operation signal is output from the output section 1 14 to the safety device 33, and the safety device 33 is operated.
- the monitoring device 108 obtains the speed of the car 3 and the acceleration of the car 3 based on the information from the detecting means 112 for detecting the state of the elevator, and the obtained car 3
- an operation signal is output to at least one of the brake device 106 for the hoisting machine and the emergency stop device 33 when the abnormality is determined.
- the detection of elevator abnormalities by the monitoring device 108 can be performed earlier and more reliably, and the time required from the occurrence of an elevator abnormality to the generation of braking force on the car 3 is reduced. can do.
- the presence or absence of abnormality in a plurality of types of abnormality determination factors such as the speed of the car 3 and the acceleration of the car 3 is separately determined by the monitoring device 108.
- the time required from the occurrence of an abnormality of the elevator to the generation of the braking force on the car 3 can be shortened.
- the monitoring device 108 also controls the speed of the car 3 to determine whether the speed of the car 3 is abnormal. It has a storage unit that stores the abnormality judgment criteria and the car acceleration abnormality judgment criteria for determining whether there is an abnormality in the acceleration of the car 3 and the acceleration of the car 3. It is possible to easily change the criteria for determining whether there is an abnormality in the vehicle, and easily respond to changes in the design of the elevator.
- the car speed abnormality determination criteria include a normal speed detection pattern 1 15, a first abnormal speed detection pattern 1 16 set to a value larger than the normal speed detection pattern 1 15, and a first abnormal speed detection pattern.
- the second abnormal speed detection pattern 1 17 which is set to a value larger than 1 16 is set, and the monitoring device 1 when the speed of car '3 exceeds the first abnormal speed detection pattern 1 16
- An operation signal is output from 08 to the brake device 106 for the hoisting machine, and when the speed of the car 3 exceeds the second abnormal speed detection pattern 1 17 the monitoring device 1 08 brakes the hoisting machine. Since an operation signal is output to the device 106 and the safety device 33, the car 3 can be braked stepwise according to the magnitude of the speed abnormality of the car 3. Therefore, the frequency of applying a large impact to the car 3 can be reduced, and the car 3 can be stopped more reliably.
- the car acceleration abnormality determination criterion includes a normal acceleration detection pattern 1 18 and a first abnormal acceleration detection pattern set to a value larger than the normal acceleration detection pattern 1 18.
- An operation signal is output to 106, and the acceleration of car 3 is changed to the second abnormal speed detection pattern 1 2
- the operation signal is output from the monitoring device 108 to the brake device 106 for the hoisting machine and the safety device 33, so the magnitude of the abnormal acceleration of the car 3
- the car 3 can be braked gradually according to Usually, the acceleration of the car 3 becomes abnormal before the speed of the car 3 becomes abnormal, so the frequency of applying a large impact to the car 3 can be further reduced and the car 3 can be stopped more reliably. Can be done. '
- the 1st abnormal speed detection pattern 1 16 and the 2nd abnormal speed detection pattern 1 17 can be set to correspond to the normal speed detection pattern 1 15 at all positions in the elevator section of the car 3. . Therefore, especially in the acceleration / deceleration section, the value of the normal speed detection pattern 1 15 is small, so each of the first abnormal speed detection pattern 1 16 and the second abnormal speed detection pattern 1 17 must be set to relatively small values. The impact on the car 3 due to braking can be reduced.
- the car speed sensor 110 is used by the monitoring device 108 to obtain the speed of the car 3, but the car position sensor is used without using the car speed sensor 110.
- the speed of the car 3 may be derived from the position of the car 3 detected by the sensor 109. That is, the speed of the car 3 may be obtained by differentiating the position of the car 3 calculated based on the position detection signal from the car position sensor 109.
- the car acceleration sensor 111 is used by the monitoring device 108 to acquire the acceleration of the car 3, but the car position sensor 1 11 is used without using the car acceleration sensor 111.
- the acceleration of the car 3 may be derived from the position of the car 3 detected by 09. That is, the acceleration of the car 3 may be obtained by differentiating the position of the car 3 calculated by the position detection signal from the car position sensor 109 twice.
- the output unit 114 determines the braking means that outputs the operation signal in accordance with the degree of abnormality in the speed and acceleration of the car 3 which is each abnormality determination element.
- the braking means for outputting the operation signal may be determined in advance for each abnormality determining element. Embodiment 1 2.
- FIG. 21 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 12 of the present invention.
- a plurality of hall call buttons 125 are provided at the hall on each floor.
- a plurality of destination floor buttons 1 26 are provided.
- the monitoring device 127 has an output part 114.
- the output unit 114 is provided with an abnormality criterion generator 1 that generates a criterion for determining a car speed abnormality and a criterion for determining a car acceleration abnormality
- the reference generation device 128 receives a position detection signal from a car position sensor 109 via an output unit 114.
- the abnormality determination criterion generation device 1 2 8 is a storage unit that stores a plurality of car speed abnormality determination criteria and a plurality of car acceleration abnormality determination criteria, which are abnormality determination criteria for all cases where the car 3 moves up and down between floors.
- (Memory unit) One by one, the car speed abnormality judgment standard and the car acceleration abnormality judgment standard are selected one by one from the storage unit, and the selected car speed abnormality judgment standard and car acceleration abnormality judgment standard are output.
- a generation unit 130 for outputting to the unit 114.
- each car speed abnormality determination criterion a three-stage detection pattern similar to the car speed abnormality determination criterion shown in FIG. 19 of Embodiment 11 is set in association with the position of car 3. Further, in each car acceleration abnormality determination criterion, a three-stage detection pattern similar to the car acceleration abnormality determination criterion shown in FIG. 20 of Embodiment 11 is set corresponding to the position of car 3.
- the generation unit 130 calculates the detected position of the car 3 based on the information from the car position sensor 109, and outputs the information from at least one of the hall call buttons 125 and the destination floor buttons 126. Is used to calculate the destination floor of car 3. Further, the generation unit 130 selects one of the car speed abnormality judgment criterion and the car acceleration abnormality judgment criterion one by one with the calculated detection position and destination floor as one and the other end floors. Other configurations are the same as those of the eleventh embodiment.
- the position detection signal is constantly input to the generation unit 130 from the car position sensor 109 via the output unit 114.
- any one of the hall call buttons 1 25 and the destination floor button 1 26 is selected by a passenger or the like, for example, and a call signal is input from the selected button to the generation unit 130
- the generation unit 130 Based on the input of the position detection signal and the call signal, the detection position and the destination floor of the car 3 are calculated, and the car speed abnormality judgment criterion and the car acceleration abnormality judgment criterion are selected one by one. Thereafter, the generator 130 outputs the selected car speed abnormality determination criterion and the car acceleration abnormality determination criterion to the output unit 114.
- the output unit 114 detects the presence or absence of abnormality in the speed and acceleration of the car 3 in the same manner as in the embodiment 11. Subsequent operations are the same as in the ninth embodiment.
- the abnormality determination criterion generation device generates a car speed abnormality determination criterion and a car acceleration determination criterion based on information from at least one of the hall call button 125 and the destination floor button 126. Therefore, it is possible to generate a car speed abnormality judgment criterion and a car acceleration abnormality judgment criterion corresponding to the destination floor, even if a different destination floor is selected, from the time of the elevator abnormality occurrence. The time required until the braking force is generated can be shortened.
- the generation unit 130 uses the plurality of car speed abnormality judgment criteria and the plurality of car acceleration abnormality judgment criteria stored in the storage unit 1229 to generate the car speed abnormality judgment criteria and the car acceleration abnormality judgment criteria.
- the abnormal speed detection pattern and the abnormal acceleration detection pattern are directly generated based on the normal speed pattern and the normal acceleration pattern of the car 3 generated by the control panel 102, respectively. You may.
- FIG. 22 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 13 of the present invention.
- each of the main ropes 4 is connected to the upper part of the car 3 by a cleat device 13 1.
- the monitoring device 108 is mounted on the top of the car 3.
- the output section 114 is provided with a car position sensor 109, a car speed sensor 110, and a girder device 131, and detects rope breakage for detecting whether or not each main rope 4 is broken.
- the plurality of rope sensors 13 2 are electrically connected to each other.
- the detecting means 112 has a car position sensor 109, a car speed sensor 110, and a rope sensor 132.
- Each of the rope sensors 13 2 outputs a break detection signal to the output section 114 when the main rope 4 breaks.
- the storage unit 113 stores the same car speed abnormality determination criterion as in the embodiment 11 as shown in FIG. 19 and the rope abnormality which is a criterion for determining whether there is an abnormality in the main rope 4.
- the judgment criteria are stored.
- the rope abnormality judgment criteria include a first abnormality level in which at least one main rope 4 is broken and a second abnormality level in which all main ropes 4 are broken. Are set respectively.
- the position of the car 3 is calculated based on the input of the position detection signal, and the speed of the car 3 and the state of the main rope 4 are determined based on the respective input of the speed detection signal and the break signal. Each is calculated as a type (two types in this example) of abnormality judgment factors.
- the output section 114 is for the hoisting machine when the speed of the car 3 exceeds the first abnormal speed detection pattern 1 16 (Fig. 19) or when at least one main rope 4 is broken.
- An operation signal (trigger signal) is output to the brake device 104.
- the output unit 114 is connected to the hoisting machine block when the speed of the car 3 exceeds the second abnormal speed detection pattern 117 (FIG.
- An operation signal is output to the rake device 104 and the safety device 33. That is, the output unit 114 determines the braking means that outputs the operation signal in accordance with the speed of the car 3 and the degree of abnormality in the state of the main ropes 4.
- FIG. 23 is a configuration diagram showing the cleat device 13 1 and each rope sensor 13 2 of FIG. 22.
- FIG. 24 is a configuration diagram showing a state where one main rope 4 of FIG. 23 has been broken.
- the cleat device 13 1 has a plurality of rope connecting portions 134 connecting each main rope 4 to the car 3.
- Each of the rope connecting portions 134 has an elastic spring 133 interposed between the main rope 4 and the car 3. The position of the car 3 with respect to each main rope 4 can be displaced by the expansion and contraction of each elastic spring 13.
- the rope sensor 13 2 is installed at each rope connection 1 34.
- Each rope sensor 13 2 is a displacement measuring device that measures the amount of extension of the elastic spring 13 3.
- Each rope sensor 13 2 constantly outputs a measurement signal corresponding to the amount of extension of the elastic spring 13 3 to the output unit 14.
- a measurement signal when the amount of elongation due to restoration of the elastic springs 133 reaches a predetermined amount is input to the output unit 114 as a break detection signal.
- a weighing device that directly measures the tension of each main rope 4 may be installed at each rope connection section 134 as a rope sensor.
- the output unit 114 calculates the position of the car 3, the speed of the car 3, and the number of breaks of the main rope 4 based on the input of each detection signal. .
- the output unit 114 outputs the car speed abnormality criterion and the rope abnormality criterion obtained from the storage unit 113, and the speed and the main speed of the car 3 calculated based on the input of each detection signal.
- the number of broken ropes 4 is compared with each other, and the presence or absence of abnormalities in the speed of the car 3 and the state of the main rope 4 is detected.
- the output section will indicate that the speed of car 3 is abnormal.
- the operation signal is output from the output unit 114 to the hoisting machine brake device 106, and the stop signal is output to the control panel 102.
- the hoisting machine 101 is stopped, the hoisting machine brake device 106 is operated, and the rotation of the drive sheave 104 is braked.
- the operation signal and the stop signal are output from the output unit 114 to the brake device 106 for the hoisting machine and the control panel 102, respectively, and are driven.
- the rotation of sheave 104 is braked.
- the hoisting machine brake device 10 While maintaining the output of the operation signal to 6, the operation signal is output to the safety gear 33 from the output section 114.
- the emergency stop device 33 is actuated, and the car 3 is braked by the same operation as in the second embodiment.
- the output section is maintained while maintaining the output of the operating signal to the hoisting machine brake device 106.
- An operation signal is output from 1 1 4 to the safety gear 3 3, and the safety gear 3 3 is activated.
- the monitoring device 108 detects the state of the elevator.
- the speed of car 3 and the status of main rope 4 are obtained based on the information from detection means 1 1 2 and it is determined that any of the obtained speed of car 3 or the status of main rope 4 is abnormal.
- the operating signal is output to at least one of the hoisting machine brake device 106 and the emergency stop device 33, so that the number of abnormalities to be detected increases and the car 3 It is possible to detect not only the abnormality in the speed but also the abnormality in the state of the main rope 4, and the detection of the abnormality in the elevator by the monitoring device 108 can be performed earlier and more reliably. Therefore, it is possible to further reduce the time required from the occurrence of the elevator abnormality to the generation of the power for controlling the car 3.
- the rope sensor 13 2 is installed on the rope retaining device 13 1 provided on the car 3, but the rope sensor 13 2 is attached on the rope retaining device provided on the balancing weight 107. 2 can be installed.
- one end and the other end of the main rope 4 are connected to the car 3 and the counterweight 107, respectively, and the car 3 and the counterweight 107 are suspended in the hoistway 1.
- the present invention is applied to an elevator device of the type, but a main rope 4 having one end and the other end connected to a structure in the hoistway 1 is wound around a car hoist and a counterweight hoist, respectively.
- the present invention may be applied to a type of elevator apparatus in which the hanging car 3 and the counterweight 107 are suspended in the hoistway 1.
- the rope sensor is installed on a rope cleat provided on a structure in the hoistway 1.
- FIG. 25 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 14 of the present invention.
- the rope sensor 135 serving as the rope breakage detecting unit is a conductor embedded in each main rope 4.
- Each conductor extends in the length direction of the main rope 4.
- One end and the other end of each conductor are electrically connected to the output section 114, respectively.
- a weak current flows through each conductor.
- the respective interruption of the current supply to each conductor is input as a break detection signal.
- each main rope 4 is detected by interrupting the power supply to the conductor embedded in each main rope 4, so that the car 3 can be adjusted.
- the presence or absence of breakage of each main rope 4 can be more reliably detected without being affected by the change in the tension of each main rope 4 due to the speed.
- FIG. 26 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 15 of the present invention.
- a car position sensor 109, a car speed sensor 110, and a door sensor 140 which is an entrance / exit opening / closing detection unit for detecting the opening / closing state of a car entrance / exit 26, are electrically connected to an output unit 114. It is connected to the.
- the detecting means 112 has a car position sensor 109, a car speed sensor 110 and a door sensor 140.
- the door sensor 140 outputs a door-closed detection signal to the output unit 114 when the car entrance 26 is in a door-closed state.
- the storage unit 113 has the same car speed abnormality judgment criterion as in Embodiment 11 as shown in FIG.
- the entrance / exit status abnormality judgment criteria are stored.
- the entrance / exit state abnormality determination criterion is an abnormality determination criterion that the state where the car 3 is raised and lowered and the door is not closed is regarded as abnormal.
- the position of the car 3 is calculated based on the input of the position detection signal, and based on the input of the speed detection signal and the door closing detection signal, the speed of the car 3 and the car entrance 2 6 Are calculated as multiple (two in this example) abnormality judgment factors.
- the output unit 1 14 outputs when the car 3 is moved up or down with the car entrance 26 not closed, or the speed of the car 3 exceeds the first abnormal speed detection pattern 1 16 (Fig. 19). Sometimes, an operation signal is output to the hoisting machine brake device 104. Also, when the speed of the car 3 exceeds the second abnormal speed detection pattern 1 17 (FIG. 19), the output unit 114 sends the brake device 104 for the hoisting machine and the safety device 33 to the emergency stop device 33. An operation signal is output.
- FIG. 27 is a perspective view showing the car 3 and the door sensor 140 of FIG.
- FIG. 28 is a perspective view showing a state in which the car entrance 26 of FIG. 27 is open.
- the door sensor 140 is disposed above the car entrance 26 and at the center of the car entrance 26 in the direction of the frontage of the car 3.
- Door sensor 140 is a pair It detects the displacement of the car door 28 to each door closing position and outputs a door closing detection signal to the output unit 114.
- a contact-type sensor that detects a door-closed state by being brought into contact with a fixed portion fixed to each car door 28, or a proximity sensor that detects a door-closed state in a non-contact manner is used.
- a pair of landing doors 142 that open and close the landing entrances 141 are provided at the landing entrances 141.
- Each of the landing doors 14 2 is engaged with each of the car doors 28 by an engaging device (not shown) when the car 3 is landing on the landing floor, and is displaced together with each of the car doors 28.
- the output unit 114 When the position detection signal from the car position sensor 109, the speed detection signal from the car speed sensor 110, and the door closing detection signal from the door sensor 140 are input to the output unit 114, the output unit At 114, the position of the car 3, the speed of the car 3, and the state of the car entrance 26 are calculated based on the input of each detection signal. Thereafter, the output unit 114 outputs the car speed abnormality judgment criterion and the entrance / exit abnormality judgment criterion obtained from the storage unit 113, respectively, and the speed of each car 3 and each car calculated based on the input of each detection signal. The state of the door 28 is compared with the state of the car 3 and the state of the state of the car entrance 26 is detected as to whether or not there is any abnormality.
- the speed of car 3 has almost the same value as the normal speed detection pattern, and car entrance 26 when car 3 is moving up and down is closed. It is detected that there is no abnormality in the speed of the car 3 and the state of the car entrance 26, and normal operation of the elevator is continued.
- the output section will indicate that the speed of car 3 is abnormal.
- the operation signal is detected by 114 and the operation signal is output from the output unit 114 to the brake device 106 for the hoist, and the stop signal is output to the control panel 102.
- the hoist 101 is stopped, the hoist braking device 106 is operated, and the rotation of the drive sheave 104 is braked.
- the abnormality of the car entrance 26 is detected by the output unit 114, and the operation signal is output.
- the output signal and the stop signal are output from the output unit 114 to the hoisting machine brake device 106 and the control panel 102, respectively, and the rotation of the drive sheave 104 is braked.
- the hoisting machine brake device 10 While maintaining the output of the operation signal to 6, the operation signal is output to the safety gear 33 from the output section 114.
- the emergency stop device 33 is actuated, and the car 3 is braked by the same operation as in the second embodiment.
- the monitoring device 108 acquires the speed of the car 3 and the condition of the car entrance 26 based on the information from the detecting means 112 detecting the condition of the elevator, and the acquired car 3
- an operation signal is output to at least one of the brake device 106 for the hoisting machine and the emergency stop device 33.
- the number of objects to be detected for elevator abnormalities increases, and it is possible to detect not only abnormalities in the speed of car 3 but also abnormalities in the status of car entrance 26 and elevator abnormalities by monitoring device 108. Can be detected earlier and more reliably. Therefore, it is possible to further reduce the time required from the occurrence of an elevator abnormality to the generation of the braking force on the car 3.
- FIG. 29 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 16 of the present invention.
- FIG. 30 is a configuration diagram showing an upper portion of the hoistway 1 of FIG.
- a power supply cable 150 is electrically connected to the hoist 101.
- Hoisting machine Drive power is supplied to 101 via the power supply cable 150 under the control of the control panel 102.
- the power supply cable 150 is provided with a current sensor 151, which is a drive device detection unit that detects the state of the hoisting machine 101 by measuring the current flowing through the power supply cable 150. I have.
- the current sensor 151 outputs a current detection signal (drive device state detection signal) corresponding to the current value of the power supply cable 150 to the output unit 114. Note that the current sensor 15 1 is arranged above the hoistway 1.
- the current sensor 151 includes a current transformer (CT) that measures an induced current generated according to the magnitude of the current flowing through the power supply cable 150.
- CT current transformer
- a car position sensor 109, a car speed sensor 110, and a current sensor 151 are electrically connected to the output unit 114.
- the detecting means 112 has a car position sensor 109, a car speed sensor 110 and a current sensor 151.
- the storage unit 113 includes a car speed abnormality determination criterion similar to that of the embodiment 11 as shown in FIG. 19 and a drive for determining whether there is an abnormality in the state of the hoisting machine 101.
- the moving device abnormality determination criteria are stored.
- the drive device abnormality determination criterion has three stages of detection patterns. That is, the drive device abnormality determination criteria include a normal level which is a current value flowing through the power supply cable 150 during normal operation, a first abnormal level which is larger than the normal level, and a first abnormal level which is larger than the first abnormal level. The second abnormal level is set to a large value.
- the output unit 114 calculates the position of the car 3 based on the input of the position detection signal, and the speed of the car 3 and the hoisting machine 101 based on the respective input of the speed detection signal and the current detection signal. Are calculated as multiple (two in this example) abnormality judgment factors.
- the output unit 114 determines whether the drive unit is abnormal when the speed of the car 3 exceeds the first abnormal speed detection pattern 1 16 (Fig. 19) or the magnitude of the current flowing through the power supply cable 150.
- an operation signal (trigger signal) is output to the brake device 104 for the hoisting machine.
- the output unit 1 14 indicates that the speed of car 3 exceeds the second abnormal speed detection pattern 1 17 (Fig. 19).
- the hoist brake device 104 and the emergency stop device 33 An operation signal is output to the controller. That is, the output unit 114 determines the braking means that outputs the operation signal in accordance with the speed of the car 3 and the degree of abnormality of the state of the hoist 101, respectively.
- the output unit 114 When the position detection signal from the car position sensor 109, the speed detection signal from the car speed sensor 110, and the current detection signal from the current sensor 151 are input to the output unit 114, the output unit At 114, the position of the car 3, the speed of the car 3, and the magnitude of the current in the power supply cable 150 are calculated based on the input of each detection signal. After that, the output unit 114 outputs the speed of the car 3 calculated based on the input of the detection signal and the car speed abnormality judgment criterion and the drive device abnormality judgment criterion respectively obtained from the storage unit 113. The magnitude of the current in the power supply cable 150 is compared with the magnitude of the current in the power supply cable 150, and the presence or absence of abnormality in the speed of the car 3 and the state of the hoist 101 is detected.
- the speed of the car 3 is almost the same as the normal speed detection pattern 1 15 (Fig. 19), and the current flowing through the power supply cable 150 is at the normal level.
- the output unit 114 detects that there is no abnormality in the speed of the car 3 and the state of the hoist 101, respectively, and normal operation of the elevator is continued. For example, if for some reason the speed of car 3 rises abnormally and exceeds the first abnormal speed detection pattern 1 16 (Fig. 19), the output section will indicate that the speed of car 3 is abnormal. Detected by 114, the operation signal is output from the output unit 114 to the hoisting machine brake device 106, and the stop signal is output to the control panel 102. As a result, the hoist 101 is stopped, the hoist braking device 106 is operated, and the rotation of the drive sheave 104 is braked.
- the operation signal and the stop signal are transmitted to the hoisting machine brake device 106 and the control unit.
- the output is output from the output unit 114 to the panel 102, and the rotation of the drive sheave 104 is braked.
- the hoisting machine brake device 10 While maintaining the output of the operation signal to 6, the operation signal is output to the safety gear 33 from the output section 114.
- the emergency stop device 33 is actuated, and the car 3 is braked by the same operation as in the second embodiment.
- the hoisting operation is also performed. While maintaining the output of the operation signal to the machine brake device 106, the operation signal is output from the output unit 114 to the safety device 33, and the safety device 33 is operated.
- the monitoring device 108 acquires the speed of the car 3 and the state of the winding machine 101 based on information from the detecting means 112 for detecting the state of the elevator, and acquires the acquired information.
- the hoist braking system 106 and the emergency stop device 33 is activated. Because it is designed to output signals, the number of elevator abnormality detection targets increases, and the time it takes to generate braking force on car 3 after an elevator abnormality has occurred can be shortened. it can.
- the force s which detects the state of the hoist 101 by using the current sensor 151, which measures the magnitude of the current flowing through the power supply cable 150
- the state of the hoist 101 may be detected using a temperature sensor that measures the temperature of the hoist 101.
- the output unit 114 outputs the operation signal to the hoisting machine brake device 106 before outputting the operation signal to the emergency stop device 33.
- the undulating force S is mounted separately from the safety gear 3 on the car 3, the car brake that brakes the car 3 by sandwiching the car guide rail 2, mounted on the counterweight 107, and balanced.
- An output signal may be output to the output unit 114 to the rope brake that brakes the rope 4.
- the electric cable is used as the transmission means for supplying power from the output unit to the safety gear.
- the transmitter provided in the output unit and the safety gear mechanism are provided.
- a wireless communication device having a receiver provided in the device may be used.
- an optical fiber cable for transmitting an optical signal may be used.
- FIG. 31 is a configuration diagram schematically showing an elevator apparatus according to Embodiment 17 of the present invention.
- a governor sheave (governor sheave) 201 as a pulley is provided above the hoistway 1.
- a pulley 202 as a pulley is provided below the hoistway 1.
- a governor rope (gapana rope) 203 is wound around the governor sheave 201 and the tension sheave 202. Both ends of the governor rope 203 are connected to the car 3. Accordingly, the governor sheave 201 and the tension sheave 202 are rotated at a speed corresponding to the traveling speed of the car 3.
- the governor sheave 201 is provided with an encoder 204 that is a pulley sensor.
- the encoder 204 outputs a rotational position signal based on the rotational position of the governor sheave 201.
- a rope speed sensor 205 serving as a rope sensor is provided near the governor rope 203 in the hoistway 1.
- the rope speed sensor 205 detects the traveling speed of the governor rope 203 and constantly outputs information on the traveling speed of the governor rope 203 as a rope speed signal.
- the control panel 102 has a first speed detector 206 that determines the speed of the car 3 based on information from the encoder 204, and a car based on information from the rope speed sensor 205.
- the second speed detector (car speed calculation circuit for ropes) 200 that calculates the speed of 3 and the cage 3 that is obtained by the first and second speed detectors 206 and 207, respectively.
- a slip judging device 208 which is a judging unit for judging whether or not a slip has occurred between the governor rope 203 and the governor sheave 201 based on the speed information;
- a control device 209 for controlling the operation of the elevator based on information from the speed detector 206 and the slip judging device 208 is mounted.
- the first speed detecting unit 206 includes a car position calculating circuit 210 that calculates the position of the car 3 based on the input of the rotational position signal from the governor sheave 201, and a car position calculating circuit. twenty one A pulley car speed calculation circuit 2 1 1 for obtaining the speed of the car 3 based on the information on the position of the car 3 obtained by 0.
- the car position calculation circuit 210 outputs information on the position of the car 3 thus obtained to the control device 209. Further, the pulley car speed calculation circuit 211 outputs information on the obtained speed of the car 3 to the control device 209 and the slip determination device 208.
- the slip judging device 208 determines the value of the speed of the car 3 obtained by the pulley car speed calculation circuit 211 and the value of the speed of the car 3 obtained by the second speed detection unit 207. When the values are different, it is determined that slippage has occurred between the governor rope 203 and the governor sheave 201, and when the values are the same, no slippage has occurred. The judgment is made. Further, the slip judging device 208 outputs to the control device 209 information on whether or not slippage has occurred between the governor rope 203 and the governor sheave 201. I have.
- the control device 209 stores the same car speed abnormality determination criterion as in Embodiment 11 as shown in FIG.
- the control device 2 09 controls the brake device 1 for the hoisting machine.
- An operation signal (trigger signal) is output to 04 (Fig. 18).
- the control device 209 controls the brake for the hoisting machine.
- the operation signal is output to the safety device 33 while maintaining the output of the operation signal to the device 104.
- control device 209 includes information on the position of the car 3 from the car position calculation circuit 210, information on the speed of the car 3 from the pulley car speed calculation circuit 211, and the slippage determination device 2.
- the operation of the elevator is controlled based on the information on the occurrence of slippage from 08.
- the control device 209 controls the elevator to operate normally when there is no slip between the governor rope 203 and the governor sheave 201, and when the slip occurs, An operation signal is output to the brake device 104 for the hoisting machine.
- the brake device 104 for the hoist is activated by the input of the operation signal, and the car 3 is emergency-stopped by the operation of the brake device 104 for the hoist.
- Reference numeral 2 denotes a first speed detecting unit 206, a second speed detecting unit 206, and a slip judging device 20.
- the elevator rope slip detecting device 21 includes an encoder 204, a rope speed sensor 205, and a processing device 212.
- a buffer space is provided at the lower end of the hoistway 1 as a space for preventing a collision of the car 3 with the bottom of the hoistway 1.
- FIG. 32 is a schematic configuration diagram showing the elevator rope slip detection device 21 of FIG. 31.
- a rope speed sensor 205 radiates an oscillating wave (microwave, ultrasonic wave, laser beam, or the like), which is an energy wave, to the surface of the governor rope 203, Oscillation waves reflected on the surface are received as reflected waves.
- an oscillating wave microwave, ultrasonic wave, laser beam, or the like
- the rope speed sensor 205 is a Doppler sensor that determines the moving speed of the governor rope 203 by measuring the difference between the frequency of the oscillating wave and the frequency of the reflected wave.
- Other configurations are the same as those of the eleventh embodiment.
- the car position calculating circuit 210 obtains the position of the car 3. Thereafter, information on the position of the car 3 is output from the car position calculation circuit 210 to the control device 209 and the pulley car speed calculation circuit 211. After this,
- the speed of the car 3 is obtained based on the information on the position of the car 3. Thereafter, information on the speed of the car 3 obtained by the pulley car speed calculation circuit 211 is output to the control device 209 and the slip determination device 208.
- the second speed detecting unit 205 In 0 7 the speed of car 3 is required. After that, the information on the speed of the car 3 obtained by the second speed detection unit 2007 is output to the slip determination device 208.
- the control is performed. It is detected whether or not a slippage has occurred between the speed sheave 201 and the governor rope 203. Thereafter, information on whether or not a slip has occurred is output from the slip determination device 208 to the control device 209.
- the operation of the elevator is set to the normal operation by the control device 209.
- the control device 209 For example, if for some reason the speed of car 3 rises abnormally and exceeds the first abnormal speed detection pattern 1 16 (Fig. 19), the activation signal will be transmitted to the hoisting machine brake device 106 ( In FIG. 18), a stop signal is output from the control device 209 to the hoist 101 (FIG. 18), respectively.
- the hoist 101 is stopped, the brake device 106 for the hoist is operated, and the rotation of the drive sheave 104 is braked.
- the brake device 10 10 for the hoisting machine While maintaining the output of the operation signal to 6, the operation signal is output from the control unit 209 to the safety gear 3 3 (FIG. 18).
- the safety device 33 is actuated, and the car 3 is braked by the same operation as in the second embodiment.
- the slip determination device 208 when the speed of the car 3 from the pulley car speed calculation circuit 211 and the speed of the car 3 from the second speed detection unit 207 become different values, the control is performed. It is determined that slippage of the speed governor rope 203 with respect to the governor sheave 201 has occurred. As a result, an abnormal signal is output from the slip determination device 208 to the control device 209. By input of the abnormal signal to the control device 209, an operation signal is output from the control device 209 to the hoist braking device 106, and a stop signal is output from the control device 209 to the hoist 101. Thus, the hoist 101 is stopped, the brake device 106 for the hoist is operated, and the car 3 is emergency stopped.
- the speed of the car 3 obtained by the first speed detecting unit 206 based on the rotational position of the governor sheave 201 is:
- the governor rope 203 and the governor are used. Since the slippage between the traction sheave 200 and the slippage judging device 208 is determined, the speed governor rope 203 and the speed governor sheave 201 are determined.
- the first speed detecting unit 206 is a pulley for calculating the speed of the car 3 based on the information from the car position calculating circuit 210 and the car position detecting circuit 210 which determines the position of the car 3. Since the car speed calculating circuit 211 is provided, the position and speed of the car 3 can be obtained from the common sensor, and the number of parts can be reduced. Therefore, cost can be reduced.
- the pulley sensor is an encoder 205, the rotational position of the governor sheave 201 can be easily and inexpensively measured.
- the rope speed sensor 205 measures the frequency difference between the oscillating wave irradiating the surface of the governor rope 203 and the reflected wave of the oscillating wave on the surface of the governor rope 203. As a result, since the Dobler sensor obtains the moving speed of the governor rope 203, it is possible to detect the moving speed of the governor rope 203 without contacting the governor rope 203. The life span of the governor rope 203 and the rope speed sensor 205 can be extended.
- the operation of the elevator is controlled by the control unit 209 based on the information from the processing unit 2 12 and detected by the processing unit 2 1 2 based on the moving speed of the elevator 3. Driving can be performed more accurately, and, for example, collision of the car 3 with the end of the hoistway 1 can be prevented.
- the control device 109 causes the car 3 to be emergency-stopped in response to the input of the abnormal signal from the slip determination device 208, but the abnormal signal is transmitted to the control device 109. It is also possible to automatically correct the position of the car 3 recognized by the control device 109 when it is input to the.
- a plurality of reference position sensors for detecting the position of the car 3 are provided on each floor in the hoistway 1. Further, the position of the car 3 recognized by the control device 109 is automatically corrected based on information from each reference position sensor.
- FIG. 33 is a main part configuration diagram showing a rope speed sensor of the elevator rope slip detecting device according to Embodiment 18 of the present invention.
- the governor rope 203 is manufactured by being twisted with a plurality of metal wires. As a result, irregularities are formed on the surface of the governor rope 203 at regular intervals in the longitudinal direction of the governor rope 203.
- the rope speed sensor 2 21 is fixed in the hoistway 1 so as to face the surface of the governor rope 203 via a gap (space) G.
- the size of the gap G is periodically changed according to the moving speed of the governor rope 203. To fluctuate.
- the rope speed sensor 222 reads the variation period of the gap G based on information from the gap sensor 222 that constantly measures the size of the gap G and the gap sensor 222. And a detecting unit 223 for calculating the moving speed of the governor rope 203 based on the motion.
- the gap sensor 222 is a light source that can irradiate the surface of the governor rope 203 with light.
- the light source 2 24 and the light source 2 24 are spaced apart from each other, and can receive the reflected light when the light emitted from the light source 2 24 is reflected by the surface of the governor rope 203. It has a part 225 and a lens (not shown) for condensing the reflected light from the surface of the governor rope 203 to the light receiving part 225. As a result, the illuminating light emitted from the light source unit 224 is reflected on the surface of the governor rope 203, and the reflected light is collected by the lens and received by the light receiving unit 225. It has become. When light is received by the light-receiving section 2 25 The condensing position of the reflected light changes according to the change in the size of the gap G.
- the gap sensor 222 determines the size of the gap G by triangulation for measuring the condensing position of the reflected light when the light is received by the light receiving section 222. That is, the gap sensor 222 is an optical displacement sensor that determines the size of the gap G by triangulation.
- the light receiving section 225 may be a CCDPSD (Position Detector) or the like. Other configurations are the same as those of the seventeenth embodiment.
- the detecting unit 222 the fluctuation period of the size of the gap G is read from the gap sensor 222, and the moving speed of the governor rope 203 is obtained. Thereafter, information on the moving speed of the governor rope 203 is output from the detection unit 222 to the second speed detection unit 207. Subsequent operations are the same as those of the seventeenth embodiment.
- FIG. 34 is a main part configuration diagram showing a rope speed sensor of the elevator rope slip detecting device according to Embodiment 19 of the present invention.
- the rope speed sensor 2 3 1 is wound around a U-shaped permanent magnet 2 3 2, which is a magnetic field generating section that generates a magnetic field passing through the governor rope 2 0 3, and a permanent magnet 2 3 2
- a detection unit 234 that is electrically connected to the coil 233 and measures an induced current generated in the coil 233 due to a variation in the strength of the magnetic field.
- a magnetic field (magnetic field) is formed between the governor rope 203 and the permanent magnet 230. It is made.
- the size of the gap G fluctuates periodically according to the moving speed of the governor rope 203, and the strength of the magnetic field also fluctuates periodically according to the fluctuation of the size of the gap G.
- the induced current generated in the coil 233 periodically fluctuates in accordance with the fluctuation of the magnetic field strength. That is, the permanent magnet 2 32 is used as a gap sensor that measures the size of the gap G by changing the strength of the magnetic field.
- the detecting section 234 obtains the cycle of the induced current variation occurring in the coil 233 as the variation cycle of the size of the gap G, and determines the moving speed of the governor rope 203 based on the variation cycle of the induced current. I'm starting to ask. Further, the detecting section 234 outputs the obtained moving speed of the governor rope 203 to the second speed detecting section 207.
- Other configurations are the same as those of the eighteenth embodiment.
- the magnitude of the induced current at this time is measured by the detection unit 234. Thereafter, the detecting unit 234 obtains the fluctuation period of the induced current, and obtains the moving speed of the governor rope 203.
- the subsequent operation is similar to that of the eighteenth embodiment.
- the rope speed sensor 231 measures the permanent magnet 232 that generates a magnetic field passing through the governor rope 203, and the fluctuation period of the magnetic field strength. Therefore, since there is a detecting unit 234 that obtains the fluctuation period of the gap G, the moving speed of the governor rope 203 can be detected in a non-contact manner with respect to the governor rope 203. The service life of the governor rope 203 and the rope speed sensor 231 can be extended. In addition, since the rope speed sensor 2 31 detects a change in the size of the gap G based on a change in the strength of the magnetic field, dirt such as oil may be present on the surface of the governor rope 203.
- FIG. 35 is a main part configuration diagram showing a rope speed sensor of the elevator rope slip detection device according to Embodiment 20 of the present invention.
- a rope speed sensor 2 41 is provided in a magnetic field generator 2 42 that generates a magnetic field passing through the governor rope 203, and in a portion where the magnetic field of the magnetic field generator 2 42 passes.
- a Hall element 2 43 for detecting the strength and a detecting unit 2 4 4 for calculating the moving speed of the governor rope 203 by obtaining the fluctuation period of the strength of the magnetic field detected by the Hall element 2 43 Have.
- the magnetic field generator 2 42 is electrically connected to a substantially C-shaped magnetic body (for example, iron or the like) 24 5 and a coil 2 ′ 46 wound around the magnetic body 2 45. 5 has an AC power supply 247 for generating an AC magnetic field.
- the magnetic body 245 is fixed in the hoistway 1.
- the governor rope 203 is arranged in a space between both ends of the substantially C-shaped magnetic body 245.
- the Hall element 243 is provided at one end of the magnetic body 245. Also, the Hall element 243 faces the surface of the governor rope 203 via a gap G.
- Other configurations are the same as those of the nineteenth embodiment.
- the AC power supply 247 is operated to generate an AC magnetic field in the magnetic body 245.
- the strength of the magnetic field detected by the Hall element 240 is reduced by the unevenness of the surface of the governor rope 203. It fluctuates periodically according to the moving speed.
- the strength of the magnetic field detected by the Hall element 243 is sent to the detection unit 244. Thereafter, the detecting unit 244 obtains the fluctuation period of the magnetic field strength, and obtains the moving speed of the governor rope 203. Subsequent operations are the same as in Embodiment 18.
- FIG. 36 is a main part configuration diagram showing an elevator rope slip detection device according to Embodiment 21 of the present invention.
- a rope speed sensor 205 which is the same doppler sensor as that in the seventeenth embodiment, is arranged near the governor sheave 201.
- the oscillating wave from the rope speed sensor 205 is applied only to the part of the governor rope 203 wound around the governor sheave 201.
- the rope speed sensor 205 measures the moving speed of the part of the governor rope 203 wound around the governor sheave 201. That is, the rope speed sensor 205 irradiates the oscillating wave to the part of the governor rope 203 wound around the governor sheave 201, and receives the reflected wave to generate the oscillating wave. The difference between the frequency and the frequency of the reflected wave is measured, and the moving speed of the governor rope 203 is determined.
- Other configurations and operations are the same as those of the seventeenth embodiment.
- the rope speed sensor 205 measures the moving speed of the part of the governor rope 203 wound around the governor sheave 201. As a result, the traveling speed of the governor rope 203 whose lateral vibration (rolling) is suppressed by the governor sheave 201 can be measured.
- the moving speed of the governor rope 203 that moves while rolling is measured, the movement in which the velocity components in the moving direction and the rolling direction of the governor rope 203 are combined.
- the speed is measured by the rope speed sensor 205, and the measurement error due to the roll increases, but the governor sheave 201 suppresses the lateral displacement of the governor rope 203. Therefore, the moving speed of the governor rope 203 can be measured more accurately and more stably.
- Embodiment 22 Embodiment 22.
- FIG. 37 is a main part configuration diagram showing an elevator rope slip detection device according to Embodiment 22 of the present invention.
- a hoistway 1 is provided with a rope sway prevention device 251 for preventing lateral vibration (rolling) of the governor rope 203.
- the rope sway prevention device 25 1 is composed of a casing 25 2 through which the governor rope 203 is passed, and a casing
- the upper roller 25 3 for preventing lateral vibration which is provided in the body 25 2 and is pressed against the governor rope 203 so that the governor rope 203 stretched in the hoistway 1 is bent.
- a lower roller 25 4 (a pair of rollers).
- the upper roller 253 and the lower roller 254 are arranged at an interval in the vertical direction.
- the same rope speed sensor 205 as that of Embodiment 17 is housed in housing 2 52.
- the rope speed sensor 205 is disposed between the upper roller 253 and the lower roller 254. Further, the rope speed sensor 205 measures a moving speed of a portion stretched between the upper roller 253 and the lower roller 2554 of the governor rope 203. That is, the rope speed sensor 205 radiates an oscillating wave to a portion stretched between the upper roller 253 and the lower roller 254 of the governor rope 203, and receives the reflected wave. Thus, the difference between the frequency of the oscillating wave and the frequency of the reflected wave is measured, and the moving speed of the governor rope 203 is determined.
- a plate-like energy wave shield 255 that absorbs energy waves is horizontally disposed.
- the energy wave shield 255 is provided in the housing 255 so as to avoid the space between the rope speed sensor 205 and the governor rope 203.
- the energy wave shield 255 can be a reflected wave different from the reflected wave from the surface of the governor rope 203 (for example, the reflected wave from the upper roller 253 or the casing 252, etc.). ) Is absorbed and shielded.
- Other configurations and operations are the same as those of the seventeenth embodiment.
- the upper roller 25 3 and the lower roller 25 4 are arranged such that the speed governor rope 20 3 stretched in the hoistway 1 is bent.
- the rope speed sensor 205 measures the moving speed of the portion stretched between the upper roller 253 and the lower roller 254 of the governor rope 203. Therefore, the roll of the governor rope 203 at the measurement point by the rope speed sensor 205 can be suppressed, and the measurement error due to the roll of the governor rope 203 can be reduced. it can. Thereby, the moving speed of the governor rope 203 can be measured more accurately and more stably.
- An energy wave shield 255 for shielding a reflected wave different from a reflected wave from the surface of the governor rope 203 is provided near the rope speed sensor 205. Therefore, the reflected wave that causes the measurement error of the speed of the governor rope 203 can be blocked by the energy wave shield 255, and the measurement error of the mouth speed sensor 205 is reduced. can do. Thereby, the moving speed of the governor rope 203 can be measured more accurately and stably.
- the energy barrier 25 5 is provided only between the upper roller 25 3 and the rope speed sensor 205, but the lower roller 25 4 and the rope speed sensor 205 are provided. 5 may be provided. Embodiment 23.
- FIG. 38 is a main part configuration diagram showing an elevator rope slip detection device according to Embodiment 23 of the present invention.
- a rope break prevention device 26 1 is installed in a hoistway 1.
- the rope sway prevention device 26 1 is provided in the housing 26 2 through which the governor rope 203 passes, and in the housing 26 2, and the lateral vibration of the governor rope 203 is provided.
- the upper rope sandwiching portion 263 and the lower rope sandwiching portion 2664 are arranged at intervals in the vertical direction.
- each of the upper rope sandwiching portion 26 3 and the lower rope sandwiching portion 26 4 is biased by a spring (biasing portion) 2 66 toward the fixed roller 26.5 and the fixed roller 26.5 side.
- the governor rope 203 is sandwiched between the fixed roller 265 and the movable roller 267.
- the same rope speed sensor 205 as that of the first embodiment is accommodated in housing 2 62.
- the rope speed sensor 205 is disposed between the upper rope sandwiching section 2 63 and the lower rope sandwiching section 2 64.
- the rope degree sensor 205 measures the speed of movement of the portion stretched between the upper rope pincer 263 and the lower rope pincer 2664 of the governor rope 203.
- the rope speed sensor 205 radiates an oscillating wave to the portion stretched between the upper rope pinch portion 263 and the lower rope pinch portion 2664 of the governor rope 203, and reflects the reflected wave. By receiving the wave, the difference between the frequency of the oscillating wave and the frequency of the reflected wave is measured, and the moving speed of the governor rope 203 is determined.
- a plate-like energy wave shield 255 that absorbs energy waves is horizontally disposed between the upper rope sandwiching portion 263 and the rope speed sensor 205.
- the energy wave shield 255 is provided in the housing 262 so as to avoid the space between the rope speed sensor 205 and the governor rope 203.
- the energy wave shields 255 can reflect reflected waves different from the reflected waves from the surface of the governor rope 203 (for example, reflected waves from the upper rope pinch portion 26 3 or the housing 26 2 etc.). ) Is absorbed and shielded.
- Other configurations and operations are the same as those of the seventeenth embodiment.
- Such an elevator rope slip detection device has a fixed roller 2665 and a movable roller 2667 urged by a spring 2666 to the fixed roller 26 side, and is movable with the fixed roller 2665.
- a pair of rope sandwiching portions 263, 264 that sandwich the governor rope 203 with the roller 2667 are arranged at intervals in the vertical direction, and the rope speed sensor 205 is Since the speed of movement of the section between the rope clamps 16 3 and 26 4 of the speed governor rope is measured, adjustment at the measurement point by the rope speed sensor 205 is performed. Rolling of the governor rope 203 can be suppressed, and measurement errors due to rolling of the governor rope 203 can be reduced. Thereby, the moving speed of the governor rope 203 can be measured more accurately and more stably. Also, since the governor rope 203 does not need to be bent as compared with Embodiment 23, it is possible to prevent the life of the governor rope 203 from being shortened.
- the rope slip detection device 21 is applied to the elevator device of Embodiment 11; however, Embodiments 1 to 10 and 12 to 16
- the rope slip detecting device 2 13 may be applied to the elevator device.
- a speed governor rope connected to car 3 and a governor rope were wound around the hoistway 1 for rope slip detection by the rope slip detector 2 1 3 And a governor sheave.
- the operation of the elevator is controlled by an output unit as a control device based on information from the rope slip detecting device 21.
- Embodiment 2 of the above In to 23, a rope speed sensor 205 similar to that used in Embodiment 17 used as a Doppler sensor is used to measure the moving speed of the governor rope 203.
- a rope speed sensor 2 41 similar to 20 may be used for measuring the moving speed of the governor rope 203.
- the emergency stop device brakes against excessive speed (movement) in the downward direction of the car, but the emergency stop device is turned upside down. It is also possible to attach a car to the car and brake it against overspeed (movement) in the upward direction.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
Description
Claims
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES11173421T ES2409281T3 (es) | 2004-05-28 | 2004-05-28 | Dispositivo de detección de deslizamiento de cuerda de elevador y sistema elevador |
ES04735333T ES2379657T3 (es) | 2004-05-28 | 2004-05-28 | Detector de deslizamiento de cuerda de elevador y sistema elevador |
CNB200480025082XA CN100509601C (zh) | 2004-05-28 | 2004-05-28 | 电梯的绳索打滑检测装置以及电梯装置 |
PT111734216T PT2380838E (pt) | 2004-05-28 | 2004-05-28 | Dispositivo de detecção de escorregamento de cabo de elevador e aparelho para elevador |
CA2547002A CA2547002C (en) | 2004-05-28 | 2004-05-28 | Elevator rope slippage detecting device, and elevator apparatus |
JP2006519182A JP4849465B2 (ja) | 2004-05-28 | 2004-05-28 | エレベータのロープ滑り検出装置、及びエレベータ装置 |
BRPI0417228-0A BRPI0417228B1 (pt) | 2004-05-28 | 2004-05-28 | "elevator cable sliding detection device" |
EP11173421A EP2380838B1 (en) | 2004-05-28 | 2004-05-28 | Elevator rope slippage detecting device, and elevator apparatus |
EP04735333A EP1749780B1 (en) | 2004-05-28 | 2004-05-28 | Elevator rope slip detector and elevator system |
PT04735333T PT1749780E (pt) | 2004-05-28 | 2004-05-28 | Detector de escorregamento de cabo de elevador e sistema de elevador |
PCT/JP2004/007725 WO2005115902A1 (ja) | 2004-05-28 | 2004-05-28 | エレベータのロープ滑り検出装置、及びエレベータ装置 |
US10/580,837 US7578373B2 (en) | 2004-05-28 | 2004-05-28 | Elevator rope slip detector and elevator system |
KR1020087003811A KR100949632B1 (ko) | 2004-05-28 | 2004-05-28 | 엘리베이터의 로프 미끄러짐 검출 장치, 및 엘리베이터장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/007725 WO2005115902A1 (ja) | 2004-05-28 | 2004-05-28 | エレベータのロープ滑り検出装置、及びエレベータ装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005115902A1 true WO2005115902A1 (ja) | 2005-12-08 |
Family
ID=35450779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/007725 WO2005115902A1 (ja) | 2004-05-28 | 2004-05-28 | エレベータのロープ滑り検出装置、及びエレベータ装置 |
Country Status (10)
Country | Link |
---|---|
US (1) | US7578373B2 (ja) |
EP (2) | EP2380838B1 (ja) |
JP (1) | JP4849465B2 (ja) |
KR (1) | KR100949632B1 (ja) |
CN (1) | CN100509601C (ja) |
BR (1) | BRPI0417228B1 (ja) |
CA (1) | CA2547002C (ja) |
ES (2) | ES2409281T3 (ja) |
PT (2) | PT2380838E (ja) |
WO (1) | WO2005115902A1 (ja) |
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KR102377496B1 (ko) * | 2021-06-03 | 2022-03-21 | 한규명 | 무대장치용 와이어로프 흔들림방지 안전장치 |
TWI823303B (zh) * | 2022-03-23 | 2023-11-21 | 辛耘企業股份有限公司 | 具有防止掉落功能的升降設備與第一制動裝置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4220750Y1 (ja) * | 1964-01-14 | 1967-12-02 | ||
JPS5931274A (ja) * | 1982-08-09 | 1984-02-20 | 株式会社東芝 | エレベ−タ乗かご位置検出装置 |
JPH08198538A (ja) * | 1992-10-15 | 1996-08-06 | Shimizu Corp | エレベータケージの位置検出・表示装置 |
JPH0940333A (ja) * | 1995-08-02 | 1997-02-10 | Meidensha Corp | 垂直搬送装置のすべり検出装置 |
JP2004123279A (ja) * | 2002-10-01 | 2004-04-22 | Mitsubishi Electric Corp | エレベータの制御装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3822466A1 (de) * | 1987-07-21 | 1989-02-02 | Univ Magdeburg Tech | Verfahren zur kontrolle von lage und bewegung seilbewegter transporteinrichtungen |
JPH01250712A (ja) * | 1988-03-31 | 1989-10-05 | Nippon Steel Corp | ケーブル素線の撚り角測定法 |
DE8904375U1 (de) * | 1989-04-07 | 1989-07-27 | TÜV Bayern e.V., 8000 München | Vorrichtung zum Erfassen von physikalischen Kenngrößen eines Aufzugs |
JPH0733228B2 (ja) * | 1989-08-07 | 1995-04-12 | 三菱電機株式会社 | エレベーターの異常検出装置 |
JPH06180289A (ja) * | 1992-12-11 | 1994-06-28 | Nippon Steel Weld Prod & Eng Co Ltd | 粉粒体充填率の測定方法 |
US5660676A (en) * | 1995-10-19 | 1997-08-26 | Brooks; Robert E. | High speed labeler |
JP2002120977A (ja) * | 2000-10-13 | 2002-04-23 | Mitsubishi Electric Corp | エレベーターのかご位置検出装置 |
CN1217846C (zh) * | 2000-11-08 | 2005-09-07 | 三菱电机株式会社 | 电梯的主绳索伸缩补偿装置 |
US20030155185A1 (en) * | 2001-03-08 | 2003-08-21 | Masami Nomura | Elevator |
JP4780876B2 (ja) | 2001-09-17 | 2011-09-28 | 東芝エレベータ株式会社 | エレベーターかごの位置検出装置及びその方法 |
JP4553535B2 (ja) * | 2001-09-28 | 2010-09-29 | 三菱電機株式会社 | エレベータ装置 |
JP2004149231A (ja) * | 2002-10-29 | 2004-05-27 | Mitsubishi Electric Building Techno Service Co Ltd | エレベータの非常停止装置 |
JP4267335B2 (ja) * | 2003-01-30 | 2009-05-27 | 三菱電機株式会社 | エレベータの制動制御装置 |
WO2005113401A1 (ja) * | 2004-05-24 | 2005-12-01 | Mitsubishi Denki Kabushiki Kaisha | エレベータ制御装置 |
US7428951B2 (en) * | 2004-08-19 | 2008-09-30 | Mitsubishi Denki Kabushiki Kaisha | Brake device for elevator |
US7245129B2 (en) * | 2005-02-14 | 2007-07-17 | Texas Instruments Incorporated | Apparatus for and method of cable diagnostics utilizing time domain reflectometry |
-
2004
- 2004-05-28 ES ES11173421T patent/ES2409281T3/es not_active Expired - Lifetime
- 2004-05-28 WO PCT/JP2004/007725 patent/WO2005115902A1/ja active Application Filing
- 2004-05-28 BR BRPI0417228-0A patent/BRPI0417228B1/pt not_active IP Right Cessation
- 2004-05-28 CA CA2547002A patent/CA2547002C/en not_active Expired - Fee Related
- 2004-05-28 US US10/580,837 patent/US7578373B2/en not_active Expired - Fee Related
- 2004-05-28 JP JP2006519182A patent/JP4849465B2/ja not_active Expired - Fee Related
- 2004-05-28 KR KR1020087003811A patent/KR100949632B1/ko not_active IP Right Cessation
- 2004-05-28 EP EP11173421A patent/EP2380838B1/en not_active Expired - Lifetime
- 2004-05-28 ES ES04735333T patent/ES2379657T3/es not_active Expired - Lifetime
- 2004-05-28 PT PT111734216T patent/PT2380838E/pt unknown
- 2004-05-28 PT PT04735333T patent/PT1749780E/pt unknown
- 2004-05-28 CN CNB200480025082XA patent/CN100509601C/zh not_active Expired - Lifetime
- 2004-05-28 EP EP04735333A patent/EP1749780B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4220750Y1 (ja) * | 1964-01-14 | 1967-12-02 | ||
JPS5931274A (ja) * | 1982-08-09 | 1984-02-20 | 株式会社東芝 | エレベ−タ乗かご位置検出装置 |
JPH08198538A (ja) * | 1992-10-15 | 1996-08-06 | Shimizu Corp | エレベータケージの位置検出・表示装置 |
JPH0940333A (ja) * | 1995-08-02 | 1997-02-10 | Meidensha Corp | 垂直搬送装置のすべり検出装置 |
JP2004123279A (ja) * | 2002-10-01 | 2004-04-22 | Mitsubishi Electric Corp | エレベータの制御装置 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1857397A3 (de) * | 2006-03-08 | 2008-07-09 | TÜV Rheinland Industrie Service GmbH | Seilschlupf-Detektor |
JP2008019052A (ja) * | 2006-07-13 | 2008-01-31 | Otis Elevator Co | エレベータの終端階強制減速装置 |
WO2010032288A1 (ja) * | 2008-09-17 | 2010-03-25 | 三菱電機株式会社 | Cwtレスエレベータ |
JP5398721B2 (ja) * | 2008-09-17 | 2014-01-29 | 三菱電機株式会社 | Cwtレスエレベータ |
WO2011004445A1 (ja) * | 2009-07-06 | 2011-01-13 | 三菱電機株式会社 | エレベーター装置 |
JP5460712B2 (ja) * | 2009-07-06 | 2014-04-02 | 三菱電機株式会社 | エレベーター装置 |
CN102471019B (zh) * | 2009-07-06 | 2015-05-06 | 三菱电机株式会社 | 电梯装置 |
US11492231B2 (en) * | 2016-05-23 | 2022-11-08 | Mitsubishi Electric Corporation | Elevator apparatus |
US11597629B2 (en) * | 2018-12-27 | 2023-03-07 | Otis Elevator Company | Elevator system operation adjustment based on component monitoring |
US20210284499A1 (en) * | 2020-03-10 | 2021-09-16 | Kone Corporation | Method for releasing safety gears, and a stalling detector |
Also Published As
Publication number | Publication date |
---|---|
EP1749780A1 (en) | 2007-02-07 |
BRPI0417228A (pt) | 2007-04-17 |
PT1749780E (pt) | 2012-05-22 |
EP2380838A2 (en) | 2011-10-26 |
EP1749780B1 (en) | 2012-03-07 |
EP2380838A3 (en) | 2012-03-14 |
EP2380838B1 (en) | 2013-03-06 |
PT2380838E (pt) | 2013-06-04 |
JPWO2005115902A1 (ja) | 2008-03-27 |
CA2547002A1 (en) | 2005-12-08 |
US7578373B2 (en) | 2009-08-25 |
CN100509601C (zh) | 2009-07-08 |
JP4849465B2 (ja) | 2012-01-11 |
ES2409281T3 (es) | 2013-06-26 |
ES2379657T3 (es) | 2012-04-30 |
BRPI0417228B1 (pt) | 2017-11-07 |
EP1749780A4 (en) | 2010-03-10 |
CN1845868A (zh) | 2006-10-11 |
KR20080020706A (ko) | 2008-03-05 |
KR100949632B1 (ko) | 2010-03-26 |
US20080190710A1 (en) | 2008-08-14 |
CA2547002C (en) | 2011-09-06 |
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