WO2005105651A1 - Appareil élévateur - Google Patents

Appareil élévateur Download PDF

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Publication number
WO2005105651A1
WO2005105651A1 PCT/JP2004/006326 JP2004006326W WO2005105651A1 WO 2005105651 A1 WO2005105651 A1 WO 2005105651A1 JP 2004006326 W JP2004006326 W JP 2004006326W WO 2005105651 A1 WO2005105651 A1 WO 2005105651A1
Authority
WO
WIPO (PCT)
Prior art keywords
car
speed
abnormality
output
elevator
Prior art date
Application number
PCT/JP2004/006326
Other languages
English (en)
Japanese (ja)
Inventor
Mineo Okada
Ken-Ichi Okamoto
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to PCT/JP2004/006326 priority Critical patent/WO2005105651A1/fr
Priority to JP2006519143A priority patent/JP4292203B2/ja
Priority to EP04730674.1A priority patent/EP1741659B1/fr
Priority to CNB2004800125904A priority patent/CN100439226C/zh
Publication of WO2005105651A1 publication Critical patent/WO2005105651A1/fr

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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
    • 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
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
    • 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

Definitions

  • the present invention relates to an elevator apparatus in which a car is suspended in a hoistway by a main rope.
  • a governor In a conventional elevator system, a governor is used to operate an emergency stop device mounted on a car.
  • Japanese Patent Application Laid-Open Publication No. 2000-80840 discloses a governor for detecting an abnormal elevator speed and a wedge against a cage guide rail for guiding the cage to prevent the cage from falling.
  • a safety device for stopping is shown.
  • a governor rope is wrapped around the sheave of the governor, which moves in synchronization with the elevation of the car.
  • the car has a safety link connected to the governor rope and linked to the wedge of the safety gear.
  • the safety link is activated by the governor rope restraint, and the wedge is pressed against the car guide rail. The car is prevented from falling by the braking force of this pressing.
  • the present invention has been made to solve the above-described problems, and has as its object to obtain an elevator apparatus that can reduce the time required from the detection of an abnormality to the generation of a braking force.
  • the elevator apparatus according to the present invention includes a car that is raised and lowered in a hoistway, a car guide rail that guides the car up and down, a braking member that is mounted on the car, and that brakes the car by contacting the car guide rail.
  • the output part that electrically detects and outputs an operation signal when an abnormality is detected, the actuator part that receives the operation signal from the output part, and the elevator are mechanically detected, and the operating force is mechanically applied to the braking member.
  • the braking member When the operation signal is input to the actuator section, the braking member is operated to brake, and even if the operation signal is not input to the actuator section, the abnormality is detected by the mechanical detection section. Then, the braking member is braked by the operation force from the mechanical detection means.
  • 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 an emergency stop device of FIG. 1,
  • 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. 4,
  • FIG. 6 is a front view showing the safety device during operation of FIG. 5,
  • FIG. 7 is a front view showing the driving unit of FIG. 6,
  • 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 an embodiment of the present invention.
  • FIG. 11 is a configuration diagram schematically illustrating an elevator apparatus according to Embodiment 5
  • FIG. 11 is a configuration diagram schematically illustrating an elevator apparatus according to Embodiment 6 of the present invention
  • FIG. 12 is another example of the elevator apparatus of FIG. 11.
  • FIG. 13 is a configuration diagram schematically showing an elevator device according to Embodiment 7 of the present invention
  • FIG. 14 is a configuration diagram schematically showing an elevator device according to Embodiment 8 of the present invention
  • 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 an emergency stop device according to Embodiment 10 of the present invention
  • FIG. 19 is a graph showing the car speed abnormality judgment criteria stored in the storage unit of FIG. 18,
  • FIG. 20 is a graph showing the car acceleration abnormality judgment criteria stored in the storage unit of FIG. 18, and
  • 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 in which 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.
  • Figure 27 is a perspective view showing the car and door sensor of Figure 26,
  • 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 block diagram showing the upper part of the hoistway of FIG. 29,
  • FIG. 31 is a configuration diagram showing an elevator apparatus according to Embodiment 17 of the present invention.
  • FIG. 32 is a side view showing the car of FIG. 31 in an enlarged manner.
  • FIG. 33 is a front view showing the safety device of FIG. 32.
  • FIG. 34 is a front view showing an operation state of the emergency stop device of FIG. 33 by the actuator unit.
  • FIG. 35 is a front view showing an operation state of the safety device of FIG. 33 by mechanical detection means
  • FIG. 36 is a side view showing a car of the elevator device according to Embodiment 18 of the present invention
  • FIG. FIG. 36 is a front view showing the car suspension wheel of FIG. 6,
  • FIG. 38 is a configuration diagram showing an elevator apparatus according to Embodiment 19 of the present invention
  • FIG. 39 is a configuration diagram showing an elevator apparatus according to Embodiment 20 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 hoist (not shown) for raising and lowering the car 3 and the counterweight (not shown) is arranged.
  • the main rope 4 is wound around the drive sheave of the hoisting machine.
  • 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 speed governor 6 serving as a car speed detecting means for detecting the hoisting speed of the car 3 is arranged.
  • the governor 6 has a governor body 7 and a governor sheep 8 rotatable with respect to the governor body 7.
  • a rotatable pulley 9 is arranged.
  • 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 speed governor 6 operates the brake device of the hoisting machine when the elevator speed of the car 3 reaches a preset first overspeed.
  • the governor 6 has a car
  • a switch unit 11 When the descending speed of 3 becomes the second overspeed (set overspeed) higher than the 1st overspeed, a switch unit 11 is provided as an output unit that outputs an actuation signal to the emergency stop device 5 .
  • the switch portion 11 has a contact portion 1.6 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 section 16 has a power cable 14 and a connection cable 1 for a battery 12 which is an uninterruptible power supply that can supply power even during a power failure, and a control panel 13 for controlling the operation of the elevator, respectively.
  • a control cable (moving cable) is connected between the car 3 and the control panel 13 Yes.
  • 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 of the safety gears 5 includes a pair of braking members wedges 19 that can be brought into contact with and separated from the car guide rail 2, and a pair of wedges 19 connected to the wedges 19 to displace the wedges 19 with respect to the car 3.
  • a pair of guides 21 fixed to the support member 18 and guiding the wedges 19 displaced by the actuator 20 in the direction in contact with the car guide rails 2.
  • the pair of wedges 19, the pair of actuator units 20 and the pair of guide units 21 are symmetrically arranged on both sides of the car guide rail 2, respectively.
  • 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. Electromagnetic magnet
  • the emergency stop wiring 17 is connected to the electromagnetic magnet 24.
  • Wedge 19 has a permanent magnet facing electromagnetic magnet 24
  • the brake device of the hoist operates.
  • 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 wedges 19 come into contact with the cage guides 2 and are pressed.
  • the wedge 19 is displaced further upward by the contact with the car guide rail 2, and babies between the car guide rail 2 and the guide portion 21. As a result, a large frictional force is generated between the car guide rail 2 and the wedge 19, and the car 3 is braked (FIG. 3).
  • 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 car 2 has the guide portion 21 including the car 2, the pressing force of the wedge 19 against the car guide rail 2 is reliably increased when the car 3 is descending. be able to.
  • 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 unit 32, electric power for detecting the speed of the car 3 is supplied to the car speed 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 vertically movable 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 a direction in which the wedge 34 comes into contact with the car guide Renole 2 with the displacement to the guide portion 36 side.
  • the actuator section 35 is a cylindrical contact that can be separated from the car guide rail 2. It has a contact portion 37, an operating mechanism 38 for displacing the contact portion 37 in a direction of coming into contact with and separating from the car guide rail 2, and a support portion 39 for supporting the contact portion 37 and the operating mechanism 38. I have.
  • the contact portion 37 is lighter than the wedge 34 so that it can be easily displaced by the operating 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 cage 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 moved toward and away from the car guide rail 2 at an appropriate angle.
  • the wedge 34 and the actuator portion 35 are braked and displaced toward the guide portion 36.
  • 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 force and guide rail 2. With the upward displacement of the wedge 34 and the actuator section 35 with respect to the guide section 36, the wedge 34 is displaced along the inclined surface 44. As a result, 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.
  • Disc spring 4 6 is movable It is deformed by the reciprocal displacement of the 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 the input of the operation signal to the electromagnetic magnet 48, and are repelled by each other. That is, the first electromagnetic unit 49 is displaced away from the second electromagnetic unit 5 ° together with the movable unit 40 by the input of the operation signal to the electromagnetic magnet 48.
  • the output section 32 outputs a return signal for return after the operation of the emergency stop mechanism 5 at the time of return.
  • 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 9 and the second electromagnetic section 50 are repelled from each other.
  • the movable portion 40 is displaced to the contact position by the electromagnetic repulsion.
  • the contact portion 37 is displaced in a direction in which the contact portion 37 comes into contact with the car guide Reno rail 2.
  • the direction of the bias of 46 is reversed to the direction of holding the movable portion 40 at the contact position.
  • the contact portion 37 comes into contact with the cage guide rail 2 and is pressed against the wedge 34 and the arc.
  • the tutor section 35 is 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.
  • a return signal is transmitted from the output unit 32 to the electromagnetic magnet 48.
  • the first electromagnetic section 49 and the second electromagnetic section 50 are attracted to each other, and the movable section 40 is displaced to the open position.
  • the contact portion 37 is displaced in a direction in which the contact portion 37 is separated from the car guide rail 2.
  • the biasing direction of the disc spring 46 is reversed, and the movable portion 40 is held at the separation position. In this state, the car 3 is raised, and the pressing of the wedges 3 4 and the contact surface 45 against the car guide rail 2 is released.
  • 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 and away 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 also includes a disc spring 4 that holds the movable unit 40 at the contact position and the separation position.
  • Embodiment 3 that can be reliably held at the 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 the door open / close sensor 58 via a control cable.
  • 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.
  • 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 outputs an operation signal when the car 3 moves up and down with the car entrance 26 open with the speed detection signal from the car speed sensor 31 and the open / close detection signal from the door opening / closing sensor 58. Output.
  • 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 rope break that detects the breakage of the main rope 4. 2004/006326
  • the disconnection detection lead 61 serving as the detection means is passed through.
  • 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 detection conductor 61 for detecting the disconnection of the main rope 4 are electrically connected to the output section 62, and the main rope Since the operation signal is output from the output unit 6 2 to the safety gear 3 3 when the machine 4 is disconnected, the car descends at an abnormal speed by detecting the speed of the car 3 and detecting the main rope 4 being cut.
  • the car 3 can be more reliably braked.
  • a method of detecting whether the disconnection detection conductor 61 inserted in the main rope 4 is energized is used as the rope break detection means, for example, a change in the tension of the main rope 4. 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 includes a speed detection signal from the car speed sensor 31 and the speed detection signal from the car position sensor 65. 6 Your position signal is input.
  • 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 outputs an operation signal 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. Is output, so that 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.
  • a lower car 72 which is a second car located below 71, is arranged.
  • the lower car 7 and the lower car 7 2 are guided by the car guide rail 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 first main rope (not shown) is applied to the drive sheave of the first hoist.
  • a second main rope (not shown) is wound around the drive sheave of the second hoist.
  • 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, are provided.
  • the position of the upper car 7 1 and the position of the lower car 7 2 are detected.
  • An upper car position sensor 75 and a lower car position sensor 76 as car position detecting means 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 cable 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 detection signal from upper car position sensor 75, and lower car position sensor 7 The lower car position detection signal from 6 is 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.
  • Example 06326 For example, when the collision of the upper car 7 1 and the lower car 7 2 is predicted at the output unit 7 9 by cutting the first main rope suspending the upper car 7 1, the emergency An operation signal is output to the stop device 77 and the lower car emergency stop device 78. 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 detects the actual movement of each of the upper car 71 and the lower car 72 ascending and descending in the same hoistway 1, Predict the presence or absence of a collision between the upper car 7 1 and the lower car 7 2 based on the information, and output an operation signal to the upper car emergency stop device 7 7 and the lower car emergency stop device 7 8 when a collision is predicted. Since the output unit 79 is provided, collision between the upper car 71 and the lower car 72 can occur even if the speed of each of the upper car 71 and the lower car 72 does not reach the set overspeed. When predicted, the emergency stop device 77 for the upper car and the emergency stop device 78 for the lower car can be operated, and collision between the upper car 71 and the lower car 72 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, but 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.
  • the activation signal is The output from the output unit 79 is output only to the safety gear installed on the abnormally moving one of the upper car 71 and the lower car 72.
  • 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 as an output section
  • the lower car 72 has an output section 82 for a lower car as 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 unit 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.
  • the upper car output unit 81 outputs 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 the lower car is used to predict the presence or absence of a collision with the upper car 71 of the lower car 72, and to output an activation signal to the lower car emergency stop device 78 when a collision is predicted. It is like that. Further, when the lower car detection information is input, the lower car output section 82 causes the upper car 71 to travel to the lower car 72 at the maximum speed during normal operation. It is assumed that there is a collision with the lower car 7 2 and the upper car 7 1 assuming that there is a collision.
  • 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.
  • upper car 7 1 and lower car 7 2 have upper car 7 1 and lower car 7
  • a car-to-car distance sensor 91 that is a car-to-car distance detecting means for detecting a distance between the car 2 and the car 2 is mounted.
  • 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.
  • the upper car output section 8 1 has an upper car speed sensor 73, a lower car speed sensor 74, The car position sensor 75 and the car distance sensor 91 are electrically connected.
  • 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 provided with 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, in this embodiment). , "Detection information for the upper car") to predict the presence or absence of a collision with the lower car 72 of the upper car 71, and output an operation signal to the upper car emergency stop device 77 when a collision is predicted. It is supposed to.
  • 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 the lower car") to predict the presence or absence of a collision with the upper car 71 of the lower car 72, and output an operation signal to the lower car emergency stop device 78 when a collision is predicted. It is supposed to. Other configurations are the same as those of the seventh embodiment.
  • 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 opening / closing 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 includes the first electromagnetic unit 49 and the first electromagnetic unit.
  • the movable part 40 is displaced.
  • the car speed detecting means is provided in the hoistway 1. However, it may be installed in the basket. 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.
  • an emergency stop device 155 includes a wedge 34, an actuator portion 156 connected to a lower portion of the wedge 34, and a guide portion 3 disposed above the wedge 34 and fixed to the car 3. And 6.
  • 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 15 connected to the respective contact sections 157. 8b and an operating mechanism 1559 for displacing one link member 1558a with respect to the other link member 1558b in a direction in which each contact portion 157 contacts and separates from the car guide rail 2. And a contact portion 157, a link member 158a, 158b, and a support portion 160 supporting 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.
  • a connecting member 1 that rotatably connects the link members 158 a and 158 b at the crossed portions of the link members 158 a and 158 b is provided on the support portion 160. 6 1 are provided.
  • one link member 158a is provided rotatable 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 a direction away from the car guide rail 2 by the other end of the link member 158a, 158b being displaced in a direction away from each other.
  • the operating mechanism 159 is disposed between the other ends of the link members 158a and 158b. ing. 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. Actuation mechanism 1 5 9
  • the movable part 16 2 is composed of a movable core 16 4 housed in the driving part 16 3 and a movable core 1
  • the driving part 16 3 is a side wall part 16 that connects the pair of restricting parts 16 a, 16 b and the restricting parts 16 a, 16 b to each other.
  • the movable core 16 4 is contained in the fixed core 16 6 surrounding the moving core 1 64 and the movable core 16 4 is displaced in the direction in contact with one of the regulating parts 16 6 a by energization.
  • An annular permanent magnet 169 is provided between the first coil 167 and the second coil 168.
  • 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.
  • a space serving as a magnetic resistance exists between the movable iron core 164 and the other regulating portion 1666b.
  • the amount of magnetic flux of the permanent magnet 169 is larger on the first coil 167 side than on the second coil 168 side.
  • the movable iron core 16 4 is held in contact with one of the restricting portions 16 6 a.
  • a space serving as a magnetic resistance is provided between the movable iron core 16 4 and one regulating part 16 6 a.
  • the amount of magnetic flux of the permanent magnet 169 becomes larger on the second coil 168 side than on the first coil 167 side, and the movable iron core 164 is connected to the other regulating part 166 b. It is kept in contact.
  • 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 the force for maintaining the contact of the movable iron core 164 with the other regulating portion 166b by the input of the return signal.
  • 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 section 36 and is separated from the car guide rail 2. ing.
  • 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 in directions approaching each other, and come into contact with the car guide rail 2.
  • the wedge 34 and the actuator section 15 55 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.
  • a return signal is transmitted from the output unit 32 to the first coil 1667.
  • magnetic flux is generated around the first coil 167, and the movable iron core 164 is displaced from the contact position to the separation position.
  • the pressing of the wedge 34 and the contact surface 45 against the car guide rail 2 is released.
  • FIG. 17 is a partially cutaway side view showing the safety device according to Embodiment 10 of the present invention.
  • an emergency stop device 1 75 is provided with a wedge 34, an actuator section 1 76 connected to a lower portion of the wedge 34, and a guide section 3 disposed above the wedge 34 and fixed to the car 3. And 6.
  • 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 178 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. 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 integrated around the fixed shaft 180. It is rotatable.
  • the length of the first link portion 178 is longer than the length of the second link portion 179.
  • a long hole 182 is provided at the tip of the first link portion 178.
  • a slide bin 1 8 3 slidably inserted into the slot 1 8 2 is fixed. Is defined. 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 1 77 has a wedge 34 opened below the guide portion 36 and an open position, and a gap 34 is inserted between the car guide rail and 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 drive unit 62 is retracted to the drive unit 16 3 and is located at the open position. At this time, the distance between the wedge 34 and the guide portion 36 is maintained, and the wedge 34 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.
  • 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.
  • 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 sheet around which a plurality of main ropes 4 are wound and rotated by the driving device main body 103.
  • the hoisting machine 101 has a deflecting wheel 105 around which each main rope 4 is wound, and a winding means as braking means for braking the rotation of the drive sheave 104 to decelerate the car 3.
  • Upper machine brake device (brake 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 1108 includes a car position sensor 1109 which is a car position detecting unit for detecting the position of the car 3, and a car speed sensor 110 which is a car speed detecting unit for detecting the speed of the car 3.
  • a car acceleration sensor 111 which is a car acceleration detector for detecting the acceleration of the car 3, is electrically connected to the force S, respectively.
  • the car position sensor 109, the car speed sensor 110, and the car acceleration sensor 111 are provided in the hoistway 1.
  • the detecting means 112 for detecting the state of the elevator has a car position sensor 109, a car speed sensor 110 and a car acceleration sensor 111. Further, as the car position sensor 109, an encoder that 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 a displacement amount of linear movement A linear encoder that detects the position of car 3 by measuring, or, for example, an emitter and a receiver installed in hoistway 1 and a counter installed in car 3! And an optical displacement measuring device having a plate and detecting the position of the car 3 by measuring the time required from the light emission of the light emitter to the light reception of the light receiver.
  • 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 information of the detection unit 112 and the storage unit 113.
  • the car speed abnormality judgment criterion which is the abnormality judgment criterion for the speed of the car 3
  • the car acceleration abnormality judgment criterion which is the abnormality judgment criterion for the acceleration of the car 3 are stored in the storage unit 113. .
  • FIG. 19 is a graph showing the car speed abnormality judgment criteria stored in the storage unit 113 of FIG. It is rough.
  • the elevator section of the car 3 in the hoistway 1 (the section between one terminal floor and the other terminal floor) 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 in which 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 are continuous toward the terminal floor in the acceleration / deceleration section so that they have a constant value in the constant speed section. Each is set so as to be smaller in size.
  • 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 Each is set corresponding 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. Also, the 1st abnormal acceleration detection pattern 1 19 and the normal acceleration The difference between the detection pattern 1 18 and the difference between the second abnormal acceleration detection pattern 1 20 and the first abnormal acceleration detection pattern 1 19 is set to be substantially constant at all positions in the ascending and descending sections. ing.
  • 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.
  • An emergency stop device 33, a control panel 102, a hoisting machine brake device 106, a detecting means 112 and a storage unit 113 are electrically connected to the output unit 114.
  • 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 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 acceleration of the car 3 based on the input of the speed detection signal and the acceleration detection signal. Are calculated as a plurality of types (two types in this example) of abnormality judgment factors.
  • 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 also outputs a stop signal to the control panel 102 to stop driving of the hoisting machine 101 at the same time as outputting an 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 117, 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.
  • Position detection signal from car position sensor 109 When the speed detection signal from the speed sensor 110 and the acceleration detection signal from the car acceleration sensor 111 are input to the output unit 114, the output unit 114 Based on this, the position, speed and acceleration of the car 3 are calculated. 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 14 detects that there is an abnormality in the speed of car 3.
  • the operation signal is output from the output unit 114 to the hoist brake device 106, and the stop signal is output to the control panel 102, respectively. Thereby, the hoisting machine 101 is stopped, and the hoisting machine brake device 106 is operated, whereby 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 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 acquires 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 acquires the acquired speed of the car 3
  • the monitoring device is configured to output an operation signal to at least one of the brake device 106 for the hoisting machine and the emergency stop device 33 when it is determined that any of the accelerations of the car 3 and the acceleration is abnormal.
  • the monitoring device 108 also stores a car speed abnormality judgment criterion for judging the presence or absence of an abnormality in the speed of the car 3 and a car acceleration abnormality judgment criterion for judging the presence of an abnormality in the acceleration of the car 3. Since the storage unit 1 13 is used, it is possible to easily change the criteria for determining whether or not each of the speed and acceleration of the car 3 is abnormal, and to easily change the design of the elevator. Can respond.
  • 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 10 0 when the speed of the car 3 exceeds the first abnormal speed detection pattern 1 16
  • the monitoring device 1 108 applies the braking device for the hoisting machine. Since an operation signal is output to 106 and the safety gear 33, the car 3 can be braked stepwise according to the magnitude of the speed abnormality of the car 3. Therefore, it is possible to reduce the frequency of giving a large impact to the car 3 and to stop the car 3 more reliably.
  • the car acceleration abnormality judgment criteria include the normal acceleration detection pattern 1
  • the first abnormal acceleration detection pattern 1 19 having a value larger than the acceleration detection pattern 1 18 and the second abnormal acceleration detection pattern 1 20 having a value larger than the first abnormal acceleration detection pattern 1 19 Is set, and when the acceleration of the car 3 exceeds the first abnormal acceleration detection pattern 1 19, an operation signal is output from the monitoring device 108 to the brake device 106 for the hoisting machine, and the car 3
  • an operation signal is output from the monitoring device 108 to the brake device 106 for the hoisting machine and the emergency stop device 33. Therefore, the car 3 can be braked stepwise according to the magnitude of the abnormal acceleration of the car 3.
  • 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 normal speed detection pattern 1 15, the first abnormal speed detection pattern 1 16 and the second abnormal speed detection pattern 1 17 are set corresponding to the position of car 3, the first abnormal speed detection pattern Each of the pattern 1 16 and the second abnormal speed detection pattern 1 17 can be set to correspond to the normal speed detection pattern 1 15 at all positions of 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 according to the degree of abnormality in the speed and acceleration of the car 3 which is each abnormality determination element. However, the braking means for outputting the operation signal may be determined in advance for each abnormality determining element.
  • Embodiment 1 2 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 abnormality determination criterion generation device 128 is electrically connected to each of the hall call buttons 125 and each of the destination floor buttons 126.
  • the abnormality detection criterion generation unit 128 receives a position detection signal from the car position sensor 109 via the 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) Select one from the storage unit 12 9 and the car speed abnormality judgment criterion and the car acceleration abnormality judgment criterion, and output the selected car speed abnormality criterion and car acceleration abnormality criterion.
  • 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 detection 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. Also, the generator 1 3 A value of 0 selects 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 to the generation unit 130 from the selected button, the generation unit 130 In, the detection position and the destination floor of the car 3 are calculated based on the input of the position detection signal and the call signal, and the car speed abnormality judgment criterion and the car acceleration abnormality judgment criterion are selected one by one. Thereafter, the selected car speed abnormality determination criterion and the car acceleration abnormality determination criterion are output from the generation unit 130 to the output unit 114 by 3 ⁇ .
  • 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.
  • the subsequent operation is 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 each directly selected based on the normal speed pattern and the normal acceleration pattern of the car 3 generated by the control panel 102. May be generated.
  • FIG. 22 schematically shows 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 first abnormality level, in which at least one main rope 4 is broken, and the second abnormality level, in which all main ropes 4 are broken, are set as the rope abnormality determination criteria.
  • 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. It is calculated as a type (two types in this example) of abnormality judgment factors.
  • the output unit 1 14 is provided with a brake 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 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. 19) or when all the main ropes 4 are broken.
  • 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 of 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 1 3 1 connects each main rope 4 to the car 3 It has a plurality of rope connections 1 34.
  • 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 expansion 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 outputs the car speed abnormality judgment criterion and the mouth open abnormality judgment criterion respectively obtained from the storage unit 113, and the speed and speed of the car 3 calculated based on the input of each detection signal. ⁇ ⁇ The number of broken main ropes 4 is compared with each other, and the presence of abnormalities in the speed of the car 3 and the state of the main ropes 4 are 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 hoist 101 is stopped, the brake device 106 for the hoist 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 brake device 10 10 for the hoisting machine 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 acquires the speed of the car 3 and the state of the main rope 4 based on information from the detecting means 112 for 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 is increased, and not only the speed of the car 3 but also the status of the main rope 4 can be detected. Can be made 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 may be installed.
  • one end and the other end of the main rope 4 are connected to the car 3 and the counterweight.
  • the present invention is applied to an elevator device of a type in which a car 3 and a counterweight 1 07 are suspended in the hoistway 1 by connecting the car 3 to the hoistway 1, respectively.
  • the main rope 4 connected to the internal structure is wound around the car suspension and the counterweight suspension, respectively, and the car 3 and the counterweight 107 are suspended in the hoistway 1.
  • the present invention may be applied to the Eve elevator apparatus.
  • 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 break detection 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 conduction to the conductor embedded in each main rope 4, so that each main rope 4 is accelerated and decelerated by the car 3.
  • the presence or absence of breakage of each main rope 4 can be more reliably detected without being affected by the tension change.
  • 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 output unit 114 calculates the position of the car 3 based on the input of the position detection signal, In addition, based on the respective input of the speed detection signal and the door closing detection signal, the speed of the car 3 and the state of the car entrance 26 are respectively calculated as a plurality of types (two types in this example) of abnormality determination elements. .
  • 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 14 ⁇ of FIG. 26.
  • 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.
  • the door sensor 140 detects the displacement of the pair of car doors 28 to the respective door closing positions, 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. After that, the output unit 114 outputs the car speed abnormality judgment criterion and the entrance / exit abnormality judgment criterion respectively obtained from the storage unit 113, and the speed and the like of the car 3 calculated based on the input of each detection signal. The condition of car doors 28 is compared with the speed of car 3 and the The presence or absence of an abnormality in each of the states of the mouth 26 is detected.
  • 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 each of the speed of the car 3 and the state of the car entrance 26, and the normal operation of the elevator is continued.
  • 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 1 6 and the stop signal to the control panel 102, respectively.
  • 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 abnormality of the car entrance 26 is detected by the output section 114, and the operation signal and A stop signal is 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 for detecting the condition of the elevator, and acquires the acquired car.
  • 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 necessary to shorten the time taken from the occurrence of an elevator abnormality to the generation of braking force on car 3. 4 006326.
  • 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.
  • Drive power is supplied to the hoisting machine 101 through 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 (C T) that measures an induced current generated according to the magnitude of the current flowing through the power supply cable 150.
  • 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 1 1.2 has a car position sensor 109, a car speed sensor 110 and a current sensor 151.
  • the useful part 1 13 includes a car speed abnormality determination criterion similar to that of the embodiment 11 as shown in FIG. 19 and a criterion for determining whether there is an abnormality in the state of the hoisting machine 101.
  • the drive abnormality judgment 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. When the value exceeds the value of the first abnormal level in the reference, an operation signal (trigger signal) is output to the brake device 104 for the hoisting machine. In addition, the output unit 114 detects when the speed of the car 3 exceeds the second abnormal speed detection pattern 1 17 (FIG. 19) or when the magnitude of the current flowing through the power supply cable 150 is When the value of the second abnormal level in the judgment standard is exceeded, the brake device 1
  • An operation signal is output to 0 4 and the safety gear 3 3. 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 section 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 section 114, the output In the unit 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 car 3 is almost equal to the normal speed detection pattern 1 15 (Fig. 19). Since the current value flowing through the power supply cable 150 is at the normal level, the output section 114 has the speed of the car 3 and the state of the hoist 101 respectively. Is normal, 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 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 brake device 106 for the hoisting machine.
  • Outputs are output from the output units 114 to the control 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 section 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 brake device 106 for the hoist and the emergency stop device 33 is required. Since an operation signal is output, the number of detection targets for elevator abnormalities increases, and the braking force applied to car 3 after an elevator abnormality occurs. It is possible to shorten the time required until the occurrence.
  • the state of the hoisting machine 101 is detected using the current sensor 151 that 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 upper 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 output unit 114 is mounted separately from the safety gear 3 on the car 3, a car brake that brakes the car 3 by sandwiching the car guide rail 2, mounted on the counterweight 107, and a counterweight A counterweight that guides 107 A counterweight brake that sandwiches the guide rail, or a counterweight brake that brakes 107, or a main rope that is provided in the hoistway 1 and restrains the main 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.
  • 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.
  • Embodiment 17
  • FIG. 31 is a configuration diagram showing an elevator apparatus according to Embodiment 17 of the present invention.
  • a mounting frame 201 that can be displaced in a direction (upward and downward) that comes into contact with and separates from the car 3 is provided below the car 3.
  • a plurality of stop horns 202 for restricting (restricting) the displacement of the mounting frame 201 with respect to the car 3 in a direction close to the car 3. .
  • a biasing means 203 for biasing in the direction is provided.
  • the urging means 203 for example, a spring or the like is used.
  • a pair of car suspension wheels 204 a and 204 b are mounted on the mounting frame 201.
  • the main ropes 4 are wound around the car suspension vehicles 204 a and 204 b.
  • a counterweight suspension wheel 205 is mounted at the top of the counterweight 107.
  • the main rope 4 is wound around the counterweight suspension wheel 205.
  • the main rope 4 has first and second ends 4a, 4b.
  • the first and second ends 4a, 4b are connected to a support beam 206 fixed to the upper part of the hoistway 1 via a rope stopper (not shown).
  • the main ropes 4 are, in order from the first end 4a side, a car suspension wheel 204a, 204b, a driving sheave 104, a deflecting wheel 105, and a counterweight lifting vehicle 200. It is wound around 5. That is, the car 3 and the counterweight 107 are suspended in the hoistway 1 by the main rope 4 in a 2: 1 roping method.
  • a plurality of safety devices 5 are mounted on the lower part of the car 3 as in the first embodiment.
  • the emergency stop device 5 is mounted on a lower portion (lower frame) of a car frame (not shown) of the car 3.
  • the mounting frame 201 is located further below the car frame.
  • the emergency stop device 5 performs a braking operation when an operation signal (command signal) from the output unit 200 is directly or indirectly input.
  • the output section 200 electrically detects abnormality of the elevator such as overspeed of the car 3, movement of the car 3 with the door open, and breakage of the main rope 4, for example. Outputs the operation signal.
  • FIG. 32 is a side view showing the car 3 of FIG. 31 in an enlarged manner.
  • a pair of pulleys 207 is provided on the side surface of the car 3.
  • a pair of wires 208 serving as operating force transmitting means is wound around the pulley 2007.
  • the first end 208 a of the wire 208 is connected to the mounting frame 201.
  • the second end 208 b of the wire 208 is connected to the safety device 5.
  • FIG. 33 is a front view showing the safety device 5 of FIG.
  • the second end 208b of the wire 208 is connected to a wedge 19 serving as a braking member. Wires 208 are in the basket
  • the mechanical detecting means 209 of the embodiment 17 includes a mounting frame 201, a stopper 202, and a It has a biasing means 203 and a wire 208.
  • Other configurations are the same as those of the first embodiment.
  • the brake device of the drive unit 101 is operated, and the stop state of the car 3 is determined. Hold. In this state, if the main rope 4 breaks in this state, the car 3 cannot be braked by the operation signal from the output unit 200.
  • the wedge 19 is pulled up by the wire 208, and the car 3 is braked. That is, in normal operation, the car 3 is supported via the stopper 202 on the mounting frame 201 on which the car suspension wheels 204 a and 204 b are provided, but if the main rope 4 breaks, The car 3 is no longer supported by the mounting frame 201. For this reason, the mounting frame 201 is pushed down in a direction (downward) to be separated from the car 3 by the urging means 203, and the distance between the mounting frame 201 and the car 3 is increased. The displacement of the mounting frame 201 with respect to the car 3 is transmitted to the wedge 19 via the wire 208, and the wedge 19 is braked.
  • the magnetic attractive force of the electromagnetic magnet 24 is smaller than the urging force of the urging means 203, and when the wedge 19 is pulled up by the wire 208, the electromagnetic magnet 24 is separated from the permanent magnet 25. It will be forcibly pulled apart and will not hinder the braking action of wedge 19. That is, the actuator section 20 and the mechanical detection means 209 are independent of each other and do not hinder each other's operations.
  • the car 3 can be braked earlier by the operation signal from the output unit 200. Also, the actuator unit 2
  • the wedge 19 is braked when the power supply to the electromagnetic magnet 24 is cut off. Therefore, when the power supply to the electromagnetic magnet 24 is cut off during a power failure or inspection, the wedge 19 is braked each time.
  • the braking member can be configured to perform the braking operation by energizing the electromagnetic actuator. In this case, at the time of power failure or inspection, the car is braked by the brake device of the drive device, and if an abnormality occurs in that state, the braking member is braked by the mechanical detection means 209.
  • FIG. 36 is a side view showing the car 3 of the elevator apparatus according to Embodiment 18 of the present invention.
  • the wire 208 is connected between the wedge 19 of the safety device 5 and the car suspension wheel 204a.
  • FIG. 37 is a front view showing the car suspension wheel 204 a of FIG.
  • the car suspension wheel 204 a is rotatable with respect to the rotating shaft 211.
  • the rotating shaft 2 11 is provided with a ratchet 2 12 and a winding pulley 2 13.
  • the ratchet 2 12 and the take-up pulley 2 13 are rotatable with respect to the rotating shaft 2 1 1.
  • the take-up pulley 2 13 is configured to rotate integrally with the ratchet 2 12.
  • the first end portion 208 a of the wire 208 is wound around the winding pulley 2 13.
  • the swingable first and second flyweights 214 and 215 are mounted on the car suspension vehicle 204a.
  • Claws 2 16 are attached to the first and second fly weights 2 14 and 2 15.
  • the first and second flyweights 2 14 and 2 15 are connected to each other by connecting rods 2 17.
  • a spring 218 is provided between the first flyweight 214 and the car suspension wheel 204a.
  • the governing mechanism for detecting the overspeed of the car 3 includes a ratchet 212, flyweights 214, 215, a pawl 216, a connecting rod 217, and a spring 218.
  • the mechanical detecting means 2 19 of the embodiment 18 includes a car suspension wheel 204 a, a wire 208, a rotating shaft 211, a ratchet 221, a take-up pulley 213, and a flyway. G 2, 4, 2 15, claws 2 16, connecting rods 2 17 and springs 2 18.
  • the actuator section 20 (FIG. 33) and the mechanical detection means 219 are independent of each other and do not hinder each other's operation.
  • the car suspension vehicles 204 a and 204 b rotate at a speed corresponding to the traveling speed of the car 3.
  • the flyweights 2 14 and 2 15 are oscillated against the spring 2 18 by centrifugal force according to the rotation speed.
  • the pawl 2 16 engages the teeth of the ratchet 2 12, and the ratchet 2 1 2 and the winding
  • the take-off pulleys 21 are rotated integrally with the car suspension wheel 204a.
  • the wire 208 is wound on the winding pulley 2 13, and as shown in FIG. 35, the wedge 19 is pulled up by the wire 208, and the car 3 is braked.
  • the actuator section 20 operates normally, the wedge 19 is pushed up by the spring 23 as shown in FIG. 34 before being pulled up by the wire 208. Therefore, the raising operation of the wedge 19 by the wire 208 is performed when the actuator section 20 does not operate normally despite the lowering speed of the car 3 reaching the set overspeed.
  • the car 3 can be braked earlier by the operation signal from the output unit 200 (FIG. 31). Also, even if the actuation signal is not input to the actuator unit 20 or the actuator unit 20 is inoperable, if the descending speed of the car 3 reaches the set overspeed, the mechanical detection means The wedge 19 can be caused to perform a braking operation by 2 19. As a result, reliability can be improved.
  • the braking member may be configured to perform a braking operation by energizing the electromagnetic actuator. 2004/006326 Embodiment 1 9.
  • FIG. 38 is a configuration diagram showing an elevator apparatus according to Embodiment 19 of the present invention.
  • a mounting frame 201 to which the car suspension wheels 204 a and 204 b are mounted is fixed to a lower part of the car 3.
  • the governor 2 21 is mounted on the supporting beam 206 above the hoistway 1.
  • An endless governor rope 2 2 2 is wound around the sheave 2 2 1 a of the governor 2 2 1.
  • a part of the governor rope 2 2 2 is connected to the car 3. Thereby, the governor ropes 22 are circulated as the car 3 moves up and down. In addition, the sheave 221a of the governor 221 is rotated by the circulation of the governor rope 222.
  • the operating force transmitting means 222 includes, for example, a wire or the like.
  • the mechanical detecting means 225 of the nineteenth embodiment includes a governor 221, a governor rope 222, a tensioner 223, and an operating force transmitting means 222.
  • Other configurations are the same as those of the seventeenth embodiment.
  • the actuator section 20 (FIG. 33) and the mechanical detection means 225 are independent of each other, and do not hinder each other's operation.
  • FIG. 39 is a configuration diagram showing an elevator apparatus according to Embodiment 20 of the present invention.
  • a mechanical emergency stop device 241 that performs a braking operation by a mechanical operating force from a governor rope 222 is mounted on a lower portion of the car 3. That is, the emergency stop device 241 of the embodiment 20 is a general emergency stop device having no actuator unit.
  • an actuator section 242 for directly or indirectly receiving an operation signal (command signal) from the output section 200 and gripping the governor rope 222. Have been.
  • the governor 2 2 1 is provided with a rope catch 2 2 1 b that mechanically detects that the descending speed of the car 3 has reached the set overspeed and stops the circulation of the governor rope 2 2 2. Have been.
  • the mechanical detecting means 243 of the embodiment 20 has a governor 221.
  • the car 3 can be braked earlier by the operation signal from the output unit 200. Even if the actuation signal is not input to the actuator section 242, or even if the actuator section 242 is inoperable, if the descending speed of the car 3 reaches the set overspeed, the adjustment is performed.
  • the emergency stop device 2 41 can be operated to brake by the speed gear 2 2 1.
  • reliability can be improved.
  • the elevators of the type 2: low-pink are shown, but the roving method is not limited to this. For example, the 1 ⁇ 1 low-pink method is used. There may be.

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Abstract

Un appareil élévateur, dans lequel une partie de sortie détecte électriquement le problème d'un élévateur et, lorsqu'il y a détection de problème, envoie des signaux de fonctionnement. Les signaux de fonctionnement de la partie de sortie sont importés dans une partie motrice. Un moyen de détection mécanique détecte le problème de l'élévateur et transmet mécaniquement une force motrice à un élément de freinage. Quand les signaux de fonctionnement sont importés dans la partie motrice, l'élément de freinage actionne le freinage. Quand le problème est détecté par le moyen de détection mécanique, même si les signaux de fonctionnement ne sont pas importés dans la partie motrice, l'élément de freinage actionne le freinage par la force de fonctionnement du moyen de détection mécanique.
PCT/JP2004/006326 2004-04-30 2004-04-30 Appareil élévateur WO2005105651A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2004/006326 WO2005105651A1 (fr) 2004-04-30 2004-04-30 Appareil élévateur
JP2006519143A JP4292203B2 (ja) 2004-04-30 2004-04-30 エレベータ装置
EP04730674.1A EP1741659B1 (fr) 2004-04-30 2004-04-30 Appareil élévateur
CNB2004800125904A CN100439226C (zh) 2004-04-30 2004-04-30 电梯装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/006326 WO2005105651A1 (fr) 2004-04-30 2004-04-30 Appareil élévateur

Publications (1)

Publication Number Publication Date
WO2005105651A1 true WO2005105651A1 (fr) 2005-11-10

Family

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Family Applications (1)

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PCT/JP2004/006326 WO2005105651A1 (fr) 2004-04-30 2004-04-30 Appareil élévateur

Country Status (4)

Country Link
EP (1) EP1741659B1 (fr)
JP (1) JP4292203B2 (fr)
CN (1) CN100439226C (fr)
WO (1) WO2005105651A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006046954B4 (de) * 2006-10-04 2009-07-02 Paley, Anatoly, Prof. dRF Keilfangvorrichtung mit doppelter Ansteuerung
JP2011121742A (ja) * 2009-12-11 2011-06-23 Mitsubishi Electric Corp エレベーターの制動装置
JP2011168380A (ja) * 2010-02-22 2011-09-01 Okamura Corp スタッカクレーンにおける荷台の落下防止装置
DE102006047644B4 (de) * 2006-10-09 2012-04-12 Anatoly Paley Autonome Exzenterfangvorrichtung
WO2018030155A1 (fr) * 2016-08-09 2018-02-15 三菱電機株式会社 Dispositif d'ascenseur

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5735504B2 (ja) 2009-07-20 2015-06-17 オーチス エレベータ カンパニーＯｔｉｓ Ｅｌｅｖａｔｏｒ Ｃｏｍｐａｎｙ エレベータの調速機
US9546074B2 (en) 2011-04-01 2017-01-17 Mitsubishi Electric Corporation Elevator apparatus including an anomalous acceleration detecting mechanism
JPWO2014097373A1 (ja) * 2012-12-17 2017-01-12 三菱電機株式会社 エレベータ装置
EP3670416A1 (fr) 2018-12-20 2020-06-24 Otis Elevator Company Frein de sécurité pour un contrepoids activé par une couche de traction
CN114728760B (zh) * 2020-02-20 2023-10-31 株式会社日立制作所 电梯装置
KR102594345B1 (ko) * 2023-08-31 2023-10-26 (주)신우 프론티어 수직형 휠체어리프트의 케이지 추락방지부 시험장치

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511697A (en) 1947-12-12 1950-06-13 William C Clift Elevator safety apparatus
JPS5730270U (fr) * 1980-07-23 1982-02-17
GB2212782A (en) 1987-11-25 1989-08-02 Poon Otto L A lift with safety device
JPH033875A (ja) * 1989-05-29 1991-01-09 Mitsubishi Electric Corp リニアモータ駆動エレベータ
JPH04182293A (ja) * 1990-11-16 1992-06-29 Mitsubishi Electric Corp リニアモータ式エレベーターの制動装置
JPH06321454A (ja) * 1992-10-23 1994-11-22 Otis Elevator Co レール把持装置
JPH08324914A (ja) 1995-05-29 1996-12-10 Mitsubishi Electric Corp エレベーター装置
JPH09165156A (ja) * 1995-11-08 1997-06-24 Inventio Ag エレベータの安全性を向上させる方法および装置
JPH10139302A (ja) * 1996-11-11 1998-05-26 Inventio Ag ブレーキトリガ装置
JP2002533281A (ja) * 1998-12-23 2002-10-08 オーチス エレベータ カンパニー 電子式エレベータ安全システム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3944482B2 (ja) * 2001-12-11 2007-07-11 三菱電機株式会社 エレベーター装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511697A (en) 1947-12-12 1950-06-13 William C Clift Elevator safety apparatus
JPS5730270U (fr) * 1980-07-23 1982-02-17
GB2212782A (en) 1987-11-25 1989-08-02 Poon Otto L A lift with safety device
JPH033875A (ja) * 1989-05-29 1991-01-09 Mitsubishi Electric Corp リニアモータ駆動エレベータ
JPH04182293A (ja) * 1990-11-16 1992-06-29 Mitsubishi Electric Corp リニアモータ式エレベーターの制動装置
JPH06321454A (ja) * 1992-10-23 1994-11-22 Otis Elevator Co レール把持装置
JPH08324914A (ja) 1995-05-29 1996-12-10 Mitsubishi Electric Corp エレベーター装置
JPH09165156A (ja) * 1995-11-08 1997-06-24 Inventio Ag エレベータの安全性を向上させる方法および装置
JPH10139302A (ja) * 1996-11-11 1998-05-26 Inventio Ag ブレーキトリガ装置
JP2002533281A (ja) * 1998-12-23 2002-10-08 オーチス エレベータ カンパニー 電子式エレベータ安全システム

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1741659A4 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006046954B4 (de) * 2006-10-04 2009-07-02 Paley, Anatoly, Prof. dRF Keilfangvorrichtung mit doppelter Ansteuerung
DE102006047644B4 (de) * 2006-10-09 2012-04-12 Anatoly Paley Autonome Exzenterfangvorrichtung
JP2011121742A (ja) * 2009-12-11 2011-06-23 Mitsubishi Electric Corp エレベーターの制動装置
JP2011168380A (ja) * 2010-02-22 2011-09-01 Okamura Corp スタッカクレーンにおける荷台の落下防止装置
WO2018030155A1 (fr) * 2016-08-09 2018-02-15 三菱電機株式会社 Dispositif d'ascenseur
CN109562910A (zh) * 2016-08-09 2019-04-02 三菱电机株式会社 电梯装置
CN109562910B (zh) * 2016-08-09 2021-03-09 三菱电机株式会社 电梯装置

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EP1741659B1 (fr) 2018-06-06
CN1784352A (zh) 2006-06-07
EP1741659A4 (fr) 2009-12-23
CN100439226C (zh) 2008-12-03
JPWO2005105651A1 (ja) 2007-12-13
EP1741659A1 (fr) 2007-01-10
JP4292203B2 (ja) 2009-07-08

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