WO2015125264A1 - Derailment detection device for elevator - Google Patents

Derailment detection device for elevator Download PDF

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Publication number
WO2015125264A1
WO2015125264A1 PCT/JP2014/054110 JP2014054110W WO2015125264A1 WO 2015125264 A1 WO2015125264 A1 WO 2015125264A1 JP 2014054110 W JP2014054110 W JP 2014054110W WO 2015125264 A1 WO2015125264 A1 WO 2015125264A1
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WO
WIPO (PCT)
Prior art keywords
hoistway
counterweight
detector
hoistway wall
elevator
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PCT/JP2014/054110
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French (fr)
Japanese (ja)
Inventor
貴士 徳野
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株式会社日立製作所
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Priority to PCT/JP2014/054110 priority Critical patent/WO2015125264A1/en
Publication of WO2015125264A1 publication Critical patent/WO2015125264A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/02—Guideways; Guides
    • B66B7/028—Guideways; Guides with earthquake protection devices
    • 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
    • B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
    • B66B5/022—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system where the abnormal operating condition is caused by a natural event, e.g. earthquake

Definitions

  • the present invention relates to a derailing detection device that detects an unrailing of an elevator that may occur when an earthquake occurs.
  • the elevator car In a general elevator, the elevator car is lifted and lowered in a hoistway of a building by driving a car and a counterweight with a hoisting machine. At this time, a pair of guide rails for guiding the carriage and the counterweight along the vertical direction are provided on the hoistway wall in the hoistway so that the elevator and the counterweight can be smoothly moved up and down. is set up.
  • the counterweight is guided along each guide rail by the guide portions installed at the upper and lower ends of the counterweight fitting with each guide rail.
  • the guide rail may bend, and the counterweight and the guide part of the car may come off the guide rail. If the elevator car and the counterweight are moved up and down as usual in the state of the rail release, the elevator car and the counterweight will shake greatly, and the elevator car and the counterweight will collide with each other, or the counterweight will collide with the equipment in the hoistway. May cause further secondary damage.
  • Patent Document 1 discloses a derailing detection device that detects an unrailing of an elevator using a detection line.
  • the detection lines arranged in parallel with the guide rails for guiding the lifting object are arranged from the lower end to the upper end of the hoistway, and the contactors are separated from the detection lines. Is installed on the lifting object, and when the lifting object is removed from the rail, the contact and the detection line are in contact with each other to detect the removal of the rail.
  • Patent Document 2 the guide rail and the guide part of the lifting object, a bracket installed so as to cover a part of the lifting object when the lifting object derails in at least a partial region of the entire length of the hoistway;
  • a derailing detection device having a detecting unit for detecting the derailing state of an elevator.
  • the derailing detection bracket installed on the bracket of the guide rail and the detecting unit installed on the counterweight come into contact with each other at the time of derailing, and torque acting on the hoisting machine Detecting the fluctuation of the light with a hoisting machine, a detection unit provided with a light emitting unit and a light receiving unit installed on a counterweight, and a bracket installed on a guide rail bracket to block an optical signal from the detection unit Proposes a method of detecting the derailment. Further, in the present rail removal detection device, it is not necessary to install a rail removal detection bracket over the entire length of the hoistway, and the detection can be performed with a minimum device.
  • the method of detecting the contact between the derailing detection bracket and the detection unit by the torque fluctuation of the hoisting machine assumes that the derailing detection bracket and the detection unit are in contact with each other. It is expected that a very large load will be applied.
  • the method of detecting the derailment by blocking the light signal from the detection unit having the light emitting unit and the light receiving unit by the light shielding bracket from the detection unit arranged on the counterweight that moves up and down to the control panel Since it is necessary to wire the signal line, it is difficult to install the signal line to the counterweight that moves up and down in terms of the layout design of the entire elevator.
  • An object of the present invention is to provide an elevator derailment detection device capable of detecting derailment using a detector installed on a hoistway wall and a light-shielding bracket installed on a counterweight that moves up and down. It is in.
  • the present invention provides a pair of guide rails arranged along a vertical direction on a hoistway wall in a hoistway of a building, and a pair of guide rails guided by the pair of guide rails.
  • An elevator derailment detecting device having a hoisting machine that is driven to move up and down in opposite directions, on a hoistway wall at a specific position facing a moving area of the counterweight among hoistway walls in the hoistway
  • a detector comprising: a light emitting unit that is arranged to emit an optical signal in a direction intersecting with the lifting and lowering direction of the counterweight; and a light receiving unit that receives the optical signal from the light emitting unit through a space portion; A space between the light emitting unit and the light receiving unit, which is disposed on the opposite surface side of the weight facing the detector and when the counterweight is opposed to the detector in the normal state in the hoistway.
  • a light-shielding bracket that is positioned within the unit, and a determination unit that determines whether or not a rail is removed based on the detection output of the detector, wherein the determination unit is configured to identify the counterweight in the hoistway. If the light signal from the light-emitting unit is not blocked by the light-shielding bracket and the light-receiving unit receives the light signal on the condition that it exists in the moving region corresponding to the hoistway wall of the position, It is characterized by determining that the occurrence has occurred.
  • the rail removal can be detected by using the detector installed on the hoistway wall and the light-shielding bracket installed on the counterweight that moves up and down.
  • FIG. 1 is a configuration diagram of a rail removal detection device illustrating a first embodiment of the present invention.
  • FIG. It is a block diagram which shows the derailing detection apparatus at the time of derailing in Example 1 of this invention.
  • FIG. 1 is a perspective view of an elevator according to Embodiment 1 of the present invention.
  • a pair of guide rails 5 are arranged along a vertical direction as guide rails for a car, and a pair of guide rails for a counterweight are used as a pair of guide rails.
  • the guide rails 5 are arranged along the vertical direction.
  • the car 2 is guided by a pair of guide rails 5 and moved up and down in the hoistway 1, and the car 2 and the main rope 4 are connected to each other.
  • a counterweight 3 for moving up and down the moving area is arranged.
  • a detector 8 is disposed in the hoistway 1 in the middle of the moving area of the counterweight 3.
  • a machine room 20 is installed above the hoistway 1, and a hoisting machine 21, a main sheave 22, and a control panel 23 are arranged in the machine room 20.
  • the main rope 4 is wound around the main sheave 22.
  • the hoisting machine 21 lifts and lowers the counterweight 2 and the counterweight 3 through the main rope 4 in the opposite directions based on a control signal from the control panel 23.
  • the control panel 23 transmits a control signal to the hoisting machine 21 to control the driving of the hoisting machine 21 and to control the start / stop of operation of the elevator, and further lift and lower the weight 3 against the car 2. Control movement.
  • FIG. 2 is a configuration diagram of the derailing detection device showing the first embodiment of the present invention.
  • the detector 8 is arranged on the hoistway wall 6 at a specific position facing the moving area of the counterweight 3 among the hoistway walls 6 of the hoistway 1.
  • the detector 8 includes a light emitting unit 8a that emits an optical signal in a direction (horizontal direction) intersecting with the lifting / lowering direction of the counterweight 3, and a light receiving unit 8b that receives the optical signal from the light emitting unit 8a through the space. It is prepared for.
  • guide portions 9 that are formed in a substantially U shape and are movably coupled to the respective guide rails 5 are fixed to both ends of the counterweights that are opposed to the respective guide rails 5.
  • a light shielding bracket 7 is disposed opposite to the hoistway wall 6 at a central portion between the guide rails 5 and on the side facing the detector 8. .
  • the light shielding bracket 7 is provided between the light emitting unit 8a and the light receiving unit 8b when the counterweight 3 of the counterweight 3 is present in a moving region corresponding to the hoistway wall 6 at a specific position in the hoistway 1.
  • the space part is arranged in a part existing as a part of the moving region.
  • the shading bracket 7 is configured such that each guide portion 9 is movably coupled to each guide rail 5 and no lifting rail is generated in the elevator, the counterweight 3 is a hoistway wall at a specific position in the hoistway 1.
  • the positioning is performed so as to pass through the space between the light emitting unit 8a and the light receiving unit 8b. That is, the light-shielding bracket 7 is disposed on the counter surface side of the counterweight 3 that faces the detector 8, and when the counterweight 3 faces the detector 8 in the normal state in the hoistway 1, the light emitting unit. It is positioned in the space between 8a and the light receiving part 8b.
  • the detection output of the detector 8 is sent to the control panel 23 via a signal line (not shown) wired to the hoistway wall 6. At this time, by fixing the signal line to the hoistway wall 6 or the like, it is not necessary to install the signal line on the counterweight 3 that moves up and down, and it is possible to easily send a signal to the control panel.
  • the control panel 23 is provided with a determiner (not shown) that determines whether or not there is a rail release based on the detection output of the detector 8.
  • the determination device is configured such that the light signal from the light emitting unit 8a is shielded by the light shielding bracket 7 on the condition that the counterweight 3 exists in a moving region corresponding to the hoistway wall 6 at a specific position in the hoistway 1.
  • the light receiving unit 8b does not receive the optical signal, it is determined that there is no rail removal (normal).
  • the optical signal from the light emitting unit 8a is not blocked by the light blocking bracket 7, and the light receiving unit 8b receives the optical signal. In such a case, it is determined that there is a rail release (abnormal).
  • FIG. 3 is a configuration diagram showing a derailing detection device at the time of derailing in the first embodiment of the present invention.
  • the coupling between each guide portion 9 and each guide rail 5 is released, and each guide portion 9 is detached from each guide rail 5.
  • the blocking bracket 7 remains in the space between the light emitting part 8a and the light receiving part 8b.
  • the light receiving unit 8b always receives the optical signal from the light emitting unit 8a without passing through.
  • the control panel stops the operation of the elevator by stopping the driving of the hoisting machine 21 when the determiner determines that the occurrence of the rail release has occurred.
  • the counterweight 3 when the derailment occurs, the counterweight 3 is installed on the hoistway wall 6 when it exists in the moving region corresponding to the hoistway wall 6 at a specific position in the hoistway 1.
  • the rail removal can be detected by using the detector 8 and the light-shielding bracket 7 installed on the counterweight 3 that moves up and down.
  • the detector 8 can be easily installed on the hoistway wall 6, and the signal line from the detector 8 can be easily arranged in the hoistway 1. It is possible to provide a feasible derailing detection device that does not affect the elevator arrangement plan. Furthermore, even if the number of detectors 8 and the light-shielding brackets 7 is minimized, when a rail release occurs, the rail release can be detected at a specific position where the detector 8 is installed.
  • Example 2 has two installation positions of the detector 8, and the other configuration is the same as that of Example 1.
  • FIG. 4 is a perspective view of the elevator according to the second embodiment of the present invention.
  • the two detectors 8 are arranged separately on the hoistway wall 6 in the hoistway 1.
  • the counterweight 3 corresponds to the uppermost hoistway wall corresponding to the moving region located at the uppermost part in the hoistway 1
  • the counterweight 3 is the hoistway 1.
  • the lowermost hoistway wall corresponding to the moving region located in the lowermost part is set, and the detectors 8 are arranged on the uppermost hoistway wall and the lowermost hoistway wall, respectively.
  • one of the detectors 8 is opposed to the light-shielding bracket 7 when the counterweight 3 of the hoistway wall 6 in the hoistway 1 is positioned at the uppermost part of the hoistway 1 in a normal state.
  • the light shielding bracket 7 is inserted into the space between the light emitting part 8a and the light receiving part 8b, and is arranged at a position (top hoistway wall) that blocks the optical signal from the light emitting part 8a. Yes.
  • the other detector 8 is a position opposite to the light-shielding bracket 7 when the counterweight 3 of the hoistway wall 6 in the hoistway 1 is positioned in the lowermost part of the hoistway 1 in a normal state.
  • the light shielding bracket 7 is inserted into the space between the light emitting part 8a and the light receiving part 8b, and is disposed at a position (lower hoistway wall) that blocks the optical signal from the light emitting part 8a. For this reason, when the counterweight 3 is located at the uppermost part or the lowermost part of the hoistway 1, the determiner can determine the presence or absence of the occurrence of rail removal based on the detection output of each detector 8. .
  • the car 2 and the counterweight 3 may be moved up and down at low speeds in directions that do not pass each other.
  • the counterweight 3 is arranged on the uppermost side of the hoistway 1 with respect to the car 2 before the test operation, the counterweight 3 is moved to the uppermost portion of the hoistway 1 during the test operation.
  • the presence or absence of rail removal is determined by the determiner.
  • the counterweight 3 when the counterweight 3 is arranged on the lowermost side of the hoistway 1 with respect to the car 2 before the test operation, the counterweight 3 is moved to the lowermost portion of the hoistway 1 during the test operation.
  • the presence or absence of the occurrence of rail removal is determined by the determiner.
  • the counterweight 3 when the counterweight 3 is positioned at the uppermost or lowermost part of the hoistway 1, it is possible to detect the occurrence of rail release even if the number of detectors 8 and light-shielding brackets 7 is minimal. Can do. For this reason, during the test operation, when the counterweight 3 is detected when the counterweight 3 is located at the uppermost part or the lowermost part of the hoistway 1, the elevator is stopped to stop Passing between the car 2 and the counterweight 3 can be avoided.
  • two detectors 8 are arranged at positions different from those in the second embodiment, and other configurations are the same as those in the second embodiment.
  • FIG. 5 is a perspective view of an elevator according to Embodiment 3 of the present invention.
  • the two detectors 8 are arranged separately on the hoistway wall 6 in the hoistway 1.
  • a first hoistway wall corresponding to the moving area immediately before the counterweight 3 passes when the counterweight 3 descends in the moving area;
  • the second hoistway wall corresponding to the moving area immediately before the passing car 2 passes is set and detected on the first hoistway wall and the second hoistway wall, respectively.
  • a vessel 8 is arranged.
  • one of the detectors 8 includes a counterweight 3 of the hoistway wall 6 in the hoistway 1 that descends from the uppermost side of the hoistway 1, and a car 2 that is the uppermost side of the hoistway 1.
  • the light shielding bracket 7 is inserted into the space between the light emitting portion 8a and the light receiving portion 8b at a position opposite to the light shielding bracket 7 just before they rise from the lower side and pass each other. Is arranged at a position (first hoistway wall) where the optical signal is blocked (shielded).
  • the counterweight 3 of the hoistway wall 6 in the hoistway 1 is raised from the lowermost side of the hoistway 1, and the car 2 is lowered from the uppermost side of the hoistway 1.
  • the light-shielding bracket 7 is inserted into the space between the light-emitting unit 8a and the light-receiving unit 8b at a position opposite to the light-shielding bracket 7 and blocks the optical signal from the light-emitting unit 8a. It arrange
  • the determination device detects each detector 8. Based on the output, it is possible to determine whether or not a rail release has occurred. Further, just before the counterweight 3 is lifted from the lowermost side of the hoistway 1 and the car 2 is lowered from the uppermost side of the hoistway 1 and the two pass each other, the judging device detects each detector 8. Based on the output, it is possible to determine whether or not a rail release has occurred. At this time, when the occurrence of the rail release is detected, the operation of the elevator is stopped. For this reason, it is possible to avoid passing between the car 2 and the counterweight 3 in a state where the rail is removed. In addition, after the occurrence of the earthquake, the test operation can be performed in the same manner as in the second embodiment.
  • the counterweight 3 is lowered to the car 2 side, or the counterweight 3 is raised to the car 2 side, and the two pass each other. Immediately before, it is possible to detect the presence or absence of a rail release. If the occurrence of derailing is detected immediately before the counterweight 3 and the car 2 pass each other, the operation of the elevator is stopped so that the difference between the car 2 and the counterweight 3 in the derailed state can be obtained. Can be avoided.
  • Example 4 is one in which the number of light-shielding brackets 7 and detectors 8 is increased, and the other configurations are the same as those in Example 2 or Example 3.
  • FIG. 6 is a configuration diagram of the derailing detection device showing the fourth embodiment of the present invention.
  • two light shielding brackets 7 are arranged opposite to the hoistway wall 6 at both ends in the axial direction of the counterweight 3.
  • Two detectors 8 are arranged on the uppermost part of the hoistway wall 6 so as to face each light shielding bracket 7.
  • Two detectors 8 are arranged at the lowermost part of the hoistway wall 6 so as to face each light shielding bracket 7.
  • the counterweight 3 is lifted and lowered by a plurality of upper hoistway walls corresponding to the moving region where the counterweight 3 is located at the uppermost part in the hoistway 1.
  • a plurality of lowermost hoistway walls corresponding to a moving region located at the lowermost part in the road 1 are set apart from each other along a direction (horizontal direction) intersecting with the lifting / lowering direction of the counterweight 3.
  • Detectors 8 are arranged on the road walls and the lowermost hoistway walls.
  • each of the light shielding brackets 7 disposed on the opposite surface side of the counterweight 3 that faces each detector 8, when the counterweight 3 faces each detector 8 in the normal state in the hoistway 1, The space between the light emitting part 8a and the light receiving part 8b of each detector 8 arranged on each uppermost hoistway wall, or the light emitting part 8a and the light receiving part of each detector 8 arranged on each lowermost hoistway wall. It is positioned in the space part between the part 8b.
  • Each detector 8 located at the top of the hoistway wall 6 is connected to each light-shielding bracket 7 when the counterweight 3 is located at the top of the hoistway 1 among the hoistway walls 6 in the hoistway 1.
  • each light-shielding bracket 7 is inserted into a space between each light-emitting portion 8a and each light-receiving portion 8b, and is a position where the light signal from each light-emitting portion 8a is blocked (top hoistway) Wall).
  • the detector 8 located at the lowermost part of the hoistway wall 6 is relative to the light shielding bracket 7 when the counterweight 3 is located at the lowermost part of the hoistway 1 in the hoistway wall 6 in the hoistway 1.
  • Each light shielding bracket 7 is inserted into a space between each light emitting portion 8a and each light receiving portion 8b, and is a position where the light signal from each light emitting portion 8a is blocked (lowermost hoistway wall) ). For this reason, when the counterweight 3 is located at the uppermost or lowermost part of the hoistway 1, the determiner demounts based on the detection output of each detector 8 located at the uppermost or lowermost part of the hoistway 1. Whether or not rails are generated can be determined.
  • two detectors are located at the position immediately before the two pass each other, and the position immediately before the counterweight 3 is raised to the car 2 side and the two pass each other. 8 can also be arranged.
  • the hoistway wall 6 at a specific position in the hoistway 1 a plurality of first hoistways corresponding to the moving area just before passing the rising car 2 when the counterweight 3 descends in the moving area.
  • a plurality of second hoistway walls corresponding to the movement area just before passing the car 2 that descends intersects the lifting direction of the counterweight 3 (
  • the detectors 8 are arranged on the first hoistway walls and the second hoistway walls, respectively.
  • each of the light shielding brackets 7 disposed on the opposite surface side of the counterweight 3 that faces the detector 8 is connected to the counterweight 3 when the counterweight 3 is opposed to each detector 8 in the normal state in the hoistway 1.
  • a test operation can be performed after an earthquake occurs.
  • the same effects as those of the second and third embodiments can be obtained, and the presence / absence of derailing can be detected using the two detectors 8 and the two light shielding brackets. Therefore, it is possible to detect the occurrence of derailment with higher accuracy than in the second and third embodiments.
  • each hoistway wall can be set as hoistway walls at specific positions in the hoistway, and a detector can be arranged on each hoistway wall.
  • the balance weight 3 corresponds to the uppermost hoistway wall corresponding to the moving region located at the uppermost part in the hoistway 1 and the lowermost hoistway wall corresponding to the moving region located corresponding to the lowermost part in the hoistway 1.
  • the first hoistway wall corresponding to the moving area just before the rising car 2 and the counterweight 3 moves down in the moving area.
  • a second hoistway wall corresponding to the moving area immediately before passing the car 2 is set, and a detector 8 is arranged on each hoistway wall.
  • each embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to one having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. In addition, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
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Abstract

The present invention is a derailment detection device for an elevator, which has a counterweight (3) and a hoisting machine (22) for raising and lowering a car (2), said derailment detection device comprising: a detector (8) that is disposed on a hoistway wall (6) at a specific position in a hoistway (1) and provided with a light-emitting portion (8a) and a light-receiving portion (8b); a light blocking bracket (7) that is disposed at the portion of the counterweight (3) facing the detector (8) when the counterweight (3) exists in a position corresponding to the hoistway wall (6) at the specific position in the hoistway (1); and a determiner (23) that determines the presence or absence of occurrence of derailment on the basis of a detection output of the detector (8). The determiner (23) is designed to determine that the derailment occurs if an optical signal from the light-emitting portion (8a) is received by the light-receiving portion (8b) without being blocked by the light blocking bracket (7) on condition that the counterweight (3) exists in a movement region corresponding to the hoistway wall (6) at the specific position in the hoistway (1).

Description

エレベータの脱レール検出装置Elevator derailing detection device
　本発明は、地震時発生等に発生し得るエレベータの脱レールを検出する脱レール検出装置に関する。 [Technical Field] The present invention relates to a derailing detection device that detects an unrailing of an elevator that may occur when an earthquake occurs.
　一般的なエレベータでは、建屋の昇降路内において、乗りかごとつり合いおもりを巻上機で駆動して、昇降動作を行っている。このとき、乗りかごとつり合いおもりの昇降動作を円滑に行わせるために、昇降路内の昇降路壁には、乗りかごとつり合いおもりをそれぞれ案内するためのガイドレールが一対ずつ鉛直方向に沿って設置されている。つり合いおもりは、つり合いおもりの上下端に設置されたガイド部が、各ガイドレールに嵌り合うことで、各ガイドレールに沿って案内される。 In a general elevator, the elevator car is lifted and lowered in a hoistway of a building by driving a car and a counterweight with a hoisting machine. At this time, a pair of guide rails for guiding the carriage and the counterweight along the vertical direction are provided on the hoistway wall in the hoistway so that the elevator and the counterweight can be smoothly moved up and down. is set up. The counterweight is guided along each guide rail by the guide portions installed at the upper and lower ends of the counterweight fitting with each guide rail.
　地震発生時などに、ガイドレールが撓み、つり合いおもりや乗りかごのガイド部が、ガイドレールから外れる脱レールを生じることがある。脱レールの状態で、通常通り、乗りかごとつり合いおもりの昇降動作を行うと、乗りかごやつり合いおもりが大きく揺れ、乗りかごとつり合いおもりとが衝突したり、つり合いおもりとが昇降路内機器と衝突したりすることが危惧され、更なる二次被害が生じる可能性がある。 In the event of an earthquake, etc., the guide rail may bend, and the counterweight and the guide part of the car may come off the guide rail. If the elevator car and the counterweight are moved up and down as usual in the state of the rail release, the elevator car and the counterweight will shake greatly, and the elevator car and the counterweight will collide with each other, or the counterweight will collide with the equipment in the hoistway. May cause further secondary damage.
　特許文献１には、検出線を用いたエレベータの脱レールを検知する脱レール検知装置が開示されている。特許文献１に記載されて脱レール検知装置では、昇降物を案内するガイドレールに並行配置された検出線を昇降路の下端から上端までに配置し、その検出線と空隙を隔てるように接触子を昇降物に設置し、昇降物が脱レールした場合、接触子と検出線が接触することで、脱レールを検出している。 Patent Document 1 discloses a derailing detection device that detects an unrailing of an elevator using a detection line. In the rail-removal detecting device described in Patent Document 1, the detection lines arranged in parallel with the guide rails for guiding the lifting object are arranged from the lower end to the upper end of the hoistway, and the contactors are separated from the detection lines. Is installed on the lifting object, and when the lifting object is removed from the rail, the contact and the detection line are in contact with each other to detect the removal of the rail.
　特許文献２には、ガイドレールと昇降物のガイド部に、昇降路の全長の少なくとも一部領域に、昇降物が脱レールしたときに昇降物の一部を覆うように設置されるブラケットと、昇降物の脱レール状態を検知する検出部を持つ、脱レール検出装置が開示されている。 In Patent Document 2, the guide rail and the guide part of the lifting object, a bracket installed so as to cover a part of the lifting object when the lifting object derails in at least a partial region of the entire length of the hoistway; There has been disclosed a derailing detection device having a detecting unit for detecting the derailing state of an elevator.
特開２０１０－１８４２３号公報JP 2010-18423 A 特開２００９－５１６０４号公報JP 2009-51604 A
　上記特許文献１記載の脱レール検出装置では、昇降路の最上部から最下部へ検出線を張る必要があり、またその据付には非常に高い精度が求められ、据付困難である。また、脱レールが発生していない状態でも、風圧や地震による建屋の揺れや、エレベータの走行時の風圧、つり合いおもりや乗りかごの振動により生じる検出線の揺れで、検出線と接触子が接触してしまい、脱レールを誤検出することが考えられる。 In the derailing detection device described in Patent Document 1, it is necessary to extend a detection line from the uppermost part to the lowermost part of the hoistway, and the installation requires very high accuracy and is difficult to install. Even when there is no rail release, the detection line and the contactor contact each other due to the fluctuation of the detection line caused by the vibration of the building due to wind pressure or earthquake, the wind pressure when the elevator is running, the vibration of the counterweight or the car. Therefore, it is conceivable that the rail removal is erroneously detected.
　上記特許文献２記載の脱レール検出装置では、ガイドレールのブラケットに設置された脱レール検知用ブラケットと、つり合いおもりに設置された検出部とが脱レール時に接触し、巻上機に作用するトルクの変動を、巻上機で検知する方法と、つり合いおもりに設置された発光部と受光部を具備した検出部と、ガイドレールのブラケットに設置されて、検出部からの光信号を遮光するブラケットによって、脱レールを検知する方法を提案している。また、本脱レール検出装置では、昇降路の全長に亘って、脱レール検出用ブラケットを設置する必要がなく、最小限の装置にて検出可能である。 In the derailing detection device described in Patent Document 2, the derailing detection bracket installed on the bracket of the guide rail and the detecting unit installed on the counterweight come into contact with each other at the time of derailing, and torque acting on the hoisting machine Detecting the fluctuation of the light with a hoisting machine, a detection unit provided with a light emitting unit and a light receiving unit installed on a counterweight, and a bracket installed on a guide rail bracket to block an optical signal from the detection unit Proposes a method of detecting the derailment. Further, in the present rail removal detection device, it is not necessary to install a rail removal detection bracket over the entire length of the hoistway, and the detection can be performed with a minimum device.
　しかし、脱レール検知用ブラケットと検出部との接触を巻上機のトルク変動で検知する方法では、脱レール検知用ブラケットと検出部とが接触することを前提にしている為、ブラケットと検出部に非常に大きな負荷がかかることが予想される。また、発光部と受光部を具備した検出部からの光信号を、遮光ブラケットが遮光することによって、脱レールを検知する方法では、昇降動作するつり合いおもりに配置された検出部から、制御盤まで信号線を配線する必要があり、昇降動作するつり合いおもりに信号線を設置することは、エレベータ全体の配置設計上、難しい。 However, the method of detecting the contact between the derailing detection bracket and the detection unit by the torque fluctuation of the hoisting machine assumes that the derailing detection bracket and the detection unit are in contact with each other. It is expected that a very large load will be applied. In addition, in the method of detecting the derailment by blocking the light signal from the detection unit having the light emitting unit and the light receiving unit by the light shielding bracket, from the detection unit arranged on the counterweight that moves up and down to the control panel Since it is necessary to wire the signal line, it is difficult to install the signal line to the counterweight that moves up and down in terms of the layout design of the entire elevator.
　本発明の目的は、昇降路壁に設置された検出器と、昇降動作するつり合いおもりに設置された遮光ブラケットを用いて、脱レールを検出することができるエレベータの脱レール検出装置を提供することにある。 An object of the present invention is to provide an elevator derailment detection device capable of detecting derailment using a detector installed on a hoistway wall and a light-shielding bracket installed on a counterweight that moves up and down. It is in.
　本発明は、前記目的を達成するために、建屋の昇降路内の昇降路壁に鉛直方向に沿って配置された一対のガイドレールと、前記一対のガイドレールに案内されて、前記昇降路内の移動領域を昇降移動するつり合いおもりと、前記昇降路内に昇降自在に配置されて前記つり合いおもりと主索を介して接続される乗りかごと、前記つり合いおもりと前記乗りかごを前記主索を介して互いに逆方向に昇降駆動する巻上機とを有するエレベータの脱レール検出装置であって、前記昇降路内の昇降路壁のうち前記つり合いおもりの移動領域を臨む特定位置の昇降路壁に配置されて、光信号を前記つり合いおもりの昇降方向と交差する方向に発光する発光部及び前記発光部からの光信号を空間部を介して受光する受光部を具備する検出器と、前記つり合いおもりのうち前記検出器と対向する対向面側に配置されて、前記つり合いおもりが前記昇降路内で前記検出器と正常状態で対向する際に、前記発光部と前記受光部との間の空間部内に位置決めされる遮光ブラケットと、前記検出器の検出出力を基に脱レールの発生の有無を判定する判定器と、を有し、前記判定器は、前記つり合いおもりが前記昇降路内の特定位置の昇降路壁に対応した移動領域内に存在することを条件に、前記発光部からの光信号が前記遮光ブラケットにより遮光されず、前記受光部が前記光信号を受光した場合、脱レールの発生が有りと判定することを特徴とする。 In order to achieve the above object, the present invention provides a pair of guide rails arranged along a vertical direction on a hoistway wall in a hoistway of a building, and a pair of guide rails guided by the pair of guide rails. A counterweight that moves up and down in the moving area, a car that is disposed in the hoistway so as to be raised and lowered, and is connected to the counterweight via the main rope, and the counterweight and the car are connected to the main rope. An elevator derailment detecting device having a hoisting machine that is driven to move up and down in opposite directions, on a hoistway wall at a specific position facing a moving area of the counterweight among hoistway walls in the hoistway A detector comprising: a light emitting unit that is arranged to emit an optical signal in a direction intersecting with the lifting and lowering direction of the counterweight; and a light receiving unit that receives the optical signal from the light emitting unit through a space portion; A space between the light emitting unit and the light receiving unit, which is disposed on the opposite surface side of the weight facing the detector and when the counterweight is opposed to the detector in the normal state in the hoistway. A light-shielding bracket that is positioned within the unit, and a determination unit that determines whether or not a rail is removed based on the detection output of the detector, wherein the determination unit is configured to identify the counterweight in the hoistway. If the light signal from the light-emitting unit is not blocked by the light-shielding bracket and the light-receiving unit receives the light signal on the condition that it exists in the moving region corresponding to the hoistway wall of the position, It is characterized by determining that the occurrence has occurred.
　本発明によれば、昇降路壁に設置された検出器と、昇降動作するつり合いおもりに設置された遮光ブラケットを用いて、脱レールを検出することができる。 According to the present invention, the rail removal can be detected by using the detector installed on the hoistway wall and the light-shielding bracket installed on the counterweight that moves up and down.
本発明の実施例１におけるエレベータの斜視図である。It is a perspective view of the elevator in Example 1 of this invention. 本発明の実施例１を示す脱レール検出装置の構成図である。1 is a configuration diagram of a rail removal detection device illustrating a first embodiment of the present invention. FIG. 本発明の実施例１における、脱レール時の脱レール検出装置を示す構成図である。It is a block diagram which shows the derailing detection apparatus at the time of derailing in Example 1 of this invention. 本発明の実施例２におけるエレベータの斜視図である。It is a perspective view of the elevator in Example 2 of this invention. 本発明の実施例３におけるエレベータの斜視図である。It is a perspective view of the elevator in Example 3 of this invention. 本発明の実施例４を示す脱レール検出装置の構成図である。It is a block diagram of the derailment detection apparatus which shows Example 4 of this invention.
　以下に、本発明の実施例を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　図１は、本発明の実施例１におけるエレベータの斜視図である。図１において、エレベータ用建屋の昇降路１内には、乗りかご用のガイドレールとして、一対のガイドレール５が鉛直方向に沿って配置されていると共に、つり合おもり用のガイドレールとして、一対のガイドレール５が鉛直方向に沿って配置されている。また、昇降路１内には、一対のガイドレール５に案内されて、昇降路１内を昇降移動する乗りかご２と、乗りかご２と主索４を介して接続されて、昇降路１内の移動領域を昇降移動するつり合いおもり３が配置されている。さらに、昇降路１内には、つり合いおもり３の移動領域の中ほどに、検出器８が配置されている。 FIG. 1 is a perspective view of an elevator according to Embodiment 1 of the present invention. In FIG. 1, in a hoistway 1 of an elevator building, a pair of guide rails 5 are arranged along a vertical direction as guide rails for a car, and a pair of guide rails for a counterweight are used as a pair of guide rails. The guide rails 5 are arranged along the vertical direction. Further, in the hoistway 1, the car 2 is guided by a pair of guide rails 5 and moved up and down in the hoistway 1, and the car 2 and the main rope 4 are connected to each other. A counterweight 3 for moving up and down the moving area is arranged. Further, a detector 8 is disposed in the hoistway 1 in the middle of the moving area of the counterweight 3.
　一方、昇降路１の上方には、機械室２０が設置されており、機械室２０内には、巻上機２１と、メインシーブ２２と、制御盤２３が配置されている。メインシーブ２２には、主索４が巻き掛けられている。巻上機２１は、制御盤２３からの制御信号を基に、乗りかご２とつり合いおもり３を主索４を介して互いに逆方向に昇降駆動する。制御盤２３は、巻上機２１に制御信号を送信して、巻上機２１の駆動を制御する共に、エレベータの運転開始・運転停止を制御し、さらに、乗りかご２とつり合いおもり３の昇降移動を制御する。 On the other hand, a machine room 20 is installed above the hoistway 1, and a hoisting machine 21, a main sheave 22, and a control panel 23 are arranged in the machine room 20. The main rope 4 is wound around the main sheave 22. The hoisting machine 21 lifts and lowers the counterweight 2 and the counterweight 3 through the main rope 4 in the opposite directions based on a control signal from the control panel 23. The control panel 23 transmits a control signal to the hoisting machine 21 to control the driving of the hoisting machine 21 and to control the start / stop of operation of the elevator, and further lift and lower the weight 3 against the car 2. Control movement.
　図２は、本発明の実施例１を示す脱レール検出装置の構成図である。図２において、昇降路１の昇降路壁６のうち、つり合いおもり３の移動領域を臨む特定位置の昇降路壁６には、検出器８が配置されている。検出器８は、光信号をつり合いおもり３の昇降方向と交差する方向（水平方向）に発光する発光部８ａと、発光部８ａからの光信号を空間部を介して受光する受光部８ｂとを備えて構成される。 FIG. 2 is a configuration diagram of the derailing detection device showing the first embodiment of the present invention. In FIG. 2, the detector 8 is arranged on the hoistway wall 6 at a specific position facing the moving area of the counterweight 3 among the hoistway walls 6 of the hoistway 1. The detector 8 includes a light emitting unit 8a that emits an optical signal in a direction (horizontal direction) intersecting with the lifting / lowering direction of the counterweight 3, and a light receiving unit 8b that receives the optical signal from the light emitting unit 8a through the space. It is prepared for.
　つり合いおもり３のうち、各ガイドレール５と相対向する両端には、略Ｕ字形状に形成されて、各ガイドレール５に移動可能に結合するガイド部９が固定されている。また、つり合いおもり３のうち、各ガイドレール５間の中心となる部位であって、検出器８との対向面側には、遮光ブラケット７が昇降路壁６に相対向して配置されている。この遮光ブラケット７は、つり合いおもり３のうち、つり合いおもり３が昇降路１内の特定位置の昇降路壁６に対応した移動領域内に存在する際に、発光部８ａと受光部８ｂとの間の空間部を移動領域の一部として存在する部位に配置されている。 In the counterweight 3, guide portions 9 that are formed in a substantially U shape and are movably coupled to the respective guide rails 5 are fixed to both ends of the counterweights that are opposed to the respective guide rails 5. Further, in the counterweight 3, a light shielding bracket 7 is disposed opposite to the hoistway wall 6 at a central portion between the guide rails 5 and on the side facing the detector 8. . The light shielding bracket 7 is provided between the light emitting unit 8a and the light receiving unit 8b when the counterweight 3 of the counterweight 3 is present in a moving region corresponding to the hoistway wall 6 at a specific position in the hoistway 1. The space part is arranged in a part existing as a part of the moving region.
　即ち、遮光ブラケット７は、各ガイド部９が、各ガイドレール５に移動可能に結合し、エレベータに脱レールが発生していない場合、つり合いおもり３が昇降路１内の特定位置の昇降路壁６に対応した移動領域内を通過する際に、発光部８ａと受光部８ｂとの間の空間部内を通過するように、位置決めされている。つまり、遮光ブラケット７は、つり合いおもり３のうち検出器８と対向する対向面側に配置されて、つり合いおもり３が、昇降路１内で検出器８と正常状態で対向する際に、発光部８ａと受光部８ｂとの間の空間部内に位置決めされる。 That is, the shading bracket 7 is configured such that each guide portion 9 is movably coupled to each guide rail 5 and no lifting rail is generated in the elevator, the counterweight 3 is a hoistway wall at a specific position in the hoistway 1. When passing through the moving region corresponding to 6, the positioning is performed so as to pass through the space between the light emitting unit 8a and the light receiving unit 8b. That is, the light-shielding bracket 7 is disposed on the counter surface side of the counterweight 3 that faces the detector 8, and when the counterweight 3 faces the detector 8 in the normal state in the hoistway 1, the light emitting unit. It is positioned in the space between 8a and the light receiving part 8b.
　検出器８の検出出力は、昇降路壁６に配線された信号線（図示せず）を介して制御盤２３に送出される。この際、昇降路壁６などに信号線を固定することで、昇降動作するつり合いおもり３への信号線の設置は不要であり、容易に制御盤まで信号を送ること可能となる。制御盤２３には、検出器８の検出出力を基に脱レールの有無を判定する判定器（図示せず）が配置されている。 The detection output of the detector 8 is sent to the control panel 23 via a signal line (not shown) wired to the hoistway wall 6. At this time, by fixing the signal line to the hoistway wall 6 or the like, it is not necessary to install the signal line on the counterweight 3 that moves up and down, and it is possible to easily send a signal to the control panel. The control panel 23 is provided with a determiner (not shown) that determines whether or not there is a rail release based on the detection output of the detector 8.
　判定器は、つり合いおもり３が、昇降路１内の特定位置の昇降路壁６に対応した移動領域内に存在することを条件に、発光部８ａからの光信号が遮光ブラケット７により遮光され、受光部８ｂが光信号を受光しない場合、脱レールの発生が無い（正常）と判定し、一方、発光部８ａからの光信号が遮光ブラケット７により遮光されず、受光部８ｂが光信号を受光した場合、脱レールの発生が有り（異常）と判定する。 The determination device is configured such that the light signal from the light emitting unit 8a is shielded by the light shielding bracket 7 on the condition that the counterweight 3 exists in a moving region corresponding to the hoistway wall 6 at a specific position in the hoistway 1. When the light receiving unit 8b does not receive the optical signal, it is determined that there is no rail removal (normal). On the other hand, the optical signal from the light emitting unit 8a is not blocked by the light blocking bracket 7, and the light receiving unit 8b receives the optical signal. In such a case, it is determined that there is a rail release (abnormal).
　図３は、本発明の実施例１における、脱レール時の脱レール検出装置を示す構成図である。図３において、脱レール発生時には、各ガイド部９と各ガイドレール５との結合が解除され、各ガイド部９が、各ガイドレール５から外れる。この場合、つり合いおもり３が昇降路１内の特定位置の昇降路壁６に対応した移動領域内を通過しても、遮断ブラケット７が、発光部８ａと受光部８ｂとの間の空間部内を通過することはなく、受光部８ｂは、常時、発光部８ａからの光信号を受光することになる。このため、判定器は、つり合いおもり３が、昇降路１内の特定位置の昇降路壁６に対応した移動領域内に存在することを条件に、受光部８ｂが光信号を受光した場合、脱レールの発生が有りと判定する。この際、制御盤は、判定器が、脱レールの発生が有りと判定した場合、巻上機２１の駆動を停止して、エレベータの運転を停止させる。 FIG. 3 is a configuration diagram showing a derailing detection device at the time of derailing in the first embodiment of the present invention. In FIG. 3, when the rail is removed, the coupling between each guide portion 9 and each guide rail 5 is released, and each guide portion 9 is detached from each guide rail 5. In this case, even if the counterweight 3 passes through the movement region corresponding to the hoistway wall 6 at a specific position in the hoistway 1, the blocking bracket 7 remains in the space between the light emitting part 8a and the light receiving part 8b. The light receiving unit 8b always receives the optical signal from the light emitting unit 8a without passing through. For this reason, when the light receiving unit 8b receives the optical signal on the condition that the counterweight 3 exists in the moving region corresponding to the hoistway wall 6 at a specific position in the hoistway 1, the determiner is removed. It is determined that there is a rail. At this time, the control panel stops the operation of the elevator by stopping the driving of the hoisting machine 21 when the determiner determines that the occurrence of the rail release has occurred.
　本実施例によれば、脱レール発生時に、つり合いおもり３が、昇降路１内の特定位置の昇降路壁６に対応した移動領域内に存在する際には、昇降路壁６に設置された検出器８と、昇降動作するつり合いおもり３に設置された遮光ブラケット７を用いて、脱レールを検出することができる。また、本実施例によれば、検出器８を昇降路壁６に容易に設置することができると共に、検出器８からの信号線を容易に昇降路１内に配置することができ、結果として、エレベータの配置計画に影響を与えない、実現可能な脱レール検出装置を提供することができる。さらに、検出器８と遮光ブラケット７の設置数を最小限にしても、脱レール発生時には、検出器８が設置された特定位置で脱レールを検出することができる。 According to the present embodiment, when the derailment occurs, the counterweight 3 is installed on the hoistway wall 6 when it exists in the moving region corresponding to the hoistway wall 6 at a specific position in the hoistway 1. The rail removal can be detected by using the detector 8 and the light-shielding bracket 7 installed on the counterweight 3 that moves up and down. Further, according to the present embodiment, the detector 8 can be easily installed on the hoistway wall 6, and the signal line from the detector 8 can be easily arranged in the hoistway 1. It is possible to provide a feasible derailing detection device that does not affect the elevator arrangement plan. Furthermore, even if the number of detectors 8 and the light-shielding brackets 7 is minimized, when a rail release occurs, the rail release can be detected at a specific position where the detector 8 is installed.
　実施例２は、検出器８の設置位置を２箇所としたものであり、他の構成は実施例１と同様である。 Example 2 has two installation positions of the detector 8, and the other configuration is the same as that of Example 1.
　図４は、本発明の実施例２におけるエレベータの斜視図である。図４において、２台の検出器８は、昇降路１内の昇降路壁６に上下に分かれて配置されている。この際、昇降路１内の特定位置の昇降路壁６として、つり合いおもり３が昇降路１内の最上部に位置する移動領域に対応する最上部昇降路壁と、つり合いおもり３が昇降路１内の最下部に位置する移動領域に対応する最下部昇降路壁が設定され、最上部昇降路壁と最下部昇降路壁にそれぞれ検出器８が配置されている。 FIG. 4 is a perspective view of the elevator according to the second embodiment of the present invention. In FIG. 4, the two detectors 8 are arranged separately on the hoistway wall 6 in the hoistway 1. At this time, as the hoistway wall 6 at a specific position in the hoistway 1, the counterweight 3 corresponds to the uppermost hoistway wall corresponding to the moving region located at the uppermost part in the hoistway 1, and the counterweight 3 is the hoistway 1. The lowermost hoistway wall corresponding to the moving region located in the lowermost part is set, and the detectors 8 are arranged on the uppermost hoistway wall and the lowermost hoistway wall, respectively.
　具体的には、一方の検出器８は、昇降路１内の昇降路壁６のうち、つり合いおもり３が、昇降路１の最上部に正常状態で位置する際に、遮光ブラケット７と相対向する位置であって、遮光ブラケット７が、発光部８ａと受光部８ｂとの間の空間部内に挿入され、発光部８ａからの光信号を遮断する位置（最上部昇降路壁）に配置されている。 Specifically, one of the detectors 8 is opposed to the light-shielding bracket 7 when the counterweight 3 of the hoistway wall 6 in the hoistway 1 is positioned at the uppermost part of the hoistway 1 in a normal state. The light shielding bracket 7 is inserted into the space between the light emitting part 8a and the light receiving part 8b, and is arranged at a position (top hoistway wall) that blocks the optical signal from the light emitting part 8a. Yes.
　他方の検出器８は、昇降路１内の昇降路壁６のうち、つり合いおもり３が、昇降路１の最下部に正常状態で位置する際に、遮光ブラケット７と相対向する位置であって、遮光ブラケット７が、発光部８ａと受光部８ｂとの間の空間部内に挿入され、発光部８ａからの光信号を遮断する位置（最下部昇降路壁）に配置されている。このため、つり合いおもり３が、昇降路１の最上部または最下部に位置する際に、判定器は、各検出器８の検出出力を基に、脱レールの発生の有無を判定することができる。 The other detector 8 is a position opposite to the light-shielding bracket 7 when the counterweight 3 of the hoistway wall 6 in the hoistway 1 is positioned in the lowermost part of the hoistway 1 in a normal state. The light shielding bracket 7 is inserted into the space between the light emitting part 8a and the light receiving part 8b, and is disposed at a position (lower hoistway wall) that blocks the optical signal from the light emitting part 8a. For this reason, when the counterweight 3 is located at the uppermost part or the lowermost part of the hoistway 1, the determiner can determine the presence or absence of the occurrence of rail removal based on the detection output of each detector 8. .
　ここで、地震発生後にテスト運転として、乗りかご２とつり合いおもり３が、互いにすれ違わない方向に、低速で昇降動作させることがある。この際、テスト運転前に、つり合いおもり３が、乗りかご２よりも、昇降路１の最上部側に配置されている場合、テスト運転時には、つり合いおもり３を昇降路１の最上部へ移動させ、判定器により、脱レールの発生の有無を判定する。 Here, as a test operation after an earthquake, the car 2 and the counterweight 3 may be moved up and down at low speeds in directions that do not pass each other. At this time, if the counterweight 3 is arranged on the uppermost side of the hoistway 1 with respect to the car 2 before the test operation, the counterweight 3 is moved to the uppermost portion of the hoistway 1 during the test operation. The presence or absence of rail removal is determined by the determiner.
　一方、テスト運転前に、つり合いおもり３が、乗りかご２よりも、昇降路１の最下部側に配置されている場合、テスト運転時には、つり合いおもり３を昇降路１の最下部へ移動させ、判定器により、脱レールの発生の有無を判定する。 On the other hand, when the counterweight 3 is arranged on the lowermost side of the hoistway 1 with respect to the car 2 before the test operation, the counterweight 3 is moved to the lowermost portion of the hoistway 1 during the test operation. The presence or absence of the occurrence of rail removal is determined by the determiner.
　テスト運転時に、脱レールが発生していない場合、エレベータを再稼動させ、脱レールが発生した場合には、エレベータを停止させる。地震発生後にテスト運転を行うことで、脱レールした状態で、乗りかご２とつり合いおもり３とのすれ違いを避けることができる。なお、テスト運転中に、脱レールが検出される前に、制御盤に配置されたトルク検出器によって、巻上機４に異常なトルクが発生したことが検出された場合も、昇降路１内に異常事態が発生しているとして、エレベータを停止させる操作が行われる。 ∙ During the test operation, if there is no rail release, restart the elevator. If a rail release occurs, stop the elevator. By performing a test operation after the earthquake occurs, it is possible to avoid the passing of the car 2 and the counterweight 3 in the state where the rail is released. It should be noted that, even during the test operation, when the abnormal torque is generated in the hoisting machine 4 by the torque detector arranged on the control panel before the rail release is detected, the inside of the hoistway 1 If an abnormal situation has occurred, an operation for stopping the elevator is performed.
　本実施例によれば、つり合いおもり３が昇降路１の最上部または最下部に位置する際に、検出器８と遮光ブラケット７の員数が最小限でも、脱レールの発生の有無を検知することができる。このため、テスト運転時に、つり合いおもり３が昇降路１の最上部または最下部に位置する際に、脱レールの発生を検知した場合、エレベータを停止させることで、脱レールした状態での、乗りかご２とつり合いおもり３とのすれ違いを避けることができる。 According to the present embodiment, when the counterweight 3 is positioned at the uppermost or lowermost part of the hoistway 1, it is possible to detect the occurrence of rail release even if the number of detectors 8 and light-shielding brackets 7 is minimal. Can do. For this reason, during the test operation, when the counterweight 3 is detected when the counterweight 3 is located at the uppermost part or the lowermost part of the hoistway 1, the elevator is stopped to stop Passing between the car 2 and the counterweight 3 can be avoided.
　実施例３は、２台の検出器８を、実施例２とは異なる位置に配置したものであり、他の構成は、実施例２と同様である。 In the third embodiment, two detectors 8 are arranged at positions different from those in the second embodiment, and other configurations are the same as those in the second embodiment.
　図５は、本発明の実施例３におけるエレベータの斜視図である。図５において、２台の検出器８は、昇降路１内の昇降路壁６に上下に分かれて配置されている。この際、昇降路１内の特定位置の昇降路壁として、つり合いおもり３が移動領域内を下降する際に、上昇する乗りかご２とすれ違う直前の移動領域に対応する第１昇降路壁と、つり合いおもり３が移動領域内を上昇する際に、下降する乗りかごと２すれ違う直前の移動領域に対応する第２昇降路壁が設定され、第１昇降路壁と第２昇降路壁にそれぞれ検出器８が配置されている。 FIG. 5 is a perspective view of an elevator according to Embodiment 3 of the present invention. In FIG. 5, the two detectors 8 are arranged separately on the hoistway wall 6 in the hoistway 1. At this time, as a hoistway wall at a specific position in the hoistway 1, a first hoistway wall corresponding to the moving area immediately before the counterweight 3 passes when the counterweight 3 descends in the moving area; When the counterweight 3 moves up in the moving area, the second hoistway wall corresponding to the moving area immediately before the passing car 2 passes is set and detected on the first hoistway wall and the second hoistway wall, respectively. A vessel 8 is arranged.
　具体的には、一方の検出器８は、昇降路１内の昇降路壁６のうち、つり合いおもり３が、昇降路１の最上部側から下降し、乗りかご２が、昇降路１の最下部側から上昇し、両者がすれ違う直前に、遮光ブラケット７と相対向する位置であって、遮光ブラケット７が、発光部８ａと受光部８ｂとの間の空間部内に挿入され、発光部８ａからの光信号を遮断（遮光）する位置（第１昇降路壁）に配置されている。 Specifically, one of the detectors 8 includes a counterweight 3 of the hoistway wall 6 in the hoistway 1 that descends from the uppermost side of the hoistway 1, and a car 2 that is the uppermost side of the hoistway 1. The light shielding bracket 7 is inserted into the space between the light emitting portion 8a and the light receiving portion 8b at a position opposite to the light shielding bracket 7 just before they rise from the lower side and pass each other. Is arranged at a position (first hoistway wall) where the optical signal is blocked (shielded).
　他方の検出器８は、昇降路１内の昇降路壁６のうち、つり合いおもり３が、昇降路１の最下部側から上昇し、乗りかご２が、昇降路１の最上部側から下降し、両者がすれ違う直前に、遮光ブラケット７と相対向する位置であって、遮光ブラケット７が、発光部８ａと受光部８ｂとの間の空間部内に挿入され、発光部８ａからの光信号を遮断する位置（第２昇降路壁）に配置されている。 In the other detector 8, the counterweight 3 of the hoistway wall 6 in the hoistway 1 is raised from the lowermost side of the hoistway 1, and the car 2 is lowered from the uppermost side of the hoistway 1. Immediately before they pass each other, the light-shielding bracket 7 is inserted into the space between the light-emitting unit 8a and the light-receiving unit 8b at a position opposite to the light-shielding bracket 7 and blocks the optical signal from the light-emitting unit 8a. It arrange | positions in the position (2nd hoistway wall) to do.
　即ち、つり合いおもり３が、昇降路１の最上部側から下降し、乗りかご２が、昇降路１の最下部側から上昇し、両者がすれ違う直前に、判定器は、各検出器８の検出出力を基に、脱レールの発生の有無を判定することができる。また、つり合いおもり３が、昇降路１の最下部側から上昇し、乗りかご２が、昇降路１の最上部側から下降し、両者がすれ違う直前に、判定器は、各検出器８の検出出力を基に、脱レールの発生の有無を判定することができる。この際、脱レールの発生が検知された場合には、エレベータの運転は、停止される。このため、脱レールした状態での、乗りかご２とつり合いおもり３とのすれ違いを避けることができる。また、地震発生後には、実施例２と同様に、テスト運転を実施することができる。 That is, just before the counterweight 3 is lowered from the uppermost side of the hoistway 1 and the car 2 is raised from the lowermost side of the hoistway 1 and the two pass each other, the determination device detects each detector 8. Based on the output, it is possible to determine whether or not a rail release has occurred. Further, just before the counterweight 3 is lifted from the lowermost side of the hoistway 1 and the car 2 is lowered from the uppermost side of the hoistway 1 and the two pass each other, the judging device detects each detector 8. Based on the output, it is possible to determine whether or not a rail release has occurred. At this time, when the occurrence of the rail release is detected, the operation of the elevator is stopped. For this reason, it is possible to avoid passing between the car 2 and the counterweight 3 in a state where the rail is removed. In addition, after the occurrence of the earthquake, the test operation can be performed in the same manner as in the second embodiment.
　本実施例によれば、検出器８と遮光ブラケット７の員数が最小限でも、つり合いおもり３が乗りかご２側に下降するか、あるいはつり合いおもり３が乗りかご２側に上昇し、両者がすれ違う直前に、脱レールの発生の有無を検知することができる。つり合いおもり３と乗りかご２とがすれ違う直前に、脱レールの発生が検知された場合、エレベータの運転を停止することで、脱レールした状態での、乗りかご２とつり合いおもり３とのすれ違いを避けることができる。 According to this embodiment, even if the number of the detector 8 and the light-shielding bracket 7 is minimum, the counterweight 3 is lowered to the car 2 side, or the counterweight 3 is raised to the car 2 side, and the two pass each other. Immediately before, it is possible to detect the presence or absence of a rail release. If the occurrence of derailing is detected immediately before the counterweight 3 and the car 2 pass each other, the operation of the elevator is stopped so that the difference between the car 2 and the counterweight 3 in the derailed state can be obtained. Can be avoided.
　実施例４は、遮光ブラケット７と検出器８の員数を増やしたものであり、他の構成は、実施例２または実施例３と同様である。 Example 4 is one in which the number of light-shielding brackets 7 and detectors 8 is increased, and the other configurations are the same as those in Example 2 or Example 3.
　図６は、本発明の実施例４を示す脱レール検出装置の構成図である。図６において、つり合いおもり３の軸方向両端側には、２つの遮光ブラケット７が、昇降路壁６と相対向した配置されている。昇降路壁６の最上部には、各遮光ブラケット７に相対向して、２台の検出器８が配置されている。なお、昇降路壁６の最下部にも、各遮光ブラケット７に相対向して、２台の検出器８が配置されている。 FIG. 6 is a configuration diagram of the derailing detection device showing the fourth embodiment of the present invention. In FIG. 6, two light shielding brackets 7 are arranged opposite to the hoistway wall 6 at both ends in the axial direction of the counterweight 3. Two detectors 8 are arranged on the uppermost part of the hoistway wall 6 so as to face each light shielding bracket 7. Two detectors 8 are arranged at the lowermost part of the hoistway wall 6 so as to face each light shielding bracket 7.
　この際、昇降路１内の特定位置の昇降路壁６として、つり合いおもり３が昇降路１内の最上部に位置する移動領域に対応する複数の最上部昇降路壁と、つり合いおもり３が昇降路１内の最下部に位置する移動領域に対応する複数の最下部昇降路壁が、つり合いおもり３の昇降方向と交差する方向（水平方向）に沿って互いに離れて設定され、各最上部昇降路壁と各最下部昇降路壁にそれぞれ検出器８が配置される。 At this time, as the hoistway wall 6 at a specific position in the hoistway 1, the counterweight 3 is lifted and lowered by a plurality of upper hoistway walls corresponding to the moving region where the counterweight 3 is located at the uppermost part in the hoistway 1. A plurality of lowermost hoistway walls corresponding to a moving region located at the lowermost part in the road 1 are set apart from each other along a direction (horizontal direction) intersecting with the lifting / lowering direction of the counterweight 3. Detectors 8 are arranged on the road walls and the lowermost hoistway walls.
　この場合、つり合いおもり３のうち各検出器８と対向する対向面側に配置された各遮光ブレケット７は、つり合いおもり３が昇降路１内で各検出器８と正常状態で対向する際に、各最上部昇降路壁に配置された各検出器８の発光部８ａと受光部８ｂとの間の空間部、又は各最下部昇降路壁に配置された各検出器８の発光部８ａと受光部８ｂとの間の空間部に位置決めされる。 In this case, each of the light shielding brackets 7 disposed on the opposite surface side of the counterweight 3 that faces each detector 8, when the counterweight 3 faces each detector 8 in the normal state in the hoistway 1, The space between the light emitting part 8a and the light receiving part 8b of each detector 8 arranged on each uppermost hoistway wall, or the light emitting part 8a and the light receiving part of each detector 8 arranged on each lowermost hoistway wall. It is positioned in the space part between the part 8b.
　昇降路壁６の最上部に位置する各検出器８は、昇降路１内の昇降路壁６のうち、つり合いおもり３が、昇降路１の最上部に位置する際に、各遮光ブラケット７と相対向する位置であって、各遮光ブラケット７が、各発光部８ａと各受光部８ｂとの間の空間部内に挿入され、各発光部８ａからの光信号を遮断する位置（最上部昇降路壁）に配置されている。 Each detector 8 located at the top of the hoistway wall 6 is connected to each light-shielding bracket 7 when the counterweight 3 is located at the top of the hoistway 1 among the hoistway walls 6 in the hoistway 1. Opposite positions, each light-shielding bracket 7 is inserted into a space between each light-emitting portion 8a and each light-receiving portion 8b, and is a position where the light signal from each light-emitting portion 8a is blocked (top hoistway) Wall).
　昇降路壁６の最下部に位置する検出器８は、昇降路１内の昇降路壁６のうち、つり合いおもり３が、昇降路１の最下部に位置する際に、各遮光ブラケット７と相対向する位置であって、各遮光ブラケット７が、各発光部８ａと各受光部８ｂとの間の空間部内に挿入され、各発光部８ａからの光信号を遮断する位置（最下部昇降路壁）に配置されている。このため、つり合いおもり３が昇降路１の最上部または最下部に位置する際に、判定器は、昇降路１の最上部または最下部に位置する各検出器８の検出出力を基に、脱レールの発生の有無を判定することができる。 The detector 8 located at the lowermost part of the hoistway wall 6 is relative to the light shielding bracket 7 when the counterweight 3 is located at the lowermost part of the hoistway 1 in the hoistway wall 6 in the hoistway 1. Each light shielding bracket 7 is inserted into a space between each light emitting portion 8a and each light receiving portion 8b, and is a position where the light signal from each light emitting portion 8a is blocked (lowermost hoistway wall) ). For this reason, when the counterweight 3 is located at the uppermost or lowermost part of the hoistway 1, the determiner demounts based on the detection output of each detector 8 located at the uppermost or lowermost part of the hoistway 1. Whether or not rails are generated can be determined.
　なお、つり合いおもり３が乗りかご２側に下降する際に、両者がすれ違う直前の位置と、つり合いおもり３が乗りかご２側に上昇し、両者がすれ違う直前の位置に、それぞれ２台の検出器８を配置することもできる。この際、昇降路１内の特定位置の昇降路壁６として、つり合いおもり３が移動領域内を下降する際に、上昇する乗りかご２とすれ違う直前の移動領域に対応する複数の第１昇降路壁と、つり合いおもり３が移動領域内を上昇する際に、下降する乗りかご２とすれ違う直前の移動領域に対応する複数の第２昇降路壁が、つり合いおもり３の昇降方向と交差する方向（水平方向）に沿って互いに離れて設定され、各第１昇降路壁と各第２昇降路壁にそれぞれ検出器８が配置されることになる。 When the counterweight 3 is lowered to the car 2 side, two detectors are located at the position immediately before the two pass each other, and the position immediately before the counterweight 3 is raised to the car 2 side and the two pass each other. 8 can also be arranged. At this time, as the hoistway wall 6 at a specific position in the hoistway 1, a plurality of first hoistways corresponding to the moving area just before passing the rising car 2 when the counterweight 3 descends in the moving area. When the wall and the counterweight 3 ascend in the movement area, a plurality of second hoistway walls corresponding to the movement area just before passing the car 2 that descends intersects the lifting direction of the counterweight 3 ( The detectors 8 are arranged on the first hoistway walls and the second hoistway walls, respectively.
　この場合、つり合いおもり３のうち検出器８と対向する対向面側に配置される各遮光ブラケット７は、つり合いおもり３が昇降路１内で各検出器８と正常状態で対向する際に、各第１昇降路壁に配置された各検出器８の発光部８ａと受光部８ｂとの間の空間部、又は各第２昇降路壁に配置された各検出器８の発光部８ａと受光部８ｂとの間の空間部に位置決めされる。 In this case, each of the light shielding brackets 7 disposed on the opposite surface side of the counterweight 3 that faces the detector 8 is connected to the counterweight 3 when the counterweight 3 is opposed to each detector 8 in the normal state in the hoistway 1. The space between the light emitting part 8a and the light receiving part 8b of each detector 8 arranged on the first hoistway wall, or the light emitting part 8a and the light receiving part of each detector 8 arranged on each second hoistway wall. It is positioned in the space part between 8b.
　また、本実施例においても、地震発生後に、テスト運転を実施することができる。 Also in this embodiment, a test operation can be performed after an earthquake occurs.
　本実施例によれば、実施例２、３と同様の効果を奏することができると共に、２台の検出器８と２つの遮光ブラケットを用いて脱レールの発生の有無を検知するようにしているので、実施例２、３のものよりも、より高精度に脱レールの発生を検出することができる。 According to the present embodiment, the same effects as those of the second and third embodiments can be obtained, and the presence / absence of derailing can be detected using the two detectors 8 and the two light shielding brackets. Therefore, it is possible to detect the occurrence of derailment with higher accuracy than in the second and third embodiments.
　なお、本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、各実施例において、昇降路内の特定位置の昇降路壁として、４つの昇降路壁を設定し、各昇降路壁にそれぞれ検出器を配置することもできる。つり合いおもり３が昇降路１内の最上部に位置する移動領域に対応する最上部昇降路壁と、つり合いおもり３が昇降路１内の最下部に位置する移動領域に対応する最下部昇降路壁と、つり合いおもり３が移動領域内を下降する際に、上昇する乗りかご２とすれ違う直前の移動領域に対応する第１昇降路壁と、つり合いおもり３が移動領域内を上昇する際に、下降する乗りかご２とすれ違う直前の移動領域に対応する第２昇降路壁を設定し、各昇降路壁に検出器８を配置する。 In addition, this invention is not limited to the above-mentioned Example, Various modifications are included. For example, in each embodiment, four hoistway walls can be set as hoistway walls at specific positions in the hoistway, and a detector can be arranged on each hoistway wall. The balance weight 3 corresponds to the uppermost hoistway wall corresponding to the moving region located at the uppermost part in the hoistway 1 and the lowermost hoistway wall corresponding to the moving region located corresponding to the lowermost part in the hoistway 1. When the counterweight 3 moves down in the moving area, the first hoistway wall corresponding to the moving area just before the rising car 2 and the counterweight 3 moves down in the moving area. A second hoistway wall corresponding to the moving area immediately before passing the car 2 is set, and a detector 8 is arranged on each hoistway wall.
　また、各実施例は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施例の構成の一部を他の実施例の構成に置き換えることが可能であり、また、ある実施例の構成に他の実施例の構成を加えることも可能である。また、各実施例の構成の一部について、他の構成の追加・削除・置換をすることが可能である Further, each embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to one having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. In addition, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.
１　昇降路、２　乗りかご、３　つり合いおもり、４　巻上機、５　ガイドレール、６　昇降路壁、７　遮光ブラケット、８　検出器、８ａ　発光部、８ｂ　受光部、９　ガイド部、２０　機械室、２３　制御盤。 1 hoistway, 2 passenger car, 3 counterweight, 4 hoisting machine, 5 guide rail, 6 hoistway wall, 7 shading bracket, 8 detector, 8a light emitting part, 8b light receiving part, 9 guide part, 20 machine room, 23 Control panel.

Claims (9)

  1. 　建屋の昇降路内の昇降路壁に鉛直方向に沿って配置された一対のガイドレールと、前記一対のガイドレールに案内されて、前記昇降路内の移動領域を昇降移動するつり合いおもりと、前記昇降路内に昇降自在に配置されて前記つり合いおもりと主索を介して接続される乗りかごと、前記つり合いおもりと前記乗りかごを前記主索を介して互いに逆方向に昇降駆動する巻上機とを有するエレベータの脱レール検出装置であって、
    　前記昇降路内の昇降路壁のうち前記つり合いおもりの移動領域を臨む特定位置の昇降路壁に配置されて、光信号を前記つり合いおもりの昇降方向と交差する方向に発光する発光部及び前記発光部からの光信号を空間部を介して受光する受光部を具備する検出器と、
    　前記つり合いおもりのうち前記検出器と対向する対向面側に配置されて、前記つり合いおもりが前記昇降路内で前記検出器と正常状態で対向する際に、前記発光部と前記受光部との間の空間部内に位置決めされる遮光ブラケットと、
    　前記検出器の検出出力を基に脱レールの発生の有無を判定する判定器と、を有し、
    　前記判定器は、
    　前記つり合いおもりが前記昇降路内の特定位置の昇降路壁に対応した移動領域内に存在することを条件に、前記発光部からの光信号が前記遮光ブラケットにより遮光されず、前記受光部が前記光信号を受光した場合、脱レールの発生が有りと判定することを特徴とするエレベータの脱レール検出装置。     A pair of guide rails arranged along the vertical direction on the hoistway wall in the hoistway of the building, and a counterweight guided by the pair of guide rails to move up and down the moving region in the hoistway; A hoisting machine disposed in a hoistway so as to be movable up and down and connected to the counterweight and the main rope, and the hoisting weight and the car are driven to move up and down in opposite directions via the main rope. An elevator derailment detection device comprising:
    A light emitting unit that is disposed on a hoistway wall at a specific position facing the moving area of the counterweight among the hoistway walls in the hoistway, and that emits an optical signal in a direction that intersects the hoisting direction of the counterweight and the light emission A detector including a light receiving unit that receives an optical signal from the unit through the space;
    The counterweight is disposed on the side of the counterweight facing the detector, and when the counterweight is opposed to the detector in the normal state in the hoistway, between the light emitting portion and the light receiving portion. A light shielding bracket positioned in the space of
    A determination unit for determining the presence or absence of derailing based on the detection output of the detector,
    The determiner is
    On the condition that the counterweight exists in a moving region corresponding to the hoistway wall at a specific position in the hoistway, the optical signal from the light emitting unit is not shielded by the light shielding bracket, and the light receiving unit is An elevator derailing detection apparatus, wherein when an optical signal is received, it is determined that the occurrence of derailing occurs.
  2. 　請求項１に記載のエレベータの脱レール検出装置であって、
    　前記昇降路内の特定位置の昇降路壁として、前記つり合いおもりが前記昇降路内の最上部に位置する移動領域に対応する最上部昇降路壁と、前記つり合いおもりが前記昇降路内の最下部に位置する移動領域に対応する最下部昇降路壁が設定され、前記最上部昇降路壁と前記最下部昇降路壁にそれぞれ前記検出器が配置されてなることを特徴とするエレベータの脱レール検出装置。     The elevator derailing detection apparatus according to claim 1,
    As the hoistway wall at a specific position in the hoistway, the uppermost hoistway wall corresponding to the moving region where the counterweight is located at the uppermost part in the hoistway, and the counterweight is the lowermost part in the hoistway The lowermost hoistway wall corresponding to the moving region located at the uppermost hoistway wall is set, and the detector is disposed on each of the uppermost hoistway wall and the lowermost hoistway wall. apparatus.
  3. 　請求項１又は２に記載のエレベータの脱レール検出装置であって、
    　前記昇降路内の特定位置の昇降路壁として、前記つり合いおもりが移動領域内を下降する際に、上昇する前記乗りかごとすれ違う直前の移動領域に対応する第１昇降路壁と、前記つり合いおもりが移動領域内を上昇する際に、下降する前記乗りかごとすれ違う直前の移動領域に対応する第２昇降路壁が設定され、前記第１昇降路壁と前記第２昇降路壁にそれぞれ前記検出器が配置されてなることを特徴とするエレベータの脱レール検出装置。     The elevator derailing detection device according to claim 1 or 2,
    As the hoistway wall at a specific position in the hoistway, when the counterweight descends in the moving area, the hoistway wall corresponding to the moving area just before the passing car passes and the counterweight When the vehicle moves up in the moving area, a second hoistway wall corresponding to the moving area immediately before passing the riding car is set, and the first hoistway wall and the second hoistway wall are respectively detected. An elevator derailment detection device characterized in that an elevator is arranged.
  4. 　請求項１、２又は３のうちいずれか１項に記載のエレベータの脱レール検出装置であって、
    　前記遮光ブラケットは、前記つり合いおもりのうち前記一対のガイドレール間の中心に対応する部位に配置されてなることを特徴とするエレベータの脱レール検出装置。     The elevator derailing detection device according to any one of claims 1, 2, and 3,
    The elevator derailment detecting device, wherein the light shielding bracket is disposed at a portion of the counterweight corresponding to a center between the pair of guide rails.
  5. 　請求項１項に記載のエレベータの脱レール検出装置であって、
    　前記昇降路内の特定位置の昇降路壁として、前記つり合いおもりが前記昇降路内の最上部に位置する移動領域に対応する複数の最上部昇降路壁と、前記つり合いおもりが前記昇降路内の最下部に位置する移動領域に対応する複数の最下部昇降路壁が、前記つり合いおもりの昇降方向と交差する方向に沿って互いに離れて設定され、前記各最上部昇降路壁と前記各最下部昇降路壁にそれぞれ前記検出器が配置され、
    　前記つり合いおもりのうち前記検出器と対向する対向面側には複数の遮光ブラケットが配置され、前記各遮光ブレケットは、前記つり合いおもりが前記昇降路内で前記検出器と正常状態で対向する際に、前記各最上部昇降路壁に配置された各検出器の前記発光部と前記受光部との間の空間部、又は前記各最下部昇降路壁に配置された各検出器の前記発光部と前記受光部との間の空間部に位置決めされてなることを特徴とするエレベータの脱レール検出装置。     The elevator derailing detection apparatus according to claim 1,
    As a hoistway wall at a specific position in the hoistway, a plurality of upper hoistway walls corresponding to a moving region where the counterweight is located at the uppermost part in the hoistway, and the counterweight in the hoistway A plurality of lowermost hoistway walls corresponding to a moving region located at the lowermost part are set apart from each other along a direction intersecting with the lifting / lowering direction of the counterweight, and each uppermost hoistway wall and each lowermost part The detectors are arranged on the hoistway walls,
    A plurality of light-shielding brackets are arranged on the side of the counterweight facing the detector of the counterweight, and each of the light-shielding brackets is used when the counterweight is opposed to the detector in the normal state in the hoistway. A space between the light emitting part and the light receiving part of each detector disposed on each uppermost hoistway wall, or the light emitting part of each detector disposed on each lowermost hoistway wall An elevator derailing detection device characterized by being positioned in a space portion between the light receiving portion and the light receiving portion.
  6. 　請求項１項に記載のエレベータの脱レール検出装置であって、
    　前記昇降路内の特定位置の昇降路壁として、前記つり合いおもりが移動領域内を下降する際に、上昇する前記乗りかごとすれ違う直前の移動領域に対応する複数の第１昇降路壁と、前記つり合いおもりが移動領域内を上昇する際に、下降する前記乗りかごとすれ違う直前の移動領域に対応する複数の第２昇降路壁が、前記つり合いおもりの昇降方向と交差する方向に沿って互いに離れて設定され、前記各第１昇降路壁と前記各第２昇降路壁にそれぞれ前記検出器が配置され、
    　前記つり合いおもりのうち前記検出器と対向する対向面側には、複数の遮光ブラケットが配置され、前記各遮光ブレケットは、前記つり合いおもりが前記昇降路内で前記検出器と正常状態で対向する際に、前記各第１昇降路壁に配置された各検出器の前記発光部と前記受光部との間の空間部、又は前記各第２昇降路壁に配置された各検出器の前記発光部と前記受光部との間の空間部に位置決めされてなることを特徴とするエレベータの脱レール検出装置。     The elevator derailing detection apparatus according to claim 1,
    A plurality of first hoistway walls corresponding to a moving region immediately before the counterweight is passed when the counterweight descends in the moving region as hoistway walls at specific positions in the hoistway; and When the counterweight rises in the movement area, the plurality of second hoistway walls corresponding to the movement area just before passing the ride car are separated from each other along the direction intersecting the lifting direction of the counterweight. Each detector is disposed on each first hoistway wall and each second hoistway wall,
    A plurality of light-shielding brackets are arranged on the opposite surface side of the counterweight that faces the detector, and each of the light-shielding brackets is when the counterweight is opposed to the detector in the normal state in the hoistway. In addition, a space between the light emitting part and the light receiving part of each detector arranged on each first hoistway wall, or the light emitting part of each detector arranged on each second hoistway wall An elevator derailment detection device, wherein the device is positioned in a space between the light receiving unit and the light receiving unit.
  7. 　建屋の昇降路内の昇降路壁に鉛直方向に沿って配置された一対のガイドレールと、前記一対のガイドレールに案内されて、前記昇降路内の移動領域を昇降移動するつり合いおもりと、前記昇降路内に昇降自在に配置されて前記つり合いおもりと主索を介して接続される乗りかごと、前記つり合いおもりと前記乗りかごを前記主索を介して互いに逆方向に昇降駆動する巻上機と、前記巻上機の駆動を制御する制御盤とを有するエレベータであって、
    　前記昇降路内の昇降路壁のうち前記つり合いおもりの移動領域を臨む特定位置の昇降路壁に配置されて、光信号を前記つり合いおもりの昇降方向と交差する方向に発光する発光部及び前記発光部からの光信号を空間部を介して受光する受光部を具備する検出器と、
    　前記つり合いおもりのうち前記検出器と対向する対向面側に配置されて、前記つり合いおもりが前記昇降路内で前記検出器と正常状態で対向する際に、前記発光部と前記受光部との間の空間部内に位置決めされる遮光ブラケットと、
    　前記検出器の検出出力を基に脱レールの発生の有無を判定する判定器と、を有し、
    　前記判定器は、
    　前記つり合いおもりが前記昇降路内の特定位置の昇降路壁に対応した移動領域内に存在することを条件に、前記発光部からの光信号が前記遮光ブラケットにより遮光されず、前記受光部が前記光信号を受光した場合、脱レールの発生が有りと判定し、この判定結果を前記制御盤に送出し、
    　前記制御盤は、
    　前記判定器が、脱レールの発生が有りと判定した場合、前記巻上機の駆動を停止してなることを特徴とするエレベータ。     A pair of guide rails arranged along the vertical direction on the hoistway wall in the hoistway of the building, and a counterweight guided by the pair of guide rails to move up and down the moving region in the hoistway; A hoisting machine disposed in a hoistway so as to be movable up and down and connected to the counterweight and the main rope, and the hoisting weight and the car are driven to move up and down in opposite directions via the main rope. And an elevator having a control panel for controlling the driving of the hoisting machine,
    A light emitting unit that is disposed on a hoistway wall at a specific position facing the moving area of the counterweight among the hoistway walls in the hoistway, and that emits an optical signal in a direction that intersects the hoisting direction of the counterweight and the light emission A detector including a light receiving unit that receives an optical signal from the unit through the space;
    The counterweight is disposed on the side of the counterweight facing the detector, and when the counterweight is opposed to the detector in the normal state in the hoistway, between the light emitting portion and the light receiving portion. A light shielding bracket positioned in the space of
    A determination unit for determining the presence or absence of derailing based on the detection output of the detector,
    The determiner is
    On the condition that the counterweight exists in a moving region corresponding to the hoistway wall at a specific position in the hoistway, the optical signal from the light emitting unit is not shielded by the light shielding bracket, and the light receiving unit is When an optical signal is received, it is determined that there is a rail release, and this determination result is sent to the control panel,
    The control panel
    The elevator characterized by stopping driving of the hoisting machine when the judging device judges that the occurrence of rail removal has occurred.
  8. 　請求項７に記載のエレベータであって、
    　前記昇降路内の特定位置の昇降路壁として、前記つり合いおもりが前記昇降路内の最上部に位置する移動領域に対応する最上部昇降路壁と、前記つり合いおもりが前記昇降路内の最下部に位置する移動領域に対応する最下部昇降路壁が設定され、前記最上部昇降路壁と前記最下部昇降路壁にそれぞれ前記検出器が配置されてなることを特徴とするエレベータ。     The elevator according to claim 7, wherein
    As the hoistway wall at a specific position in the hoistway, the uppermost hoistway wall corresponding to the moving region where the counterweight is located at the uppermost part in the hoistway, and the counterweight is the lowermost part in the hoistway An elevator comprising: a lowermost hoistway wall corresponding to a moving region located in the uppermost hoistway wall, and the detectors disposed on the uppermost hoistway wall and the lowermost hoistway wall, respectively.
  9. 　請求項７又は８に記載のエレベータであって、
    　前記昇降路内の特定位置の昇降路壁として、前記つり合いおもりが移動領域内を下降する際に、上昇する前記乗りかごとすれ違う直前の移動領域に対応する第１昇降路壁と、前記つり合いおもりが移動領域内を上昇する際に、下降する前記乗りかごとすれ違う直前の移動領域に対応する第２昇降路壁が設定され、前記第１昇降路壁と前記第２昇降路壁にそれぞれ前記検出器が配置されてなることを特徴とするエレベータ。     The elevator according to claim 7 or 8,
    As the hoistway wall at a specific position in the hoistway, when the counterweight descends in the moving area, the hoistway wall corresponding to the moving area just before the passing car passes and the counterweight When the vehicle moves up in the moving area, a second hoistway wall corresponding to the moving area immediately before passing the riding car is set, and the first hoistway wall and the second hoistway wall are respectively detected. An elevator characterized in that a unit is arranged.
PCT/JP2014/054110 2014-02-21 2014-02-21 Derailment detection device for elevator WO2015125264A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547504U (en) * 1977-06-20 1979-01-18
JPS5467941A (en) * 1977-11-08 1979-05-31 Mitsubishi Electric Corp Counterweight for elevator
JP2001247270A (en) * 2000-03-08 2001-09-11 Toshiba Corp Landing detecting device of elevator
JP2003238038A (en) * 2002-02-12 2003-08-27 Toshiba Elevator Co Ltd Car position detecting device of elevator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547504U (en) * 1977-06-20 1979-01-18
JPS5467941A (en) * 1977-11-08 1979-05-31 Mitsubishi Electric Corp Counterweight for elevator
JP2001247270A (en) * 2000-03-08 2001-09-11 Toshiba Corp Landing detecting device of elevator
JP2003238038A (en) * 2002-02-12 2003-08-27 Toshiba Elevator Co Ltd Car position detecting device of elevator

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