WO2011114370A1 - Ascenseur à encombrement réduit - Google Patents

Ascenseur à encombrement réduit Download PDF

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Publication number
WO2011114370A1
WO2011114370A1 PCT/JP2010/001888 JP2010001888W WO2011114370A1 WO 2011114370 A1 WO2011114370 A1 WO 2011114370A1 JP 2010001888 W JP2010001888 W JP 2010001888W WO 2011114370 A1 WO2011114370 A1 WO 2011114370A1
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WO
WIPO (PCT)
Prior art keywords
roller
space
car
rope
sheave
Prior art date
Application number
PCT/JP2010/001888
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English (en)
Japanese (ja)
Inventor
萩原高行
荒川淳
平野薫
Original Assignee
株式会社 日立製作所
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 株式会社 日立製作所 filed Critical 株式会社 日立製作所
Priority to CN201080064523.2A priority Critical patent/CN102762480B/zh
Priority to PCT/JP2010/001888 priority patent/WO2011114370A1/fr
Priority to JP2012505303A priority patent/JP5387758B2/ja
Publication of WO2011114370A1 publication Critical patent/WO2011114370A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3492—Position or motion detectors or driving means for the detector

Definitions

  • the present invention relates to an elevator that detects the speed of a car.
  • the present invention is suitable for a space-saving elevator in which an emergency stop device, a governor device, etc. are electronically enhanced.
  • Patent Document 2 discloses that an encoder is attached to a lower deflector of a rope that suspends a car to detect a car speed.
  • Patent Document 3 describes that an emergency stop device (electric emergency stop device) that is operated by an electromagnetic actuator is operated.
  • Patent Document 3 simply uses a safety controller and operates an electric emergency stop device, and does not consider the arrangement of the car speed sensor, hoisting machine, and safety controller. It is not suitable for high accuracy and self-checking, and more safety is desired.
  • the hoisting machine brakes are operated at 1.3 times the rated speed and the emergency stop device is operated at 1.4 times the emergency stop to stop the car. The speed difference between speeds is reduced, and a more accurate car speed sensor is required.
  • An object of the present invention is to solve the above-described problems of the prior art, detect the car speed with higher accuracy, and improve safety as a space-saving electronic safety elevator. Another object is to make it more suitable for space saving even if higher accuracy and higher functionality are achieved in terms of safety.
  • the present invention comprises a car that travels up and down in a hoistway, a hoisting machine disposed between the hoistway and the car, and a vehicle driven by the hoisting machine.
  • the roller since the speed of the car is detected by the rotation of the roller arranged to be pressed against the rope stretched between the sheave and the turning pulley, the roller is placed in the dead space on the vertical projection surface of the sheave.
  • the speed sensor is installed, and there is no need to secure a new space for the speed sensor, which saves space and enables more accurate detection of the car speed, saving space and saving electronic safety. Safety can be improved as an elevator.
  • car speed sensor part in FIG. The top view which shows the detail of a cage
  • the car 1 is guided to guide rails 3 (3a, 3b) laid in the height direction of the hoistway 2.
  • Guide devices (not shown) are attached to the upper and lower sides of the left and right sides of the car 1, and the guide devices are guided by contacting the guide rails 3.
  • Two lower pulleys 4 are attached to the lower part of the car 1, and a rope 5 is stretched to support the car 1 from the lower side of the lower pulley 4.
  • One end of the rope 5 is fixed to the top 6a of the hoistway 2, and the other end is wound around a turning pulley 7a facing the sheave and proceeds downward, and the hoisting machine 8 disposed in the space beside the guide rail 3b. It winds around the sheave 9 and proceeds upward, and is fixed to the top 6b of the hoistway 2 via the rear turning pulley 7b and the pulley 11 of the counterweight 10.
  • the counterweight 10 moves up and down along the guide rail 47 of the counterweight 10 disposed in the space beside the guide rail 3b.
  • the manner of tensioning the rope 5 as described above is called an underslang type, and the speed of the car 1 is 1 ⁇ 2 of the speed of the rope 5 and is advantageous for a gearless motor, so a low speed elevator is desirable.
  • the roller 14 is disposed above the sheave 9 and on the vertical projection surface of the sheave 9 so that the rotation shaft 31 of the roller 14 is substantially parallel to the rotation axis of the sheave 9. Is pressed onto the rope 5.
  • the encoder 16 is attached to the rotating shaft 31 of the roller 14 and generates a pulse signal proportional to the rotational speed. If two encoders 16 are attached, it is desirable that the operation can be continued even if one encoder 16 breaks down.
  • the electric emergency stop device is attached to the left and right of the car 1 and is composed of actuators that grip the guide rail 3a and brake the car 1. By de-energizing the actuator, the car 1 is braked by the frictional force with the guide rail 3a.
  • the main controller 12 is disposed below the hoistway 2 where the hoisting machine 8 is installed, and drives the hoisting machine 8 to raise and lower the car 1.
  • a hoisting machine encoder 43 indicated by a broken line is attached inside the hoisting machine 8, and the main controller 12 controls the rotational speed of the hoisting machine 8 using information of the hoisting machine encoder 43.
  • the safety controller 20 is a microcomputer or the like, performs an operation on an input signal, and is disposed below the hoistway 2 where the hoisting machine 8 and the car speed sensor 13 are disposed.
  • the emergency stop device that operates electrically is a safety device together with the brake of the hoisting machine 8.
  • the pulse of the encoder 16 of the car speed sensor 13 is transmitted to the safety controller 20 through the signal cable 21.
  • the pulse signal of the hoisting machine encoder 43 of the hoisting machine 8 is transmitted to both the main controller 12 and the safety controller 20 via the cable 44.
  • the safety controller 20 calculates the speed of the car 1 and the rotational speed of the hoisting machine by counting the pulse signals within a predetermined time of the encoders 16 and 43.
  • the safety controller 20 determines the speed of the car 1 (the moving speed of the rope 5) and the sheave 9 from the pulse signals of the encoder 16 of the car speed sensor 13 (detecting the rotational speed of the roller 14) and the hoisting machine encoder 43 of the hoisting machine 8.
  • the peripheral speed is calculated and compared (or the rotational speeds of the roller 14 and the hoisting machine 8 are directly compared).
  • the mutual speed difference exceeds the allowable range, it is determined that there is a failure, and the operation of the elevator is stopped by operating the brake of the hoisting machine 8.
  • the hoisting machine 8 Since the hoisting machine 8, the main controller 12, the car speed sensor 13 (roller 14) and the safety controller 20 are all arranged at the lower part of the hoistway 2, there is no need to connect the devices with a long signal cable as a system. Can be made more compact.
  • positioning the hoisting machine 8 above the hoistway 2 it is desirable to arrange
  • the car speed sensor 13 uses a roller 14 pressed against the rope 5 that suspends the car and an encoder 16 provided on the rotation shaft of the roller 14.
  • the encoder 16 outputs a pulse signal having a frequency proportional to the rotation speed of the roller 14. appear.
  • the safety controller 20 counts the number of pulses per time of the encoder 16 to calculate the moving speed of the rope 5, and detects the speed of the car 1 by multiplying this by 1/2.
  • the roller 14 is arranged on the rope 5 stretched on the sheave 9 and the turning pulley 7 a facing the sheave 9 so as to overlap the sheave 9 vertically.
  • the shaft of the roller 14 is supported by the arm 32, and the roller 14 is pressed against the rope 5 by pressing the arm 32 with the spring 15. Since the car speed sensor 13 is accommodated in the dead space above the sheave 9 and the hoisting machine 8, it is not necessary to secure a new installation space, and the space for the conventional governor and governor rope is not required, thus saving space. It becomes.
  • the rope 5 expands and contracts between the sheave 9 and the roller 14 and the rope 5 at the position of the sheave 9 and the roller 14. It is necessary to avoid the speed difference. Therefore, the influence of the expansion and contraction of the rope 5 can be reduced by disposing the roller 14 closer to the sheave 9 than the intermediate position of the sheave 9 and the turning pulley 7 a facing the sheave 9.
  • the speed detection results of the hoisting machine encoder 43 of the hoisting machine 8 and the car speed sensor 13 are in good agreement, and the self-check can be performed accurately. . Therefore, it is desirable to stop the car 1 when a detection error of the car speed sensor 13 itself, that is, a self-check error occurs, the car 1 based on the self-check error at this time is preferably stopped. Stopping can be prevented.
  • FIG. 2 shows a state in which an intermediate portion of the hoistway 2 is cut in a horizontal section and viewed from above, and the car 1 is in the center of the hoistway 2, and the car 1 is located between the car 1 and the wall 28 of the hoistway 2.
  • a counterweight 10 is arranged. Since the car 1 and the counterweight 10 move up and down, no other equipment can be placed on these vertical projection planes. Further, the guide rail 3 and the rope 5 are installed in the entire area of the hoistway 2. Furthermore, a space for the sill 30 that supports the door 29 and the door 29 that opens and closes must also be secured in the hoistway 2.
  • the guide rail 3 and the rope 5 are also installed throughout the hoistway 2, and a space for the door 29 and the sill 30 that supports the door 29 to be opened and closed must be secured in the hoistway 2.
  • the hoisting machine 8 uses a thin hoisting machine 8 and a surface surrounding the movable range of the car 1 and the hoistway 2. It is arranged in the space between the walls 28.
  • the thin hoisting machine 8 has a small axial dimension and a large diameter. In order to reduce the cross-sectional area of the hoistway 2 as much as possible, the space where equipment can be installed is limited as shown in the figure. Furthermore, the depth of the hoistway 2 is reduced to save space.
  • the roller 14 of the car speed sensor 13 Since the roller 14 of the car speed sensor 13 is affected by the unevenness formed on the surface of the rope 5 by the stranded wire, the rotation speed becomes uneven. Therefore, in order to detect the speed with high accuracy, the radius of the roller 14 is set on the surface of the rope 5.
  • the size is preferably 3 to 6 times the unevenness interval. That is, the diameter of the roller 14 cannot be reduced from the point of accuracy required, and it is important to secure a space for the roller 14. Therefore, the roller 14 is arranged on the sheave 9 in the vertical direction, that is, so as to overlap with the vertical projection surface of the sheave 9, and the depth of the hoistway 2 is further reduced.
  • the space of the spring 15 for pressing the roller 14 against the rope 5 is essential, and when the car speed sensor 13 is disposed in the space between the sheave 9 and the sill 30 or the space between the sheave 9 and the guide rail 3b, The area of the hoistway 2 is increased. Therefore, the radius of the roller 14 is made smaller than the radius of the sheave 9, the spring 15 and the arm 32 are vertically stacked on the sheave 9 and the hoisting machine 8, and the space of the spring 15 and the arm 32 is placed in the hoistway 2. Secure.
  • the rope 5 is wound around the lower half of the sheave 9.
  • the roller 14 and the encoder 16 are separated so that the encoder 16 does not interfere with the hoisting machine 8. It is necessary to deepen the hoistway 2 only on the lower side, and the space is not saved as the diameter of the roller 14 is increased to achieve higher accuracy.
  • the car speed sensor 13 is placed vertically on the sheave 9 and the roller 14 is pressed against the surface of the rope 5 that contacts the sheave 9. Thereby, it is not necessary to newly secure a space for the car speed sensor 13. The same applies to the case where the hoisting machine 8 is shifted upward, and the car speed sensor 13 may be disposed in a space above the sheave 9.
  • FIG. 3 shows a detailed side view of the car speed sensor 13, the hoist 8 and the sheave 9.
  • the car speed sensor 13 Since the outer diameter of the hoisting machine 8 is larger than that of the sheave 9, the car speed sensor 13 is arranged away from the sheave 9 to a position where it does not interfere with the hoisting machine 8.
  • the bracket 34 is fixed to the beam 45 extended from the hoistway 2 and the car speed sensor 13 is attached.
  • the shaft 55 of the spring 15 passes under the encoder 16.
  • a bracket 38 is provided on the left side of the roller 14, and when the car speed sensor 13 is inspected, a depression is made in the bracket 38 and the speedometer is fixed.
  • the protective plate 35 has a shape having a vertical surface along the rope 5 above the roller 14 and is fixed to the beam 45.
  • the width of the protection plate 35 is made wider than the width of the roller 14, the vertical surface is further away from the rope 5 than the rope contact surface of the roller 14, and is closer to the rope 5 than the rotation axis of the roller 14.
  • the upper end of the protection plate 35 is bent so as to cover the roller 14, and the gap between the lower end of the protection plate 35 and the roller 14 is made smaller than the diameter of the rope 5.
  • FIG. 4 shows a state in which the car speed sensor 13 is viewed from above, which is shown in the hoisting machine 8 and the sheave 9, and the roller 14 is shown in a cross section so that the inside can be seen.
  • the roller 14 has a bowl-like shape with the hoisting machine 8 side open, and the outer peripheral width on the side where the roller 14 is in contact with the rope 5 is large enough to contact at least one rope 5.
  • the rotating shaft 31 is arranged substantially parallel to the rotating shaft of the sheave 9 and is in contact with the nearest rope 5a.
  • the rotating shaft 31 of the roller 14 is attached to the bottom of the bowl and supported by a bearing provided at the tip of an arm 32 that is submerged inside the roller 14, and the hoistway 2 passes above the hoisting machine 8 via the bracket 34. Is fixed to a beam 45 stretched from.
  • the arm 32 is supported by a bracket 34 by a shaft 33, and the arm 32 is rotated by a rotating shaft 33 that is orthogonal to the shaft 31.
  • Rotating shaft 31 has coupling 50 attached thereto and connects extension shaft 51.
  • the extension shaft 51 is fixed to the hollow shafts of the two encoders 16a and 16b, and the end of the extension shaft 55 is housed in the encoder 16b.
  • the casings of the encoders 16 a and 16 b are fixed to the arm 32 via a flexible bracket 52.
  • the rotary shaft 31 is arranged on the end face of the sheave 9 to enlarge the bowl-shaped internal cavity of the roller 14 and secure a space for the encoder 16 therein.
  • the car speed sensor 13 can be accommodated within the width dimension of the sheave 9 and the hoisting machine 8, and it is not necessary to secure a new space for the car speed sensor 13.
  • a receiving plate 53 that receives the spring 15 is attached to the lower surface of the arm 32. Then, the spring 15 is applied to the receiving plate 53 to push the arm 32 toward the rope and press the roller 14 against the rope 5.
  • the bracket 54 is attached to the beam 45 opposite to the spring 15 of the arm 32, and the root of the shaft 55 is fixed.
  • the shaft 55 extends to the opposite side of the arm 32 through the lower side of the encoder 16 attached to the arm 32, passes through the tip of the shaft 55 through the hole 57 provided in the receiving plate 53, and passes through the center of the spring 15. .
  • a spring retainer 56 is attached where the tip of the shaft 55 has come out of the spring 15, and the tip of the spring 15 is pressed and biased.
  • the roller 14 can be brought into contact with the single rope 5a. That is, even if the rope 5a is shaken and the position is changed, the angle of the arm 32 is changed and the rope 5a is always in contact with the rope 5a. Further, since the distance from the base of the shaft to the receiving plate 53 can be increased by passing the shaft 55 under the encoder, even if the angle of the arm 32 changes following the swing of the rope 5, the angle of the shaft 55 The change is small, and the spring 15 and the tip of the shaft 55 can be prevented from shaking and interfering with the rope 5 and the car 1.
  • the safety controller 20 calculates the speed of the car 1 (moving speed of the rope 5) and the peripheral speed of the sheave 9 from the pulse signals of the encoder 16 of the car speed sensor 13 and the hoisting machine encoder 43 of the hoisting machine 8, Are compared, that is, the car speed sensor 13 is self-checked. And when a mutual speed difference exceeds an allowable range, it judges that it is a failure and operates the brake of the hoisting machine 9 to stop the operation of the elevator. When the speeds of the encoder of the car speed sensor 13 and the encoder of the hoisting machine 8 do not match, the safety controller 20 operates the brake of the hoisting machine 8 and stops the car 1.
  • the safety controller 20 can prevent a detection error of overspeed due to a failure of the car speed sensor 13 by performing the self-check frequently during the operation of the elevator.
  • the safety controller 20 selects the speed that matches the speed of the hoisting machine encoder 43 of the hoisting machine 8. That is, even if one encoder 16 of the car speed sensor 13 fails, it can be determined which encoder 16 has failed, and the operation can be continued while correctly detecting the speed of the car 1. Thereby, it is possible to prevent the elevator operation from frequently stopping due to the failure of the encoder 16 of the car speed sensor 13.
  • the safety microcomputer 20 causes the brake of the hoisting machine 8 to be inconsistent because of the speed discrepancy. To work.
  • FIG. 5 shows a state in which the car speed sensor 13 is viewed from above, and the inspection procedure of the car speed sensor 13 will be described.
  • the edge of the roller 14 is widened so that the speedometer 40 is applied to the roller 14.
  • the speedometer 40 is fixed to the bracket 38 with a band 42 or the like.
  • the roller 14 is rotated at a high speed by, for example, applying a rotating roller of a drill (not shown) to the roller 14, and the speed measured by the speedometer 40 and the speed detected by the car speed sensor 13 are compared and inspected.
  • the roller 14 of the car speed sensor 13 may be affected by unevenness formed on the surface of the rope 5 by the stranded wire of the rope 5, and the rotation speed may be uneven.
  • (1) in FIG. 6 shows a state in which the roller 14 rides on the ridge of the stranded wire, and the rope 5 is viewed as a cylinder as shown by the broken line, and the roller 14 with the radius r is in contact with this. It ’s fine.
  • the rotational speed ⁇ of the roller 14 is v / r and is inversely proportional to the radius r of the roller 14.
  • the rope 5 and the roller 14 are in contact with each other at two points in a state where the roller 14 is completely submerged in the concave portion of the stranded wire as shown in FIG. Therefore, the substantial radius of the roller 14 is reduced. Due to these factors, unevenness of the rope 5 causes uneven rotation speed of the roller 14.
  • the apparent roller radius r ′ when the roller 14 sinks into the concave portion of the stranded wire can be obtained by simplifying with an isosceles triangle composed of the roller center O, the two contact points A and B of the roller 14 and the rope 5. . Then, the radius r of the roller 14 was determined so that the speed fluctuation range represented by (r ⁇ r ′) / r ⁇ 100 (%) was 1% or less.
  • the twisted wire pitch Pr of the rope 5 is desirably about 10 mm, and the radius of the roller 14 is preferably 36 mm or more. That is, the radius of the roller 14 is 3 to 6 times (preferably 4 to 5 times) the stranded wire pitch Pr on the surface of the rope 5, which is suitable for high accuracy. Furthermore, the diameter of the roller 14 cannot be reduced from the point of accuracy required, and it is important to secure a space for the roller 14.
  • FIG. 7 shows a moving distance l calculated based on the angles ⁇ and ⁇ at which the roller 14 rotates before and after the step ⁇ .
  • the moving distance x of the rope 5 is shown.
  • the roller 14 contacts the rope at two points A and B before the step ⁇ .
  • the angle ⁇ formed by the line segments OA and OB drawn from the center O of the roller 14 corresponds to the rotation angle of the roller 14 when the roller 14 passes through the step ⁇ and proceeds to the position of the broken line.
  • the radius of the roller 14 that allows the step ⁇ to 1.5 mm is 50 mm or more.
  • the upper limit of the radius of the roller 14 is preferably set such that the roller 14 has a radius smaller than the radius of the sheave 9 because the roller 14 is disposed so as to overlap the sheave 9 in the vertical direction. Specifically, if the radius of the sheave 9 is 200 mm, the radius of the roller 14 is made smaller than 200 mm.
  • the radius of the roller 14 is 36 mm or more (preferably 50 mm or more) and 200 mm or less.
  • FIG. 8 shows a case where the base shaft 33 of the arm 32 is arranged in parallel to the rotation shaft 31 of the roller 14, unlike the example already described, and the base shaft 33 of the arm 32 is used as the rotation shaft 31 of the roller 14. The reason is as follows.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Elevator Control (AREA)

Abstract

L'invention porte sur un ascenseur à encombrement réduit dans lequel la vitesse d'une cabine d'ascenseur est détectée plus précisément et dans lequel le degré de sécurité en tant qu'ascenseur sûr, électronique, à encombrement réduit, est également amélioré. L'ascenseur à encombrement réduit comporte : une cabine d'ascenseur (1) qui se déplace vers le haut et vers le bas dans une cage (2) ; un monte-charge (8) qui est disposé à l'intérieur de la cage (2), et un réa (9) qui a un câble (5) enroulé autour de celui-ci, le câble (5) étant serré de façon à être entraîné par le monte-charge (8) et à porter la cabine d'ascenseur (1). La vitesse de la cabine d'ascenseur (1) peut être détectée et l'ascenseur occupe moins d'espace. À cette fin, l'ascenseur à encombrement réduit comporte en outre : une poulie à rotation (7a) qui est disposée à l'opposé du réa (98), et un rouleau (14) qui est disposé de façon à être pressé contre le câble (5) entre le réa (9) et la poulie à rotation (7a). La vitesse de la cabine d'ascenseur (1) est détectée à partir de la rotation du rouleau (14).
PCT/JP2010/001888 2010-03-17 2010-03-17 Ascenseur à encombrement réduit WO2011114370A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201080064523.2A CN102762480B (zh) 2010-03-17 2010-03-17 节省空间型电梯
PCT/JP2010/001888 WO2011114370A1 (fr) 2010-03-17 2010-03-17 Ascenseur à encombrement réduit
JP2012505303A JP5387758B2 (ja) 2010-03-17 2010-03-17 省スペースエレベーター

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/001888 WO2011114370A1 (fr) 2010-03-17 2010-03-17 Ascenseur à encombrement réduit

Publications (1)

Publication Number Publication Date
WO2011114370A1 true WO2011114370A1 (fr) 2011-09-22

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Application Number Title Priority Date Filing Date
PCT/JP2010/001888 WO2011114370A1 (fr) 2010-03-17 2010-03-17 Ascenseur à encombrement réduit

Country Status (3)

Country Link
JP (1) JP5387758B2 (fr)
CN (1) CN102762480B (fr)
WO (1) WO2011114370A1 (fr)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
EP2567923A1 (fr) * 2011-09-12 2013-03-13 Wachendorff Automation GmbH & Co. KG Copiage de mire redondant
JP6271680B1 (ja) * 2016-11-09 2018-01-31 東芝エレベータ株式会社 エレベータのロープ検査システム
CN109179150A (zh) * 2018-11-17 2019-01-11 山东科技大学 一种可发电储电和缓冲性能监测的滚轮罐耳
CN111986253A (zh) * 2020-08-21 2020-11-24 日立楼宇技术（广州）有限公司 电梯拥挤程度的检测方法、装置、设备及存储介质
JP7288620B1 (ja) 2022-03-29 2023-06-08 フジテック株式会社 エレベータ

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US11548758B2 (en) 2017-06-30 2023-01-10 Otis Elevator Company Health monitoring systems and methods for elevator systems
JP6445657B1 (ja) * 2017-11-08 2018-12-26 東芝エレベータ株式会社 エレベータのロープ検査システム
CN110862051A (zh) * 2019-12-18 2020-03-06 青岛高测科技股份有限公司 一种多维大负载输送设备

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JP4265444B2 (ja) * 2004-03-01 2009-05-20 株式会社日立製作所 エレベーター装置

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CN1187253C (zh) * 2000-09-20 2005-02-02 三菱电机株式会社 电梯装置

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Publication number Priority date Publication date Assignee Title
JPS61277573A (ja) * 1985-05-31 1986-12-08 三菱電機株式会社 エレベ−タの速度測定装置
JP2002120977A (ja) * 2000-10-13 2002-04-23 Mitsubishi Electric Corp エレベーターのかご位置検出装置
JP4184774B2 (ja) * 2002-12-11 2008-11-19 株式会社日立製作所 エレベーター用巻上機
JP2004002045A (ja) * 2003-08-20 2004-01-08 Mitsubishi Electric Corp エレベーター装置
JP4265444B2 (ja) * 2004-03-01 2009-05-20 株式会社日立製作所 エレベーター装置
WO2007063574A1 (fr) * 2005-11-29 2007-06-07 Mitsubishi Denki Kabushiki Kaisha Dispositif de commande pour ascenseur

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2567923A1 (fr) * 2011-09-12 2013-03-13 Wachendorff Automation GmbH & Co. KG Copiage de mire redondant
JP6271680B1 (ja) * 2016-11-09 2018-01-31 東芝エレベータ株式会社 エレベータのロープ検査システム
JP2018076151A (ja) * 2016-11-09 2018-05-17 東芝エレベータ株式会社 エレベータのロープ検査システム
CN109179150A (zh) * 2018-11-17 2019-01-11 山东科技大学 一种可发电储电和缓冲性能监测的滚轮罐耳
CN111986253A (zh) * 2020-08-21 2020-11-24 日立楼宇技术（广州）有限公司 电梯拥挤程度的检测方法、装置、设备及存储介质
CN111986253B (zh) * 2020-08-21 2023-09-15 日立楼宇技术（广州）有限公司 电梯拥挤程度的检测方法、装置、设备及存储介质
JP7288620B1 (ja) 2022-03-29 2023-06-08 フジテック株式会社 エレベータ
JP2023146880A (ja) * 2022-03-29 2023-10-12 フジテック株式会社 エレベータ

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