EP2233423A1 - Aufzugsvorrichtung - Google Patents

Aufzugsvorrichtung Download PDF

Info

Publication number
EP2233423A1
EP2233423A1 EP08710581A EP08710581A EP2233423A1 EP 2233423 A1 EP2233423 A1 EP 2233423A1 EP 08710581 A EP08710581 A EP 08710581A EP 08710581 A EP08710581 A EP 08710581A EP 2233423 A1 EP2233423 A1 EP 2233423A1
Authority
EP
European Patent Office
Prior art keywords
car
detecting
speed
switch
displacing
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP08710581A
Other languages
English (en)
French (fr)
Other versions
EP2233423A4 (de
Inventor
Mineo Okada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2233423A1 publication Critical patent/EP2233423A1/de
Publication of EP2233423A4 publication Critical patent/EP2233423A4/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • 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
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces

Definitions

  • the present invention relates to an elevator apparatus that has a car that is moved inside a hoistway.
  • elevator apparatuses have been proposed that activate a safety apparatus if a car speed exceeds a predetermined set speed.
  • car position is detected from an amount of rotation of a rotating body that rotates together with the movement of the car, and the set speed mentioned above is changed in response to the car position.
  • the set speed is lowered as the car position approaches terminal portions of the hoistway.
  • reductions in sizes of buffers that are disposed in a pit portion of the hoistway can be achieved, and overall height of the hoistway can be shortened (See Patent Literature 1).
  • the present invention aims to solve the above problems and an object of the present invention is to provide an elevator apparatus that can be installed easily, and that enables size reductions in a hoistway.
  • an elevator apparatus characterized in including: a car on which a detected body is disposed, and that is moved inside a hoistway; a car position detecting apparatus that has a position switch that is disposed inside the hoistway and that can detect the detected body, the car position detecting apparatus detecting presence or absence of the car in a predetermined region that is positioned in a terminal portion of the hoistway by presence or absence of detection of the detected body by the position switch; a speed governor sheave that is rotated together with movement of the car; a sheave interlocking device that has a displacing body that can be displaced in response to rotational speed of the speed governor sheave; an overspeed detecting switch that is displaceable between a first detecting position at which the displacing body is detected when a speed value of the car is a predetermined first reference value, and a second detecting position at which the displacing body is detected when the speed value of the car
  • FIG. 1 is a structural diagram that shows an elevator apparatus according to Embodiment 1 of the present invention.
  • a machine room 2 is disposed in an upper portion of a hoistway 1.
  • a hoisting machine (a driving machine) 4 that has a drive sheave 3; a deflecting sheave 5 that is disposed so as to be positioned at a distance from the drive sheave 3; and a control apparatus 6 that controls elevator operation.
  • a common main rope 7 is wound around the drive sheave 3 and the deflecting sheave 5.
  • a car 8 and a counterweight 9 that can be raised and lowered inside the hoistway 1 are suspended by the main rope 7.
  • the car 8 and the counterweight 9 are raised and lowered inside of the hoistway 1 by rotation of the drive sheave 3.
  • the car 8 and the counterweight 9 are raised and lowered inside the hoistway 1, the car 8 is guided by car guide rails (not shown), and the counterweight 9 is guided by counterweight guide rails (not shown).
  • An emergency stopper apparatus 10 that stops falling of the car 8 is disposed on a lower portion of the car 8.
  • An operating arm 11 is disposed on the emergency stopper apparatus 10.
  • the emergency stopper apparatus 10 grips the car guide rails when the operating arm 11 is operated. Movement of the car 8 is stopped by gripping of the car guide rails by the emergency stopper apparatus 10.
  • a speed governor 12 is disposed inside the machine room 2, and a tension sheave 13 is disposed in a lower portion inside the hoistway 1.
  • the speed governor 12 has: a speed governor main body 14; and a speed governor sheave 15 that is disposed on the speed governor main body 14.
  • a speed governor rope 16 is wound around the speed governor sheave 15 and the tension sheave 13.
  • a first end portion and a second end portion of the speed governor rope 16 are connected to the operating arm 11.
  • the speed governor sheave 15 and the tension sheave 13 are thereby rotated together with movement of the car 8.
  • the speed governor main body 14 grips the speed governor rope 16 if rotational speed of the speed governor sheave 15 reaches a predetermined emergency overspeed.
  • the operating arm 11 is operated by the speed governor rope 18 being gripped by the speed governor main body 14 and the car 8 being displaced relative to the speed governor rope 16.
  • a cam (a detected body) 17 that is parallel to the direction of movement of the car 8 is disposed on a side surface of the car 8.
  • a predetermined lower end portion region that is positioned in a lower end portion (a terminal portion) of the hoistway 1 and a predetermined upper end portion region that is positioned in an upper end portion (a terminal portion) of the hoistway 1 are set inside the hoistway 1.
  • the lower end portion region and the upper end portion region are regions that have predetermined lengths in the direction of movement of the car 8.
  • a lower end car position detecting apparatus 18 that detects the presence or absence of the car 8 in the lower end portion region, and an upper end car position detecting apparatus 19 that detects the presence or absence of the car 8 in the upper end portion region are disposed inside the hoistway 1.
  • the lower end car position detecting apparatus 18 has a plurality of (in this example, three) lower portion position switches 18a, 18b, and 18c that can detect the cam 17.
  • Each of the lower portion position switches 18a through 18c is disposed in a lower portion inside the hoistway 1.
  • the lower portion position switches 18a through 18c are disposed so as to be spaced apart from each other in the direction of movement of the car 8.
  • the upper end car position detecting apparatus 19 has a plurality of (in this example, three) upper portion position switches 19a, 19b, and 19c that can detect the cam 17.
  • Each of the upper portion position switches 19a through 19c is disposed in a upper portion inside the hoistway 1.
  • the upper portion position switches 19a through 19c are disposed so as to be spaced apart from each other in the direction of movement of the car 8.
  • At least one of the lower portion position switches 18a through 18c is operated by the cam 17 when the car 8 is in the lower end portion region.
  • At least one of the upper portion position switches 19a through 19c is operated by the cam 17 when the car 8 is in the upper end portion region.
  • the respective lower portion position switches 18a through 18c and the respective upper portion position switches 19a through 19c detect the cam 17 by being operated by the cam 17.
  • the lower end car position detecting apparatus 18 detects the presence or absence of the car 8 in the lower end portion region by the presence or absence of detection of the cam 17 by the respective lower portion position switches 18a through 18c.
  • the upper end car position detecting apparatus 19 detects the presence or absence of the car 8 in the upper end portion region by the presence or absence of detection of the cam 17 by the respective upper portion position switches 19a through 19c.
  • the length of the cam 17 is longer than a spacing between the lower portion position switches 18a through 18c and between the upper portion position switches 19a through 19c.
  • the lower portion position switches 18a through 18c and the upper portion position switches 19a through 19c are connected in series by electric wires 20.
  • a car buffer 21 that is positioned below the car 8, and a counterweight buffer 22 that is positioned below the counterweight 9 are disposed in a bottom portion (a pit portion) of the hoistway 1.
  • the car buffer 21 relieves mechanical shock that is imparted to the car 8.
  • the counterweight buffer 22 relieves mechanical shock that is imparted to the counterweight 9.
  • Figure 2 is a longitudinal section that shows the speed governor 12 from Figure 1 .
  • Figure 3 is a longitudinal section that shows the speed governor 12 when the car 8 from Figure 1 is outside both a lower end portion region and an upper end portion region.
  • the speed governor 12 is supported by a supporting body 23. Also supported by the supporting body 23 together with the speed governor 12 are: a sheave interlocking device 24 that operates interdependently with rotation of the speed governor sheave 15; an overspeed detecting switch 25 that is operated by the sheave interlocking device 24, and that outputs a stopping signal that stops elevator operation upon being operated; and an electromagnetic displacing apparatus 26 that displaces the overspeed detecting switch 25.
  • a sheave shaft 27 of the speed governor sheave 15 is supported horizontally in the speed governor main body 14 by means of bearings 28.
  • a driving bevel gear 29 is fixed to an end portion of the sheave shaft 27.
  • the sheave interlocking device 24 has: a driven shaft 30 that is disposed so as to be parallel to a vertical direction; a driven bevel gear 31 that is fixed to a lower end portion of the driven shaft 30, and that intermeshes with the driving bevel gear 29; a displacing body 32 that is disposed on the driven shaft 30, and that is displaceable relative to the driven shaft 30 in a direction that is parallel to the driven shaft 30 (a predetermined direction); and a centrifugally displacing apparatus 33 that displaces the displacing body 32 in response to rotational speed of the driven shaft 30.
  • the driven shaft 30 is supported in the supporting body 23 by means of bearings 34. Rotation of the sheave shaft 27 is transmitted to the driven shaft 30 by means of the driving bevel gear 29 and the driven bevel gear 31. Consequently, the driven shaft 30 is rotated in response to the rotation of the speed governor sheave 15.
  • the centrifugally displacing apparatus 33 is disposed on an upper portion of the driven shaft 30.
  • the centrifugally displacing apparatus 33 is rotated together with the driven shaft 30.
  • the centrifugally displacing apparatus 33 has: a pair of arms 35 that can pivot relative to an upper end portion of the driven shaft 30; fly balls 36 that are disposed on leading end portions of the respective arms 35; a slipping cylinder 37 that is passed slidably over the driven shaft 30; linking members 38 that couple the respective arms 35 and the slipping cylinder 37; and a balancing spring 39 that forces the slipping cylinder 37 downward.
  • the fly balls 36 are subjected to a centrifugal force that corresponds to the rotational speed of the driven shaft 30, and are displaced in response to the centrifugal force that is received.
  • the slipping cylinder 37 is displaced in a direction that is parallel to the driven shaft 30 in response to the displacement of the fly balls 36. Specifically, when the rotational speed of the driven shaft 30 increases, the fly balls 36 are displaced away from each other, and the slipping cylinder 37 is displaced upward in opposition to force from the balancing spring 39. When the rotational speed of the driven shaft 30 decreases, the fly balls 36 are displaced toward each other, and the slipping cylinder 37 is displaced downward by the force from the balancing spring 39.
  • the displacing body 32 is displaceable together with the slipping cylinder 37.
  • the displacing body 32 is thereby displaced in a direction that is parallel to the driven shaft 30 in response to the rotational speed of the speed governor sheave 15.
  • the displacing body 32 is also rotatable relative to the slipping cylinder 37 and the driven shaft 30. Consequently, a state of the displacing body 32 is maintained without being rotated even if the slipping cylinder 37 and the driven shaft 30 are rotated.
  • the displacing body 32 has: a driven tube 40 that is passed slidably over the driven shaft 30; and an operating portion 41 that protrudes outward from an outer circumferential surface of the driven tube 40.
  • the overspeed detecting switch 25 is disposed radially outside the driven tube 40.
  • the overspeed detecting switch 25 is displaceable in the direction that the displacing body 32 is displaced (i.e., vertically) due to guidance by a guiding member 42 that is disposed on the supporting body 23.
  • the overspeed detecting switch 25 is displaceable between a predetermined first detecting position ( Figure 2 ), and a second detecting position ( Figure 3 ) that is positioned above the first detecting position.
  • the overspeed detecting switch 25 has: a switch main body 43; and a switch lever 44 that is disposed on the switch main body 43, and that projects outward toward the displacing body 32.
  • An operating portion 41 can operate the switch lever 44 by displacement of the displacing body 32 relative to the overspeed detecting switch 25.
  • the overspeed detecting switch 25 detects the displacing body 32 by the switch lever 44 being operated by the operating portion 41.
  • a stopping signal that stops elevator operation is output from the switch main body 43 on detection of the displacing body 32 by the overspeed detecting switch 25.
  • the control apparatus 6 controls elevator operation based on information from the overspeed detecting switch 25.
  • the control apparatus 6 determines that an abnormality has arisen in the speed of the car 8, and performs control that stops elevator operation.
  • the value of the speed of the car 8 when the overspeed detecting switch 25 detects the displacing body 32 is set so as to be at a predetermined first reference value that is lower than a value of rated speed for the elevator when the overspeed detecting switch 25 is in the first detecting position ( Figure 2 ), and be at a predetermined second reference value that is higher than the rated speed for the elevator (1.3 times the rated speed, for example) when the overspeed detecting switch 25 is in the second detecting position ( Figure 3 ).
  • the second reference value is a value that is lower than an emergency overspeed value at which the emergency stopper apparatus 10 acts.
  • the electromagnetic displacing apparatus 26 has: a forcing spring (a forcing body) 45 that forces the overspeed detecting switch 25 in a direction so as to be displaced to the first detecting position; a plunger 46 that is placed in contact with the switch main body 43; and an electromagnet 47 that displaces the plunger 46 in opposition to the force of the forcing spring 45 in a direction in which the overspeed detecting switch 25 is displaced to the second detecting position on receiving a supply of electric power.
  • a forcing spring (a forcing body) 45 that forces the overspeed detecting switch 25 in a direction so as to be displaced to the first detecting position
  • a plunger 46 that is placed in contact with the switch main body 43
  • an electromagnet 47 that displaces the plunger 46 in opposition to the force of the forcing spring 45 in a direction in which the overspeed detecting switch 25 is displaced to the second detecting position on receiving a supply of electric power.
  • the overspeed detecting switch 25 is displaced to the first detecting position by the supply of electric power to the electromagnet 47 being stopped.
  • the overspeed detecting switch 25 is displaced to the second detecting position in opposition to the force of the forcing spring 45 by electric power being supplied to the electromagnet 47.
  • Figure 4 is a circuit diagram that shows electrically connected states of the lower portion position switches 18a through 18c, the upper portion position switches 19a through 19c, and the electromagnet 47 from Figure 1 .
  • Figure 5 is a circuit diagram that shows a state in which cam detection by all of the lower portion position switches 18a through 18c and the upper portion position switches 19a through 19c from Figure 4 has stopped.
  • Figure 4 is a diagram that shows a state in which only two lower portion position switches 18a and 18b are detecting the cam 17.
  • the lower portion position switches 18a through 18c, the upper portion position switches 19a through 19c, and the coil of the electromagnet 47 are connected in series together with a direct current power supply 48 by the electric wires 20.
  • the lower portion position switches 18a through 18c and the upper portion position switches 19a through 19c each have a contact that opens and closes in response to the presence or absence of detection of the cam 17.
  • the contacts of the lower portion position switches 18a through 18c and the upper portion position switches 19a through 19c open on detection of the cam 17, and close when detection of the cam 17 stops.
  • the overspeed detecting switch 25 is displaced to the second detecting position by the electromagnetic displacing apparatus 26.
  • the overspeed detecting switch 25 is displaced to the first detecting position by the electromagnetic displacing apparatus 26.
  • the electromagnetic displacing apparatus 26 displaces the overspeed detecting switch 25 between the first detecting position and the second detecting position based on respective information from the lower end car position detecting apparatus 18 and the upper end car position detecting apparatus 19.
  • FIG 6 is a graph showing relationships between normal operating speed and car position and between shutdown speed and car position for the car 8 from Figure 1 .
  • a value of a shutdown speed 51 is a value that is higher than a normal operating speed 52 for the car 8 at all positions through which the car 8 moves.
  • the overspeed detecting switch 25 is displaced to the first detecting position ( Figure 2 ), and the value of the shutdown speed 51 becomes a first reference value V os1 .
  • the overspeed detecting switch 25 When the car 8 is in an intermediate portion inside the hoistway 1 outside both the lower end portion region and the upper end portion region, the overspeed detecting switch 25 is displaced to the second detecting position ( Figure 3 ), and the value of the shutdown speed 51 becomes a second reference value V os2 that is higher than the first reference value V os1 .
  • the first reference value V os1 is set so as to be lower than a rated speed value V 0
  • the second reference value V os2 is set so as to be greater than the rated speed value T 0 .
  • a stopping signal is sent to the control apparatus 6 from the overspeed detecting switch 25.
  • the control apparatus 6 receives the stopping signal, elevator operation is stopped forcibly by the control apparatus 6.
  • the value of the shutdown speed 51 is switched over from the first reference value to the second reference value by a reverse operation to the above.
  • the value of the shutdown speed can be set lower than a rated speed when the car 8 is in the lower end portion region or the upper end portion region.
  • elevator operation can be stopped at a stage when the speed of the car 8 is lower than the rated speed at positions close to terminal portions of the hoistway 1. Deceleration distance of the car 8 can thereby be shortened, enabling size reductions of the car buffer 21 and the counterweight buffer 22 to be achieved. Reductions in height dimensions of the hoistway 1 can also be achieved.
  • elevator apparatuses can be installed easily simply by adjusting the positions and number of lower portion position switches and upper portion position switches, even if each hoistway 1 has a different height.
  • the lower portion position switches 18a through 18c and the upper portion position switches 19a through 19c can be prevented from all being unable to detect the cam 17 when the car 8 is in the upper end portion region or the lower end portion region. The presence or absence of the car 8 in the lower end portion region or the upper end portion region can thereby be detected more reliably.
  • the first reference value V os1 is set so as to be lower than the rated speed value V 0 , but the first reference value V os1 may also be set so as to be greater than the rated speed value V 0 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP08710581.3A 2008-01-25 2008-01-25 Aufzugsvorrichtung Withdrawn EP2233423A4 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2008/051080 WO2009093330A1 (ja) 2008-01-25 2008-01-25 エレベータ装置

Publications (2)

Publication Number Publication Date
EP2233423A1 true EP2233423A1 (de) 2010-09-29
EP2233423A4 EP2233423A4 (de) 2014-04-30

Family

ID=40900848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08710581.3A Withdrawn EP2233423A4 (de) 2008-01-25 2008-01-25 Aufzugsvorrichtung

Country Status (5)

Country Link
EP (1) EP2233423A4 (de)
JP (1) JP5264786B2 (de)
KR (1) KR101044830B1 (de)
CN (1) CN101878175B (de)
WO (1) WO2009093330A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102367124A (zh) * 2011-06-28 2012-03-07 苏州新达电扶梯部件有限公司 一种限位撞弓架
EP2636626A4 (de) * 2010-11-01 2014-11-26 Mitsubishi Electric Corp Aufzugsvorrichtung
WO2015078859A1 (en) * 2013-11-29 2015-06-04 Inventio Ag Improvements in or relating to elevators

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2474498A1 (de) * 2009-09-02 2012-07-11 Mitsubishi Electric Corporation Aufzugsvorrichtung
CN102695666A (zh) * 2010-01-07 2012-09-26 三菱电机株式会社 电梯装置
JPWO2012017549A1 (ja) * 2010-08-06 2013-09-19 三菱電機株式会社 エレベータ用調速機
CN102344065A (zh) * 2011-06-28 2012-02-08 苏州新达电扶梯部件有限公司 一种极限限位装置
JP5753072B2 (ja) * 2011-12-21 2015-07-22 株式会社日立製作所 エレベーター装置
WO2013190869A1 (ja) 2012-06-19 2013-12-27 三菱電機株式会社 エレベータ装置
KR101920546B1 (ko) 2014-04-09 2018-11-20 미쓰비시덴키 가부시키가이샤 엘리베이터 장치
KR102343465B1 (ko) 2019-12-13 2021-12-28 현대엘리베이터주식회사 엘리베이터용 공력 개선 케이지

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6360847B1 (en) * 1999-05-17 2002-03-26 Mitsubishi Denki Kabushiki Kaisha Elevator system and speed governing apparatus
JP2003104646A (ja) * 2001-09-28 2003-04-09 Mitsubishi Electric Corp エレベータ装置及びその制御方法
EP1739046A1 (de) * 2004-04-20 2007-01-03 Mitsubishi Denki Kabushiki Kaisha Nothaltsystem für aufzug

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513346Y2 (de) * 1974-04-08 1980-03-26
JPS5513346A (en) 1978-07-15 1980-01-30 Matsushita Electric Works Ltd Opening*closing apparatus for openign of building
JP2001354372A (ja) * 2000-06-14 2001-12-25 Mitsubishi Electric Corp エレベーター装置
WO2006103768A1 (ja) * 2005-03-30 2006-10-05 Mitsubishi Denki Kabushiki Kaisha エレベータ装置
JP2008007322A (ja) * 2006-06-30 2008-01-17 Toshiba Elevator Co Ltd エレベータの終端階減速制御システム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6360847B1 (en) * 1999-05-17 2002-03-26 Mitsubishi Denki Kabushiki Kaisha Elevator system and speed governing apparatus
JP2003104646A (ja) * 2001-09-28 2003-04-09 Mitsubishi Electric Corp エレベータ装置及びその制御方法
EP1739046A1 (de) * 2004-04-20 2007-01-03 Mitsubishi Denki Kabushiki Kaisha Nothaltsystem für aufzug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009093330A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2636626A4 (de) * 2010-11-01 2014-11-26 Mitsubishi Electric Corp Aufzugsvorrichtung
CN102367124A (zh) * 2011-06-28 2012-03-07 苏州新达电扶梯部件有限公司 一种限位撞弓架
WO2015078859A1 (en) * 2013-11-29 2015-06-04 Inventio Ag Improvements in or relating to elevators

Also Published As

Publication number Publication date
KR101044830B1 (ko) 2011-06-28
EP2233423A4 (de) 2014-04-30
JPWO2009093330A1 (ja) 2011-05-26
KR20100061744A (ko) 2010-06-08
WO2009093330A1 (ja) 2009-07-30
CN101878175B (zh) 2012-09-26
JP5264786B2 (ja) 2013-08-14
CN101878175A (zh) 2010-11-03

Similar Documents

Publication Publication Date Title
EP2233423A1 (de) Aufzugsvorrichtung
EP2636626B1 (de) Aufzugsvorrichtung
US8261886B2 (en) Safety device for elevator and rope slip detection method
EP2695841B1 (de) Aufzugsvorrichtung
CN101090854B (zh) 电梯装置
US9637348B2 (en) Elevator apparatus
AU2007285644B2 (en) Elevator system
US8167094B2 (en) Elevator apparatus
KR101033393B1 (ko) 엘리베이터의 조속기
CN1950286B (zh) 电梯装置
EP2380841A1 (de) Aufzugsvorrichtung
EP2602222A1 (de) Aufzugsgeschwindigkeitsregler
WO2017094102A1 (ja) エレベータ装置
EP2383216A1 (de) Aufzugsvorrichtung
US9604819B2 (en) Elevator monitoring arrangement configured to monitor operation of a safety device of an elevator, a controller and method for performing same
EP2522613A1 (de) Aufzugsvorrichtung
EP2360112A1 (de) Sicherheitsschaltungsvorrichtung für aufzug
EP2474498A1 (de) Aufzugsvorrichtung
EP2130792A1 (de) Aufzugssteuersystem
CN101602457B (zh) 电梯装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20100428

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20140401

RIC1 Information provided on ipc code assigned before grant

Ipc: B66B 5/04 20060101ALI20140326BHEP

Ipc: B66B 5/06 20060101AFI20140326BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20141104