EP1832543A1 - Ascenseur - Google Patents

Ascenseur Download PDF

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Publication number
EP1832543A1
EP1832543A1 EP04807868A EP04807868A EP1832543A1 EP 1832543 A1 EP1832543 A1 EP 1832543A1 EP 04807868 A EP04807868 A EP 04807868A EP 04807868 A EP04807868 A EP 04807868A EP 1832543 A1 EP1832543 A1 EP 1832543A1
Authority
EP
European Patent Office
Prior art keywords
drive sheave
hoistway
car
counterweight
drive
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.)
Granted
Application number
EP04807868A
Other languages
German (de)
English (en)
Other versions
EP1832543A4 (fr
EP1832543B1 (fr
Inventor
Shiroh c/o Mitsubishi Denki K.K. IKEDA
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 EP1832543A1 publication Critical patent/EP1832543A1/fr
Publication of EP1832543A4 publication Critical patent/EP1832543A4/fr
Application granted granted Critical
Publication of EP1832543B1 publication Critical patent/EP1832543B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
    • B66B11/0484—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with a clutch or a coupling system between several motors, e.g. switching different speeds, progressive starting, torque limitation, flywheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0065—Roping
    • B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave

Definitions

  • the present invention relates to an elevator apparatus having a car and a counterweight that are raised/lowered within a hoistway.
  • two thin-type hoisting machines may be provided in an upper portion within a hoistway to achieve increase in capacity.
  • the thin-type hoisting machines face each other so as to sandwich a car on a vertical projection plane of the hoistway.
  • Different suspending ropes are looped around traction sheaves of the thin-type hoisting machines, respectively.
  • Each of the suspending ropes is connected at one end thereof to the car, and at the other end thereof to a counterweight.
  • the car and the counterweight are suspended within the hoistway by means of the suspending ropes, respectively.
  • two thin-type hoisting machines may be arranged side by side in an upper portion within a hoistway such that axes of traction sheaves extend parallel to each other.
  • a common suspending rope is looped around the traction sheaves of the thin-type hoisting machines, respectively.
  • the suspending rope is connected at one end thereof to a car, and at the other end thereof to a counterweight.
  • the suspending rope is looped around one of the traction sheaves, then around the other traction sheave, and around the aforementioned one of the traction sheaves again.
  • the suspending rope is looped around each of the traction sheaves according to a full-wrap roping method (see Patent Document 1).
  • Patent Document 1 JP 11-310372 A
  • the thin-type hoisting machines are arranged apart from each other on the vertical projection plane of the hoistway. Therefore, a space for installing the two thin-type hoisting machines is required in a horizontal direction, so the horizontal cross-sectional area of the hoistway increases.
  • the suspending rope is looped around each of the traction sheaves according to the full-wrapping method. Therefore, a life of the suspending rope is short.
  • the present invention has been made to solve the problems as described above, and it is therefore an object of the present invention to obtain an elevator apparatus which makes it possible to reduce a size of a hoistway and prolong a life of a main rope for suspending a car and a counterweight.
  • An elevator apparatus includes: a car and a counterweight that can be raised/lowered within a hoistway; a driving force generating unit having a thin-type first drive device, which includes a first drive sheave rotatable about a horizontally extending first rotational shaft, and a thin-type second drive device, which includes a second drive sheave rotatable about a second rotational shaft extending parallel to the first rotational shaft, and arranged outside both regions of the car and the counterweight on a vertical projection plane of the hoistway, for generating a driving force for raising/lowering the car and the counterweight within the hoistway; and a main rope body having a first main rope, which is looped around the first drive sheave while bypassing the second drive sheave, and a second main rope, which is looped around the second drive sheave while bypassing the first drive sheave, for suspending the car and the counterweight, characterized in that a part of the first drive device overlaps with a region of the second drive device on
  • Fig. 1 is a schematic diagram showing an elevator apparatus according to Embodiment 1 of the present invention.
  • Fig. 2 is a plan view showing the elevator apparatus of Fig. 1.
  • Fig. 3 is a lateral view showing an essential part of the elevator apparatus of Fig. 1.
  • a car 2 and a counterweight 3 are provided within a hoistway 1 such that they can be raised/lowered, respectively.
  • a front face of the car 2 is provided with a car doorway 4.
  • the car 2 and the counterweight 3 are arranged side by side within the hoistway 1 in a depth direction thereof (direction perpendicular to the front face of the car 2 on a horizontal plane) on a vertical projection plane of the hoistway 1 . That is, the elevator apparatus according to Embodiment 1 of the present invention is designed as an elevator apparatus of a counterweight back fall type with a structure in which the counterweight 3 is raised/lowered on a back face side of the car 2.
  • a driving force generating unit 5 for generating a driving force for raising/lowering the car 2 and the counterweight 3 is provided in a lower portion within the hoistway 1.
  • the driving force generating unit 5 is arranged outside regions of the car 2 and the counterweight 3, respectively, on the vertical projection plane of the hoistway 1.
  • the driving force generating unit 5 is arranged between an inner wall surface of the hoistway 1 and the car 2 on the vertical projection plane of the hoistway 1 (Fig. 2).
  • the driving force generating unit 5 has a first hoisting machine (first drive device) 6, and a second hoisting machine (second drive device) 7 arranged above the first hoisting machine 6.
  • the first hoisting machine 6 has a first drive device body 9 including a horizontally extending first rotational shaft 8, and a first drive sheave 10 provided on the first rotational shaft 8 to be rotatable about the first rotational shaft 8.
  • the first drive sheave 10 is rotated integrally with the first rotational shaft 8 owing to a driving force of the first drive device body 9.
  • the first hoisting machine 6 is a flat, thin-type hoisting machine having a radial dimension that is larger than an axial dimension.
  • the second hoisting machine 7 has a second drive device body 12 including a horizontally extending second rotational shaft 11, and a second drive sheave 13 provided on the second rotational shaft 11 to be rotatable about the second rotational shaft 11.
  • the second drive sheave 13 is rotated integrally with the second rotational shaft 11 owing to a driving force of the second drive device body 12.
  • the second hoisting machine 7 is a flat, thin-type hoisting machine having a radial dimension that is larger than an axial dimension.
  • the first hoisting machine 6 and the second hoisting machine 7 are arranged within the hoistway 1 such that the first rotational shaft 8 and the second rotational shaft 11 extend parallel to each other.
  • the first hoisting machine 6 and the second hoisting machine 7 are arranged offset from each other in an axial direction of the first and the second rotational shafts 8, 11. Further, a part of the first hoisting machine 6 overlaps with a region of the second hoisting machine 7 on the vertical projection plane of the hoistway 1.
  • the first drive sheave 10 is arranged outside the region of the second hoisting machine 7 on the vertical projection plane of the hoistway 1. That is, the first hoisting machine 6 is arranged offset from the second hoisting machine 7 on the vertical projection plane of the hoistway 1 such that the first drive sheave 10 is located outside the region of the second hoisting machine 7.
  • a plurality of first main ropes 14 are looped around the first drive sheave 10.
  • a plurality of second main ropes 15 are looped around the second drive sheave 13.
  • a main rope body 16 has the first main ropes 14 and the second main ropes 15. The car 2 and the counterweight 3 are suspended within the hoistway 1 by means of the main rope body 16.
  • a car-side return pulley 17 and a pair of counterweight-side return pulleys 18 around which the main rope body 16 is looped, respectively, are provided in an upper portion within the hoistway 1.
  • the car-side return pulley 17 and the counterweight-side return pulleys 18 are arranged above the driving force generating unit 5.
  • a car-side rope fastening device 19 to which one end of the main rope body 16 is connected and a counterweight-side rope fastening device 20 to which the other end of the main rope body 16 is connected are provided in the upper portion within the hoistway 1.
  • a pair of car suspending pulleys 21 around which the main rope body 16 is looped are provided on a lower portion of the car 2.
  • a counterweight suspending pulley 22 around which the main rope body 16 is looped is provided on an upper portion of the counterweight 3.
  • Each of the first main ropes 14 is connected at one end thereof to the car-side rope fastening device 19, and at the other end of the first main ropes 14 to the counterweight-side rope fastening device 20.
  • Each of the first main ropes 14, which extends from the car-side rope fastening device 19 to the counterweight-side rope fastening device 20, is sequentially looped around the respective car suspending pulleys 21, the car-side return pulley 17, the first drive sheave 10, the respective counterweight-side return pulleys 18, and the counterweight suspending pulley 22. That is, the first main ropes 14 are stretched within the hoistway 1 while bypassing the second drive sheave 13. Since the second hoisting machine 7 is arranged offset from the first hoisting machine 6, the first main ropes 14 looped around the first drive sheave 10 are prevented from interfering with the second hoisting machine 7.
  • Each of the second main ropes 15 is connected at one end thereof to the car-side rope fastening device 19, and at the other end of the second main ropes 15 to the counterweight-side rope fastening device 20.
  • Each of the second main ropes 15, which extends from the car-side rope fastening device 19 to the counterweight-side rope fastening device 20 is sequentially looped around the respective car suspending pulleys 21, the car-side return pulley 17, the second drive sheave 13, the respective counterweight-side return pulleys 18, and the counterweight suspending pulley 22. That is, the respective second main ropes 15 are stretched within the hoistway 1 while bypassing the first drive sheave 10.
  • the car 2 and the counterweight 3 are suspended within the hoistway 1 by means of the first main ropes 14 and the second main ropes 15, which are looped around the respective sheaves according to a 2:1 roping method.
  • a control device (not shown) for controlling operation of an elevator is electrically connected to the driving force generating unit 5.
  • the first hoisting machine 6 and the second hoisting machine 7 are controlled by the control device such that the first drive sheave 10 and the second drive sheave 13 rotate in synchronization with each other.
  • the first drive sheave 10 and the second drive sheave 13 are rotated in synchronization with each other owing to the control of the first hoisting machine 6 and the second hoisting machine 7 by the control device.
  • the, respectively, first main ropes 14, respectively, and the second main ropes 15, respectively, are moved, so the car 2 and the counterweight 3 are raised/lowered within the hoistway 1.
  • the main rope body 16 for suspending the car 2 and the counterweight 3 has the first main ropes 14 looped around the first drive sheave 10 of the first hoisting machine 6 while bypassing the second drive sheave 13 of the second hoisting machine 7, and the second main ropes 15 looped around the second drive sheave 13 while bypassing the first drive sheave 10.
  • the part of the first hoisting machine 6 overlaps with the region of the second hoisting machine 7 on the vertical projection plane of the hoistway 1, and the first drive sheave 10 is arranged outside the region of the second hoisting machine 7.
  • the second hoisting machine 7 does not intersect a vertical space of the first drive sheave 10, so the first main ropes 14 can be prevented from interfering with the second hoisting machine 7.
  • the number of sheaves for turning the first main ropes 14 can also be prevented from increasing.
  • first main ropes 14 and the second main ropes 15 are looped around the first drive sheave 10 and the second drive sheave 13 according to a normal single-lap roping method (which is not the full-wrap roping method), so the life of each of the first main ropes 14 and the second main ropes 15 can also be prolonged.
  • the driving force generating unit 5 is provided in the lower portion within the hoistway 1 in the foregoing example, it is also appropriate that the driving force generating unit 5 be provided in the upper portion within the hoistway 1.
  • the first hoisting machine 6 is arranged above the second hoisting machine 7 and offset from the second hoisting machine 7 such that the first drive sheave 10 is arranged outside the region of the second hoisting machine 7 on the vertical projection plane of the hoistway 1.
  • Fig. 4 is a schematic diagram showing an elevator apparatus according to Embodiment 2 of the present invention.
  • Fig. 5 is a plan view showing the elevator apparatus of Fig. 4.
  • Fig. 6 is a lateral view showing an essential part of the elevator apparatus of Fig. 4.
  • the car 2 and the counterweight 3 are arranged side by side within the hoistway 1 in a width direction (direction of a frontage of the car doorway 4) of the hoistway 1 on the vertical projection plane of the hoistway 1. That is, the elevator apparatus according to Embodiment 2 of the present invention is designed as an elevator apparatus of a counterweight lateral fall type with a structure in which the counterweight 3 is raised/lowered on a lateral face side of the car 2.
  • the driving force generating unit 5 is arranged outside the regions of the car 2 and the counterweight 3 on the vertical projection plane of the hoistway 1.
  • the driving force generating unit 5 is arranged between the region of the car 2 and the region of the counterweight 3 on the vertical projection plane of the hoistway 1.
  • the driving force generating unit 5 has the second hoisting machine 7, and a flat, thin-type first hoisting machine 31, which is arranged below the second hoisting machine 7 and has a radial dimension that is larger than an axial dimension.
  • the first hoisting machine 31 has a first drive device body 33 including a horizontally extending first rotational shaft 32, and a first drive sheave 34 provided on the first rotational shaft 32 to be rotatable about the first rotational shaft 32.
  • the first drive sheave 34 is rotated integrally with the first rotational shaft 32 owing to a driving force of the first drive device body 33.
  • the first hoisting machine 31 is arranged within the hoistway 1 such that the first rotational shaft 32 extends parallel to the second rotational shaft 11.
  • the second hoisting machine 7 is arranged within a region of the first hoisting machine 31 on the vertical projection plane of the hoistway 1.
  • the first drive sheave 34 has a larger outer diameter than the second drive sheave 13. A part of the first drive sheave 34 overlaps with a region of the second drive sheave 13 on the vertical projection plane of the hoistway 1.
  • the second drive sheave 13 is arranged between radial ends of the first drive sheave 34 on the vertical projection plane of the hoistway 1.
  • the second drive sheave 13 is arranged within a region of the first drive sheave 34 on the vertical projection plane of the hoistway 1.
  • the first main ropes 14 are looped around the first drive sheave 34 while bypassing the second drive sheave 13. Since the second drive sheave 13 is arranged between the radial ends of the first drive sheave 34 on the vertical projection plane of the hoistway 1, the first main ropes 14 looped around the first drive sheave 34 are prevented from interfering with the second drive sheave 13.
  • Embodiment 2 of the present invention is identical to Embodiment 1 of the present invention in other constructional details.
  • the first drive sheave 34 is larger in outer diameter than the second drive sheave 13, the part of the first drive sheave 34 overlaps with the region of the second drive sheave 13 on the vertical projection plane of the hoistway 1, and the second drive sheave 13 is arranged between the radial ends of the first drive sheave 34 on the vertical projection plane of the hoistway 1. Therefore, the first hoisting machine 31 and the second hoisting machine 7 can be prevented from interfering with the main rope body 16 without increasing the number of sheaves for turning the main rope body 16.
  • Parts of the regions of the first drive sheave 34 and the second drive sheave 13, respectively, are partially shared in the horizontal direction on the vertical projection plane of the hoistway 1, so the horizontal cross-sectional area of the hoistway 1 can further be reduced. Accordingly, the hoistway 1 can further be reduced in size.
  • the second hoisting machine 7 is arranged within the region of the first hoisting machine 31 on the vertical projection plane of the hoistway 1, so the area of a common portion of the first hoisting machine 31 and the second hoisting machine 7 in the horizontal direction can further be increased.
  • the horizontal cross-sectional area of the hoistway 1 can further be reduced, and the hoistway 1 can further be reduced in size.
  • the driving force generating unit 5 is provided in the lower portion within the hoistway 1 in the foregoing example, it is also appropriate that the driving force generating unit 5 be provided in the upper portion within the hoistway 1.
  • the first hoisting machine 31 is arranged above the second hoisting machine 7.
  • the car 2 and the counterweight 3 are suspended according to the 2:1 roping method in the foregoing embodiments, respectively, of the present invention, it is also appropriate that the car 2 and the counterweight 3 be suspended according to a 1:1 roping method.
  • the main rope body 16 is directly connected at one end of the main rope body 16 and the other end of the main rope body 16 to the car 2 and the counterweight 3, respectively.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP04807868.7A 2004-12-27 2004-12-27 Ascenseur Expired - Lifetime EP1832543B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/019513 WO2006070437A1 (fr) 2004-12-27 2004-12-27 Ascenseur

Publications (3)

Publication Number Publication Date
EP1832543A1 true EP1832543A1 (fr) 2007-09-12
EP1832543A4 EP1832543A4 (fr) 2012-04-25
EP1832543B1 EP1832543B1 (fr) 2014-03-26

Family

ID=36614564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04807868.7A Expired - Lifetime EP1832543B1 (fr) 2004-12-27 2004-12-27 Ascenseur

Country Status (4)

Country Link
EP (1) EP1832543B1 (fr)
JP (1) JP4694507B2 (fr)
CN (1) CN1938212B (fr)
WO (1) WO2006070437A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8584806B2 (en) 2007-07-20 2013-11-19 Kone Corporation Elevator and elevator arrangement
WO2014142979A1 (fr) * 2013-03-15 2014-09-18 Otis Elevator Company Poulies à gorge asymétriques et dirigées pour systèmes d'ascenseur à courroies multiples torsadées
RU2535956C2 (ru) * 2009-03-16 2014-12-20 Отис Элевэйтор Компани Конфигурация лифтовых приводных механизмов

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5554254B2 (ja) * 2011-01-27 2014-07-23 株式会社日立製作所 エレベータ
JP5566958B2 (ja) * 2011-06-22 2014-08-06 株式会社日立製作所 エレベータシステム
WO2015025397A1 (fr) * 2013-08-22 2015-02-26 三菱電機株式会社 Dispositif d'ascenseur
WO2015125288A1 (fr) * 2014-02-24 2015-08-27 株式会社日立製作所 Dispositif d'ascenseur
EP3947237B1 (fr) 2019-03-27 2024-01-10 Inventio Ag Dispositif de montage, procédé de mise en oeuvre d'un processus d'installation dans une cage d'ascenseur d'une installation d'ascenseur
CN115744555B (zh) * 2022-11-21 2025-12-16 上海三菱电梯有限公司 双对重电梯装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1837643A (en) * 1931-03-28 1931-12-22 Otis Elevator Co Elevator system
FI100791B (fi) * 1995-06-22 1998-02-27 Kone Oy Vetopyörähissi
JPH1077171A (ja) * 1996-09-04 1998-03-24 Toshiba Corp エレベータ用巻上装置
JPH11310372A (ja) * 1998-04-28 1999-11-09 Toshiba Elevator Co Ltd エレベータ装置
JP3489578B2 (ja) * 1999-12-06 2004-01-19 三菱電機株式会社 エレベーター装置
JP4110096B2 (ja) * 2002-03-01 2008-07-02 三菱電機株式会社 エレベータ装置
FI119242B (fi) * 2002-05-28 2008-09-15 Kone Corp Menetelmä hissin tekemiseksi ja hissin toimitusjärjestelmä
JP4258178B2 (ja) * 2002-07-17 2009-04-30 株式会社日立製作所 エレベーター装置
CN100333991C (zh) * 2003-02-13 2007-08-29 三菱电机株式会社 电梯装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8584806B2 (en) 2007-07-20 2013-11-19 Kone Corporation Elevator and elevator arrangement
RU2535956C2 (ru) * 2009-03-16 2014-12-20 Отис Элевэйтор Компани Конфигурация лифтовых приводных механизмов
WO2014142979A1 (fr) * 2013-03-15 2014-09-18 Otis Elevator Company Poulies à gorge asymétriques et dirigées pour systèmes d'ascenseur à courroies multiples torsadées
US9643819B2 (en) 2013-03-15 2017-05-09 Otis Elevator Company Asymmetric and steered sheaves for twisted multi-belt elevator systems
US9932205B2 (en) 2013-03-15 2018-04-03 Otis Elevator Company Asymmetric and steered sheaves for twisted multi-belt elevator systems

Also Published As

Publication number Publication date
CN1938212A (zh) 2007-03-28
JPWO2006070437A1 (ja) 2008-06-12
EP1832543A4 (fr) 2012-04-25
CN1938212B (zh) 2011-02-02
EP1832543B1 (fr) 2014-03-26
JP4694507B2 (ja) 2011-06-08
WO2006070437A1 (fr) 2006-07-06

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