EP2022743A1 - Dispositif d'ascenseur - Google Patents

Dispositif d'ascenseur Download PDF

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Publication number
EP2022743A1
EP2022743A1 EP06780622A EP06780622A EP2022743A1 EP 2022743 A1 EP2022743 A1 EP 2022743A1 EP 06780622 A EP06780622 A EP 06780622A EP 06780622 A EP06780622 A EP 06780622A EP 2022743 A1 EP2022743 A1 EP 2022743A1
Authority
EP
European Patent Office
Prior art keywords
pulley
hoistway
counterweight
weight
deflector
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Withdrawn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
EP06780622A
Other languages
German (de)
English (en)
Other versions
EP2022743A4 (fr
Inventor
Eiji Ando
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 EP2022743A1 publication Critical patent/EP2022743A1/fr
Publication of EP2022743A4 publication Critical patent/EP2022743A4/fr
Withdrawn legal-status Critical Current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
    • B66B11/001—Arrangement of controller, e.g. location
    • B66B11/002—Arrangement of controller, e.g. location in the hoistway
    • B66B11/003—Arrangement of controller, e.g. location in the hoistway on the counterweight
    • 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
    • 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
    • B66B11/009—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave with separate traction and suspension ropes
    • 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
    • B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables

Definitions

  • the present invention relates to an elevator apparatus having a main rope for suspending a car and a counterweight, and a drive rope for transmitting a driving force of a drive device to the counterweight to raise/lower the car and the counterweight.
  • an elevator apparatus structured to move a drive rope that is different from a main rope for suspending the car and the counterweight.
  • a weight-side sheave is mounted on the counterweight, and a plurality of hoistway-side sheaves are disposed in an upper portion of a hoistway and a lower portion of the hoistway.
  • the drive rope is looped around the weight-side sheave and the hoistway-side sheaves.
  • One end of the drive rope is connected to the upper portion of the hoistway, and a tension weight for applying a tensile force to the drive rope is suspended at the other end of the drive rope.
  • Patent Document 1 International Publication 02/094701 ' Pamphlet
  • the tension weight applies the tensile force to the drive rope, so a space for disposition of the tension weight is required. Accordingly, the space of the hoistway cannot be saved with ease, so the elevator apparatus is increased in size.
  • the present invention has been made to solve the above-mentioned problem, and it is therefore an obj ect of the present invention to provide an elevator apparatus enabling downsizing thereof.
  • An elevator apparatus includes: a car and a counterweight that can be raised/lowered within a hoistway; a displacement body provided on the counterweight and displaceable with respect to the counterweight; a main rope connected to the displacement body, for suspending the car and the counterweight; a weight-side fixed pulley provided on the counterweight; a weight-side movable pulley provided on the displacement body and displaced away from the weight-side fixed pulley through displacement of the displacement body with respect to the counterweight resulting from pulling of the displacement body by the main rope; a hoistway-side upper return pulley provided in a upper portion of the hoistway; a hoistway-side lower return pulley provided in a lower portion of the hoistway; a drive rope having one end and the other end that are connected to the counterweight, looped in succession around the hoistway-side upper return pulley, the weight-side fixed pulley, the weight-side movable pulley, and the hoistway-side lower return pull
  • Fig. 1 is a lateral view showing an elevator apparatus according to Embodiment 1 of the present invention.
  • Fig. 2 is a top view showing the elevator apparatus of Fig. 1 .
  • a car 2 and a counterweight 3 are provided within a hoistway 1 in a manner allowing the car 2 and the counterweight 3 to be raised/lowered.
  • a pair of main rope return pulleys 4 and 5 are provided in an upper portion of the hoistway 1.
  • a plurality of main ropes 6 are looped around the main rope return pulleys 4 and 5. The car 2 and the counterweight 3 are suspended within the hoistway 1 by the main ropes 6.
  • the counterweight 3 is provided with a displacement body 7 that is displaceable vertically with respect to the counterweight 3, and a weight-side fixed pulley 8 that is fixed in position with respect to the counterweight 3.
  • the displacement body 7 has a turning lever 10 that is turnable around a first horizontal shaft 9 mounted on the counterweight 3, and a main rope connection member 12 that is turnable around a second horizontal shaft 11 mounted at a tip of the turning lever 10 (end of turning lever 10 on the other side of first horizontal shaft 9 side).
  • Each of the main ropes 6 is connected at one end thereof to the main rope connection member 12, and at the other end thereof to an upper portion of the car 2. Accordingly, the displacement body 7 receives from each of the main ropes 6 a force serving to displace the displacement body 7 upward with respect to the counterweight 3 (force serving to pull up displacement body 7 with respect to counterweight 3). That is, the displacement body 7 is pulled by the main ropes 6 to be displaced upward with respect to the counterweight 3.
  • the displacement body 7 is provided with a weight-side movable pulley 13 that is rotatable around the second horizontal shaft 11.
  • the weight-side movable pulley 13 is disposed above the weight-side fixed pulley 8. Accordingly, when the displacement body 7 is pulled by the main ropes 6 to be displaced upward with respect to the counterweight 3, the weight-side movable pulley 13 is thereby displaced away from the weight-side fixed pulley 8.
  • a drive device 14 for generating a driving force for raising/lowering the car 2 and the counterweight 3, and a hoistway-side upper return pulley 15 provided on the drive device 14 are provided in the upper portion of the hoistway 1.
  • the drive device 14 is disposed above the counterweight 3.
  • the drive device 14 is designed as a low-profile hoisting machine with an axial dimension smaller than a radial dimension.
  • the hoistway-side upper return pulley 15 is rotated around an upper rotary shaft disposed horizontally, due to the driving force of the drive device 14.
  • a hoistway-side lower return pulley 16 is provided in a lower portion of the hoistway 1.
  • the hoistway-side lower return pulley 16 is rotatable around a lower rotary shaft disposed horizontally.
  • the drive rope 17 is designed as a resin-coated rope having an outer layer coated with resin.
  • the drive rope 17 has one end 17a connected to an upper portion of the counterweight 3, and the other end 17b connected to a lower portion of the counterweight 3.
  • the displacement body 7 is constantly urged to be pulled up with respect to the counterweight 3 through the suspension of the car 2 and the counterweight 3 by the main ropes 6. Thus; the displacement body 7 is displaced upward with respect to the counterweight 3, and the weight-side movable pulley 13 is displaced away from the weight-side fixed pulley 8. A tensile force is applied to the drive rope 17 through displacement of the weight-side movable pulley 13 away from the weight-side fixed pulley 8. Thus, a frictional force is secured between each of the weight-side fixed pulley 8, the weight-side movable pulley 13, the hoistway-side upper return pulley 15, and the hoistway-side lower return pulley 16 and the drive rope 17.
  • the main rope return pulleys 4 and 5, the drive device 14, and the hoistway-side upper return pulley 15 are supported by a support pedestal 18 fixed to the upper portion of the hoistway 1.
  • the drive device 14 is designed as a low-profile hoisting machine, so the space for installation of the drive device 14 can be reduced. As a result, the elevator apparatus can further be downsized.
  • the drive rope 17 is designed as a resin-coated rope coated with resin, so the coefficient of friction between each of the weight-side fixed pulley 8, the weight-side movable pulley 13, the hoistway-side upper return pulley 15, and the hoistway-side lower return pulley 16 and the drive rope 17 can be enhanced.
  • the drive rope 17 can be prevented from slipping with respect to each of the pulleys 8, 13, 15, and 16.
  • the curving performance of the drive rope 17 can also be improved. Therefore, for example, the outer diameter of each of the pulleys 8, 13, 15, and 16 can be reduced, so the space of the hoistway 1 can further be saved.
  • That portion of the drive rope 17 which is looped around the weight-side fixed pulley 8 and that portion of the drive rope 17 which is looped around the weight-side movable pulley 13 are curved in opposite directions, so the weight-side fixed pulley 8 and the weight-side movable pulley 13 can be disposed on the same plane. As a result, the space for installation of the weight-side fixed pulley 8 and the weight-side movable pulley 13 can be reduced.
  • the hoistway-side upper return pulley 15 is directly rotated due to the driving force of the drive device 14
  • the hoistway-side lower return pulley 16 may be directly rotated due to the driving force of the drive device 14.
  • the drive device 14 is disposed in the lower portion of the hoistway 1.
  • the hoistway-side lower return pulley 16 is provided on the drive device 14.
  • the main rope connection member 12 is displaced vertically with respect to the counterweight 3 through the turning of the turning lever 10
  • the main rope connection member 12 may be displaced vertically with respect to the counterweight 3 by providing the counterweight 3 with a guide member for guiding the main rope connection member 12.
  • each of the main ropes 6 may also be designed as a resin-coated rope.
  • Embodiment 2
  • Fig. 3 is a lateral view showing an elevator apparatus according to Embodiment 2 of the present invention.
  • Fig. 4 is a top view showing the elevator apparatus of Fig. 3 .
  • a first deflector pulley 21 and a second deflector pulley 22 which are disposed horizontally apart from each other, are provided in the upper portion of the hoistway 1.
  • the first deflector pulley 21 and the second deflector pulley 22 are disposed above the counterweight 3.
  • Each of the first deflector pulley 21 and the second deflector pulley 22 is rotatable around a rotary shaft disposed horizontally.
  • the first deflector pulley 21 and the second deflector pulley 22 are supported by the support pedestal 18.
  • the hoistway-side upper return pulley 15 is disposed horizontally apart from each of the first deflector pulley 21 and the second deflector pulley 22.
  • the hoistway-side upper return pulley 15 is rotatable around a rotary shaft disposed vertically.
  • the drive device 14 is disposed below the hoistway-side upper return pulley 15.
  • the drive device 14 is disposed such that the radial direction thereof extends horizontally. That is, the drive device 14 is leveled.
  • the drive device 14 and the hoistway-side upper return pulley 15 are disposed above the car 2.
  • At least one of the main rope return pulleys 4 and 5, the first deflector pulley 21, and the second deflector pulley 22 has an upper end located higher than that of each of the drive device 14 and the hoistway-side upper return pulley 15. At least one of the main rope return pulleys 4 and 5, the first deflector pulley 21, and the second deflector pulley 22 has a lower end located lower than that of each of the drive device 14 and the hoistway-side upper return pulley 15.
  • each of the main rope return pulleys 4 and 5 is located higher than the drive device 14 and the hoistway-side upper return pulley 15, and the lower end of each of the first deflector pulley 21 and the second deflector pulley 22 is located lower than the drive device 14 and the hoistway-side upper return pulley 15.
  • Embodiment 2 of the present invention is identical to Embodiment 1 of the present invention in other constructional details.
  • the first deflector pulley 21 and the second deflector pulley 22 are provided in the upper portion of the hoistway 1, the hoistway-side upper return pulley 15, which is rotatable around the rotary shaft disposed vertically, is disposed horizontally apart from the first deflector pulley 21 and the second deflector pulley 22, and the drive rope 17 is looped in succession around the first deflector pulley 21, the hoistway-side upper return pulley 15, and the second deflector pulley 22 in this order. Therefore, the same effect as in Embodiment 1 of the present invention is achieved. Also, the hoistway-side upper return pulley 15 can be disposed horizontally, so the height dimension of the hoistway 1 can further be reduced.
  • the upper end of at least one of the main rope return pulleys 4 and 5, the first deflector pulley 21, and the second deflector pulley 22 is located higher than that of each of the drive device 14 and the hoistway-side upper return pulley 15, and the lower end of at least one of the main rope return pulleys 4 and 5, the first deflector pulley 21, and the second deflector pulley 22 is located lower than that of each of the drive device 14 and the hoistway-side upper return pulley 15. Therefore, the height dimension of the hoistway 1 can be prevented from being increased due to disposition of the drive device 14 and the hoistway-side upper return pulley 15 in the upper portion of the hoistway 1.
  • That portion of the drive rope 17 which is looped around the weight-side fixed pulley 8 and that portion of the drive rope 17 which is looped around the weight-side movable pulley 13 are curved in the same direction, so the life of the drive rope 17 can be prolonged.

Landscapes

  • 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)
EP06780622.4A 2006-06-01 2006-06-01 Dispositif d'ascenseur Withdrawn EP2022743A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/310988 WO2007138706A1 (fr) 2006-06-01 2006-06-01 Dispositif d'ascenseur

Publications (2)

Publication Number Publication Date
EP2022743A1 true EP2022743A1 (fr) 2009-02-11
EP2022743A4 EP2022743A4 (fr) 2013-04-10

Family

ID=38778234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06780622.4A Withdrawn EP2022743A4 (fr) 2006-06-01 2006-06-01 Dispositif d'ascenseur

Country Status (5)

Country Link
EP (1) EP2022743A4 (fr)
JP (1) JPWO2007138706A1 (fr)
KR (1) KR100975689B1 (fr)
CN (1) CN101356110B (fr)
WO (1) WO2007138706A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20110112A1 (it) * 2011-05-27 2012-11-28 A R E S R L Dispositivo di trazione per elevatori
EP3168181A4 (fr) * 2014-07-07 2018-04-25 Mac Puar, S.A. Système de traction ayant des dimensions réduites pour des ascenseurs

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5170533B2 (ja) 2008-01-24 2013-03-27 日本電気株式会社 無線伝送装置、変調方式決定方法及びそのプログラム
EP2607283B1 (fr) * 2010-08-20 2018-10-17 Mitsubishi Electric Corporation Dispositif d'ascenseur
CN111675072B (zh) * 2020-06-10 2022-10-04 安徽建筑大学 一种配重自适应节能电梯

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002338163A (ja) * 2001-04-27 2002-11-27 Otis Elevator Co カウンタウエイト駆動エレベータ
US20030155185A1 (en) * 2001-03-08 2003-08-21 Masami Nomura Elevator
EP1595840A1 (fr) * 2003-02-19 2005-11-16 Mitsubishi Denki Kabushiki Kaisha Ascenseur
WO2006021996A1 (fr) * 2004-08-25 2006-03-02 Mitsubishi Denki Kabushiki Kaisha Appareil élévateur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052996B2 (ja) * 1982-04-12 1985-11-22 株式会社日立製作所 エレベ−タ−駆動装置
DE9201374U1 (de) * 1992-02-05 1992-04-02 C. Haushahn GmbH & Co, 7000 Stuttgart Seilspannsystem für Aufzüge
JP2000063057A (ja) * 1998-06-08 2000-02-29 Meidensha Corp エレベータ
WO2002094701A1 (fr) 2001-05-24 2002-11-28 Mitsubishi Denki Kabushiki Kaisha Appareil de levage
CN100513286C (zh) * 2004-08-27 2009-07-15 三菱电机株式会社 电梯装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030155185A1 (en) * 2001-03-08 2003-08-21 Masami Nomura Elevator
JP2002338163A (ja) * 2001-04-27 2002-11-27 Otis Elevator Co カウンタウエイト駆動エレベータ
EP1595840A1 (fr) * 2003-02-19 2005-11-16 Mitsubishi Denki Kabushiki Kaisha Ascenseur
WO2006021996A1 (fr) * 2004-08-25 2006-03-02 Mitsubishi Denki Kabushiki Kaisha Appareil élévateur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007138706A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20110112A1 (it) * 2011-05-27 2012-11-28 A R E S R L Dispositivo di trazione per elevatori
EP3168181A4 (fr) * 2014-07-07 2018-04-25 Mac Puar, S.A. Système de traction ayant des dimensions réduites pour des ascenseurs

Also Published As

Publication number Publication date
WO2007138706A1 (fr) 2007-12-06
KR20080072715A (ko) 2008-08-06
EP2022743A4 (fr) 2013-04-10
KR100975689B1 (ko) 2010-08-12
JPWO2007138706A1 (ja) 2009-10-01
CN101356110B (zh) 2010-07-14
CN101356110A (zh) 2009-01-28

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