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EP1754681A1 - Appareillage d'ascenseur - Google Patents

Appareillage d'ascenseur Download PDF

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Publication number
EP1754681A1
EP1754681A1 EP04745690A EP04745690A EP1754681A1 EP 1754681 A1 EP1754681 A1 EP 1754681A1 EP 04745690 A EP04745690 A EP 04745690A EP 04745690 A EP04745690 A EP 04745690A EP 1754681 A1 EP1754681 A1 EP 1754681A1
Authority
EP
European Patent Office
Prior art keywords
car
sheave
counterweight
suspending
shaft
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Withdrawn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
EP04745690A
Other languages
German (de)
English (en)
Other versions
EP1754681A4 (fr
Inventor
Shigeru 2c/o Mitsubishi Denki K. K. ABE
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 EP1754681A1 publication Critical patent/EP1754681A1/fr
Publication of EP1754681A4 publication Critical patent/EP1754681A4/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Withdrawn legal-status Critical Current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
    • B66B11/0065—Roping
    • B66B11/008—Roping 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
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway

Definitions

  • the present invention relates to a traction elevator apparatus of a 3:1 roping system in which an elevator car and a counterweight are suspended by a main rope.
  • the vertically projected area of a machine room installed above an elevator shaft is made almost the same as the vertically projected area of the shaft, or equipment that has conventionally been installed in the machine room is arranged in the shaft to make the installation of machine room unnecessary, by which space saving is achieved.
  • the space saving of elevator apparatus imposes a significant limitation on the layout and installation position of equipment used, so that driving torque cannot be increased by installing a large-size traction machine, which results in a difficulty in increasing the capacity of elevator apparatus.
  • a method for increasing the capacity of elevator apparatus a method in which the capacity is increased by a roping system of main rope suspending the elevator car and the counterweight is conceivable in addition to a method in which the driving torque of traction machine is increased.
  • a traction elevator apparatus in which the car and counterweight are suspended by a 4:1 roping system has been disclosed.
  • the driving torque necessary for the traction machine can be decreased, for example, to one-fourth for a 1:1 roping system or to a half for a 2:1 roping system.
  • a high-capacity elevator apparatus can be realized without installing a large-size traction machine.
  • the travel distance of main rope increases significantly as compared with the travel distance of car, and hence the number of suspending sheaves and reversing sheaves for turning around the main rope increases, which poses a problem of highly complicated configuration and arrangement of suspending sheaves and reversing sheaves.
  • An object of the present invention is to provide a traction elevator apparatus in which a high capacity of an elevator apparatus in which space saving is achieved can be kept by decreasing the size of a traction machine and by simplifying the configuration.
  • Patent Document 1 Japanese Patent Laid-Open No. 2000-153975
  • a reversing sheave for car which has a turning shaft parallel with a car suspending sheave above a car and also has rope grooves lying on a straight line with respect to the rope grooves of the car suspending sheave on the vertically projected plane, is arranged above the car;
  • a reversing sheave for counterweight which has a turning shaft parallel with a counterweight suspending sheave above a counterweight and also has rope grooves lying on a straight line with respect to the rope grooves of the counterweight suspending sheave on the vertically projected plane, is arranged above the counterweight; and a traction machine and a deflector sheave are arranged at the top of an elevator shaft so as to be aligned with the positions of the car suspending sheave and the counterweight suspending sheave, by which the car and the counterweight are suspended in a 3:1 roping system.
  • Figure 1 is a general system view showing a first embodiment of an elevator apparatus in accordance with the present invention
  • Figure 2 is a plan view of Figure 1.
  • a car 2 moving vertically in an elevator shaft 1 having a substantially square-shaped transverse cross section is arranged on the shaft wall 1a side on which a doorway 3 that connects an elevator hall on each floor of a building to the shaft 1 is provided.
  • the horizontal movement of the car 2 is restricted by a pair of car guide rails 4 erected so as to face to each other over the elevatable range of the car 2.
  • shaft walls 1b and 1c facing to each other on both sides with the shaft wall 1a being held therebetween and both side surfaces of the car 2
  • slight clearances 5a and 5b are formed, respectively.
  • the car 2 is supported by a quadrangular prism shaped car frame (not shown) provided so as to surround the central portions of side surfaces and top and bottom surfaces of the car 2, and guide rollers (not shown) etc. provided on vertical frames of this car frame engage with the car guide rails 4 arranged so as to pass through the clearances 5a and 5b on both sides of the car 2, by which the car 2 is guided in the vertical direction.
  • a car suspending sheave 2a is provided turnably.
  • the car suspending sheave 2a has a turning shaft that is parallel with the shaft wall 1a, and is arranged in a central part above the car 2.
  • a counterweight 6 moving vertically in the elevator shaft 1 in the direction opposite to the car 2 is arranged so as to move vertically in a clearance 5c formed between a shaft wall 1d on the far side facing to the shaft wall 1a with the car 2 being held therebetween and the car 2. That is to say, since a sufficient distance is not provided between the car 2 and the shaft wall 1d, the counterweight 6 has a construction that is longer in the width direction than in the front-to-back direction of the car 2.
  • the counterweight 6 is arranged so that the horizontal movement thereof is restricted by a pair of counterweight guide rails 7 erected so as to face to each other over the elevatable range of the counterweight 6.
  • the counterweight 6 is supported by a substantially quadrangular prism shaped counterweight frame (not shown), and guide shoes (not shown) etc. provided on vertical frames of this counterweight frame engage with the counterweight guide rails 7 arranged on both sides of the counterweight 6, by which the counterweight 6 is guided in the vertical direction.
  • a counterweight suspending sheave 6a is provided turnably in an end portion on the shaft wall 1c side.
  • the counterweight suspending sheave 6a has a turning shaft that is perpendicular to the turning shaft of the car suspending sheave 2a, which is substantially parallel with the lengthwise direction of the counterweight 6, and the counterweight suspending sheave 6a is arranged so that an end portion on the shaft wall 1c side thereof lies in a substantially middle portion in the width direction of the car 2.
  • a reversing sheave 9a for car is turnably provided just above the car 2
  • a reversing sheave 9b for counterweight is turnably provided just above the counterweight 6.
  • the reversing sheave 9a for car has a turning shaft that is substantially parallel with the turning shaft of the car suspending sheave 2a, and is arranged on the shaft wall 1a side from the car suspending sheave 2a so that rope grooves formed in the outer peripheral surface thereof lies substantially on a straight line with respect the rope grooves formed in the outer peripheral surface of the car suspending sheave 2a on the vertically projected plane.
  • an end portion on the shaft wall 1d side of the reversing sheave 9a for car is arranged so as to be located substantially just above a central part of the car suspending sheave 2a.
  • the reversing sheave 9b for counterweight has a turning shaft that is substantially parallel with the turning shaft of the counterweight suspending sheave 6a and is perpendicular to the turning shafts of the car suspending sheave 2a and the reversing sheave 9a for car, and is arranged on the shaft wall 1b side from the counterweight suspending sheave 6a so that rope grooves formed in the outer peripheral surface thereof lies substantially on a straight line with respect the rope grooves formed in the outer peripheral surface of the counterweight suspending sheave 6a on the vertically projected plane.
  • a gearless traction machine 10 and a deflector sheave 11 including a drive sheave 10a formed with rope grooves in the outer peripheral surface and a motor section 10b that rotatively control the drive sheave 10a in an arbitrary direction and at an arbitrary speed.
  • the drive sheave 10a of the gearless traction machine 10 has almost the same diameter as the diameters of the suspending sheaves and the reversing sheaves provided in the elevator shaft 1, and also has a turning shaft that is substantially parallel with the turning shafts of the car suspending sheave 2a and the reversing sheave 9a for car.
  • the drive sheave 10a is arranged on the shaft wall 1d side of the car suspending sheave 2a so that the rope grooves therein lies substantially on a straight line with respect to the rope grooves in the car suspending sheave 2a and the rope grooves in the reversing sheave 9a for car, and an end portion on the shaft wall 1a side thereof has a predetermined distance from an end portion on the shaft wall 1d side of the car suspending sheave 2a on the vertically projected plane.
  • the deflector sheave 11 has a turning shaft that is substantially parallel with the turning shafts of the drive sheave 10a, the car suspending sheave 2a, and the reversing sheave 9a for car, and is arranged so that rope grooves formed in the outer peripheral surface thereof lies substantially on a straight line with respect to the rope grooves of the car suspending sheave 2a, the reversing sheave 9a for car, and the drive sheave 10a on the vertically projected plane. Also, an end portion on the shaft wall 1d side thereof is located substantially just above an end portion on the shaft wall 1c side of the counterweight suspending sheave 6a.
  • a main rope 12 for suspending the car 2 and the counterweight 6, which are configured as described above, in a well bucket manner is elastically fixed to the top frame of the car frame, which supports the turning shaft of the car suspending sheave 2a, via a car-side fixing member 12a.
  • the main rope 12 is set from the car-side fixing member 12a side to the reversing sheave 9a for car, the car suspending sheave 2a, the drive sheave 10a, the deflector sheave 11, the counterweight suspending sheave 6a, and the reversing sheave 9b for counterweight in that order.
  • the other end of the main rope 12 is elastically fixed to the top frame of the counterweight frame, which supports the counterweight 6, via a counterweight-side fixing member 12b.
  • the main rope 12 is arranged so that a portion leading from the car-side fixing member 12a to the end portion on the shaft wall 1d side of the reversing sheave 9a for car, a portion leading from the end portion on the shaft wall 1d side of the deflector sheave 11 to the end portion on the shaft wall 1c side of the counterweight suspending sheave 6a, and a portion leading from the end portion on the shaft wall 1b side of the reversing sheave 9b for counterweight to the counterweight-side fixing member 12b are in a substantially vertical direction.
  • a portion of the main rope 12 leading from the end portion on the shaft wall 1a side of the reversing sheave 9a for car to the end portion on the shaft wall 1a side of the car suspending sheave 2a and a portion of the main rope12 leading from the end portion on the shaft wall 1d side of the car suspending sheave 2a to the end portion on the shaft wall 1a side of the drive sheave 10a are arranged so as to have a predetermined angle with respect to a vertical plane having the turning shaft of the car suspending sheave 2a so as to be symmetrical with respect to this plane.
  • the car 2 and the counterweight 6 are suspended by the main rope 12 in a 3:1 roping system, and move vertically in the elevator shaft 1 at a speed of 1/3 of the rotational speed of the drive sheave 10a.
  • the main rope 12 has properties of prolonged bending life and high traction ability so as to be set around the suspending sheaves and reversing sheaves and the drive sheave 10a each having a small diameter.
  • the main rope 12 for example, a rope in which a core wire made of a steel is coated with a resin to provide a high friction coefficient is used.
  • the size of the gearless traction machine 10 can be decreased.
  • the gearless traction machine 10 and the deflector sheave 11 can be installed in the machine room 8 having almost the same vertically projected area as that of the elevator shaft 1.
  • the gearless traction machine 10 and the deflector sheave 11 can be installed so as to be aligned with the positions of the car suspending sheave 2a provided on the top frame of car frame and the counterweight suspending sheave 6a provided on the top frame of counterweight frame. Therefore, the length of the main rope 12 and the number of suspending sheaves etc. are made at a minimum, by which the 3:1 roping system can be configured, and also a fixed element for supporting the car suspending sheave 2a need not be installed newly on the car 2, so that the configuration can be made simple.
  • the machine room 8 having almost the same vertically projected area as that of the elevator shaft 1 is installed at the top of the elevator shaft 1.
  • the size of the traction machine can be decreased, and the entire configuration can be simplified. Therefore, even in a space-saved elevator apparatus, a high capacity can be achieved easily.

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)
EP04745690A 2004-06-08 2004-06-08 Appareillage d'ascenseur Withdrawn EP1754681A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/007980 WO2005121009A1 (fr) 2004-06-08 2004-06-08 Appareillage d'ascenseur

Publications (2)

Publication Number Publication Date
EP1754681A1 true EP1754681A1 (fr) 2007-02-21
EP1754681A4 EP1754681A4 (fr) 2010-01-20

Family

ID=35502966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04745690A Withdrawn EP1754681A4 (fr) 2004-06-08 2004-06-08 Appareillage d'ascenseur

Country Status (4)

Country Link
EP (1) EP1754681A4 (fr)
JP (1) JPWO2005121009A1 (fr)
CN (1) CN1802309A (fr)
WO (1) WO2005121009A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018099979A1 (fr) * 2016-12-02 2018-06-07 Siemag Tecberg Gmbh Système de transport pour stockage définitif

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4940823B2 (ja) * 2006-08-18 2012-05-30 フジテック株式会社 エレベータ装置
CN102815588B (zh) * 2011-06-10 2015-05-13 铃木电梯（中国）有限公司 多功能电梯中的滑轮组及由此获得的多功能电梯
WO2017046892A1 (fr) * 2015-09-16 2017-03-23 三菱電機株式会社 Procédé de remplacement de poulie de déflecteur d'ascenseur et outil de remplacement de poulie de déflecteur
CN107089579A (zh) * 2017-06-23 2017-08-25 天奥电梯（中国）有限公司 一种简易货用电梯
JP7161819B2 (ja) * 2019-12-18 2022-10-27 三菱電機株式会社 エレベータ装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20320076U1 (de) * 2003-12-23 2004-03-04 Wittur Ag Antriebssystem für enge Triebwerksräume
JP2004083231A (ja) * 2002-08-28 2004-03-18 Mitsubishi Electric Corp エレベータ装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724313B2 (fr) * 1974-04-26 1982-05-24
JPH08231157A (ja) * 1995-02-24 1996-09-10 Toshiba Corp 油圧エレベータ
JP2001302138A (ja) * 2000-04-14 2001-10-31 Mitsubishi Electric Corp エレベーターの主索装置
FI4928U1 (fi) * 2001-01-25 2001-05-23 Kone Corp Hissi
JP2004155526A (ja) * 2002-11-05 2004-06-03 Mitsubishi Electric Corp エレベータ装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004083231A (ja) * 2002-08-28 2004-03-18 Mitsubishi Electric Corp エレベータ装置
DE20320076U1 (de) * 2003-12-23 2004-03-04 Wittur Ag Antriebssystem für enge Triebwerksräume

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005121009A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018099979A1 (fr) * 2016-12-02 2018-06-07 Siemag Tecberg Gmbh Système de transport pour stockage définitif
EA039051B1 (ru) * 2016-12-02 2021-11-26 Сиемаг Текберг Гмбх Система подъемника для хранилищ

Also Published As

Publication number Publication date
WO2005121009A1 (fr) 2005-12-22
JPWO2005121009A1 (ja) 2008-04-10
EP1754681A4 (fr) 2010-01-20
CN1802309A (zh) 2006-07-12

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

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Effective date: 20051108

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ABE, SHIGERU,C/O MITSUBISHI DENKI K. K.

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE

A4 Supplementary search report drawn up and despatched

Effective date: 20091217

RIC1 Information provided on ipc code assigned before grant

Ipc: B66B 11/00 20060101ALI20091211BHEP

Ipc: B66B 7/06 20060101AFI20051227BHEP

17Q First examination report despatched

Effective date: 20100611

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: 20101022