EP1754680A1 - Appareillage d'ascenseur - Google Patents

Appareillage d'ascenseur Download PDF

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Publication number
EP1754680A1
EP1754680A1 EP04745689A EP04745689A EP1754680A1 EP 1754680 A1 EP1754680 A1 EP 1754680A1 EP 04745689 A EP04745689 A EP 04745689A EP 04745689 A EP04745689 A EP 04745689A EP 1754680 A1 EP1754680 A1 EP 1754680A1
Authority
EP
European Patent Office
Prior art keywords
car
counterweight
sheaves
suspending
sheave
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Withdrawn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
EP04745689A
Other languages
German (de)
English (en)
Other versions
EP1754680A4 (fr
Inventor
Shigeru c/o Mitsubishi Denki Kabushiki Kaisha 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 EP1754680A1 publication Critical patent/EP1754680A1/fr
Publication of EP1754680A4 publication Critical patent/EP1754680A4/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Withdrawn legal-status Critical Current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
    • B66B11/0035—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 4:1 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 the 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 traction machine is arranged in an upper part of a clearance in which a counterweight moves vertically, a reversing sheave for car above a car is arranged between two car suspending sheaves provided on both sides above the car on the vertically projected plane, and a reversing sheave for counterweight above the counterweight is arranged between two counterweight suspending sheaves provided above the counterweight on the vertically projected plane, by which the car and the counterweight are suspended in a 4:1 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.
  • 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 on both sides of the car 2.
  • a top frame (not shown) of the car frame which is located above the car 2 and is provided from one side surface on the shaft wall 1b side to the other side surface on the shaft wall 1c side, two car suspending sheaves 2a and 2b are provided turnably at positions above the car 2 on one side surface side and the other side surface side.
  • the two car suspending sheaves 2a and 2b are arranged so that the turning shafts thereof are perpendicular to the shaft wall 1a, and rope grooves formed in the outer peripheral surfaces of the sheaves lie substantially on a straight line on the vertically projected plane.
  • a counterweight 6 moving vertically in the elevator shaft 1 in the direction opposite to the car 2 is arranged at a position close to the shaft wall 1d side on the far side from the shaft wall 1a so as to move vertically in the clearance 5b on the shaft wall 1c side having a greater width than the clearance 5a formed on the shaft wall 1b side 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, and the end portion thereof on the shaft wall 1a side is located in a substantially middle portion in the front-to-back direction of the car 2.
  • the counterweight 6 is supported by a quadrangular prism shaped counterweight frame (not shown), and guide shoes (not shown) etc. provided on vertical frames of the counterweight frame engage with the counterweight guide rails 7 arranged on the shaft wall 1a side and the shaft wall 1d side of the counterweight 6.
  • a top frame (not shown) of the counterweight frame which is located above the counterweight 6 and is provided from the shaft wall 1a side to the shaft wall 1d side of the counterweight 6, two counterweight suspending sheaves 6a and 6b are provided turnably in end portions on the shaft wall 1a side and the shaft wall 1d side.
  • the two counterweight suspending sheaves 6a and 6b are arranged so that the turning shafts thereof are parallel to the shaft wall 1a, and rope grooves formed in the outer peripheral surfaces of the counterweight suspending sheaves 6a and 6b lie substantially on a straight line on the vertically projected plane.
  • a reversing sheave 8a for car is turnably provided just above the car 2
  • a reversing sheave 8b for counterweight is turnably provided just above the counterweight 6 respectively.
  • the reversing sheave 8a for car is arranged so that the reversing sheave 8a for car has a turning shaft that is substantially parallel with the turning shafts of the car suspending sheaves 2a and 2b, which are perpendicular to the shaft wall 1a, being arranged between the car suspending sheaves 2a and 2b on the vertically projected plane, and rope grooves formed in the outer peripheral surface of the reversing sheave 8a lies substantially on a straight line with respect to the rope grooves formed in the outer peripheral surfaces of the car suspending sheaves 2a and 2b on the vertically projected plane.
  • the reversing sheave 8b for counterweight is arranged so that it has a turning shaft that is substantially parallel with the turning shafts of the counterweight suspending sheaves 6a and 6b, and it is perpendicular to the turning shafts of the car suspending sheaves 2a and 2b and the reversing sheave 8a for car.
  • the reversing sheave 8b for counterweight is arranged between the counterweight suspending sheaves 6a and 6b, and is arranged so that rope grooves formed in the outer peripheral surface of the reversing sheave 8b lies substantially on a straight line with respect to the rope grooves formed in the outer peripheral surfaces of the counterweight suspending sheaves 6a and 6b on the vertically projected plane.
  • a gearless traction machine 9 including a drive sheave 9a formed with a rope groove in the outer peripheral surface thereof and a motor section 9b having a diameter slightly larger than that of the drive sheave 9a.
  • the gearless traction machine 9 is arranged so that the turning shaft of the drive sheave 9a, which has almost the same diameter as the diameters of the suspending sheaves and the reversing sheaves provided in the elevator shaft 1, is substantially parallel with the turning shaft of the car suspending sheaves 2a and 2b and the reversing sheave 8a for car, and the motor section 9b for driving the drive sheave 9a is located on the shaft wall 1a side of the drive sheave 9a.
  • the drive sheave 9a is arranged so that the rope grooves in the drive sheave 9a lies substantially on a straight line with respect to the rope grooves in the car suspending sheaves 2a and 2b and the reversing sheave 8a for car, and the end portion on the shaft wall 1b side thereof is located substantially just above the end portion on the shaft wall 1c side of the car suspending sheave 2b and the end portion on the shaft wall 1c side thereof is located substantially just above the end portion on the shaft wall 1a side of the counterweight suspending sheave 6a.
  • a main rope 10 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 fixed element in the elevator shaft 1, which is located substantially just above the end portion on the shaft wall 1b side of the car suspending sheave 2a, via a car-side fixing member 10a.
  • the main rope 10 is set from the car-side fixing member 10a side to the car suspending sheave 2a, the reversing sheave 8a for car, the car suspending sheave 2b, the drive sheave 9a, the counterweight suspending sheave 6a, the reversing sheave 8b for counterweight, and the counterweight suspending sheave 6b in that order.
  • the other end of the main rope 10 is elastically fixed to the top fixed element in the elevator shaft 1, which is located substantially just above the end portion on the shaft wall 1d side of the counterweight suspending sheave 6b, via a counterweight-side fixing member 10b. That is to say, the car 2 and the counterweight 6 are suspended by the main rope 10 in a 4:1 roping system, and move vertically in the elevator shaft 1 at a speed of 1/4 of the rotational speed of the drive sheave 9a.
  • the main rope 10 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 9a each having a small diameter.
  • the main rope 10 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 9 can be decreased.
  • the diameter of the drive sheave 9a can be decreased to about 200 mm
  • the diameter of the motor section 9b can be decreased to about 300 mm.
  • the gearless traction machine 9 can be arranged in a top part of the elevator shaft 1 so that the turning shaft of the drive sheave 9a is perpendicular to the shaft wall 1a.
  • the gearless traction machine 9 can be installed so as to be aligned with the positions of the car suspending sheave 2b 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 10 and the number of suspending sheaves etc.
  • Figure 3 is a front view showing a second embodiment of an elevator apparatus in accordance with the present invention
  • Figure 4 is a plan view of Figure 3.
  • the two car suspending sheaves 2a and 2b are provided turnably at positions above the car 2 on one side surface side and the other side surface side.
  • two reversing sheaves 8c and 8d for car are turnably provided just above the car 2.
  • the reversing sheaves 8c and 8d for car each have a turning shaft that is substantially parallel with the turning shafts of the car suspending sheaves 2a and 2b, which are perpendicular to the shaft wall 1a, and are arranged between the car suspending sheaves 2a and 2b on the vertically projected plane. Also, rope grooves formed in the outer peripheral surfaces of the reversing sheaves 8c and 8d for car are arranged so as to lie substantially on a straight line with respect to the rope grooves formed in the outer peripheral surfaces of the car suspending sheaves 2a and 2b.
  • the two counterweight suspending sheaves 6a and 6b are provided turnably on the shaft wall 1a side and the shaft wall 1d side of the counterweight 6.
  • the two counterweight suspending sheaves 6a and 6b each have a turning shaft that is substantially parallel with the turning shaft of the reversing sheave 8b for counterweight provided at the top of the elevator shaft 1, and the turning shafts of the counterweight suspending sheaves 6a and 6b are arranged so as to be perpendicular to the turning shafts of the car suspending sheaves 2a and 2b and the reversing sheaves 8c and 8d for car.
  • the reversing sheave 8b for counterweight is arranged between the counterweight suspending sheaves 6a and 6b on the vertically projected plane, and also rope grooves formed in the outer peripheral surface of the reversing sheave 8b for counterweight is arranged so as to lie substantially on a straight line with respect to the rope grooves formed in the outer peripheral surfaces of the counterweight suspending sheaves 6a and 6b.
  • the gearless traction machine 9 arranged on the shaft wall 1c side in a top part of the elevator shaft 1 is arranged so that the turning shaft thereof is substantially parallel with the car suspending sheaves 2a and 2b and the reversing sheaves 8c and 8d for car.
  • the gearless traction machine 9 is arranged so that the rope grooves in the drive sheave 9a lies substantially on a straight line with respect to the rope grooves in the car suspending sheaves 2a and 2b and the reversing sheaves 8c and 8d for car, the end portion on the shaft wall 1b side is located substantially just above the end portion on the shaft wall 1c side of the car suspending sheave 2b, and the end portion on the shaft wall 1c side is located substantially just above the end portion on the shaft wall 1a side of the counterweight suspending sheave 6a.
  • the main rope 10 for suspending the car 2 and the counterweight 6, which are configured as described above, in a well bucket manner is set from the car-side fixing member 10a side to the car suspending sheave 2a, the reversing sheaves 8c and 8d for car, the car suspending sheave 2b, the drive sheave 9a, the counterweight suspending sheave 6a, the reversing sheave 8b for counterweight, and the counterweight suspending sheave 6b in that order.
  • 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.
EP04745689A 2004-06-08 2004-06-08 Appareillage d'ascenseur Withdrawn EP1754680A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/007979 WO2005121008A1 (fr) 2004-06-08 2004-06-08 Appareillage d'ascenseur

Publications (2)

Publication Number Publication Date
EP1754680A1 true EP1754680A1 (fr) 2007-02-21
EP1754680A4 EP1754680A4 (fr) 2010-02-17

Family

ID=35502965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04745689A Withdrawn EP1754680A4 (fr) 2004-06-08 2004-06-08 Appareillage d'ascenseur

Country Status (4)

Country Link
EP (1) EP1754680A4 (fr)
JP (1) JPWO2005121008A1 (fr)
CN (1) CN1802308A (fr)
WO (1) WO2005121008A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9371212B2 (en) 2011-04-06 2016-06-21 Otis Elevator Company Elevator system including a 4:1 roping arrangement
US11203511B2 (en) 2017-10-27 2021-12-21 Otis Elevator Company Traction system for elevator and elevator system

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102134037A (zh) * 2011-04-14 2011-07-27 广东菱王电梯有限公司 4∶1小机房载货电梯的对重布置
CN102134034A (zh) * 2011-04-14 2011-07-27 广东菱王电梯有限公司 4∶1小机房电梯的曳引系统设计
CN102134036A (zh) * 2011-04-14 2011-07-27 广东菱王电梯有限公司 4∶1小机房载货电梯的对重系统设计
CN102398824A (zh) * 2011-11-02 2012-04-04 浙江西子重工机械有限公司 小型住宅升降装置
CN102491153B (zh) * 2011-12-29 2014-04-30 广东菱王电梯有限公司 6:1无机房载货电梯的曳引系统设计方法
CN102674111B (zh) * 2012-06-04 2015-06-17 日立电梯（中国）有限公司 电梯钢丝绳的绕绳结构
CN103231967B (zh) * 2013-05-08 2016-01-06 江苏阿尔法电梯有限公司 连接可靠的防震动双轮式轿顶返绳轮
JP6042987B2 (ja) * 2013-07-09 2016-12-14 三菱電機株式会社 エレベータ用ロープ及びそれを用いたエレベータ装置
KR101432451B1 (ko) * 2013-10-21 2014-08-22 현대엘리베이터주식회사 엘리베이터 장치
CN110709344B (zh) * 2017-06-06 2021-03-26 株式会社日立制作所 电梯
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
CN111465569A (zh) * 2017-12-13 2020-07-28 三菱电机株式会社 无机房电梯
KR102508730B1 (ko) * 2021-11-22 2023-03-14 정증자 균형장치 및 이를 포함하는 균형시스템

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138549A (fr) * 1974-04-26 1975-11-05
WO2003064309A1 (fr) * 2002-01-30 2003-08-07 Mitsubishi Denki Kabushiki Kaisha Dispositif d'ascenseur
US20040026178A1 (en) * 2001-12-12 2004-02-12 Takenobu Honda Elevator rope and elevator device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000063057A (ja) * 1998-06-08 2000-02-29 Meidensha Corp エレベータ
FI109468B (fi) * 1998-11-05 2002-08-15 Kone Corp Vetopyörähissi
FI4928U1 (fi) * 2001-01-25 2001-05-23 Kone Corp Hissi
JP4549616B2 (ja) * 2002-08-28 2010-09-22 三菱電機株式会社 エレベータ装置
JP2004155526A (ja) * 2002-11-05 2004-06-03 Mitsubishi Electric Corp エレベータ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138549A (fr) * 1974-04-26 1975-11-05
US20040026178A1 (en) * 2001-12-12 2004-02-12 Takenobu Honda Elevator rope and elevator device
WO2003064309A1 (fr) * 2002-01-30 2003-08-07 Mitsubishi Denki Kabushiki Kaisha Dispositif d'ascenseur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005121008A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9371212B2 (en) 2011-04-06 2016-06-21 Otis Elevator Company Elevator system including a 4:1 roping arrangement
US11203511B2 (en) 2017-10-27 2021-12-21 Otis Elevator Company Traction system for elevator and elevator system

Also Published As

Publication number Publication date
JPWO2005121008A1 (ja) 2008-04-10
EP1754680A4 (fr) 2010-02-17
WO2005121008A1 (fr) 2005-12-22
CN1802308A (zh) 2006-07-12

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