EP1717184A1 - Aufzug - Google Patents

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Publication number
EP1717184A1
EP1717184A1 EP04711442A EP04711442A EP1717184A1 EP 1717184 A1 EP1717184 A1 EP 1717184A1 EP 04711442 A EP04711442 A EP 04711442A EP 04711442 A EP04711442 A EP 04711442A EP 1717184 A1 EP1717184 A1 EP 1717184A1
Authority
EP
European Patent Office
Prior art keywords
car
guide rails
disposed
counterweight
car guide
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
EP04711442A
Other languages
English (en)
French (fr)
Other versions
EP1717184B1 (de
EP1717184A4 (de
Inventor
Hideaki c/o Mitsubishi Denki K.K. KODERA
Kenichi C/o Mitsubishi Denki K.K. OKAMOTO
Hiroshi C/o Mitsubishi Denki K.K. KIGAWA
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 EP1717184A1 publication Critical patent/EP1717184A1/de
Publication of EP1717184A4 publication Critical patent/EP1717184A4/de
Application granted granted Critical
Publication of EP1717184B1 publication Critical patent/EP1717184B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B66B7/00—Other common features of elevators
    • B66B7/02—Guideways; Guides
    • B66B7/021—Guideways; Guides with a particular position in the shaft

Definitions

  • the present invention relates to an elevator apparatus in which a guide rail for guiding raising and lowering of a car is installed inside a hoistway.
  • a pair of car guide rails are disposed in a vicinity of center in a depth direction of a car so as to be symmetrical relative to a center line in a width direction of the car.
  • a counterweight is disposed behind one of the car guide rails in the depth direction of the car. For this reason, width dimensions of the counterweight are limited, and it is necessary to increase thickness dimensions of the counterweight, increasing horizontal dimensions of a hoistway.
  • the present invention aims to solve the above problems and an obj ect of the present invention is to provide an elevator apparatus enabling space saving in a hoistway.
  • an elevator apparatus including: a driving machine having a drive sheave; a car and a counterweight raised and lowered inside a hoistway by the driving machine; a main rope wound around the drive sheave, the main rope suspending the car and the counterweight; and a pair of car guide rails installed inside the hoistway, the car guide rails guiding raising and lowering of the car, wherein the car guide rails are disposed such that a straight line joining the car guide rails intersects a center line in a width direction of the car obliquely when viewed from above.
  • Figure 1 is a plan showing part of an elevator apparatus according to Embodiment 1 of the present invention.
  • a car 2 and a counterweight 3 are disposed inside a hoistway 1.
  • the car 2 has: a car frame 4; and a cage 5 supported by the car frame 4.
  • the car frame 4 has: a lower frame (not shown) disposed on a lower portion of the cage 5; an upper beam 4a disposed horizontally above the cage 5; and first and second vertical stanchions 4b and 4c disposed vertically between the lower frame and the upper beam 4a.
  • the cage 5 has : a front surface portion 5a in which a car entrance is disposed; a back surface portion 5b opposite the front surface portion 5a; and a pair of first and second side surface portions 5c and 5d.
  • the counterweight 3 is disposed beside the car 2 so as to face the second side surface portion 5d when positioned level with the car 2.
  • the first vertical stanchion 4b is disposed so as to face (or adjoin) the first side surface portion 5c behind a midpoint in a depth direction of the car 2.
  • the second vertical stanchion 4c is disposed so as to face (or adjoin) the second side surface portion 5d in front of the midpoint in the depth direction of the car 2.
  • the vertical stanchions 4b and 4c are disposed so as to be generally diagonal.
  • the upper beam 4a which is connected between the vertical stanchions 4b and 4c, is disposed so as to intersect a center line C in a width direction of the car 2 obliquely when viewed from above.
  • a driving machine (not shown) is disposed in an upper portion inside the hoistway 1.
  • a plurality of main ropes (not shown) are wound around a drive sheave of the driving machine.
  • the main ropes have: a car end portion connected to the upper beam 4a; and a counterweight end portion connected to an upper end portion of the counterweight 3.
  • the car 2 and the counterweight 3 are suspended inside the hoistway 1 by the main ropes using a one-to-one (1:1) roping method, and raised and lowered by a driving force from the driving machine.
  • a pair of first and second car guide rails 6a and 6b for guiding raising and lowering of the car 2 and a pair of counterweight guide rails 7a and 7b for guiding raising and lowering of the counterweight 3 are installed inside the hoistway 1.
  • the guide rails 6a, 6b, 7a, and 7b are fixed to hoistway walls by means of a plurality of brackets 8.
  • the car guide rails 6a and 6b are disposed such that a straight line joining the car guide rails 6a and 6b intersects a center line C in the width direction of the car 2 (or a car entrance center line) obliquely when viewed from above.
  • the car guide rails 6a and 6b are disposed inside the hoistway 1 so as to be generally diagonal.
  • the first and second car guide rails 6a and 6b face the first and second vertical stanchions 4b and 4c, respectively.
  • the car guide rails 6a and 6b are installed so as to be oriented such that center lines of a horizontal cross section are parallel to the width direction of the car 2. Consequently, the center line of the horizontal cross section of the first car guide rail 6a and the center line of the horizontal cross section of the second car guide rail 6b are parallel to each other.
  • a plurality of car guide shoes 9 for engaging the car guide rails 6a and 6b are mounted to the car frame 4.
  • a total of four car guide shoes 9 are disposed on upper and lower end portions of first and second sides of the car 2.
  • the counterweight guide rails 7a and 7b are disposed such that a straight line joining the counterweight guide rails 7a and 7b is parallel to the center line C in the width direction of the car 2 when viewed from above.
  • the counterweight 3 is disposed in a space behind the second car guide rail 6b, which is positioned near a front end in a depth direction of the car 2.
  • a plurality of counterweight guide shoes 10 for engaging the counterweight guide rails 7a and 7b are mounted to the counterweight 3.
  • a total of four counterweight guide shoes 10 are disposed on upper and lower end portions of the first and second end portions in a width direction of the counterweight 3.
  • Sliding guide shoes or roller guide shoes, for example, can be used for the car guide shoes 9 and the counterweight guide shoes 10.
  • FIG. 2 is a plan showing part of an elevator apparatus according to Embodiment 2 of the present invention.
  • a car 2 has: a car frame 11; and a cage 5.
  • the car frame 11 has: a lower frame (not shown) disposed on a lower portion of the cage 5; a generally I-shaped upper frame 11a disposed horizontally above the cage 5; and four vertical stanchions (not shown) disposed vertically between the lower frame and the upper frame 11a.
  • the upper frame 11a and the vertical stanchions are disposed so as to have bilateral symmetry relative to a center line C in a width direction of the car 2.
  • the rest of the configuration is similar to that of Embodiment 1.
  • the car guide shoes 9 can also be mounted to the car frame 11 easily by using a bilaterally symmetrical car frame 11 having four vertical stanchions.
  • Figure 3 is a plan showing part of an elevator apparatus according to Embodiment 3 of the present invention and Figure 4 is a left side elevation of the elevator apparatus in Figure 3.
  • a pair of first and second car suspension sheaves 12a and 12b are mounted to a lower portion of a car 2.
  • a counterweight suspension sheave 13 is mounted to an upper portion of a counterweight 3.
  • a supporting platform 14 (omitted from Figure 3) is fixed to an upper portion of at least one guide rail 6a, 6b, 7a, and 7b.
  • a driving machine 15 for raising and lowering the car 2 and the counterweight 3 is supported on the supporting platform 14.
  • the driving machine 15 has : a driving machine main body 16 including a motor and a brake; and a drive sheave 17 rotated by the driving machine main body 16.
  • the driving machine 15 is a thin hoisting machine having an overall axial dimension that is less than an outside diameter dimension of the driving machine main body 16 or the drive sheave 17.
  • the driving machine 15 is disposed such that a rotating shaft of the drive sheave 17 is horizontal.
  • the driving machine 15 is disposed in an upper portion (top portion) inside a hoistway 1 so as to partially overlap with the car 2 and the counterweight 3 when viewed from above.
  • the car 2 and the counterweight 3 are suspended inside the hoistway 1 by a plurality of main ropes 18 (only one is shown in the figures) using a two-to-one (2: 1) roping method.
  • the main ropes 18 have a car end portion 18a and a counterweight end portion 18b.
  • the car end portion 18a and the counterweight end portion 18b are connected to the supporting platform 14 by means of rope end connecting apparatuses 19a and 19b.
  • the main ropes 18 are wound from the car end portion 18a sequentially around the second suspension sheave 12b, the first car suspension sheave 12a, the drive sheave 17, and the counterweight suspension sheave 13.
  • a portion of the main ropes 18 passing under the car 2 is disposed so as to intersect a center line C in a width direction of the car 2 obliquely and so as to be spaced away from a straight line joining the car guide rails 6a and 6b when viewed from above.
  • the portion of the main ropes 18 passing under the car 2 is parallel to the straight line joining the car guide rails 6a and 6b when viewed from above.
  • Emergency stopping apparatuses are disposed at least on portions of a lower portion of the car 2 facing the car guide rails 6a and 6b.
  • the car suspension sheaves 12a and 12b are disposed so as to be offset from the straight line joining the car guide rails 6a and 6b so as to avoid interference between the main ropes 18 and the emergency stopping apparatuses at the lower portion of the car 2.
  • a guide rail supporting platform 19 for supporting the guide rails 6a, 6b, 7a, and 7b is installed on a bottom portion of the hoistway 1.
  • a car buffer (not shown) and a counterweight buffer 20 are fixed on top of the guide rail supporting platform 19. The rest of the configuration is similar to that of Embodiment 1.
  • the present invention can also be applied to an elevator apparatus using a two-to-one (2:1) roping method, enabling horizontal dimensions of the hoistway 1 to be reduced.
  • the portion of the main ropes 18 passing under the car 2 is disposed so as to be spaced away from the straight line joining the car guide rails 6a and 6b when viewed from above, interference between the main ropes 18 and the emergency stopping apparatuses at the lower portion of the car 2 can be avoided easily without having to dispose the main ropes 18 in a position that is lower than the emergency stopping apparatuses, preventing vertical dimensions of the car 2 from having to be increased. Consequently, a pit depth dimension of the hoistway 1 can be reduced, thereby also enabling space to be saved inside the hoistway.
  • Configuration of an emergency stopping frame, a suspension sheave frame, etc., positioned on a lower portion of the car 2 can also be simplified.
  • the counterweight 3 may also be disposed in a space in front of the first car guide rails 6a, which is positioned toward near a rear end in a depth direction of the car 2.
  • FIG. 5 is a plan showing part of an elevator apparatus according to Embodiment 4 of the present invention.
  • a counterweight 3 is disposed behind a car 2 so as to face a rear surface portion 5b when positioned level with the car 2.
  • the car 2 is suspended at its center of gravity or a vicinity thereof.
  • a portion of main ropes 18 passing under the car 2 is disposed so as to pass through the center of gravity of the car or a vicinity thereof when viewed from above. For this reason, the portion of the main ropes 18 passing under the car 2 intersects a center line C in a width direction of the car 2 obliquely when viewed from above.
  • car guide rails 6a and 6b are also disposed such that a straight line joining the car guide rails 6a and 6b intersects the center line C in the width direction of the car 2 obliquely when viewed from above.
  • the car guide rails 6a and 6b are disposed such that the straight line connecting the car guide rails 6a and 6b is spaced away from the portion of the main ropes 18 passing under the car 2 when viewed from above.
  • the portion of the main ropes 18 passing under the car 2 is parallel to the straight line joining the car guide rails 6a and 6b when viewed from above.
  • the rest of the configuration is similar to that of Embodiment 2.
  • Configuration of an emergency stopping frame, a suspension sheave frame, etc., positioned on a lower portion of the car 2 can also be simplified.
  • load on a driving machine is supported by guide rails, but the load may also be made to be supported by structural beams fixed to a top portion of a hoistway.
  • driving machines are disposed such that a rotating shaft of a drive sheave is horizontal, but the driving machines may also be disposed such that the rotating shaft of the drive sheave is vertical or generally vertical.
  • thin hoisting machines are shown as driving machines, but the driving machines may also be hoisting machines having an overall axial dimension that is greater than an outside diameter dimension of a driving machine main body or a drive sheave.
  • car guide shoes are mounted to a car frame, but the car guide shoes may also be supported from the car frame by means of supporting arms, or be mounted directly to external surfaces of a cage, etc.
  • center lines of horizontal cross sections of car guide rails 6a and 6b are made to be parallel to a width direction of a car 2, but car guide rails may also be disposed obliquely relative to the width direction of the car 2 such that center lines of horizontal cross sections of the car guide rails overlap lie on an identical straight line.
  • the car guide rails may also be disposed diagonally and be disposed so as to face each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP04711442A 2004-02-16 2004-02-16 Aufzug Expired - Fee Related EP1717184B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/001641 WO2005077805A1 (ja) 2004-02-16 2004-02-16 エレベータ装置

Publications (3)

Publication Number Publication Date
EP1717184A1 true EP1717184A1 (de) 2006-11-02
EP1717184A4 EP1717184A4 (de) 2009-10-21
EP1717184B1 EP1717184B1 (de) 2011-07-13

Family

ID=34857537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04711442A Expired - Fee Related EP1717184B1 (de) 2004-02-16 2004-02-16 Aufzug

Country Status (4)

Country Link
EP (1) EP1717184B1 (de)
JP (1) JP4397896B2 (de)
CN (1) CN100333989C (de)
WO (1) WO2005077805A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011051736A (ja) * 2009-09-02 2011-03-17 Toshiba Elevator Co Ltd エレベータ装置
JP2012025581A (ja) * 2010-07-28 2012-02-09 Hitachi Ltd エレベーター
CN116331996A (zh) * 2021-12-23 2023-06-27 奥的斯电梯公司 电梯轿厢框架、电梯轿厢和电梯系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5649999Y2 (de) * 1975-07-17 1981-11-21
JPS5935823B2 (ja) * 1979-11-26 1984-08-30 株式会社日立製作所 トランク付間接押上形油圧エレベ−タ−
JPS5935822B2 (ja) * 1980-08-28 1984-08-30 フジテック株式会社 工事用エレベ−タの据付工法
FI94123C (fi) 1993-06-28 1995-07-25 Kone Oy Vetopyörähissi
CN1178843C (zh) * 2000-02-22 2004-12-08 三菱电机株式会社 电梯装置
JP4771586B2 (ja) * 2000-12-08 2011-09-14 東芝エレベータ株式会社 エレベータ
KR100560555B1 (ko) * 2001-08-29 2006-03-15 미쓰비시덴키 가부시키가이샤 엘리베이터 장치
JPWO2003074408A1 (ja) * 2002-03-06 2005-06-23 三菱電機株式会社 エレベータ装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO2005077805A1 *

Also Published As

Publication number Publication date
CN1747887A (zh) 2006-03-15
WO2005077805A1 (ja) 2005-08-25
JPWO2005077805A1 (ja) 2007-08-30
JP4397896B2 (ja) 2010-01-13
EP1717184B1 (de) 2011-07-13
CN100333989C (zh) 2007-08-29
EP1717184A4 (de) 2009-10-21

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