EP1567440B3 - Sheave assembly for an elevator system - Google Patents

Sheave assembly for an elevator system Download PDF

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Publication number
EP1567440B3
EP1567440B3 EP02786788A EP02786788A EP1567440B3 EP 1567440 B3 EP1567440 B3 EP 1567440B3 EP 02786788 A EP02786788 A EP 02786788A EP 02786788 A EP02786788 A EP 02786788A EP 1567440 B3 EP1567440 B3 EP 1567440B3
Authority
EP
European Patent Office
Prior art keywords
car
sheave
portions
guide rail
spacing
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.)
Expired - Lifetime
Application number
EP02786788A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1567440A4 (en
EP1567440B1 (en
EP1567440A1 (en
Inventor
Franck Det
Davy Dupee
Jean-Noel Cloux
Michel Beeuwsaert
Raphael Picard
Pascal Rebillard
Fernando Rico
David Pillin
Hugues Fanielle
Jacobus Benjamin Legez
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.)
Otis Elevator Co
Original Assignee
Otis Elevator Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32391445&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1567440(B3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Priority to ES07000431.2T priority Critical patent/ES2500416T3/es
Priority to EP07000431.2A priority patent/EP1798187B1/en
Publication of EP1567440A1 publication Critical patent/EP1567440A1/en
Publication of EP1567440A4 publication Critical patent/EP1567440A4/en
Publication of EP1567440B1 publication Critical patent/EP1567440B1/en
Application granted granted Critical
Publication of EP1567440B3 publication Critical patent/EP1567440B3/en
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
    • B66B11/0065—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
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension
    • 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
    • B66B15/00—Main component parts of mining-hoist winding devices
    • B66B15/02—Rope or cable carriers

Definitions

  • This invention generally relates to elevator systems and more specifically to a space efficient elevator system including a guide rail mounted machine and a sheave design that accommodates the guide rail.
  • Elevator systems typically include a car and counterweight that move within a hoistway. Roping couples the car and counterweight and supports them as they move.
  • a motor drives the rope to raise and lower the car.
  • the car typically includes a roller assembly that cooperates with a guide rail to guide the car within the hoistway.
  • the motor has been mounted within a machine room disposed at the top of the hoistway.
  • Idler sheaves disposed on the elevator car form part of a system of roping for raising and lowering the car along with the counterweight. Roping is threaded through idler sheaves at various location in the system, for example, the elevator car and counterweight.
  • the idler sheaves necessarily take up space within the hoistway and the guide rail extends from the interior surface of the hoistway walls toward the elevator car.
  • Various machine mounting strategies have been proposed but building and safety codes require sometimes expensive devices and controls.
  • Machine room-less elevator systems have been developed that no longer require a separate machine room.
  • Machine room-less elevator systems were developed in response to consumer demands for simpler, more efficient use of space dedicated to elevator systems. Even with such systems, there still is need to decrease the space occupied by an elevator system.
  • DE-A-1032496 discloses an elevator drive system with guide rollers mounted underneath the car.
  • US-A-20020070080 discloses an elevator having cage-side sheaves disposed at four positions on the lower portion of the cage.
  • this invention seeks to provide an elevator system having a unique sheave arrangement that accommodates a portion of a guide rail, requires less space within a hoistway and allows more versatility in arranging the components in the system.
  • An elevator system according to this invention is defined in claim 1.
  • the inventive arrangement of system components provides a more efficient, space saving elevator system.
  • an embodiment of this invention is an elevator system 10 including an elevator car 12 supported for movement within a hoistway 14.
  • the hoistway 14 includes guide rails 38 positioned on an interior wall 24 of the hoistway 14and mounted to counter-weight brackets 56.
  • the counter-weight brackets 56 are mounted to an opposite interior wall 26.
  • the guide rails 38 guide movement of the elevator car 12 within the hoistway 14.
  • the counter-weight bracket 56 provides a space extending the entire height 42 of the hoistway 14 for movement of a counter-weight 22.
  • the counterweight 22 moves when the elevator car 12 moves as known.
  • the counterweight 22 is guided by guide rails 40 mounted within the hoistway (shown in Figure 3 ).
  • the elevator car 12 and counterweight 22 include sheave assemblies 32, 34 that cooperate with roping 36 and a machine 16 to raise and lower the elevator car 12.
  • the sheave assemblies 32 are mounted to a base 48 of the elevator car 12, however, it is within the contemplation of this invention that the sheave assemblies 32 may be mounted on other locations on the elevator car 12 as may be needed as are known to a worker skilled in the art.
  • the elevator car 12 also includes roller assemblies 28, 30 disposed on a top and bottom of the elevator car 12 that ride along the guide rails 38 maintaining proper alignment of the elevator car 12.
  • the machine 16 of the example elevator system 10 is positioned and supported atop at least one of the guide rails 38, 40. Supporting the machine 16 atop the guide rails 38,40 eliminates the need for a separate machine room required in conventional elevator systems.
  • the machine room-less elevator system 10 is designed to efficiently use hoistway space 14 and eliminate the requirement of a separate machine room. Using a guide rail to support the machine 16 provides the further advantage of minimizing the number of components.
  • the elevator system 10 optimizes space use within the hoistway 14.
  • the inventive approach allows the guide rails 38 to be positioned as close to the elevator car 12 as is possible.
  • the sheave assemblies 32 include a spacing 62 between profiled belt engaging portions 54, allowing the guide rails 38 to extend closer to the elevator car 12.
  • the sheave assemblies 32 are disposed on the base 48 of the elevator car 12 and at least two belts 36 thread about the idler sheave assemblies disposed on either side of the elevator car 12 and are fixed at one end to a dead end hitch 18 mounted atop one of the guide rails 38.
  • the other end of each belt 36 is fixed to dead end hitch 20 mounted atop the guide rail 38 with the machine 16 after threading through the idler sheave assembly 34 of the counterweight 22 and over the machine 16.
  • the illustrated configuration of roping is only one type and it should be understood that other configurations of hoistway roping for raising and lowering the elevator car 12 are within the contemplation of this invention.
  • each of the guide rails 38 includes a mount portion 64 mounted to the interior wall 24 or to the counter-weight bracket 56. Extending from the rail mount 64 is a guide portion 66. The guide portion 66 cooperates with the roller assemblies 28,30 as known. Space within the hoistway 14 is conserved by allowing the guide portion 66 of the guide rails 38 to extend toward the car 12 beyond the belt engaging surfaces on the sheave portions 54 of the sheave assemblies 32. Extending the guide portion 66 of each guide rail 38 between sheaves 54 of the sheave assembly 32 reduces the amount of space utilized for components of the elevator system 10 to conserve space within the hoistway 14.
  • the example sheave assembly 32 includes four individual sheave portions 54 supported about a common shaft 50.
  • a spacing 62 separates the sheave portions 54 into two separate groups of two idler sheave portions 54.
  • Each of the idler sheave portions 54 includes an outer diameter 74 ( Figure 4 ).
  • Some of the guide portion 66 of each guide rail 38 extends into the spacing 62 between a plane 72, tangentto the outer diameter 74 of the sheave portions 54; and the shaft 50.
  • the spacing 62 has a smaller outside dimension than the outside diameter 74 of the sheave portions. In the illustrated example, the outer dimension of the shaft 50 establishes this smaller outside dimension.
  • each of the sheaves 54 includes the outer diameter 74.
  • the outer diameter 74 is spaced a first distance 75 from the axis of rotation 58.
  • the guide portion 66 of the guide rail 38 is spaced from the axis of rotation a second distance 77.
  • the second distance 77 is less then the first distance 75 such that a portion of the guide rail is within the spacing 62 between sheave portions.
  • the plane 72 tangent to the outer diameter 74 of the sheave portions 54 extends across the spacing 62 and at least a portion of the guide 66 of the guide rail 38 intersects the plane 72.
  • the guide rail 38 engages the roller assembly 28 of elevator car 12.
  • the ropes 36 are shown in relative position to the guide rail 38 and roller assembly 28.
  • the plane 72 tangent with the outer diameter 74 of the sheaves 54 is shown relative to the ropes 36 and intersects a portion of the guide rail 38.
  • Mounting the idler sheave assemblies 32 to create the spacing 62through which the guide portion 66 can extend provides increased space for use by the elevator car 12 and efficiently allocates precious and valuable space within the hoistway 14.
  • the increased space within the hoistway 14 provided by this invention accommodates consumer demands for efficient use of hoistway space.
  • sheave assembly 32 an enlarged view is shown of the sheave assembly 32.
  • the sheave portions 54 are supported about the axis 58 by the common shaft 50 and includes bearing assemblies 60 mounted within each sheave portion 54.
  • the bearing assemblies 60 may be of any type known to a worker skilled in the art.
  • two sheave portions 54 are shown on either side of the guide rail 38 along with corresponding roping 36.
  • sheave assembly including three idler sheave portions 54 on each side of the spacing 62.
  • the number of sheave portions 54 disposed on either side of the guide rail 38 is application specific and may include two, three, four, or any combinations thereof as required by specific application requirements.
  • the counterweight 22 includes sheave assemblies 34 similar to the sheave assemblies 32 mounted on the elevator car 12.
  • the guide rails 40 for the counterweight 22 do not extend between the sheave portions 54 of the sheave assembly 34 mounted on the counterweight 22 in this example.

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)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP02786788A 2002-11-25 2002-11-25 Sheave assembly for an elevator system Expired - Lifetime EP1567440B3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES07000431.2T ES2500416T3 (es) 2002-11-25 2002-11-25 Conjunto de poleas para un sistema de ascensor
EP07000431.2A EP1798187B1 (en) 2002-11-25 2002-11-25 Sheave assembly for an elevator system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2002/037776 WO2004048246A1 (en) 2002-11-25 2002-11-25 Sheave assembly for an elevator system

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP07000431.2A Division EP1798187B1 (en) 2002-11-25 2002-11-25 Sheave assembly for an elevator system
EP07000431.2A Division-Into EP1798187B1 (en) 2002-11-25 2002-11-25 Sheave assembly for an elevator system

Publications (4)

Publication Number Publication Date
EP1567440A1 EP1567440A1 (en) 2005-08-31
EP1567440A4 EP1567440A4 (en) 2006-01-04
EP1567440B1 EP1567440B1 (en) 2007-01-24
EP1567440B3 true EP1567440B3 (en) 2010-07-14

Family

ID=32391445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02786788A Expired - Lifetime EP1567440B3 (en) 2002-11-25 2002-11-25 Sheave assembly for an elevator system

Country Status (11)

Country Link
EP (1) EP1567440B3 (xx)
JP (1) JP4530857B2 (xx)
KR (1) KR100951522B1 (xx)
CN (1) CN1714038B (xx)
AT (1) ATE352510T1 (xx)
AU (1) AU2002350256A1 (xx)
DE (2) DE20221212U1 (xx)
ES (1) ES2278070T7 (xx)
HK (1) HK1084371A1 (xx)
PT (1) PT1567440E (xx)
WO (1) WO2004048246A1 (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL180964A (en) * 2002-09-05 2010-11-30 Inventio Ag Drive engine for a lift installation and method of mounting a drive engine
FI118964B (fi) * 2006-04-10 2008-05-30 Kone Corp Järjestely hissin köysivoiman tasaamiseksi ja hissi
CN101298307B (zh) * 2007-05-03 2010-06-23 因温特奥股份公司 电梯设备,电梯设备用转向辊,和设置负载传感器的方法
US8430211B2 (en) 2007-06-08 2013-04-30 Otis Elevator Company Elevator system with guide axis aligned with traction member
WO2010013099A1 (en) * 2008-08-01 2010-02-04 Otis Elevator Company Vibration isolation assembly for an elevator system
JP5951038B2 (ja) * 2012-10-22 2016-07-13 三菱電機株式会社 エレベータの吊り車装置
CN109987476B (zh) * 2017-12-29 2021-01-15 梯阶电梯工程有限公司 分离式缆线导滑装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1032496B (de) * 1954-01-18 1958-06-19 Joseph Tepper Maschinenfabrik Aufzugsanlage fuer Treibscheibenantrieb
JPS63154578U (xx) * 1987-03-31 1988-10-11
JPH0780660B2 (ja) * 1987-09-08 1995-08-30 株式会社東芝 低層階用小形エレベータ
JPH05278974A (ja) * 1992-03-31 1993-10-26 Hitachi Building Syst Eng & Service Co Ltd エレベーター用従動綱車
JPH07144848A (ja) * 1993-11-26 1995-06-06 Otis Elevator Co リニアモータの固定子支持装置
ES2315007T3 (es) * 1998-02-26 2009-03-16 Otis Elevator Company Ascensor de elevacion por correa que tiene la unidad de accionamiento en el contrapeso.
FI109468B (fi) * 1998-11-05 2002-08-15 Kone Corp Vetopyörähissi
US6202793B1 (en) * 1998-12-22 2001-03-20 Richard N. Fargo Elevator machine with counter-rotating rotors
US6405833B1 (en) * 2000-01-06 2002-06-18 Otis Elevator Company Flexible flat rope sheave assembly with separate shoulder and flange surfaces having varying friction properties
JP2002167137A (ja) 2000-11-29 2002-06-11 Toshiba Corp エレベータ
FR2823734B1 (fr) * 2001-04-19 2007-04-20 Serge Arnoult Installation d'ascenseur pourvue de moyens d'entrainement et de moyens de suspension independants

Also Published As

Publication number Publication date
EP1567440A4 (en) 2006-01-04
DE60217935T2 (de) 2007-07-26
ATE352510T1 (de) 2007-02-15
DE60217935T3 (de) 2010-12-23
HK1084371A1 (en) 2006-07-28
JP2006507200A (ja) 2006-03-02
JP4530857B2 (ja) 2010-08-25
EP1567440B1 (en) 2007-01-24
CN1714038B (zh) 2013-01-16
EP1567440A1 (en) 2005-08-31
PT1567440E (pt) 2007-04-30
AU2002350256A1 (en) 2004-06-18
WO2004048246A1 (en) 2004-06-10
CN1714038A (zh) 2005-12-28
ES2278070T7 (es) 2011-08-01
DE60217935D1 (de) 2007-03-15
DE20221212U1 (de) 2005-08-04
KR100951522B1 (ko) 2010-04-09
KR20050091703A (ko) 2005-09-15
ES2278070T3 (es) 2007-08-01

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