EP1798187A1 - Assemblage de poulie pour un système d' élévateur - Google Patents

Assemblage de poulie pour un système d' élévateur Download PDF

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Publication number
EP1798187A1
EP1798187A1 EP07000431A EP07000431A EP1798187A1 EP 1798187 A1 EP1798187 A1 EP 1798187A1 EP 07000431 A EP07000431 A EP 07000431A EP 07000431 A EP07000431 A EP 07000431A EP 1798187 A1 EP1798187 A1 EP 1798187A1
Authority
EP
European Patent Office
Prior art keywords
sheave
car
portions
disposed
sheave portions
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
EP07000431A
Other languages
German (de)
English (en)
Other versions
EP1798187B1 (fr
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
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Priority to EP07000431.2A priority Critical patent/EP1798187B1/fr
Priority claimed from EP02786788A external-priority patent/EP1567440B3/fr
Publication of EP1798187A1 publication Critical patent/EP1798187A1/fr
Application granted granted Critical
Publication of EP1798187B1 publication Critical patent/EP1798187B1/fr
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
    • 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.
  • this invention is 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 designed according to this invention includes a car and at least one guide rail to guide the car as it moves within a hoistway.
  • a sheave assembly mounted to the car includes at least two sheave portions rotatable about a common axis with a spacing between the portions.
  • the sheave portions are mounted either about a common shaft or about separate shafts disposed about the common axis.
  • the rail extends into the spacing between sheave portions such that at least a portion of the rail is accommodated within the spacing between the sheave portions.
  • 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 14 and 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 counterweight 22.
  • the coouterweight 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 or elsewhere in the system 10 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 arc 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, tangent to 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 65 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 62 through 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 ofhoistway 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. It should be understood that it within the contemplation of this invention that separate shafts be used for supporting the sheave portions 54.
  • FIG. 7 another embodiment of the sheave assembly is shown 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 counter-weight 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)
EP07000431.2A 2002-11-25 2002-11-25 Assemblage de poulie pour un système d' élévateur Expired - Lifetime EP1798187B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07000431.2A EP1798187B1 (fr) 2002-11-25 2002-11-25 Assemblage de poulie pour un système d' élévateur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02786788A EP1567440B3 (fr) 2002-11-25 2002-11-25 Train de galets pour systeme d'ascenseur
EP07000431.2A EP1798187B1 (fr) 2002-11-25 2002-11-25 Assemblage de poulie pour un système d' élévateur

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP02786788A Division EP1567440B3 (fr) 2002-11-25 2002-11-25 Train de galets pour systeme d'ascenseur
EP02786788A Division-Into EP1567440B3 (fr) 2002-11-25 2002-11-25 Train de galets pour systeme d'ascenseur

Publications (2)

Publication Number Publication Date
EP1798187A1 true EP1798187A1 (fr) 2007-06-20
EP1798187B1 EP1798187B1 (fr) 2014-08-13

Family

ID=37745852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07000431.2A Expired - Lifetime EP1798187B1 (fr) 2002-11-25 2002-11-25 Assemblage de poulie pour un système d' élévateur

Country Status (2)

Country Link
EP (1) EP1798187B1 (fr)
ES (1) ES2500416T3 (fr)

Citations (5)

* 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
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
WO2000027739A1 (fr) * 1998-11-05 2000-05-18 Kone Corporation Ascenseur a poulie tractrice
US20020070080A1 (en) * 2000-11-29 2002-06-13 Shigeo Nakagaki Elevator
FR2823734A1 (fr) * 2001-04-19 2002-10-25 Serge Arnoult Installation d'ascenseur pourvue de moyens d'entrainement et de moyens de suspension independants

Patent Citations (5)

* 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
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
WO2000027739A1 (fr) * 1998-11-05 2000-05-18 Kone Corporation Ascenseur a poulie tractrice
US20020070080A1 (en) * 2000-11-29 2002-06-13 Shigeo Nakagaki Elevator
FR2823734A1 (fr) * 2001-04-19 2002-10-25 Serge Arnoult Installation d'ascenseur pourvue de moyens d'entrainement et de moyens de suspension independants

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 056 (M - 1551) 28 January 1994 (1994-01-28) *

Also Published As

Publication number Publication date
ES2500416T3 (es) 2014-09-30
EP1798187B1 (fr) 2014-08-13

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