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WO2006035257A1 - Contrepoids pour un ascenseur a plan de traction decale par rapport au plan median vertical et a systeme de guidage equilibre, et ascenseur ainsi equipe - Google Patents

Contrepoids pour un ascenseur a plan de traction decale par rapport au plan median vertical et a systeme de guidage equilibre, et ascenseur ainsi equipe Download PDF

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Publication number
WO2006035257A1
WO2006035257A1 PCT/IB2004/003169 IB2004003169W WO2006035257A1 WO 2006035257 A1 WO2006035257 A1 WO 2006035257A1 IB 2004003169 W IB2004003169 W IB 2004003169W WO 2006035257 A1 WO2006035257 A1 WO 2006035257A1
Authority
WO
WIPO (PCT)
Prior art keywords
counterweight
elevator
compartments
plane
per
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.)
Ceased
Application number
PCT/IB2004/003169
Other languages
English (en)
Inventor
Thomas Coquerelle
Nicolas Fonteneau
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 PCT/IB2004/003169 priority Critical patent/WO2006035257A1/fr
Publication of WO2006035257A1 publication Critical patent/WO2006035257A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/12—Counterpoises

Definitions

  • This invention relates to a counterweight for an elevator with a traction plane offset relative to the vertical mid-plane and with a balanced guiding system, and to an elevator equipped therewith.
  • the development of modern elevators without machine rooms is known to reduce the size of the shaft, and the arrangement of the components of the elevator is reduced to the smallest possible volume within this shaft, so that the traction axis of the counterweight may be offset relative to its vertical mid-plane, where its gravity center is located.
  • the counterweight is conventionally made of a rectangular frame, with fillers extending across its width, and with a median plan of symmetry.
  • the offset between the vertical traction axis of the counterweight suspension cables and the vertical mid-plane of the counterweight including its gravity center produces an overhang that makes it more difficult to guide and therefore causes a faster wear of the counterweight guiding elements on its guiding rails.
  • This invention aims at correcting this disadvantage and proposes a counterweight for an elevator in which the vertical traction axis of the suspension cables is offset relative to its vertical mid-plane, wherein the counterweight is of the type comprising a rectangular peripheral frame with ballast elements and including side guide elements adapted to slide on counterweight guide rails, characterized in that said frame includes at least two separate compartments extending over its height, said compartments being adapted to accommodate each materials or ballast elements, up to defined respective total masses, wherein such respective total masses are arranged relative to each other and relative to the suspension axis so that the overall gravity center of the counterweight lies on the counterweight suspension axis.
  • Said compartments can have a common vertical partition, which is advantageously located in the vertical mid-plane of the counterweight frame.
  • Said compartments can be closed on their front and rear walls to contain a bulk ballast material up to a determined height, such as sand, steel balls, concrete, etc., but they are advantageously open on their front and rear walls to contain piled-up ballast elements or fillers.
  • Said partition between the compartments can be made of a stiff middle profile post attached to the peripheral counterweight frame, so as to form two compartments having the same size and adapted to accommodate fillers of the same width and to stiffen the counterweight frame structure, with a corresponding possibility to design lighter frame posts.
  • aligning the bearing axis and the gravity center of the counterweight ensures a perfectly free guiding of the counterweight on its guides, without any side friction to maintain the counterweight off axis and therefore without uncomfortable vibration as the elevator car moves.
  • the number of counterweight guiding elements can be reduced, as well as their cross-section and that of the corresponding guides, and the counterweight frame is no longer submitted to a parallelogram deformation.
  • the invention logically relates also to an elevator equipped with a counterweight as described above.
  • Figure 1 is a schematic elevation view of a counterweight according to the embodiment of the invention.
  • FIG 2 is a schematic elevation view of a counterweight according to the exemplary embodiment with an optimized filler load.
  • the exemplary counterweight has a classic stiff peripheral frame 1 made of two metallic side posts 3 with a U- shaped internal cross-section and of an upper 5 and a lower 7 cross- members connecting said side posts.
  • the upper cross-member 5 bears the sheave unit 9 for the counterweight hanging cables 11 in its mid- longitudinal plane, and the suspension axis is indicated by the upper vertical chain dotted line.
  • the lower cross-element 7 bears a classic bottom shock-absorbing pad 13.
  • a metallic post with an H-shaped cross-section 15 connects the lower cross-member 7 to the upper cross-member 5 in the mid-plane P of the peripheral frame.
  • This post 15 divides the peripheral frame 1 into left 17 and right 19 vertical longitudinal compartments. These compartments contain identical fillers 21 piled up on each other and held at their ends shaped as rectangular noses in the U-shaped recess of the lateral post 13 and the H of the middle post 15 respectively, within some clearance.
  • Four guiding slides 23 are attached by pairs to the opposite upper and lower side ends of the peripheral frame, respectively. The slides 23 move on counterweight guide rails 25.
  • the counterweight suspension axis is offset by a distance a from the mid-plane P and, in order to avoid any off-axis suspension stress by the counterweight on its guides 25 through the slides 23, the overall gravity center of the counterweight must be aligned with the cable suspension axis.
  • Cwt axis The detail of the filling method to align the counterweight axis containing its gravity center, referred to hereinafter as "Cwt axis", with the traction axis is illustrated above.
  • the principle is to put more weight in the right filling row to compensate for said offset a.
  • G2 Gravity center of the fillers in the right row
  • G3 Gravity center of the Cwt frame (sheave not included)
  • ml Fillers in the left row total mass
  • m2 Fillers in the right row total mass
  • m3 Cwt frame weight (without sheave)
  • the traction axis will be aligned with the gravity center of the complete counterweight.
  • This kind of program defines the number of concrete and steel fillers which have to be installed to achieve a given weight at a given height.
  • Figure 2 shows such a filling optimization of the counterweight, the gravity center of same being in line with the traction axis (in the sheave middle).
  • the steel fillers are represented at the lower level and the concrete fillers (dotted) at the upper level.
  • the theoretic calculation of the number of steel and concrete fillers for the counterweight shall now be described for the right-side compartment.
  • S area of a filler (there are two rows of fillers across the width of the counterweight)
  • f stacking factor (twisting of steel fillers according to their thickness)
  • ni and n 2 do not have to be integers to meet this condition; they will be rounded later.
  • each of the counterweights may have front and rear walls, optionally removable, as above, to contain a bulk ballast material such as sand, steel balls or concrete, which may be arranged at a determined height according to the offset between the cable suspension axis and the mid-plane of the counterweight.
  • a bulk ballast material such as sand, steel balls or concrete

Landscapes

  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

L'invention concerne un contrepoids destiné à un ascenseur dans lequel l'axe de traction vertical des câbles de suspension (11) est décalé par rapport à son plan médian (P). Ledit contrepoids est un cadre (1) périphérique rectangulaire doté d'éléments de ballast et comportant des éléments de guidage latéraux (23) destinés à glisser sur les rails (25) de guidage du contrepoids ; il se caractérise en ce que ledit cadre (1) comporte au moins deux compartiments (17, 19) séparés s'étendant sur sa hauteur. Lesdits compartiments sont conçus pour loger chacun des matériaux ou éléments de ballast (21) jusqu'à des masses totales correspondantes définies. Ces masses sont disposées les unes par rapport aux autres et par rapport à l'axe de suspension, ainsi, le centre de gravité général du contrepoids se situe sur l'axe de suspension dudit contrepoids.
PCT/IB2004/003169 2004-09-29 2004-09-29 Contrepoids pour un ascenseur a plan de traction decale par rapport au plan median vertical et a systeme de guidage equilibre, et ascenseur ainsi equipe Ceased WO2006035257A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2004/003169 WO2006035257A1 (fr) 2004-09-29 2004-09-29 Contrepoids pour un ascenseur a plan de traction decale par rapport au plan median vertical et a systeme de guidage equilibre, et ascenseur ainsi equipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2004/003169 WO2006035257A1 (fr) 2004-09-29 2004-09-29 Contrepoids pour un ascenseur a plan de traction decale par rapport au plan median vertical et a systeme de guidage equilibre, et ascenseur ainsi equipe

Publications (1)

Publication Number Publication Date
WO2006035257A1 true WO2006035257A1 (fr) 2006-04-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/003169 Ceased WO2006035257A1 (fr) 2004-09-29 2004-09-29 Contrepoids pour un ascenseur a plan de traction decale par rapport au plan median vertical et a systeme de guidage equilibre, et ascenseur ainsi equipe

Country Status (1)

Country Link
WO (1) WO2006035257A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010072657A1 (fr) * 2008-12-26 2010-07-01 Inventio Ag Contre-poids dans un système d'ascenseur
US8668056B2 (en) 2008-12-03 2014-03-11 Loiselet, S.A.R.L. Modular weighting elements
ES2521865A1 (es) * 2013-05-09 2014-11-13 Sic Lázaro, S.L. Pieza de relleno para contrapeso de ascensor
CN106516955A (zh) * 2016-12-30 2017-03-22 苏州沃诺斯精密机械有限公司 一种升降梯的对重装置及升降梯
CN112875592A (zh) * 2020-12-31 2021-06-01 乔治洛德方法研究和开发液化空气有限公司 可升降的施工系统及其操作方法
US20220041407A1 (en) * 2018-12-20 2022-02-10 Inventio Ag Counterweight for an elevator system and elevator system equipped with the counterweight

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT389862B (de) * 1987-05-07 1990-02-12 Otis Elevator Co Gegengewichts-baugruppe fuer aufzugsanlagen
EP0385255A1 (fr) * 1989-02-28 1990-09-05 Otis Elevator Company Dispositif pour compenser le poids d'un câble pour élévateur à entraînement du type à moteur linéaire
DE29824796U1 (de) * 1997-10-01 2002-08-29 Wittur AG, 85259 Wiedenzhausen Vormontierter Aufzugschacht
US20040094371A1 (en) * 2002-10-29 2004-05-20 Dario Augugliaro Elevator counter weight

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT389862B (de) * 1987-05-07 1990-02-12 Otis Elevator Co Gegengewichts-baugruppe fuer aufzugsanlagen
EP0385255A1 (fr) * 1989-02-28 1990-09-05 Otis Elevator Company Dispositif pour compenser le poids d'un câble pour élévateur à entraînement du type à moteur linéaire
DE29824796U1 (de) * 1997-10-01 2002-08-29 Wittur AG, 85259 Wiedenzhausen Vormontierter Aufzugschacht
US20040094371A1 (en) * 2002-10-29 2004-05-20 Dario Augugliaro Elevator counter weight

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8668056B2 (en) 2008-12-03 2014-03-11 Loiselet, S.A.R.L. Modular weighting elements
WO2010072657A1 (fr) * 2008-12-26 2010-07-01 Inventio Ag Contre-poids dans un système d'ascenseur
CN102264626A (zh) * 2008-12-26 2011-11-30 因温特奥股份公司 电梯设备中的对重
CN102264626B (zh) * 2008-12-26 2014-02-19 因温特奥股份公司 电梯设备中的对重
US8668054B2 (en) 2008-12-26 2014-03-11 Inventio Ag Counterweight in an elevator installation
ES2521865A1 (es) * 2013-05-09 2014-11-13 Sic Lázaro, S.L. Pieza de relleno para contrapeso de ascensor
CN106516955A (zh) * 2016-12-30 2017-03-22 苏州沃诺斯精密机械有限公司 一种升降梯的对重装置及升降梯
US20220041407A1 (en) * 2018-12-20 2022-02-10 Inventio Ag Counterweight for an elevator system and elevator system equipped with the counterweight
US11814263B2 (en) * 2018-12-20 2023-11-14 Inventio Ag Counterweight for an elevator system and elevator system equipped with the counterweight
CN112875592A (zh) * 2020-12-31 2021-06-01 乔治洛德方法研究和开发液化空气有限公司 可升降的施工系统及其操作方法

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