WO2011145042A1 - Amélioration d'un système de suspension et de butée de sécurité pour une cabine d'un ascenseur sans contrepoids - Google Patents

Amélioration d'un système de suspension et de butée de sécurité pour une cabine d'un ascenseur sans contrepoids Download PDF

Info

Publication number
WO2011145042A1
WO2011145042A1 PCT/IB2011/052140 IB2011052140W WO2011145042A1 WO 2011145042 A1 WO2011145042 A1 WO 2011145042A1 IB 2011052140 W IB2011052140 W IB 2011052140W WO 2011145042 A1 WO2011145042 A1 WO 2011145042A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembly
cabin
carriage
fixed
elevator
Prior art date
Application number
PCT/IB2011/052140
Other languages
English (en)
Inventor
Omar Galli
Marco Hoerler
Original Assignee
Kone Corporation
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 Kone Corporation filed Critical Kone Corporation
Priority to EP11731091.2A priority Critical patent/EP2571801B1/fr
Publication of WO2011145042A1 publication Critical patent/WO2011145042A1/fr

Links

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

Definitions

  • the present invention relates to the field of elevators.
  • the invention relates in particular to an improvement of a suspension and safety stop system for the cabin of an elevator of the self-supporting type without counterweight.
  • an elevator needs to be equipped with a safety brake suitable to stop the cabin in the event of overspeed or in any case of malfunction.
  • Said safety system is commonly known as "parachute" brake.
  • parachute brake In the event of intervention of said parachute brake the cabin is halted in a virtually instantaneous manner and the kinetic energy of the moving mass is released to the guide structure, causing a remarkable stress and/or strong vibrations. Moreover the onboard passengers are affected by the sharp stop.
  • the object of the present invention is to solve this problem.
  • the object in particular is to devise a system for avoiding that the intervention of the safety brake causes sharp stresses and/or vibrations on the cabin.
  • the cabin is suspended by a cable or belt by means of a unit known as carriage.
  • Said carriage essentially comprises a fixed assembly which is firmly attached to the cabin and an assembly which is elastically suspended to the fixed assembly, not being directly linked to the cabin.
  • At least one respective pulley or a respective set of pulleys are associated with said fixed assembly and with said suspended assembly of the carriage.
  • the suspension means is wound around said pulleys or sets of pulleys of the fixed assembly and of the suspended assembly.
  • the suspension means can be represented by one or more cables or belts. In a preferred embodiment said suspension means is represented by a belt.
  • the suspended assembly of the carriage is elastically connected to the fixed assembly by means of at least one spring or equivalent elastic means.
  • the two assemblies are connected by sliding pins contrasted by respective coaxial springs.
  • At least one shock-absorbing system is provided between said fixed assembly and said suspended assembly of the carriage.
  • the sharp stop of the cabin following an intervention of the parachute brake, tends to move the fixed assembly and the mobile assembly of the carriage away or towards each other, depending on the brake being operated while the cabin is descending or ascending, respectively.
  • the shock-absorbing system has a dampening function which makes the stopping of the cabin less sharp and prevents vibrations which are unpleasant for the users or which could be dangerous for the integrity of the suspension and guide system, causing permanent damage to vital parts of the elevator.
  • Fig. 1 shows schematically an elevator without counterweight, according to a preferred embodiment of the invention
  • Fig. 2 shows the detail "B" of the carriage of the elevator of Fig. 1 , in a lateral view
  • Fig. 3 shows a front view of the carriage of Fig. 2;
  • Figs. 4 and 5 show a variant of the invention with double shock absorber.
  • an elevator of the self-supporting type without counterweight which comprises a cabin 1 guided by a load-bearing structure represented essentially by lateral guides 2 connected by upper and lower crosspieces 2A, 2B.
  • the cabin 1 is suspended by a belt 3, wound around pulleys 4. More particularly the cabin 1 is suspended by a carriage 5 which supports some of the pulleys around which the belt 3 is wound.
  • the pulleys 4 are positioned in fixed and mobile sets. Fixed sets of pulleys are integral with the load-bearing structure and mobile sets are associated with the carriage 5, following the movement of the cabin 1. In the example two sets of fixed pulleys are associated respectively with the upper and lower crosspieces 2A, 2B and two sets of mobile pulleys are associated with the carriage 5.
  • each set are preferably coplanar in a plane parallel to the direction of the movement of the cabin. More preferably each set comprises a plurality of pulleys of different diameter and aligned by decreasing size, from a pulley of greater diameter to a pulley of smaller diameter, as represented in the drawings and in particular in Figs. 3 and 5.
  • the belt 3 is wound around the pulleys 4, between two fixed end points.
  • a motor (not shown) drives a drive pulley, for example one of the pulleys 4 of a fixed set integral with the crosspiece 2A or 2B.
  • the carriage 5 is shown in greater detail in Figs. 2 and 3.
  • the carriage 5 essentially comprises an assembly 5a associated with the cabin 1 and an assembly 5b which is elastically suspended to the assembly 5a, not being directly anchored to the cabin itself.
  • the fixed assembly 5a comprises a plate 6, attached to the rear wall of the cabin 1 .
  • Said plate 6 carries a first set of three coplanar pulleys 4 of decreasing diameter, as schematised in Fig. 3.
  • the suspended assembly comprises a plate 7 which carries another set of three coplanar pulleys 4 of decreasing diameter.
  • the plates 6 and 7 are connected by two pins 8A each contrasted by a coaxial spring 8, which is preloaded with a predetermined compression. In this way the system maintains an adequate tension of the belt 3 and acts as a compensation system.
  • the spring 8 opposes the plates 6 and 7 from moving away each other.
  • a shock-absorbing system connects the two assemblies 5a and 5b each other.
  • a shock- absorbing system 20 connects the fixed plate 6 to the suspended plate 7.
  • the shock-absorbing system 20 reacts with a force proportional to the relative speed which exists between the two plates 6 and 7, with the effect of dampening the vibrations of the springs 8.
  • said shock-absorbing system 20 is made with a cylinder 21 integral with the assembly 5b, and a piston 22 sliding in the cylinder 21 and having an end integral with the assembly 5a.
  • the travel of the piston 22 in the cylinder 21 is contrasted by an appropriate means (oil, gas or other) which provides the dampening effect.
  • Embodiments of the invention with more than one shock-absorbing system are possible.
  • two shock absorbers 20 are provided at the opposite sides of the carriage 5.
  • This configuration with double shock absorber is further advantageous because it provides a more accurate guide of the assembly 5b compared to the fixed assembly 5a and avoids the generation of a bending moment.

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)

Abstract

La présente invention se rapporte à un ascenseur qui comprend une structure fixe (2) et une cabine (1), un système de suspension comprenant au moins un moyen de suspension (3) enroulé sur des poulies (4) et un chariot (5) pour entraîner ladite cabine (1), ledit chariot comprenant un ensemble fixe (5a) formant un seul bloc avec la cabine (1) et un ensemble suspendu (5b). Au moins un système absorbant les chocs (20) est situé entre ledit ensemble fixe et ledit ensemble suspendu du chariot.
PCT/IB2011/052140 2010-05-17 2011-05-16 Amélioration d'un système de suspension et de butée de sécurité pour une cabine d'un ascenseur sans contrepoids WO2011145042A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11731091.2A EP2571801B1 (fr) 2010-05-17 2011-05-16 Amélioration d'un système de suspension et de butée de sécurité pour une cabine d'un ascenseur sans contrepoids

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00778/10 2010-05-17
CH7782010A CH703168A2 (it) 2010-05-17 2010-05-17 Perfezionamento di sistema di sospensione e arresto di sicurezza per cabina di un ascensore senza contrappeso.

Publications (1)

Publication Number Publication Date
WO2011145042A1 true WO2011145042A1 (fr) 2011-11-24

Family

ID=44628287

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/052140 WO2011145042A1 (fr) 2010-05-17 2011-05-16 Amélioration d'un système de suspension et de butée de sécurité pour une cabine d'un ascenseur sans contrepoids

Country Status (3)

Country Link
EP (1) EP2571801B1 (fr)
CH (1) CH703168A2 (fr)
WO (1) WO2011145042A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19632850A1 (de) * 1996-08-14 1998-02-19 Regina Koester Treibscheibenaufzug
WO2008056020A2 (fr) * 2006-11-10 2008-05-15 Kone Corporation Dispositif ménagé dans un limiteur de vitesse d'ascenseur
WO2008056026A1 (fr) * 2006-11-10 2008-05-15 Kone Corporation Ascenseur à poulie de traction sans contrepoids
EP1947048A1 (fr) * 2007-01-17 2008-07-23 Motala Hissar AB Moyen de commande d'ascenseur
WO2010037679A1 (fr) * 2008-09-30 2010-04-08 Marco Hoerler Ascenseur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19632850A1 (de) * 1996-08-14 1998-02-19 Regina Koester Treibscheibenaufzug
WO2008056020A2 (fr) * 2006-11-10 2008-05-15 Kone Corporation Dispositif ménagé dans un limiteur de vitesse d'ascenseur
WO2008056026A1 (fr) * 2006-11-10 2008-05-15 Kone Corporation Ascenseur à poulie de traction sans contrepoids
EP1947048A1 (fr) * 2007-01-17 2008-07-23 Motala Hissar AB Moyen de commande d'ascenseur
WO2010037679A1 (fr) * 2008-09-30 2010-04-08 Marco Hoerler Ascenseur

Also Published As

Publication number Publication date
EP2571801A1 (fr) 2013-03-27
EP2571801B1 (fr) 2014-05-14
CH703168A2 (it) 2011-11-30

Similar Documents

Publication Publication Date Title
US9688513B2 (en) Specific elevator anti-fall buffer based on flexible guidance
JP5161563B2 (ja) エレベータ
KR101456403B1 (ko) 엘리베이터 장치
US6193017B1 (en) Pulley-driven elevator
KR102276519B1 (ko) 엘리베이터 장치
US20130048438A1 (en) Elevator system with rope sway mitigation
US10669123B2 (en) Method for avoiding unwanted safety gear tripping in a safety stopping system of an elevator system, a safety stopping system, and an elevator system
KR101617572B1 (ko) 엘리베이터 장치
JP5636193B2 (ja) ダブルデッキエレベーター
KR20150094787A (ko) 엘리베이터 장치
US8047335B2 (en) Shock absorbing hitch
KR20160131078A (ko) 엘리베이터 장치
JP5959668B2 (ja) エレベータ装置
WO2017090145A1 (fr) Dispositif d'arrêt d'urgence pour cabine d'ascenseur
EP3337746B1 (fr) Système d'amortisseur d'ascenseur
EP2571801B1 (fr) Amélioration d'un système de suspension et de butée de sécurité pour une cabine d'un ascenseur sans contrepoids
CN113581971A (zh) 补偿引导件、配重屏、电梯以及方法
CN102583129A (zh) 一种采用浮力技术垂直型电梯坠落拯救装置
JPWO2016162946A1 (ja) エレベータ装置
JP6147858B2 (ja) エレベータ装置
WO2018179182A1 (fr) Dispositif d'ascenseur
CN215326276U (zh) 电梯轿厢
JP6362520B2 (ja) エレベータの安全装置
CN215558179U (zh) 一种基于建筑工程用电梯门结构
CN110171760B (zh) 调速器张紧机构、调速器装置及电梯

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11731091

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2011731091

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE