WO2012123607A1 - Dispositif de protection contre le mouvement incontrôlé d'une cabine d'ascenseur et limitateur de vitesse d'un tel dispositif - Google Patents

Dispositif de protection contre le mouvement incontrôlé d'une cabine d'ascenseur et limitateur de vitesse d'un tel dispositif Download PDF

Info

Publication number
WO2012123607A1
WO2012123607A1 PCT/ES2012/070159 ES2012070159W WO2012123607A1 WO 2012123607 A1 WO2012123607 A1 WO 2012123607A1 ES 2012070159 W ES2012070159 W ES 2012070159W WO 2012123607 A1 WO2012123607 A1 WO 2012123607A1
Authority
WO
WIPO (PCT)
Prior art keywords
speed limiter
pulley
tilting support
movement
toothed crown
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/ES2012/070159
Other languages
English (en)
Spanish (es)
Inventor
Martí ESCOFET ESTEVE
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.)
Aplicaciones Electromecanicas Gervall SA
Original Assignee
Aplicaciones Electromecanicas Gervall SA
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 Aplicaciones Electromecanicas Gervall SA filed Critical Aplicaciones Electromecanicas Gervall SA
Priority to EP12758222.9A priority Critical patent/EP2687473B1/fr
Publication of WO2012123607A1 publication Critical patent/WO2012123607A1/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
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044—Mechanical overspeed governors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces

Definitions

  • Protection device against uncontrolled movement of a booth of an elevator and speed limiter that includes such a device
  • the purpose of the present invention patent application is to register a protection device against uncontrolled movement of a cabin of an elevator capable of detecting the movement of the elevator that incorporates notable innovations and advantages.
  • the invention proposes the development of a device for detecting the uncontrolled movement of an elevator car, intended to be coupled in a speed limiter for an elevator, thereby increasing the safety of the elevator, elevator or the like.
  • the present invention has been developed in order to provide a device for detecting the movement of a lift cabin that resolves the aforementioned drawbacks, also providing additional advantages that will be apparent from the description that follows.
  • the electric detector is able to send an activation signal. to a control unit associated with the elevator for the actuation of means which it deems convenient to stop the elevator car.
  • the tilting support includes tensioning means for coupling to the speed limiter, such that when the locking mechanism has no electrical voltage from the electromagnet or solenoid, such a mechanism will impact the toothed crown and the system will be able to detect the uncontrolled movement in an effective and reliable way.
  • the locking mechanism comprises a locking piece attachable to the crown gear.
  • guiding means are provided in the tilting support by which the part moves linearly lock
  • These guiding means may consist of at least one grooved portion made in the body of the tilting support through which a guide body fixed in the locking piece passes.
  • the tilting support has an elongated section that has an arcuate recess in its upper flange, in which the elongated section is capable of abutting with an electric detector switch, which allows to detect uncontrolled movement.
  • the locking piece has the end facing the toothed crown with a tooth-like shape, so that it facilitates the locking of the locking element with the toothed crown.
  • the speed limiter comprises a bench body with two facing wings, which comprise stop means for limiting the angular travel of the tilting support.
  • stop means may consist of an arcuate path groove practiced on one of the fins of the bench body.
  • Figure 1. It is a front elevation view of a speed limiter for an elevator that includes the uncontrolled movement protection device according to the present invention
  • Figure 2. It is a front elevation view of the speed limiter with the detector device of the invention.
  • Figure 3. It is an exploded side elevation view of the speed limiter and the detector device shown in the previous figures; Y
  • Figure 4.- It is a sectioned side elevation view of the limiter with the detection device according to the invention.
  • a speed limiter As shown in the attached figures, there is a speed limiter, indicated generally with reference (1), which comprises a pulley (2) on an axis (3) in which a cable or the like slides ( C) and retaining means linked to the pulley (2), this speed limiter being provided in addition to a device for detecting the movement of a lift cabin described below. He Operation of the retention means may be the same as described in Spanish Patent No. ES 2306623.
  • This detection device comprises a toothed crown (5) which is coupled in a integral manner to the pulley (2) of the limiter (in an alternative embodiment it can be an integral part of the pulley itself), a tilting support (6) attachable to the shaft ( 3) of the speed limiter (1) such that it performs a tilting movement with respect to said axis (3), as indicated by the arrow (f) in Figure 2, which includes a locking mechanism that acts on the crown gear (5) and an electric detector (7) associated with the locking mechanism and the movement path of the tilting support (6).
  • the tilting support (6) is constituted by an elongated body that is fixed at its top by means of a hole through which the shaft (3) passes.
  • the tilting support When the tilting support has made a predetermined angular displacement stroke caused by the movement of the pulley (2) and therefore of the elevator car, such as a distance defined by a maximum angle, it is capable of sending a signal of motion detection through an electrical switch (7) and subsequently cause a mechanical interlock of the speed limiter, thereby causing the cable or similar of the power limiter to be pulled speed and consequently the coining of the parachute (retention means) provided.
  • the tilting support (6) may optionally include tensioning means that are coupled to the housing body (4) of the speed limiter (1).
  • the locking mechanism mainly comprises a locking piece (10) that can be coupled to the gear ring (5) to perform its locking, a trigger (11) linked to the electromagnetic actuator (8) (electromagnet, coil or similar). ) which is attached to the locking piece (10).
  • the trigger (11) has an axis that is externally provided with a coil spring (not represented for reasons of clarity).
  • Guiding means are provided in the tilting support by which the locking piece moves linearly. Specifically, there are provided two grooved portions (12) practiced alignedly in the body of the tilting support (6) through which a guide body (13) fixed to the locking piece (10) passes in each of them.
  • This guide body (13) consists in the present embodiment in a metal cylindrical body fixed by means of screw elements.
  • the tilting support (6) additionally has an elongated section (60), connected to it by screws, which has an arcuate recess (61) centered on its upper flange, in which the elongated section (60) is susceptible butt with a switch (70) protruding from the bottom of the electric switch (7).
  • This elongated section (60) has two mechanical stops (14) that are fixed to the tilting support (6).
  • the tensioning means mentioned above may be coupled to the elongated section (60) of the tilting support (6).
  • the locking piece (10) has the end (101) facing the toothed crown (5) a tooth-like shape that facilitates the coupling in the space between teeth of the toothed crown (5).
  • the bench body (4) it is constituted by two fins (4a, 4b) facing each other between which the shaft (3) is supported, which include stop means to limit the angular travel of the tilting support (6), which they consist of a groove (40) with an arcuate path practiced on one of the fins of the bench body.
  • the two mechanical stops (14) define the maximum travel of the tilting support with respect to a groove (40).
  • the flap (4a) having the aforementioned groove (40) may include a pin or the like in which the tensioning means are fastened in the case of being present.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Mechanical Control Devices (AREA)
  • Transmission Devices (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

L'invention concerne un dispositif de protection contre le mouvement incontrôlé dans une cabine d'ascenseur, conçu pour se coupler à un limitateur de vitesse qui présente une poulie (2) sur un axe (3), comprenant: une couronne dentée (5) reliée à la poulie; un support à bascule (6) couplé à l'axe (3) qui réalise un déplacement à bascule par rapport à l'axe (3), ainsi qu'un mécanisme de blocage qui agit sur la couronne dentée (5), au moyen d'un électro-aimant, solénoïde ou similaire; et un détecteur électrique, associé au mécanisme de blocage et à la trajectoire de mouvement du support à bascule (6), qui dans une condition dans laquelle les moyens de blocage agissent sur la couronne dentée (5), lorsque le support à bascule (6) a réalisé une course de déplacement angulaire, envoie un signal d'activation à une unité de commande associée à l'ascenseur pour actionner des moyens permettant de retenir la cabine d'ascenseur.
PCT/ES2012/070159 2011-03-16 2012-03-12 Dispositif de protection contre le mouvement incontrôlé d'une cabine d'ascenseur et limitateur de vitesse d'un tel dispositif Ceased WO2012123607A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12758222.9A EP2687473B1 (fr) 2011-03-16 2012-03-12 Dispositif de protection contre le mouvement incontrôlé d'une cabine d'ascenseur et limitateur de vitesse d'un tel dispositif

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201130368A ES2363311B1 (es) 2011-03-16 2011-03-16 Dispositivo de protección contra el movimiento incontrolado de una cabina de un elevador y limitador de velocidad que incluye tal dispositivo
ESP201130368 2011-03-16

Publications (1)

Publication Number Publication Date
WO2012123607A1 true WO2012123607A1 (fr) 2012-09-20

Family

ID=44261766

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2012/070159 Ceased WO2012123607A1 (fr) 2011-03-16 2012-03-12 Dispositif de protection contre le mouvement incontrôlé d'une cabine d'ascenseur et limitateur de vitesse d'un tel dispositif

Country Status (3)

Country Link
EP (1) EP2687473B1 (fr)
ES (1) ES2363311B1 (fr)
WO (1) WO2012123607A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105502126B (zh) * 2016-01-28 2017-10-10 浙江屹立电梯有限公司 离合式电梯限速器
CN209143433U (zh) * 2018-03-15 2019-07-23 杭州沪宁电梯部件股份有限公司 绳轮限速器触发机构
DE202019000697U1 (de) 2019-02-13 2019-02-28 K.A. Schmersal Gmbh & Co. Kg Modulare Montagevorrichtung für einen Positionsschalter zur Montage an einem Geschwindigkeitsbegrenzer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212782A (en) * 1987-11-25 1989-08-02 Poon Otto L A lift with safety device
US4898263A (en) * 1988-09-12 1990-02-06 Montgomery Elevator Company Elevator self-diagnostic control system
WO2005066058A2 (fr) * 2004-01-09 2005-07-21 Kone Corporation Ensemble ascenseur
EP1780160A1 (fr) * 2004-04-30 2007-05-02 Mitsubishi Denki Kabushiki Kaisha Système de freinage en cas de problèmes d"ascenseur
ES2306623A1 (es) 2008-05-05 2008-11-01 Aplicaciones Electromecanicas Gervall S.A. Limitador de velocidad con enclavamiento bisentido.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4923055A (en) * 1989-01-24 1990-05-08 Delaware Capital Formation, Inc. Safety mechanism for preventing unintended motion in traction elevators

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212782A (en) * 1987-11-25 1989-08-02 Poon Otto L A lift with safety device
US4898263A (en) * 1988-09-12 1990-02-06 Montgomery Elevator Company Elevator self-diagnostic control system
WO2005066058A2 (fr) * 2004-01-09 2005-07-21 Kone Corporation Ensemble ascenseur
EP1780160A1 (fr) * 2004-04-30 2007-05-02 Mitsubishi Denki Kabushiki Kaisha Système de freinage en cas de problèmes d"ascenseur
ES2306623A1 (es) 2008-05-05 2008-11-01 Aplicaciones Electromecanicas Gervall S.A. Limitador de velocidad con enclavamiento bisentido.

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; AN 1990-090824, XP003031550, RETRIEVED *
DATABASE WPI Derwent World Patents Index; AN 2005-796878, XP003031549, RETRIEVED *
See also references of EP2687473A4

Also Published As

Publication number Publication date
EP2687473A1 (fr) 2014-01-22
ES2363311B1 (es) 2012-06-05
ES2363311A1 (es) 2011-07-29
ES2363311A8 (es) 2011-09-13
EP2687473B1 (fr) 2017-01-04
EP2687473A4 (fr) 2014-11-12

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