EP1944262A1 - Limiteur de vitesse pour ascenseurs - Google Patents

Limiteur de vitesse pour ascenseurs Download PDF

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Publication number
EP1944262A1
EP1944262A1 EP06794053A EP06794053A EP1944262A1 EP 1944262 A1 EP1944262 A1 EP 1944262A1 EP 06794053 A EP06794053 A EP 06794053A EP 06794053 A EP06794053 A EP 06794053A EP 1944262 A1 EP1944262 A1 EP 1944262A1
Authority
EP
European Patent Office
Prior art keywords
pulley
governing
steering linkage
lifts
rope
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
EP06794053A
Other languages
German (de)
English (en)
Other versions
EP1944262A4 (fr
EP1944262B1 (fr
Inventor
Luis Simal
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.)
Schlosser Luezar & Cvr Sl
Original Assignee
Schlosser Luezar & Cvr Sl
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 Schlosser Luezar & Cvr Sl filed Critical Schlosser Luezar & Cvr Sl
Publication of EP1944262A1 publication Critical patent/EP1944262A1/fr
Publication of EP1944262A4 publication Critical patent/EP1944262A4/fr
Application granted granted Critical
Publication of EP1944262B1 publication Critical patent/EP1944262B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00Other common features of elevators
    • B66B7/06Arrangements of ropes or cables
    • B66B7/062Belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044Mechanical overspeed governors

Definitions

  • the present invention refers to an overspeed governor that activates safety gear used in lifts. It has been conceived and built in order to obtain substantial advantages with respect to other existing systems.
  • Activating the safety gear is mostly done through the usual means, conventional steering linkage and overspeed governor, having to function in both UP and DOWN directions of the lift car.
  • the actuating devices on traditionally used safety gear are based on a governing pulley (1) on which the governing rope (2) engages and which, in its turn, rotates on another diverting or tension pulley (3) functioning as the rope tension system.
  • the overspeed governor is installed at the top part of the lift and the diverting pulley at the lower part or lift pit.
  • the rope is linked to the steering linkage (4) connected to the lift car (5) uniting its two stretches.
  • the governing pulley (1) includes a tripping mechanism (6) that consists in a centrifugal governor or any other known type.
  • the lift car (5) pulls along the governing rope (2), thus making this governing pulley rotate (1), generating a centrifugal force in masses (7) that rotate in connection with the pulley in question.
  • These masses (7) move radially on the pulley
  • the steering linkage is a mechanism that consists of a central rod (9), which rotates onto holes made either directly onto the car sling or onto bushings installed for this purpose and fixed to them and of one or various levers that transmit the rotation of the rod in a certain movement of the triggering component of the safety gear.
  • the governing rope (2) is connected to a lever (10) of the steering linkage in such a way that when the overspeed governor gets blocked, it makes the lever (10) move upwards or downwards.
  • the steering linkage rod (9) rotates so as to transmit the movement to the lever (10) corresponding to the safety gear situated at the other side of the lift car.
  • the overspeed governor consists of a conventional governing pulley and a diverting pulley, which functions as a tensioner, both mounted on the same plane and with a different rotating axis disposed on a supporting structure installed on top of the lift car structure.
  • a conventional governing pulley and a diverting pulley which functions as a tensioner, both mounted on the same plane and with a different rotating axis disposed on a supporting structure installed on top of the lift car structure.
  • some perforations are made with the aim of installing an auxiliary rod or lever in charge of transmitting the pressure to the safety gear by means of the corresponding steering linkage.
  • This auxiliary rod joins the ends of the centrifugal masses with either a steering linkage lever or with a connecting rod that functions in connection with the steering linkage rod responsible for simultaneously activating both safety gears arranged at either one side or the other of the lift car. In this arrangement it is necessary to implement new parts that connect the governor to the steering linkage, as is the case of the auxiliary rod.
  • Document 200101202 does neither require ropes nor pulleys but is based on the use of a wheel with an incorporated centrifugal system mounted onto the lift car, which rotates onto the guide rail.
  • the centre of this wheel is connected to the steering linkage lever arranged like an articulated quadrangle in which two opposite sides are linked to the moving part of the safety gear and to the wheel respectively.
  • the centre of the wheel then initiates an upward or downward movement, depending on the actuating direction, and therefore the steering linkage lever, thus activating the steering linkage.
  • it is necessary to implement new parts that connect the overspeed governor to the steering linkage or else use a specific steering linkage for this type of overspeed governor.
  • the main disadvantages of the current overspeed governors are the connection between the overspeed governor rope (2) and the steering linkage (4,9,10), which requires the manufacturing of car sling parts made to measure, the size of the overspeed governors as well as assembly time necessary to install pulleys, ropes, adjusting the rope tension between a maximum and a minimum, etc.
  • Another disadvantage of the rope governors is the possible slackening of the components that guarantee a minimum traction force and the reduction of the friction coefficients between the rope and the pulley or between the wheel and guide elements that may seriously affect the proper functioning of the overspeed governor.
  • Another drawback of the rope governors is the use of an encoder as the method of knowing the position of the lift car given the fact that with rope systems there always exist small amounts of sliding, which may lead to erroneous information.
  • the invented device has a new design, which makes it possible to use an overspeed governor that uses a toothed timing belt (11) or chain on incorporating a clutch (12,15) that limits the blocking force and therefore the traction of the belt and /or place the axis of the governing pulley (1) and therefore of the governor onto the steering linkage rod (9). All this is extremely simple to achieve and it is easy to manufacture the package.
  • the overspeed governor is based on two aspects that may be materialize together or separately:
  • the overspeed governor object of the invention, consists of a toothed pulley (13) on which a toothed timing belt (11) or chain, mounted onto a pulley, engages.
  • the pulley rotates on a hollow tube (14) or fixed axis.
  • a centrifugal or inertial governing system is installed on the pulley (6,7) like the ones already known technically (of this type of governors as well as of the ones in other sectors).
  • the governing system (6,7) abuts against a stop (8).
  • This stop is concentric with the governing pulley and joins the steering linkage in such a way that the rotation of the stop (8) causes the steering linkage (4) to move by means of the rotation of the steering linkage rod (9).
  • a clutch (12,15) which allows the toothed pulley to continue to rotate.
  • the clutch (12,15) may be set out between the stop (8) of the governing system and the actuating of the steering linkage or on another part, such as for example between the outer toothed wheel (16) of the governing pulley and its inner part.
  • tension is not necessary to ensure the safety gear performance.
  • the belt (11) is perfectly fastened at both ends, both on the top and on the bottom part.
  • the system is fitted out with one or several diverting pulleys (17). These pulleys are positioned on a plate (18) connected to a hollow tube (14) or axis on which the pulley rotates (or another part of the car sling or lift shaft, depending on the arrangement needed).
  • the second aspect consists in using a hollow tube (14) as a rotating axis on the outer part of which the governing pulley (1) is installed and on the inner part of which the steering linkage rod (9) engages.
  • the rest of the components such as the stop (8) and/or the clutch (12,15) also use this hollow tube as rotating axis.
  • the overspeed governor object of the invention, has a hollow tube (14) connected to a plate (18) in which a hole has been made for the tube to pass through.
  • a governing pulley (1) with an toothed outer wheel (13,16) is installed so that a belt (11) placed in the lift shaft couples onto this pulley.
  • the rotation of the pulley is produced by means of one or several bearings positioned on the outside of the tube.
  • a centrifugal system (6) On one side of the pulley a centrifugal system (6), which moves some masses (7) as a consequence of the rotation of the pulley, is installed.
  • a spring (19) is installed that puts up resistance to this radial movement, which is overcome as a consequence of the centrifugal force.
  • a disc (20) is installed on the same tube (14) . It has been emptied on the inside in an interior diameter. On its perimetric part there are three radial slanted holes placed on top of the centrifugal masses (7) so that in their radial movement they end up sticking out of the groove of the disc (20), abutting in the part where there is no groove causing the disc (20) to rotate in connection with the pulley (13).
  • this disc (20) On top of this disc (20), another disc (21) is placed, which, along with the first disc constitutes a clutch (12) by means of the installation of round-shaped projections (22) placed in the holes made in the first disc (20) in such a way that the first disc (20) drags along the second one (21), always with limited pressure because of the compression of the projections.
  • the second disc which in its central part is united to the steering linkage rod (9) by means of a pin (23), moves the rod (9) causing direct activating without any intermediate safety gear components.
  • separating fittings (24) as well as radial pins (25) are mounted between the first disc (209 and the second disc (21), which constitute the clutch in such a way that the governor forms a solid block that is mounted on the steering linkage rod (9).
  • a plate (18) On the far end of the tube on which the pulley (1) is mounted, a plate (18) may be installed in order to make its anchoring to the car sling or bushing easier. This plate (18) can be the lid of the safety gear.
  • two diverting pulleys (17) are installed vertically (17) to obtain a greater amount of coupled teeth.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Pulleys (AREA)
EP06794053.6A 2005-07-04 2006-06-29 Limiteur de vitesse pour ascenseurs Not-in-force EP1944262B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200501527U ES1060583Y (es) 2005-07-04 2005-07-04 Limitador de velocidad para aparatos de elevacion
PCT/ES2006/000378 WO2007003671A1 (fr) 2005-07-04 2006-06-29 Limiteur de vitesse pour ascenseurs

Publications (3)

Publication Number Publication Date
EP1944262A1 true EP1944262A1 (fr) 2008-07-16
EP1944262A4 EP1944262A4 (fr) 2011-07-20
EP1944262B1 EP1944262B1 (fr) 2017-01-11

Family

ID=35069797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06794053.6A Not-in-force EP1944262B1 (fr) 2005-07-04 2006-06-29 Limiteur de vitesse pour ascenseurs

Country Status (3)

Country Link
EP (1) EP1944262B1 (fr)
ES (1) ES1060583Y (fr)
WO (1) WO2007003671A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103318720A (zh) * 2012-03-23 2013-09-25 株式会社日立制作所 电梯设备
EP2913287A1 (fr) * 2014-02-26 2015-09-02 Otis Elevator Company Régulateur pour commander la vitesse d'un objet hissé par rapport à un élément de guidage
EP3068717A1 (fr) * 2013-11-15 2016-09-21 Sapa Système d'ascenseur à équilibrage réduit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415343A (en) * 1967-04-18 1968-12-10 Alimak Verken Ab Catch apparatus for the cages of scaffold elevators and the like
DE2821547A1 (de) * 1978-05-17 1979-11-22 Ind Aufzuege Gmbh Antrieb fuer geschwindigkeitsbegrenzer und den zugeordneten sicherungsmitteln bei aufzuegen verschiedenster bauart
US5349854A (en) * 1992-05-01 1994-09-27 Otis Elevator Company Elevator speed and position indicating device
JP2004142858A (ja) * 2002-10-23 2004-05-20 Mitsubishi Electric Corp エレベータのかご位置検出装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5052523A (en) 1991-02-14 1991-10-01 Otis Elevator Company Elevator car-mounted govenor system
DE29922874U1 (de) 1999-11-18 2000-03-16 Bode Aufzuege Gmbh Bongers & D Begrenzerrad für Geschwindigkeitsbegrenzer
JP5155505B2 (ja) * 2000-04-27 2013-03-06 インベンテイオ・アクテイエンゲゼルシヤフト エレベーター乗客の避難用装置
JP3944482B2 (ja) 2001-12-11 2007-07-11 三菱電機株式会社 エレベーター装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415343A (en) * 1967-04-18 1968-12-10 Alimak Verken Ab Catch apparatus for the cages of scaffold elevators and the like
DE2821547A1 (de) * 1978-05-17 1979-11-22 Ind Aufzuege Gmbh Antrieb fuer geschwindigkeitsbegrenzer und den zugeordneten sicherungsmitteln bei aufzuegen verschiedenster bauart
US5349854A (en) * 1992-05-01 1994-09-27 Otis Elevator Company Elevator speed and position indicating device
JP2004142858A (ja) * 2002-10-23 2004-05-20 Mitsubishi Electric Corp エレベータのかご位置検出装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007003671A1 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103318720A (zh) * 2012-03-23 2013-09-25 株式会社日立制作所 电梯设备
EP3068717A1 (fr) * 2013-11-15 2016-09-21 Sapa Système d'ascenseur à équilibrage réduit
EP3068717B1 (fr) * 2013-11-15 2024-05-08 Sapa Système d'ascenseur à équilibrage réduit
EP2913287A1 (fr) * 2014-02-26 2015-09-02 Otis Elevator Company Régulateur pour commander la vitesse d'un objet hissé par rapport à un élément de guidage
WO2015130577A3 (fr) * 2014-02-26 2015-11-12 Otis Elevator Company Régulateur de vitesse permettant de réguler la vitesse d'un objet hissé par rapport à un élément de guidage
US9919897B2 (en) 2014-02-26 2018-03-20 Otis Elevator Company Governor for controlling the speed of a hoisted object relative to a guide member

Also Published As

Publication number Publication date
ES1060583Y (es) 2006-01-16
EP1944262A4 (fr) 2011-07-20
WO2007003671A1 (fr) 2007-01-11
EP1944262B1 (fr) 2017-01-11
ES1060583U (es) 2005-10-01

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