EP2514704A1 - Lift overspeed governor rope tensioning device - Google Patents

Lift overspeed governor rope tensioning device Download PDF

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Publication number
EP2514704A1
EP2514704A1 EP12161367A EP12161367A EP2514704A1 EP 2514704 A1 EP2514704 A1 EP 2514704A1 EP 12161367 A EP12161367 A EP 12161367A EP 12161367 A EP12161367 A EP 12161367A EP 2514704 A1 EP2514704 A1 EP 2514704A1
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EP
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Prior art keywords
cable
pulley
cable tensioner
fixed
elevator
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EP12161367A
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German (de)
French (fr)
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EP2514704B1 (en
Inventor
Antoine Prouteau
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OCTE
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    • 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
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension

Definitions

  • the invention relates to a speed limiter cable tensioner for an elevator.
  • Elevators are equipped with a speed limiter including a cable passing on a pulley at the bottom of the elevator shaft.
  • the pulley is biased downwards by a cable tensioner which is usually of two types.
  • a load is placed at one end of a lever whose other end is articulated on a support fixed to the guide of the elevator.
  • the pulley is pivotally mounted on an axis located at an intermediate point of the lever. This tensioner can not be fixed on a round guide, and because of the pivoting of the arm, it may result in misalignment of the pulley relative to the limiter.
  • the document JP10316327 discloses a speed limiter cable tensioner for an elevator, carrying a pulley through which a speed limiter cable passes, having a portion fixed to the ground at the bottom of the elevator shaft and constituted by a vertical guide, and a moving part carrying said pulley and rollers rolling on said guide.
  • the tensioner fixed to the ground and flat: the load is directly applied on the axis of the pulley.
  • the pulley is housed in a narrow envelope whose mass is a function of height. When the mass must be greater than a value of the order of 26 kg, the height of the envelope causes interference with the elevator calliper.
  • An object of the invention is to provide a cable tensioner which does not have the disadvantages of known cable tensioners.
  • Another object of the invention is to provide a cable tensioner whose mass is adaptable depending on the elevator installation.
  • the subject of the invention is a speed limiter cable tensioner for an elevator, carrying a pulley through which a speed limiter cable passes, comprising a fixed part, fixed to the ground, at the bottom of the elevator shaft, and comprising a vertical rail, and a movable part, carrying said pulley, and rollers sliding in said rail of the fixed part, characterized in that the vertical rail of the fixed part has a C-section in which said rollers of the moving part slide .
  • the mobile part consists of an armature in which are stacked plates constituting the mass ensuring the tension of the cable.
  • the plates are removable to adjust the mass of the cable tensioner.
  • the mobile part carries a ramp adapted, in case of relaxation or breakage of the cable, to actuate a safety contact carried by the fixed part.
  • the armature has a horizontal section C.
  • the vertical bulk of the moving part is equal to the nominal diameter of the pulley increased by 41 mm.
  • the elevator speed limiter cable tensioner has a stationary portion 1 and a movable portion 2.
  • the fixed part 1 consists essentially of a base 3 fixed to the ground, at the bottom of the elevator shaft, and a vertical C-shaped rail 4 in which rollers of the movable part 2 slide.
  • the movable part 2 essentially comprises a frame 5 of horizontal section C in which are stacked plates 6 of heavy metal constituting the adjustable mass of the cable tensioner. Outside the large face 10 of the armature 5 is disposed the pulley 7 in the groove of which the cable 8 passes. The axis 9 of the pulley 7 is placed substantially in the center of the large face 10 of the frame.
  • the large face 10 of the frame is rectangular, the diameter of the pulley being substantially equal to the width of the large face 10 of the frame 5, and slightly less than the height of the large face 10. Thus, in height and in width, the size of the cable tensioner is barely greater than that of the pulley 7.
  • the armature 5 bears on one of its small faces 11 rollers which slide in the rail 4 in C of the fixed part 1.
  • the small face 11 of the frame 5 of the movable part 2 carries a ramp 12, able to actuate a safety contact 13 carried by the fixed part 1.
  • the weight of the moving part 2 of the speed limiter cable tensioner of the elevator stretches the cable 8.
  • the moving part 2 goes down and the ramp 12 actuates the safety contact 13 which cuts the safety chain of the elevator and prohibits its operation.
  • the cable tensioner according to the invention ensures the tensioning of the cable 8 of the speed limiter of an elevator in case of overspeed of the elevator car.
  • the cable tensioner is very compact.
  • the mass ensuring the tension of the cable 8 is not more bulky vertically than the nominal diameter of the pulley 7 increased by 41 mm, which allows the provision of the cable tensioner in the bottom of the elevator shaft, without risk of interference with cabin stirrup 14.
  • the speed limiter cable tensioner is designed for a pulley with a diameter of 200 mm or 300 mm.

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  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

The device has a fixed part comprising a base (3) fixed to a floor in bottom of a lift shaft. A mobile part carries a pulley (7) in which an overspeed governor cable passes. The mobile part comprises rollers sliding in a C-shaped section of a vertical rail (4) of the fixed part. Plates (6) are stacked in a frame (5) of the mobile part, and are removable for adjusting the mass of the device. The mobile part has a vertical dimension equal to nominal diameter of the pulley, which is increased by 41 mm.

Description

L'invention concerne un tendeur de câble de limiteur de vitesse pour ascenseur.The invention relates to a speed limiter cable tensioner for an elevator.

Les ascenseurs sont équipés d'un limiteur de vitesse comprenant notamment un câble passant sur une poulie en bas de gaine de l'ascenseur. La poulie est sollicitée vers le bas par un tendeur de câble qui est usuellement de deux types.Elevators are equipped with a speed limiter including a cable passing on a pulley at the bottom of the elevator shaft. The pulley is biased downwards by a cable tensioner which is usually of two types.

Tout d'abord le tendeur sur guide : une charge est placée à une extrémité d'un levier dont l'autre extrémité est articulée sur un support fixé au guide de l'ascenseur. La poulie est montée pivotante sur un axe situé en un point intermédiaire du levier. Ce tendeur ne peut pas être fixé sur un guide rond, et du fait du pivotement du bras, il peut en résulter un défaut d'alignement de la poulie par rapport au limiteur.First of all the tensioner on guide: a load is placed at one end of a lever whose other end is articulated on a support fixed to the guide of the elevator. The pulley is pivotally mounted on an axis located at an intermediate point of the lever. This tensioner can not be fixed on a round guide, and because of the pivoting of the arm, it may result in misalignment of the pulley relative to the limiter.

Le document JP10316327 décrit un tendeur de câble de limiteur de vitesse pour ascenseur, portant une poulie dans laquelle passe un câble du limiteur de vitesse, comportant une partie fixée au sol en bas de la gaine d'ascenseur et constituée par un guide vertical, et une partie mobile portant ladite poulie et des galets roulant sur ledit guide.The document JP10316327 discloses a speed limiter cable tensioner for an elevator, carrying a pulley through which a speed limiter cable passes, having a portion fixed to the ground at the bottom of the elevator shaft and constituted by a vertical guide, and a moving part carrying said pulley and rollers rolling on said guide.

Ensuite, le tendeur fixé au sol et plat : la charge est directement appliquée sur l'axe de la poulie. La poulie est logée dans une enveloppe étroite dont la masse est fonction de la hauteur. Lorsque la masse doit être supérieure à une valeur de l'ordre de 26 kg, la hauteur de l'enveloppe entraîne une interférence avec l'étrier de cabine de l'ascenseur.Then, the tensioner fixed to the ground and flat: the load is directly applied on the axis of the pulley. The pulley is housed in a narrow envelope whose mass is a function of height. When the mass must be greater than a value of the order of 26 kg, the height of the envelope causes interference with the elevator calliper.

Un but de l'invention est de proposer un tendeur de câble qui ne présente pas les inconvénients des tendeurs de câble connus.An object of the invention is to provide a cable tensioner which does not have the disadvantages of known cable tensioners.

Un autre but de l'invention est de proposer un tendeur de câble dont la masse soit adaptable en fonction de l'installation d'ascenseur.Another object of the invention is to provide a cable tensioner whose mass is adaptable depending on the elevator installation.

L'invention a pour objet un tendeur de câble de limiteur de vitesse pour ascenseur, portant une poulie dans laquelle passe un câble du limiteur de vitesse, comportant une partie fixe, fixée au sol, en bas de la gaine d'ascenseur, et comportant un rail vertical, et une partie mobile, portant ladite poulie, et des galets coulissant dans ledit rail de la partie fixe, caractérisé en ce que le rail vertical de la partie fixe a une section en C dans laquelle coulissent lesdits galets de la partie mobile.The subject of the invention is a speed limiter cable tensioner for an elevator, carrying a pulley through which a speed limiter cable passes, comprising a fixed part, fixed to the ground, at the bottom of the elevator shaft, and comprising a vertical rail, and a movable part, carrying said pulley, and rollers sliding in said rail of the fixed part, characterized in that the vertical rail of the fixed part has a C-section in which said rollers of the moving part slide .

Avantageusement, la partie mobile est constituée d'une armature dans laquelle sont empilées des plaques constituant la masse assurant la tension du câble.Advantageously, the mobile part consists of an armature in which are stacked plates constituting the mass ensuring the tension of the cable.

De préférence, les plaques sont amovibles pour ajuster la masse du tendeur de câble.Preferably, the plates are removable to adjust the mass of the cable tensioner.

Avantageusement, la partie mobile porte une rampe apte, en cas de détente ou de rupture du câble, à actionner un contact de sécurité porté par la partie fixe.Advantageously, the mobile part carries a ramp adapted, in case of relaxation or breakage of the cable, to actuate a safety contact carried by the fixed part.

De préférence, l'armature a une section horizontale en C.Preferably, the armature has a horizontal section C.

De préférence, l'encombrement vertical de la partie mobile est égal au diamètre nominal de la poulie augmenté de 41 mm.Preferably, the vertical bulk of the moving part is equal to the nominal diameter of the pulley increased by 41 mm.

L'invention est décrite ci-après avec référence au dessin annexé dans lequel :

  • La fig. 1 est une vue en perspective du tendeur de câble de limiteur de vitesse pour ascenseur selon un mode de réalisation de l'invention ;
  • La fig. 2 est une vue en perspective de l'autre côté du tendeur de câble de la fig. 1 ;
  • La fig. 3 est une vue de côté du tendeur de câble en position de fonctionnement ;
  • La fig. 4 est une vue éclatée du tendeur de câble de la fig. 1.
The invention is described below with reference to the accompanying drawing in which:
  • The Fig. 1 is a perspective view of the elevator speed limiter cable tensioner according to one embodiment of the invention;
  • The Fig. 2 is a perspective view of the other side of the cable tensioner the Fig. 1 ;
  • The Fig. 3 is a side view of the cable tensioner in the operating position;
  • The Fig. 4 is an exploded view of the cable tensioner of the Fig. 1 .

Le tendeur de câble de limiteur de vitesse pour ascenseur comporte une partie fixe 1 et une partie mobile 2.The elevator speed limiter cable tensioner has a stationary portion 1 and a movable portion 2.

La partie fixe 1 se compose essentiellement d'un socle 3 fixé au sol, en bas de la gaine d'ascenseur, et d'un rail 4 en C, vertical, dans lequel coulissent des galets de la partie mobile 2.The fixed part 1 consists essentially of a base 3 fixed to the ground, at the bottom of the elevator shaft, and a vertical C-shaped rail 4 in which rollers of the movable part 2 slide.

La partie mobile 2 comprend essentiellement une armature 5 à section horizontale en C dans laquelle sont empilées des plaques 6 de métal lourd constituant la masse réglable du tendeur de câble. A l'extérieur de la grande face 10 de l'armature 5 est disposée la poulie 7 dans la gorge de laquelle passe le câble 8. L'axe 9 de la poulie 7 est placé pratiquement au centre de la grande face 10 de l'armature. La grande face 10 de l'armature est rectangulaire, le diamètre de la poulie étant pratiquement égal à la largeur de la grande face 10 de l'armature 5, et légèrement inférieur à la hauteur de la grande face 10. Ainsi, en hauteur et en largeur, l'encombrement du tendeur de câble est à peine supérieur à celui de la poulie 7.The movable part 2 essentially comprises a frame 5 of horizontal section C in which are stacked plates 6 of heavy metal constituting the adjustable mass of the cable tensioner. Outside the large face 10 of the armature 5 is disposed the pulley 7 in the groove of which the cable 8 passes. The axis 9 of the pulley 7 is placed substantially in the center of the large face 10 of the frame. The large face 10 of the frame is rectangular, the diameter of the pulley being substantially equal to the width of the large face 10 of the frame 5, and slightly less than the height of the large face 10. Thus, in height and in width, the size of the cable tensioner is barely greater than that of the pulley 7.

L'armature 5 porte sur l'une de ses petites faces 11 des galets qui coulissent dans le rail 4 en C de la partie fixe 1.The armature 5 bears on one of its small faces 11 rollers which slide in the rail 4 in C of the fixed part 1.

A sa partie inférieure, la petite face 11 de l'armature 5 de la partie mobile 2 porte une rampe 12, apte à actionner un contact de sécurité 13 porté par la partie fixe 1.At its lower part, the small face 11 of the frame 5 of the movable part 2 carries a ramp 12, able to actuate a safety contact 13 carried by the fixed part 1.

Le poids de la partie mobile 2 du tendeur de câble de limiteur de vitesse de l'ascenseur tend le câble 8. Lorsque le câble 8 est détendu ou rompu, c'est-à-dire lorsque le limiteur de vitesse et le parachute sont dans l'incapacité de fonctionner, la partie mobile 2 descend et la rampe 12 actionne le contact de sécurité 13 qui coupe la chaîne de sécurité de l'ascenseur et interdit son fonctionnement.The weight of the moving part 2 of the speed limiter cable tensioner of the elevator stretches the cable 8. When the cable 8 is relaxed or broken, that is to say when the speed limiter and the parachute are in the inability to operate, the moving part 2 goes down and the ramp 12 actuates the safety contact 13 which cuts the safety chain of the elevator and prohibits its operation.

Le tendeur de câble selon l'invention assure la mise sous tension du câble 8 du limiteur de vitesse d'un ascenseur en cas de survitesse de la cabine d'ascenseur. Le tendeur de câble est très compact. La masse assurant la tension du câble 8 n'est pas plus encombrante verticalement que le diamètre nominal de la poulie 7 augmenté de 41 mm, ce qui permet la disposition du tendeur de câble dans le fond de gaine d'ascenseur, sans risque d'interférence avec l'étrier de cabine 14.The cable tensioner according to the invention ensures the tensioning of the cable 8 of the speed limiter of an elevator in case of overspeed of the elevator car. The cable tensioner is very compact. The mass ensuring the tension of the cable 8 is not more bulky vertically than the nominal diameter of the pulley 7 increased by 41 mm, which allows the provision of the cable tensioner in the bottom of the elevator shaft, without risk of interference with cabin stirrup 14.

La disposition de plaques amovibles 6 dans l'armature 5 permet d'ajuster la masse du tendeur de câble, et donc l'effort sur le câble du limiteur de vitesse, en fonction de l'installation d'ascenseur.The provision of removable plates 6 in the armature 5 makes it possible to adjust the mass of the cable tensioner, and therefore the force on the cable of the speed limiter, according to the elevator installation.

A titre d'exemple, le tendeur de câble de limiteur de vitesse est conçu pour une poulie de diamètre égal à 200 mm ou à 300 mm.For example, the speed limiter cable tensioner is designed for a pulley with a diameter of 200 mm or 300 mm.

Le mode de réalisation du tendeur de câble de limiteur de vitesse a été décrit à titre illustratif et non limitatif.The embodiment of the speed limiter cable tensioner has been described by way of illustration and not limitation.

Claims (6)

Tendeur de câble de limiteur de vitesse pour ascenseur, portant une poulie (7) dans laquelle passe un câble (8) du limiteur de vitesse, comportant une partie fixe (1), fixée au sol, en bas de la gaine d'ascenseur, et comportant un rail (4) vertical, et une partie mobile (2), portant ladite poulie (7), et des galets coulissant dans ledit rail (4) de la partie fixe (1), caractérisé en ce que le rail (4) vertical de la partie fixe a une section en C dans laquelle coulissent lesdits galets de la partie mobile (2).Speed limiter cable tensioner for an elevator, carrying a pulley (7) through which a speed limiter cable (8) has a fixed part (1) fixed to the ground at the bottom of the elevator shaft, and having a vertical rail (4), and a movable part (2), carrying said pulley (7), and rollers sliding in said rail (4) of the fixed part (1), characterized in that the rail (4) ) vertical of the fixed part has a C-section in which slide said rollers of the movable part (2). Tendeur de câble selon la revendication 1 caractérisé en ce que la partie mobile (2) est constituée d'une armature (5) dans laquelle sont empilées des plaques (6) constituant la masse assurant la tension du câble (8).Cable tensioner according to claim 1 characterized in that the movable part (2) consists of an armature (5) in which are stacked plates (6) constituting the mass ensuring the tension of the cable (8). Tendeur de câble selon la revendication 2 caractérisé en ce que les plaques (6) sont amovibles pour ajuster la masse du tendeur de câble.Cable tensioner according to claim 2 characterized in that the plates (6) are removable to adjust the mass of the cable tensioner. Tendeur de câble selon la revendication 1 caractérisé en ce que la partie mobile (2) porte une rampe (12) apte, en cas de détente ou de rupture du câble (8), à actionner un contact (13) de sécurité porté par la partie fixe (1).Cable tensioner according to claim 1 characterized in that the movable part (2) carries a ramp (12) adapted, in case of expansion or rupture of the cable (8), to actuate a safety contact (13) carried by the fixed part (1). Tendeur de câble selon la revendication 2 caractérisé en ce que l'armature (5) a une section horizontale en C.Cable tensioner according to claim 2 characterized in that the armature (5) has a horizontal section C. Tendeur de câble selon la revendication 1 caractérisé en ce que l'encombrement vertical de la partie mobile (2) est égal au diamètre nominal de la poulie (7) augmenté de 41 mm.Cable tensioner according to claim 1 characterized in that the vertical dimensions of the movable part (2) is equal to the nominal diameter of the pulley (7) increased by 41 mm.
EP12161367.3A 2011-04-19 2012-03-27 Lift overspeed governor rope tensioning device Active EP2514704B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1153371A FR2974359B1 (en) 2011-04-19 2011-04-19 SPEED LIMITER CABLE TENSIONER FOR ELEVATOR

Publications (2)

Publication Number Publication Date
EP2514704A1 true EP2514704A1 (en) 2012-10-24
EP2514704B1 EP2514704B1 (en) 2013-12-25

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EP12161367.3A Active EP2514704B1 (en) 2011-04-19 2012-03-27 Lift overspeed governor rope tensioning device

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FR (1) FR2974359B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0336182A (en) * 1989-06-30 1991-02-15 Mitsubishi Electric Corp Tension pulley device for elevator
JPH047285A (en) * 1990-04-26 1992-01-10 Mitsubishi Electric Corp Tightening pulley device of inclining elevator
JPH10316327A (en) 1997-05-22 1998-12-02 Mitsubishi Denki Bill Techno Service Kk Automatic position adjusting device for speed governor tension sheave arm
US20030183457A1 (en) * 2002-04-02 2003-10-02 Julien Maury Mechanism for indenting a safety gear for an elevator car
JP2010184787A (en) * 2009-02-12 2010-08-26 Mitsubishi Electric Corp Governor tensioner device for elevator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0336182A (en) * 1989-06-30 1991-02-15 Mitsubishi Electric Corp Tension pulley device for elevator
JPH047285A (en) * 1990-04-26 1992-01-10 Mitsubishi Electric Corp Tightening pulley device of inclining elevator
JPH10316327A (en) 1997-05-22 1998-12-02 Mitsubishi Denki Bill Techno Service Kk Automatic position adjusting device for speed governor tension sheave arm
US20030183457A1 (en) * 2002-04-02 2003-10-02 Julien Maury Mechanism for indenting a safety gear for an elevator car
JP2010184787A (en) * 2009-02-12 2010-08-26 Mitsubishi Electric Corp Governor tensioner device for elevator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
UNITEC PARTS COMPANY: "Governors", 10 February 2009 (2009-02-10), Web Archive, XP055012200, Retrieved from the Internet <URL:http://web.archive.org/web/20090210235028/http://www.unitecparts.com/portfolio/pdf/governors.pdf> [retrieved on 20111115] *

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Publication number Publication date
FR2974359B1 (en) 2014-03-14
FR2974359A1 (en) 2012-10-26
EP2514704B1 (en) 2013-12-25

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