EP0842837A1 - Transporting plant with aerial cable and releasable cable grippers including means for measuring the clamping force of the cable grippers. - Google Patents

Transporting plant with aerial cable and releasable cable grippers including means for measuring the clamping force of the cable grippers. Download PDF

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Publication number
EP0842837A1
EP0842837A1 EP97402637A EP97402637A EP0842837A1 EP 0842837 A1 EP0842837 A1 EP 0842837A1 EP 97402637 A EP97402637 A EP 97402637A EP 97402637 A EP97402637 A EP 97402637A EP 0842837 A1 EP0842837 A1 EP 0842837A1
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EP
European Patent Office
Prior art keywords
clamp
lever
cable
deformation
control
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
EP97402637A
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German (de)
French (fr)
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EP0842837B1 (en
Inventor
Patrick Satrin
Bernard Roux
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.)
Poma SA
Original Assignee
Pomagalski SA
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Filing date
Publication date
Application filed by Pomagalski SA filed Critical Pomagalski SA
Publication of EP0842837A1 publication Critical patent/EP0842837A1/en
Application granted granted Critical
Publication of EP0842837B1 publication Critical patent/EP0842837B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B12/00—Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
    • B61B12/12—Cable grippers; Haulage clips
    • B61B12/122—Cable grippers; Haulage clips for aerial ropeways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B12/00—Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
    • B61B12/06—Safety devices or measures against cable fracture

Definitions

  • Efficient cable clamping is one of the essential factors of safety and good operation of a cable transport installation aerial, in particular a gondola and chairlift to disengageable pliers, in which the pliers are open to each station entrance and closed at the exit.
  • the elastic clamping force is controlled by exerting a force on the control lever antagonist, just below normal force opening of the clamp. A shift of the command, under the action of this lower force, translated insufficient tightening of the clamp.
  • This first type of installation presents the downside of operating all or nothing and not ensure direct measurement of the clamping force exerted by the jaw on the cable.
  • a second type of installation known in the art previous includes a standard for simulating a cable, on which the clamp is closed to measure the clamping force by sensors incorporated into the standard.
  • This method allows continuous measurement, representative of the state of wear of the clamp, but the setting implementing such a control device is complicated. Security is not absolute because the force exerted by the following on the cable is not necessarily equal to that measured on the standard.
  • Another known type of installation includes clamps incorporating a control spring which acts on the clamping spring and causes displacement during a excessive reduction in the force of this clamping spring.
  • the set is incorporated in the clamp and the information must be transmitted to a landline.
  • Another known type of installation includes optical, inductive or magnetic proximity switches or even infrared or laser beam allowing to detect the position of one or more points of reference of the control lever of the disengageable pliers.
  • This level of deformation is compared to values thresholds, and the installation is eventually stopped when a crossing of one of said thresholds is detected.
  • the object of the invention is to produce a device simple, direct and reliable measurement of torque force or when a clamp is clamped.
  • a disengageable clamp 1 has a elongated body 2 which extends in position coupled to the cable 3 at least transversely to it.
  • the body 2 carries a joint 4 of a hanger 5 directed downwards and supporting itself a cabin or a seat.
  • Body 2 is extended on one side by a pair jaws 6, 7 together forming a clamping jaw 8 of the cable 3.
  • one of the jaw 6 is fixed and the other mobile, the fixed jaw 6 being located inside, the other jaw being turned towards the outside of the clamp, the jaws 6, 7 taking the cable 3 Above.
  • the jaw 6 is fixed and the other jaw 7 is articulated on a longitudinal axis 9 carried by the body 2.
  • the clamp 1 can have other structures than the one shown.
  • Several cable clamping jaws can be arranged on the same clamp body, on the same side of the body or on opposite sides of the body.
  • the axis 9 extends parallel above the cable 3.
  • the movable jaw 7 is rigidly secured to a extreme part 10 of a control lever 11.
  • the control lever 11 is rigid, in one piece, of a certain length. It spreads and can struggle during a pivoting on the axis 9 parallel to a plane P substantially perpendicular to the cable 3 corresponding to the plan of Figures 1 and 2.
  • a steering pin 13 is fixed general transverse rotation of a control roller 14 lever 11 and therefore movable jaw 7, capable of cooperate with a control ramp that is part of the installation, not shown.
  • the body 2 of the clamp 1 carries rollers 16 of bearing and a cross member 17 friction drive with which additional means can cooperate of the installation.
  • rollers 16 and the crosspiece 17 allow the displacement of the clamp 1, disengaged from the cable 3, on and the along transfer rails that are part of installation, not shown.
  • the control lever 11 is biased in permanently in cable clamping position 3 by at least a compression spring, or more generally a member elastic loading.
  • a pair springs 19, 19 ', inclined relative to each other, symmetrically arranged on either side of the plane P ensure, that after the passage of the roller 14 against the ramp the control lever 11 returns to the position cable tightening 3.
  • a end of springs 19, 19 'or adjoining supports is articulated to the gripper body 1 on the side of the jaws 7, 8.
  • control roller 14 has left the control rail and cable 3 is clamped between the jaws 7, 8 under the action of springs 19, 19 '.
  • Clamp 1 is guided by the transfer rails when passing the seats of a chairlift, a cabin from a gondola to boarding stations or landing.
  • the clamp 1 is provided with a rigid piece 22 fixed rigidly at its end 23, to the control lever 11, in zone 24.
  • this area 24 for example by bolting, is located at neighborhood of jaws 6, 7, a third of the total length of the lever 11 and below this lever 11 when the clamp 1 is in normal position.
  • this part 22 has a shape similar to that of a stirrup.
  • the other extreme part 25 of the shaped part caliper 22 is located above the control lever 11 and supports an adjustment device 26.
  • This adjustment device 26 first comprises place an O-ring 27.
  • This O-ring washer 27 is associated with a screw adjustment 28, this screw 28 being mounted on the extreme part 25 of the stirrup-shaped part 22, a nut 29 allowing to fix the position of the screw 28 and, consequently, of the O-ring 27 relative to the shaped part caliper 22.
  • Part 30 of the O-ring 27 penetrates in a groove 31 at the base 33 of a moving part 34.
  • This part 34 is articulated around an axis of rotation 35 arranged on a boss 36 of the control lever 11.
  • the boss 36 of the control lever 11 is located on the upper face of this lever, it supports the axis of rotation 35 of the moving part 34 but is moved away from the groove 31 into which part 30 of the washer penetrates toric 27.
  • FIGS. 2 three different positions of the moving part 34 are shown.
  • Position A corresponds to a normal position of the control lever 11 when the cable is tightened 3.
  • the nut 29 placed on the screw 28 allows a calibration of the clamp clamp measurement device disengageable 1.
  • This calibration takes into account in particular the elastic deformation of the control lever 11 in position tightening, elastic deformation resulting from the action of compression springs 19, 19 ', and others devices such as cylinders, associated with the springs of compression.
  • Position B of the moving part 34 corresponds to tolerable deformation of the control lever 11.
  • Position C of moving part 34 corresponds to unacceptable deformation, because it is too small, of the lever 11, this deformation does not correspond to sufficient cable clamping force 3.
  • the control of the position of the part 34 can be provided by various devices.
  • This control can be, among other things, visual.
  • This control is both positive and negative. In other words it can detect both a good that a bad clamping force of the cable 3 by the jaws 6, 7 of clamp 1.
  • a template 37 prohibits the passage of the disengageable clamp 1 when the position of the moving part 34 is less than the position tolerable limit B.
  • the part 22 must have sufficient rigidity to that the displacement and deformation of the control lever 11 result only or essentially in a rotation of the moving part 34 relative to the axis 35.
  • the invention is advantageously applied to a detachable chairlift or cable car clamp.
  • the invention is of course applicable other types of pliers, in particular with fixed coupling to the cable or closing under the effect of the load and at bi-cable installations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Flexible Shafts (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Mechanical Control Devices (AREA)

Abstract

The mechanism comprises a jaw clamp (6,7) which locks a cabin or seat onto the cable (3) when the jaws and closed, a control lever (11) to open and close the clamp, one end of the lever forming the moving jaw (7), and a spring (19) to operate the control lever. The control lever is actuated by a ramp extending along the clamp line of travel, while a detector ensures that the clamp is fastened tightly to the cable when in the closed position.

Description

L'invention est relative à une installation de transport à câble aérien porteur tracteur défilant en continu et en boucle entre deux stations, notamment une télécabine ou un télésiège, comprenant des pinces débrayables d'accouplement de charges au câble, chaque pince ayant :

  • une paire de mors, enserrant le câble lorsque la pince est en position de fermeture ;
  • un levier de commande pour l'ouverture et la fermeture de la pince, l'une des parties extrêmes de ce levier formant un mors mobile ;
  • un dispositif élastique pour actionner le levier de commande de la pince de la position d'ouverture à la position de fermeture de la pince.
The invention relates to a transport installation with an overhead cable carrying a tractor running continuously and in a loop between two stations, in particular a gondola or a chairlift, comprising disengageable clamps for coupling loads to the cable, each clamp having:
  • a pair of jaws, enclosing the cable when the clamp is in the closed position;
  • a control lever for opening and closing the clamp, one of the end parts of this lever forming a movable jaw;
  • an elastic device for actuating the gripper control lever from the open position to the closed position of the gripper.

De telles installations sont connues dans l'art antérieur. L'on peut se référer, par exemple, aux documents suivants : FR-2.724.357, FR-2.697.056, EP-582.528.Such installations are known in the art prior. We can refer, for example, to documents following: FR-2,724,357, FR-2,697,056, EP-582,528.

Une installation selon l'invention comporte par ailleurs :

  • une rampe de commande qui s'étend le long de la trajectoire de défilement de la pince et coopère avec ledit levier de commande au passage de la pince pour commander l'ouverture de la pince, le dispositif élastique étant alors maintenu en contrainte ; le relâchement de cette contrainte, lorsque la pince a dépassé la rampe de commande, provoquant le retour de la pince en position de serrage du câble ;
  • un moyen de mesure du serrage du câble par la pince.
An installation according to the invention also comprises:
  • a control ramp which extends along the path of travel of the clamp and cooperates with said control lever in the passage of the clamp to control the opening of the clamp, the elastic device then being kept under stress; the relaxation of this constraint, when the clamp has exceeded the control ramp, causing the clamp to return to the cable clamping position;
  • a means of measuring the cable tightness by the clamp.

Le serrage efficace du câble par les pinces est l'un des facteurs essentiels de sécurité et de bon fonctionnement d'une installation de transport à câble aérien, en particulier d'une télécabine et d'un télésiège à pince débrayable, dans lesquels les pinces sont ouvertes à chaque entrée de station et refermée à la sortie.Efficient cable clamping is one of the essential factors of safety and good operation of a cable transport installation aerial, in particular a gondola and chairlift to disengageable pliers, in which the pliers are open to each station entrance and closed at the exit.

Dans un premier type d'installation connue du genre mentionné ci-dessus, la force élastique de serrage est contrôlée en exerçant sur le levier de commande une force antagoniste, juste inférieure à la force normale d'ouverture de la pince. Un déplacement du levier de commande, sous l'action de cette force inférieure, traduit un serrage insuffisant de la pince.In a first known type of installation of its kind mentioned above, the elastic clamping force is controlled by exerting a force on the control lever antagonist, just below normal force opening of the clamp. A shift of the command, under the action of this lower force, translated insufficient tightening of the clamp.

Ce premier type d'installation présente l'inconvénient de fonctionner en tout ou rien et de ne pas assurer une mesure directe de la force de serrage exercée par le mors sur le câble.This first type of installation presents the downside of operating all or nothing and not ensure direct measurement of the clamping force exerted by the jaw on the cable.

Un deuxième type d'installation connue de l'art antérieur comporte un étalon de simulation d'un câble, sur lequel la pince est fermée pour mesurer la force de serrage par des capteurs incorporés à l'étalon.A second type of installation known in the art previous includes a standard for simulating a cable, on which the clamp is closed to measure the clamping force by sensors incorporated into the standard.

Cette méthode permet une mesure continue, représentative de l'état d'usure de la pince, mais la mise en oeuvre d'un tel dispositif de contrôle est compliquée. La sécurité n'est pas absolue car la force exercée par la suite sur le câble n'est pas forcément égale à celle mesurée sur l'étalon.This method allows continuous measurement, representative of the state of wear of the clamp, but the setting implementing such a control device is complicated. Security is not absolute because the force exerted by the following on the cable is not necessarily equal to that measured on the standard.

Un autre type d'installation connue comprend des pinces incorporant un ressort de contrôle qui agit sur le ressort de serrage et engendre un déplacement lors d'une baisse excessive de la force de ce ressort de serrage. L'ensemble est incorporé dans la pince et l'information doit être transmise à un poste fixe.Another known type of installation includes clamps incorporating a control spring which acts on the clamping spring and causes displacement during a excessive reduction in the force of this clamping spring. The set is incorporated in the clamp and the information must be transmitted to a landline.

Un autre type d'installation connue comprend des détecteurs de proximité optiques, inductifs ou magnétiques ou bien encore infra-rouges ou à rayons lasers permettant de détecter la position d'un ou plusieurs points de référence du levier de commande de la pince débrayable.Another known type of installation includes optical, inductive or magnetic proximity switches or even infrared or laser beam allowing to detect the position of one or more points of reference of the control lever of the disengageable pliers.

La position de ces points de référence du levier de commande de la pince débrayable permet de déduire le niveau de déformation de ce levier, et donc la valeur de la force, du couple ou du moment de serrage de la pince débrayable sur le câble.The position of these reference points of the lever control of the disengageable pliers allows to deduce the level deformation of this lever, and therefore the value of the force, the torque or the torque of the disengageable pliers on the cable.

Ce niveau de déformation est comparé à des valeurs seuils, et l'installation est éventuellement arrêtée lorsque l'on détecte un franchissement d'un desdits seuils.This level of deformation is compared to values thresholds, and the installation is eventually stopped when a crossing of one of said thresholds is detected.

Dans un tel dispositif :

  • le signal délivré par le détecteur est une indication valable de la déformation du levier de commande lorsque la position de la pince et la section du câble sont parfaitement constantes et que toutes les pinces sont identiques. Ces conditions étant rarement réalisées en pratique, il peut s'avérer nécessaire d'effectuer une deuxième mesure pour corriger la première et s'affranchir des parasites, notamment des variations de position de la pince ;
  • la présence de neige ou de graisse peut perturber la détection des points de référence sur le levier de commande.
In such a device:
  • the signal delivered by the detector is a valid indication of the deformation of the control lever when the position of the clamp and the section of the cable are perfectly constant and that all the clamps are identical. As these conditions are rarely achieved in practice, it may prove necessary to carry out a second measurement to correct the first and to avoid parasites, in particular variations in the position of the clamp;
  • the presence of snow or grease can disturb the detection of the reference points on the control lever.

L'invention a pour but de réaliser un dispositif simple, direct et fiable de la mesure de la force du couple ou du moment de serrage d'une pince.The object of the invention is to produce a device simple, direct and reliable measurement of torque force or when a clamp is clamped.

D'autres objets et avantages de l'invention apparaítront au cours de la description suivante d'un mode de réalisation donné à titre d'exemple non limitatif, description réalisée en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue montrant les moyens de contrôle du serrage du câble par la pince, selon un mode de réalisation de l'invention ;
  • la figure 2 est une vue de détail d'une partie de la pince représentée en figure 1, et
  • la figure 3 est une vue en perspective d'une partie de la pince représentée en figures 1 et 2.
Other objects and advantages of the invention will appear during the following description of an embodiment given by way of nonlimiting example, description made with reference to the accompanying drawings in which:
  • Figure 1 is a view showing the means of controlling the cable clamping by the clamp, according to one embodiment of the invention;
  • FIG. 2 is a detailed view of part of the clamp shown in FIG. 1, and
  • FIG. 3 is a perspective view of part of the clamp shown in FIGS. 1 and 2.

Sur les figures, une pince débrayable 1 présente un corps allongé 2 qui s'étend en position accouplée au câble 3 au moins transversalement à lui.In the figures, a disengageable clamp 1 has a elongated body 2 which extends in position coupled to the cable 3 at least transversely to it.

Le corps 2 porte une articulation 4 d'une suspente 5 dirigée vers le bas et supportant elle-même une cabine ou un siège. Le corps 2 est prolongé d'un côté par une paire de mors 6, 7 formant ensemble une mâchoire de serrage 8 du câble 3.The body 2 carries a joint 4 of a hanger 5 directed downwards and supporting itself a cabin or a seat. Body 2 is extended on one side by a pair jaws 6, 7 together forming a clamping jaw 8 of the cable 3.

Dans le mode de réalisation représenté, l'un des mors 6 est fixe et l'autre mobile, le mors fixe 6 étant situé à l'intérieur, l'autre mors étant tourné vers l'extérieur de la pince, les mors 6, 7 prenant le câble 3 par dessus. In the embodiment shown, one of the jaw 6 is fixed and the other mobile, the fixed jaw 6 being located inside, the other jaw being turned towards the outside of the clamp, the jaws 6, 7 taking the cable 3 Above.

Le mors 6 est fixe et l'autre mors 7 est articulé sur un axe 9 longitudinal porté par le corps 2.The jaw 6 is fixed and the other jaw 7 is articulated on a longitudinal axis 9 carried by the body 2.

La pince 1 peut présenter d'autres structures que celle représentée.The clamp 1 can have other structures than the one shown.

Plusieurs mâchoires de serrage de câble peuvent être disposées sur un même corps de pince, du même côté du corps ou sur des côtés opposés du corps.Several cable clamping jaws can be arranged on the same clamp body, on the same side of the body or on opposite sides of the body.

En position de serrage du câble 3 par les mors 6, 7, l'axe 9 s'étend parallèlement au-dessus du câble 3.In the cable clamping position 3 by the jaws 6, 7, the axis 9 extends parallel above the cable 3.

Le mors mobile 7 est rigidement solidaire d'une partie extrème 10 d'un levier de commande 11.The movable jaw 7 is rigidly secured to a extreme part 10 of a control lever 11.

Le levier de commande 11 est rigide, monobloc, d'une certaine longueur. Il s'étend et peut se débattre lors d'un pivotement sur l'axe 9 parallèlement à un plan P sensiblement perpendiculaire au câble 3 correspondant au plan des figures 1 et 2.The control lever 11 is rigid, in one piece, of a certain length. It spreads and can struggle during a pivoting on the axis 9 parallel to a plane P substantially perpendicular to the cable 3 corresponding to the plan of Figures 1 and 2.

A la partie extrême 12 du levier de commande 11, opposée au mors mobile 7, est fixé un axe 13 de direction générale transversale de rotation d'un galet de commande 14 du levier 11 et donc du mors mobile 7, susceptible de coopérer avec une rampe de commande faisant partie de l'installation, non représentée.At the end portion 12 of the control lever 11, opposite the movable jaw 7, a steering pin 13 is fixed general transverse rotation of a control roller 14 lever 11 and therefore movable jaw 7, capable of cooperate with a control ramp that is part of the installation, not shown.

Le corps 2 de la pince 1 porte des galets 16 de roulement et une traverse 17 d'entraínement par friction avec lesquels peuvent coopérer des moyens complémentaires de l'installation. The body 2 of the clamp 1 carries rollers 16 of bearing and a cross member 17 friction drive with which additional means can cooperate of the installation.

Les galets 16 et la traverse 17 permettent le déplacement de la pince 1, débrayée du câble 3, sur et le long de rails de transfert faisant partie de l'installation, non représentés.The rollers 16 and the crosspiece 17 allow the displacement of the clamp 1, disengaged from the cable 3, on and the along transfer rails that are part of installation, not shown.

Le levier de commande 11 est sollicité en permanence en position de serrage du câble 3 par au moins un ressort de compression, ou plus généralement un organe élastique de sollicitation.The control lever 11 is biased in permanently in cable clamping position 3 by at least a compression spring, or more generally a member elastic loading.

Dans le mode de réalisation représenté, une paire de ressorts 19, 19', inclinés l'un par rapport à l'autre, disposés symétriquement de part et d'autre du plan P assurent, qu'après le passage du galet 14 contre la rampe de commande, le levier de commande 11 revient en position de serrage du câble 3.In the embodiment shown, a pair springs 19, 19 ', inclined relative to each other, symmetrically arranged on either side of the plane P ensure, that after the passage of the roller 14 against the ramp the control lever 11 returns to the position cable tightening 3.

Lors du passage du galet 14 contre la rampe de commande, le levier 11 est positionné de manière que la pince 1 soit débrayée, les mors 6, 7 étant écartés.When the roller 14 passes against the ramp lever, the lever 11 is positioned so that the clamp 1 is disengaged, the jaws 6, 7 being separated.

Dans le mode de réalisation représenté, une extrémité des ressorts 19, 19' ou des supports attenants est articulée au corps de pince 1 du côté des mors 7, 8.In the embodiment shown, a end of springs 19, 19 'or adjoining supports is articulated to the gripper body 1 on the side of the jaws 7, 8.

Dans cette réalisation, l'autre extrémité 21, 21' des supports des ressorts 19, 19' ou des supports attenants est articulée sur le levier de commande 11 à proximité du galet de commande 14.In this embodiment, the other end 21, 21 ' spring supports 19, 19 'or adjoining supports is articulated on the control lever 11 near the control roller 14.

Sur les figures, le galet de commande 14 a quitté le rail de commande et le câble 3 est enserré entre les mors 7, 8 sous l'action des ressorts 19, 19'. In the figures, the control roller 14 has left the control rail and cable 3 is clamped between the jaws 7, 8 under the action of springs 19, 19 '.

La pince 1 est guidée par les rails de transfert lors du passage des sièges d'un télésiège, d'une cabine d'une télécabine aux stations d'embarquement ou de débarquement.Clamp 1 is guided by the transfer rails when passing the seats of a chairlift, a cabin from a gondola to boarding stations or landing.

Vont maintenant être décrits les moyens de repérage, de mesure et de contrôle de la force de serrage du câble 3 par la pince débrayable 1.The means of identification, measurement and control of the clamping force cable 3 by the disengageable clamp 1.

Par la suite, l'on entendra par déformation du levier 11, une déformation élastique de ce levier correspondant à une amplitude de déformation modérée à l'endroit de sa partie extrême 12 lors du serrage du câble 3, sous l'effet des ressorts 19, 19' et/ou d'autres dispositifs tels que vérins ou équivalents.Subsequently, by deformation of the lever 11, an elastic deformation of this lever corresponding to a moderate strain amplitude at the location of its end portion 12 when tightening the cable 3, under the effect of springs 19, 19 'and / or others devices such as cylinders or the like.

La pince 1 est pourvue d'une pièce rigide 22 fixée rigidement à sa partie extrême 23, au levier de commande 11, dans une zone 24.The clamp 1 is provided with a rigid piece 22 fixed rigidly at its end 23, to the control lever 11, in zone 24.

Dans le mode de réalisation représenté, cette zone de fixation 24, par exemple par boulonnage, est située au voisinage des mors 6, 7, au tiers de la longueur totale du levier 11 et en-dessous de ce levier 11 lorsque la pince 1 est en position normale.In the embodiment shown, this area 24, for example by bolting, is located at neighborhood of jaws 6, 7, a third of the total length of the lever 11 and below this lever 11 when the clamp 1 is in normal position.

Dans cette zone 24, l'amplitude de déformation du levier 11 en situation de fermeture de la pince 1 et de serrage du câble 3 est faible.In this zone 24, the amplitude of deformation of the lever 11 when clamp 1 is closed and cable tightening 3 is weak.

Dans le mode de réalisation représenté, cette pièce 22 a une forme semblable à celle d'un étrier. In the embodiment shown, this part 22 has a shape similar to that of a stirrup.

L'autre partie extrême 25 de la pièce en forme d'étrier 22 est située au-dessus du levier de commande 11 et supporte un dispositif de réglage 26.The other extreme part 25 of the shaped part caliper 22 is located above the control lever 11 and supports an adjustment device 26.

Ce dispositif de réglage 26 comporte en premier lieu une rondelle torique 27.This adjustment device 26 first comprises place an O-ring 27.

Cette rondelle torique 27 est associée à une vis de réglage 28, cette vis 28 étant montée sur la partie extrême 25 de la pièce en forme d'étrier 22, un écrou 29 permettant de fixer la position de la vis 28 et, en conséquence, de la rondelle torique 27 par rapport à la pièce en forme d'étrier 22.This O-ring washer 27 is associated with a screw adjustment 28, this screw 28 being mounted on the extreme part 25 of the stirrup-shaped part 22, a nut 29 allowing to fix the position of the screw 28 and, consequently, of the O-ring 27 relative to the shaped part caliper 22.

Une partie 30 de la rondelle torique 27 pénètre dans une gorge 31 à la base 33 d'une pièce mobile 34.Part 30 of the O-ring 27 penetrates in a groove 31 at the base 33 of a moving part 34.

Cette pièce 34 est articulée autour d'un axe de rotation 35 disposé sur un bossage 36 du levier de commande 11.This part 34 is articulated around an axis of rotation 35 arranged on a boss 36 of the control lever 11.

Le bossage 36 du levier de commande 11 est situé sur la face supérieure de ce levier, il supporte l'axe de rotation 35 de la pièce mobile 34 mais est écarté de la gorge 31 dans laquelle pénètre la partie 30 de la rondelle torique 27.The boss 36 of the control lever 11 is located on the upper face of this lever, it supports the axis of rotation 35 of the moving part 34 but is moved away from the groove 31 into which part 30 of the washer penetrates toric 27.

A sa partie extrême 25, la pièce 22 n'est donc pas rigidement fixée au levier de commande 11.At its extreme part 25, the part 22 is therefore not rigidly fixed to the control lever 11.

Lorsque le levier de commande 11 revient dans la position correspondant à la fermeture de la pince débrayable 1 et au serrage du câble 3, le rapprochement du levier 11 mobile par rapport à la partie extrême fixe 25 de la pièce 22 entraíne la rotation de la pièce mobile 34 par rapport à l'axe 35.When the control lever 11 returns to the position corresponding to the closing of the clamp disengageable 1 and when the cable 3 is tightened, the lever 11 movable relative to the fixed end portion 25 of the part 22 causes the rotation of the movable part 34 by in relation to axis 35.

Sur la figures 2, trois positions différentes de la pièce mobile 34 sont représentées.In FIGS. 2, three different positions of the moving part 34 are shown.

La position A correspond à une position normale du levier de commande 11 en situation de serrage du câble 3.Position A corresponds to a normal position of the control lever 11 when the cable is tightened 3.

L'écrou 29 disposé sur la vis 28 permet un étalonnage du dispositif de mesure du serrage de la pince débrayable 1.The nut 29 placed on the screw 28 allows a calibration of the clamp clamp measurement device disengageable 1.

Cet étalonnage tient compte notamment de la déformation élastique du levier de commande 11 en position de serrage, déformation élastique issue de l'action des ressorts de compression 19, 19', ainsi que d'autres dispositifs tels que vérins, associés aux ressorts de compression.This calibration takes into account in particular the elastic deformation of the control lever 11 in position tightening, elastic deformation resulting from the action of compression springs 19, 19 ', and others devices such as cylinders, associated with the springs of compression.

La position B de la pièce mobile 34 correspond à une déformation tolérable du levier de commande 11.Position B of the moving part 34 corresponds to tolerable deformation of the control lever 11.

La position C de la pièce mobile 34 correspond à une déformation non admissible, car trop faible, du levier de commande 11, cette déformation ne correspondant pas à une force suffisante de serrage du câble 3.Position C of moving part 34 corresponds to unacceptable deformation, because it is too small, of the lever 11, this deformation does not correspond to sufficient cable clamping force 3.

Le contrôle de la position de la pièce 34 peut être assuré par divers dispositifs.The control of the position of the part 34 can be provided by various devices.

Ce contrôle peut être, entre autres, visuel. This control can be, among other things, visual.

Ce contrôle est à la fois positif et négatif. En d'autres termes, il permet de détecter tant une bonne qu'une mauvaise force de serrage du câble 3 par les mors 6, 7 de la pince 1.This control is both positive and negative. In other words it can detect both a good that a bad clamping force of the cable 3 by the jaws 6, 7 of clamp 1.

Dans le mode de réalisation représenté, un gabarit 37 interdit le passage de la pince débrayable 1 lorsque la position de la pièce mobile 34 est inférieure à la position limite tolérable B.In the embodiment shown, a template 37 prohibits the passage of the disengageable clamp 1 when the position of the moving part 34 is less than the position tolerable limit B.

La pièce 22 doit avoir une rigidité suffisante pour que le déplacement et la déformation du levier de commande 11 se traduisent uniquement ou essentiellement par une rotation de la pièce mobile 34 par rapport à l'axe 35.The part 22 must have sufficient rigidity to that the displacement and deformation of the control lever 11 result only or essentially in a rotation of the moving part 34 relative to the axis 35.

L'invention est avantageusement appliquée à une pince de télésiège ou de télécabine débrayable.The invention is advantageously applied to a detachable chairlift or cable car clamp.

Toutefois, l'invention est bien entendu applicable à d'autres types de pince, notamment à accouplement fixe au câble ou à fermeture sous l'effet de la charge et à des installations bi-câbles.However, the invention is of course applicable other types of pliers, in particular with fixed coupling to the cable or closing under the effect of the load and at bi-cable installations.

Claims (6)

Installation de transport à câble aérien porteur tracteur (3) défilant en continu, notamment une télécabine ou un télésiège, comprenant des pinces débrayables d'accouplement de charges au câble (3), chaque pince (1) comprenant : une pince de mors (6, 7), enserrant le câble (3) lorsque la pince (1) est en position de fermeture ; un levier de commande (11) pour l'ouverture et la fermeture de la pince (1), l'une des extrémités (10) de ce levier (11) étant conformée en mors mobile (7) ; un dispositif élastique (19, 19') pour actionner le levier de commande (11) de la pince (1) de la position d'ouverture à la position de fermeture de la pince (1) ;    l'installation comportant par ailleurs : une rampe de commande qui s'étend le long de la trajectoire de défilement de la pince (1) et coopère avec le levier (11) au passage de la pince (1) pour commander l'ouverture de la pince (1), le dispositif élastique (19, 19') étant alors maintenu en contrainte, le relâchement de cette contrainte, lorsque la pince (1) a dépassé la rampe provoquant le retour de la pince (1) en position de fermeture ; des moyens de mesure du serrage du câble (3) par la pince (1),    caractérisée en ce que les moyens de mesure comprenant une pièce mécanique (34) mise en mouvement lors du retour du levier (11) en position de fermeture de la pince (1), la position atteinte par ladite pièce (34) lorsque le levier (11) a atteint ladite position de fermeture étant associée au degré de déformation dudit levier (11). Transport installation using an overhead cable carrying a tractor (3) traveling continuously, in particular a cable car or chairlift, comprising disengageable clamps for coupling loads to the cable (3), each clamp (1) comprising: a jaw clamp (6, 7), enclosing the cable (3) when the clamp (1) is in the closed position; a control lever (11) for opening and closing the clamp (1), one of the ends (10) of this lever (11) being shaped as a movable jaw (7); an elastic device (19, 19 ') for actuating the control lever (11) of the clamp (1) from the open position to the closed position of the clamp (1); the installation also comprising: a control ramp which extends along the path of travel of the clamp (1) and cooperates with the lever (11) in the passage of the clamp (1) to control the opening of the clamp (1), the elastic device (19, 19 ') then being held under stress, the relaxation of this stress, when the clamp (1) has exceeded the ramp causing the clamp (1) to return to the closed position; means for measuring the cable tightness (3) by the clamp (1), characterized in that the measuring means comprising a mechanical part (34) set in motion when the lever (11) returns to the closed position of the clamp (1), the position reached by said part (34) when the lever ( 11) has reached said closed position being associated with the degree of deformation of said lever (11). Installation selon la revendication 1, caractérisée en ce que la pièce mobile (34) est mobile en rotation à son extrémité (33) autour d'un axe (35) porté par le levier (11).Installation according to claim 1, characterized in that the moving part (34) is movable in rotation at its end (33) about an axis (35) carried by the lever (11). Installation selon l'une quelconque des revendications 1 ou 2, caractérisée en ce qu'elle comprend, en outre, des moyens (37) permettant d'interdire le passage de la pince (1) lorsque la position de la pièce (34) est inférieure à une position limite correspondant à des valeurs seuils de déformation du levier (11) et de force de serrage du câble (3), ces valeurs seuils étant pré-réglées par des moyens d'étalonnage (28, 29).Installation according to any of claims 1 or 2, characterized in that it comprises, in addition, means (37) for prohibiting the passage of the clamp (1) when the position of the part (34) is less than a limit position corresponding to threshold values of lever deformation (11) and force cable tightening (3), these threshold values being preset by calibration means (28, 29). Installation selon la revendication 3, caractérisée en ce que les moyens d'étalonnage (28, 29) sont portés à une partie extrême libre (25) d'une pièce (22), solidaire du levier (11) à son autre partie extrême (23).Installation according to claim 3, characterized in that the calibration means (28, 29) are brought to a free end part (25) of a part (22), integral with the lever (11) at its other end part (23). Installation selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les moyens de mesure du serrage sont disposés dans une zone de forte amplitude de déformation du levier (11), proche de sa partie extrême (12) opposée au mors mobile (7).Installation according to any of Claims 1 to 4, characterized in that the means for tightness measurement are arranged in a strong area amplitude of deformation of the lever (11), close to its end part (12) opposite the movable jaw (7). Installation selon l'une quelconque des revendications 4 ou 5, caractérisée en ce que la pièce (22) est solidarisée à sa partie extrême (23) au levier (11) dans une zone (24) de faible amplitude de déformation du levier (11), proche du mors mobile (7).Installation according to any of claims 4 or 5, characterized in that the part (22) is secured at its end (23) to the lever (11) in an area (24) of small amplitude of deformation of the lever (11), close to the movable jaw (7).
EP97402637A 1996-11-15 1997-11-05 Transporting plant with aerial cable and releasable cable grippers including means for measuring the clamping force of the cable grippers. Expired - Lifetime EP0842837B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9613987A FR2755930B1 (en) 1996-11-15 1996-11-15 AIR CABLE TRANSPORTATION SYSTEM, WITH RELEASABLE CLAMPS, INCLUDING MEANS FOR MEASURING THE TIGHTENING OF THE CABLE BY THE CLAMPS
FR9613987 1996-11-15

Publications (2)

Publication Number Publication Date
EP0842837A1 true EP0842837A1 (en) 1998-05-20
EP0842837B1 EP0842837B1 (en) 2001-02-07

Family

ID=9497682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402637A Expired - Lifetime EP0842837B1 (en) 1996-11-15 1997-11-05 Transporting plant with aerial cable and releasable cable grippers including means for measuring the clamping force of the cable grippers.

Country Status (5)

Country Link
EP (1) EP0842837B1 (en)
JP (1) JPH10181584A (en)
AT (1) ATE199077T1 (en)
CA (1) CA2219451A1 (en)
FR (1) FR2755930B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0976637A1 (en) * 1998-07-31 2000-02-02 Agamatic s.r.l. Safety device for the forced execution and the control of the gripping at the exit from a station for a continuous motion single cable cableway with temporary disconnection of the cars
FR3001689A1 (en) * 2013-02-01 2014-08-08 Altim BALANCING BONDING DEVICE-CABLE MECHANICAL REMOTE POTENCY

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103661410B (en) * 2013-11-20 2016-08-17 山东科兴机电设备有限公司 A kind of cableway disconnected rope trap setting

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH259291A (en) * 1947-02-21 1949-01-15 Eisen Und Stahlwerke Oehler & Safety device on suspension railway systems.
CH664536A5 (en) * 1984-07-13 1988-03-15 Staedeli Lift Ag Spring force monitor for chair lift and cable-way rope clamps - has linkage attached to sliding dog between two spring sets on core with compression ring
AT388346B (en) * 1987-11-25 1989-06-12 Wopfner Kg Felix DETACHABLE CLAMP FOR CLAMPING TRANSPORT MEANS TO A MOVING ROPE
EP0582528A1 (en) 1992-08-05 1994-02-09 Pomagalski S.A. Checking the clamping pressure of a detachable grip of a ropeway
FR2697056A1 (en) 1992-10-19 1994-04-22 Pomagalski Sa Device for controlling grip of pincers - comprises spring on lever of pincer with one end of spring anchored to semi-fixed part carried by abutment on body, control having extrinsic device
FR2724357A1 (en) 1994-09-08 1996-03-15 Pomagalski Sa DETACHABLE CLAMP OF A TELESCOPE OR CABLE CAR

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH259291A (en) * 1947-02-21 1949-01-15 Eisen Und Stahlwerke Oehler & Safety device on suspension railway systems.
CH664536A5 (en) * 1984-07-13 1988-03-15 Staedeli Lift Ag Spring force monitor for chair lift and cable-way rope clamps - has linkage attached to sliding dog between two spring sets on core with compression ring
AT388346B (en) * 1987-11-25 1989-06-12 Wopfner Kg Felix DETACHABLE CLAMP FOR CLAMPING TRANSPORT MEANS TO A MOVING ROPE
EP0582528A1 (en) 1992-08-05 1994-02-09 Pomagalski S.A. Checking the clamping pressure of a detachable grip of a ropeway
FR2697056A1 (en) 1992-10-19 1994-04-22 Pomagalski Sa Device for controlling grip of pincers - comprises spring on lever of pincer with one end of spring anchored to semi-fixed part carried by abutment on body, control having extrinsic device
FR2724357A1 (en) 1994-09-08 1996-03-15 Pomagalski Sa DETACHABLE CLAMP OF A TELESCOPE OR CABLE CAR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0976637A1 (en) * 1998-07-31 2000-02-02 Agamatic s.r.l. Safety device for the forced execution and the control of the gripping at the exit from a station for a continuous motion single cable cableway with temporary disconnection of the cars
FR3001689A1 (en) * 2013-02-01 2014-08-08 Altim BALANCING BONDING DEVICE-CABLE MECHANICAL REMOTE POTENCY

Also Published As

Publication number Publication date
CA2219451A1 (en) 1998-05-15
FR2755930A1 (en) 1998-05-22
EP0842837B1 (en) 2001-02-07
FR2755930B1 (en) 1998-12-31
ATE199077T1 (en) 2001-02-15
JPH10181584A (en) 1998-07-07

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