EP0163555B1 - Swinging pulley support for a cable transport installation - Google Patents

Swinging pulley support for a cable transport installation Download PDF

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Publication number
EP0163555B1
EP0163555B1 EP85400656A EP85400656A EP0163555B1 EP 0163555 B1 EP0163555 B1 EP 0163555B1 EP 85400656 A EP85400656 A EP 85400656A EP 85400656 A EP85400656 A EP 85400656A EP 0163555 B1 EP0163555 B1 EP 0163555B1
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EP
European Patent Office
Prior art keywords
arm
spindle
rocker arm
sheave
support device
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.)
Expired
Application number
EP85400656A
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German (de)
French (fr)
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EP0163555A1 (en
Inventor
René Brian
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
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 Pomagalski SA filed Critical Pomagalski SA
Priority to AT85400656T priority Critical patent/ATE35525T1/en
Publication of EP0163555A1 publication Critical patent/EP0163555A1/en
Application granted granted Critical
Publication of EP0163555B1 publication Critical patent/EP0163555B1/en
Expired 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
    • B61B12/02—Suspension of the load; Guiding means, e.g. wheels; Attaching traction cables

Definitions

  • the invention relates to a support device according to the preamble of claim 1.
  • a device of the type mentioned makes it possible to support or compress the cable, by a series of rollers or pulleys of small diameter, without imposing on the cable an excessive curvature, the pendulums pivoting to distribute the load regularly on the rollers.
  • the rollers of each balance are generally mounted between two flanges forming a support yoke, itself articulated on a yoke connecting two successive rockers.
  • the rollers are trapped between the two flanges and their disassembly requires the extraction of the support pin. Repairs are often carried out on site, in particularly difficult conditions, at the top of a pylon and in rain or snow, which explains the incidents and faulty repairs that affect the proper functioning of the installation.
  • a deterioration of a bearing can cause seizure and loss of a roller.
  • the disassembly of a pendulum is also complicated.
  • Document EP-A-0 086 084 describes a device for supporting a cable having rollers mounted on cantilevered axes, which facilitates the removal or replacement of the rollers.
  • the cantilever axis is molded in the support arm and cannot be detached from the arm. The disassembly of the roller therefore requires an extraction of the ball bearing from the roller with risks of deterioration of this bearing.
  • the support arm is arranged on the external side of the support and the passage of the lines risks being obstructed by this projecting arm.
  • the roller is mounted on the axle in the factory or in the workshop with all the necessary care to avoid any deterioration of the bearings. Attaching the axle to the pendulum arm requires no special care and boils down to fitting the axle into a housing on the pendulum arm and tightening the fixing screws.
  • the cantilever mounting allows the installation or removal of the roller-axle assembly without dismantling the side flanges.
  • the balance arm is arranged, according to an improvement of the invention, on the internal side of the rollers, that is to say on the side opposite to the passage of the suspension lines of the loads coupled to the cable.
  • the balance arm is disposed between the rollers and the pylon, the cantilevered axes extending outward. This arrangement facilitates the passage of the fasteners, in particular on a pivoted pendulum which has lost one of its rollers.
  • the balance arm is a molded part, in the central hub carries a shoe, projecting from the outer side of the rollers; acting as a catcher on a derailed cable to the outside.
  • the catching shoe is eccentric with respect to the articulation axis of the balance arm, in order to impose on the latter a pivoting movement under the action of the impact of the cable falling on the shoe.
  • the cantilever mounting of the balance wheel rollers introduces an asymmetry, but the forces exerted on the rollers are low enough to allow such mounting. Symmetry is however preserved at the level of the connecting yokes between the pendulums, which are constituted by two rectilinear flanges or side plates, framing the pendulums on either side. These flanges, which are substantially at the same height as the straight balance arm, do not interfere with the disassembly of the rollers, if care is taken to pivot the arm relative to the flanges to release the roller.
  • the disassembly or assembly of a pendulum is facilitated by the possibility, according to the invention, of removing one of the flanges.
  • the two flanges are fixed by screws with two cheeks of a hub forming a spacer, advantageously of molded material.
  • a breakable conductive bar is introduced into a radial hole in the hub of the balance arm and its end projects into a groove made in the axis of articulation.
  • the length of this groove corresponds to the authorized pivoting stroke of the balance arm so that any excess in one direction or the other causes shearing or cutting of the projecting end.
  • the conductive bar is embedded in an insulating piece molded in the form of a plug, fixed for example by screwing in the radial hole of the hub.
  • the hole is open at the bottom to avoid penetration of water or humidity, and the sealing can be improved by seals, inserted between the axis and the hub and preventing any infiltration along the axis towards the breakable bar.
  • the conductor bar is connected to two connection wires ensuring the connection to the installation's safety line.
  • the whole wire, bar is coated in the molded material for a perfect electrical connection. It is clear that the bar can be replaced by another contact system, for example with a conductive liquid.
  • a train 10 of pendulums is articulated on a support pin 11 carried by a pylon.
  • Each balance 12 carries a pair of rollers 14, 16 or pulleys, mounted for rotation on axes 18, 20, fixed on a balance arm 22.
  • the axes 18, 20 are arranged at the ends of the arm 22, in the form of a beam rectilinear, articulated in the middle on an axis 24.
  • the axes 24 of two successive pendulums 12 are connected by a pair of flanges 26, 28 forming a yoke 30 framing the pendulums 12, the yoke 30 itself being articulated in its middle on an axis 32 which can be the axis 11 integral with the pylon, if the train 10 has only two pendulums 12 or can be carried by another yoke with two flanges 34, 36 if the number of pendulums 12 is greater.
  • Such pendulums 12 for supporting or compressing a cable are well known.
  • rollers 14, 16 of the balance 12 are mounted laterally in cantilever on the balance arm 22. Only the method of fixing the roller 14 is described below , that of the roller 16 being identical.
  • the axis 18 of the roller 14 has at one of its ends a collar 38, capable of being applied against the lateral face of the arm 22 of the same height and a centering stud 40 which fits into a hole 42 conjugated with the arm 22. Screws 44 rigidly secure the collar 38 to the arm 22.
  • a bearing 46 On the opposite end of the axis 18 is fitted a bearing 46, the outer cage of which carries the hub of the roller 14. The bearing 46 is held by a system washer 48 and screw 50.
  • the cantilever fixing of the axes 18, 20 on the arm 22 of the pendulum allows this disassembly and assembly operation, the roller 14 being fully released and the roller 16 can be released by simply pivoting the arm 22 to exit the roller 16 of the flanges 26, 28.
  • the pendulum arm 22 is a molded part having in its middle a hub 52 crossed by the hinge pin 24 ( Figure 4).
  • the hub 52 is framed by the flanges 26, 28 of the yoke 30 with interposition of shims 54, the axis 24 passing through orifices made in the flanges 26, 28.
  • the axis 24 ends on one side with a head 56 resting on the external face of the flange 28 and on the other side by a washer 58 fixed by screws 60 and resting on the external face of the flange 26. Screws 62 immobilize the axis 24 in rotation and seals sealing 64, housed in annular ribs formed at the two ends of the hub 52, frictionally engage the axis 24.
  • the hub 22 carries or is shaped as a shoe 66 projecting from the roller 14 to the left in FIG. 4.
  • the shoe 66 carries on its upper face a groove 68 for catching up a cable 69 derailing from the roller 14 and falling on the side left which corresponds to the outer side of the roller 14.
  • the outer side corresponds to the side for the passage of the lines of the loads coupled to the cable and is opposite the support pylon for the train of rockers. A derailment of the cable on the side of the pylon is prevented by a fixed guide 70, associated with the roller 14.
  • the catching shoe 66 extends above the flange 28 at a predetermined distance from the latter, to allow normal pivoting of the balance 12 and to come into abutment with the flange 28 during excessive pivoting. This avoids a vertical pivoting of the arm 22 of the balance, when a roller, for example of the roller 14, is lost.
  • the balance 12 in abutment on the flange 28 allows the passage of the fasteners and the cable remains supported of the roller 16.
  • the arrangement of the arm 22 on the internal side of the rollers 12, 14 facilitates this passage.
  • the flanges 26, 28 are secured in their middle by a spacer hub 72, mounted for rotation on the axis 32 carried by the flanges 34, 36.
  • the fixing of the axis 32 to the flanges 34, 36 is identical to that described above in relation to the axis 24 and the flanges 26, 28 ( Figure 5).
  • the hub 72 is a molded part, which has two lateral cheeks 74, 76 for fixing the flanges 26, 28 with screws 78.
  • the lower part of the hub 52 of the balance arm 22 is crossed by a radial hole 80, threaded and open downwards.
  • the axis 24 has, opposite the hole 80, a groove 82 in the form of a circular arc, the length of which corresponds to the normal deflection stroke of the arm 22, the groove 82 remaining opposite the hole 80 for all the normal deflection positions .
  • a detector 84 in the form of a plug, the nipple-shaped end 86 of which penetrates into the groove 82.
  • the detector 84 is a molded insulating part, which coats a loop conductor 88 consisting of a strip breakable penetrating into the stud 86.
  • the conductor 88 is connected to two wires 90 for connection to the installation security line.
  • the stud 86 is connected to the plug 84 by a thinned part 92 which can be cut off.
  • the end of the groove 82 abuts against the stud 86 and shears it by breaking the bar 88 and by interrupting the circuit of the safety line.
  • the detector 84 is unscrewed and replaced by a new one to allow the restarting of the installation.
  • the detector 84 is protected, in particular from moisture and any false contact is excluded.
  • the pivot Excessive balance arm 22, detected by the cutting of the stud 86, may result from the fall of the cable on the catching shoe 66 or the loss of a roller 14, 16 of the balance.
  • the detector 84 can be replaced by a simple screw (not shown), which enters the groove 82 and prevents excessive pivoting of the pendulums 12 during transport and assembly. Before starting up the installation, the screw is obviously replaced by the detector plug 84.
  • the balance train is applicable to the support or the maintenance of a carrier cable - tractor of a gondola or chairlift or any other overhead cable.
  • the number of balance elements can be arbitrary, as well as the type of roller used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Ropes Or Cables (AREA)
  • Electric Cable Installation (AREA)
  • Supports For Pipes And Cables (AREA)
  • Bridges Or Land Bridges (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

A rocker arm assembly (12), supporting the rope of an aerial tramway installation, comprises sheaves (14, 16), the spindles (18, 20) of which are fitted enabling their disassembly, cantilevered from an arm (22) fitted on the inward facing side of the sheaves. The arm (22), made of moulded material, has a rope catcher shoe (66), which protrudes on the outward facing side of the sheaves. A detector of excessive rocker arm (22) swing, due to the rope falling on the catcher shoe (66) or to a sheave being lost, is incorporated in the boss of the arm and protrudes into a shearing groove in the articulation spindle of the arm (22).

Description

L'invention est relative à un dispositif de support selon le préambule de la revendication 1.The invention relates to a support device according to the preamble of claim 1.

Un dispositif du genre mentionné permet de supporter ou de comprimer le câble, par une série de galets ou de poulies de faible diamètre, sans imposer au câble une courbure excessive, les balanciers pivotant pour répartir régulièrement la charge sur les galets. Les galets de chaque balancier sont généralement montés entre deux flasques formant une chape de support, elle-même articulée sur une chape reliant deux balanciers successifs. Les galets sont emprisonnés entre les deux flasques et leur démontage nécessite l'extraction de l'axe de support. Les réparations sont souvent exécutées sur le site, dans des conditions particulièrement difficiles, au sommet d'un pylône et sous la pluie ou la neige, ce qui explique les incidents et réparations défectueuses qui affectent le bon fonctionnement de l'installation. Une détérioration d'un roulement peut être à l'origine d'un grippage et d'une perte d'un galet. Le démontage d'un balancier est également compliqué.A device of the type mentioned makes it possible to support or compress the cable, by a series of rollers or pulleys of small diameter, without imposing on the cable an excessive curvature, the pendulums pivoting to distribute the load regularly on the rollers. The rollers of each balance are generally mounted between two flanges forming a support yoke, itself articulated on a yoke connecting two successive rockers. The rollers are trapped between the two flanges and their disassembly requires the extraction of the support pin. Repairs are often carried out on site, in particularly difficult conditions, at the top of a pylon and in rain or snow, which explains the incidents and faulty repairs that affect the proper functioning of the installation. A deterioration of a bearing can cause seizure and loss of a roller. The disassembly of a pendulum is also complicated.

Le document EP-A-0 086 084 décrit un dispositif de support d'un câble ayant des galets montés sur des axes en porte-à-faux, ce qui facilite l'enlèvement ou le remplacement des galets. L'axe en porte-à-faux est moulé dans le bras de support et ne peut être désolidarisé du bras. Le démontage du galet nécessite donc une extraction du roulement à billes du galet avec des risques de détérioration de ce roulement. Le bras de support est disposé du côté externe du support et le passage des suspentes risque d'être entravé par ce bras en saillie.Document EP-A-0 086 084 describes a device for supporting a cable having rollers mounted on cantilevered axes, which facilitates the removal or replacement of the rollers. The cantilever axis is molded in the support arm and cannot be detached from the arm. The disassembly of the roller therefore requires an extraction of the ball bearing from the roller with risks of deterioration of this bearing. The support arm is arranged on the external side of the support and the passage of the lines risks being obstructed by this projecting arm.

Le besoin s'est fait sentir de faciliter le démontage des galets et/ou d'un balancier complet tout en conservant une structure simple et robuste et ce but est atteint par le dispositif de support présentant les particularités mentionnées dans la partie caractéristique de la revendication 1.The need was felt to facilitate the disassembly of the rollers and / or a complete balance while retaining a simple and robust structure and this object is achieved by the support device having the features mentioned in the characteristic part of the claim. 1.

Le galet est monté sur l'axe en usine ou en atelier avec tout le soin nécessaire pour éviter toute détérioration des roulements. La fixation de l'axe sur le bras du balancier ne nécessite aucun soin particulier et se résume à un emboîtement de l'axe dans un logement du bras de balancier et au serrage de vis de fixation. Le montage en porte-à-faux permet la mise en place ou l'enlèvement de l'ensemble galet - axe sans démontage de fiasques latéraux.The roller is mounted on the axle in the factory or in the workshop with all the necessary care to avoid any deterioration of the bearings. Attaching the axle to the pendulum arm requires no special care and boils down to fitting the axle into a housing on the pendulum arm and tightening the fixing screws. The cantilever mounting allows the installation or removal of the roller-axle assembly without dismantling the side flanges.

Le bras de balancier est disposé, selon un perfectionnement de l'invention, du côté interne des galets, c'est-à-dire du côté opposé au passage des suspentes de support des charges accouplées au câble. Dans le cas d'un pylône conventionnel, le bras de balancier est disposé entre les galets et le pylône, les axes en porte-à-faux s'étendant vers l'extérieur. Cette disposition facilite le passage des attaches, notamment sur un balancier pivoté qui a perdu l'un de ses galets.The balance arm is arranged, according to an improvement of the invention, on the internal side of the rollers, that is to say on the side opposite to the passage of the suspension lines of the loads coupled to the cable. In the case of a conventional pylon, the balance arm is disposed between the rollers and the pylon, the cantilevered axes extending outward. This arrangement facilitates the passage of the fasteners, in particular on a pivoted pendulum which has lost one of its rollers.

Le bras de balancier est une pièce moulée, dans le moyeu central porte un sabot, en saillie du côté externe des galets; faisant fonction de rattrapeur d'un câble déraillé vers l'extérieur. Le sabot rattrapeur est excentré par rapport à l'axe d'articulation du bras de balancier, pour imposer à ce dernier un mouvement de pivotement sous l'action du choc du câble tombant sur le sabot. Le montage en porte-à-faux des galets des balanciers introduit une dissymétrie, mais les forces exercées sur les galets sont suffisamment faibles pour autoriser un tel montage. La symétrie est par contre conservée au niveau des chapes de liaison entre les balanciers, qui sont constituées par deux flasques rectilignes ou plaques latérales, encadrant de part et d'autre les balanciers. Ces flasques, qui sont sensiblement à la même hauteur que le bras rectiligne de balancier, ne gênent pas le démontage des galets, si l'on prend soin de pivoter le bras par rapport aux flasques pour dégager le galet.The balance arm is a molded part, in the central hub carries a shoe, projecting from the outer side of the rollers; acting as a catcher on a derailed cable to the outside. The catching shoe is eccentric with respect to the articulation axis of the balance arm, in order to impose on the latter a pivoting movement under the action of the impact of the cable falling on the shoe. The cantilever mounting of the balance wheel rollers introduces an asymmetry, but the forces exerted on the rollers are low enough to allow such mounting. Symmetry is however preserved at the level of the connecting yokes between the pendulums, which are constituted by two rectilinear flanges or side plates, framing the pendulums on either side. These flanges, which are substantially at the same height as the straight balance arm, do not interfere with the disassembly of the rollers, if care is taken to pivot the arm relative to the flanges to release the roller.

Le démontage ou le montage d'un balancier est facilité par la possibilité, selon l'invention, d'enlever l'un des flasques. A cet effet, les deux flasques sont fixés par des vis à deux joues d'un moyeu formant entretoise, avantageusement en matière moulée.The disassembly or assembly of a pendulum is facilitated by the possibility, according to the invention, of removing one of the flanges. To this end, the two flanges are fixed by screws with two cheeks of a hub forming a spacer, advantageously of molded material.

Selon un développement important de l'invention, un débattement excessif d'un balancier, dû soit à une perte d'un galet, soit à la chute du câble sur le sabot rattrapeur, est détecté par la rupture d'une barrette conductrice brisable. Cette barrette est introduite dans un trou radial du moyeu du bras de balancier et son extrémité fait saillie dans une rainure pratiquée dans l'axe d'articulation. La longueur de cette rainure correspond à la course de pivotement autorisé du bras de balancier de façon que tout dépassement dans un sens ou dans l'autre provoque le cisaillement ou le sectionnement de l'extrémité en saillie. La barrette conductrice est noyée dans une pièce isolante moulée en forme de bouchon, fixée par exemple par vissage dans le trou radial du moyeu. Le trou est ouvert vers le bas pour éviter une pénétration d'eau ou d'humidité, et l'étanchéité peut être améliorée par des joints, intercalés entre l'axe et le moyeu et empêchant toute infiltration le long de l'axe vers la barrette brisable. La barrette conductrice est raccordée à deux fils de connexion assurant la liaison à la ligne de sécurité de l'installation. L'ensemble fils, barrette est enrobé dans la matière moulée pour une parfaite liaison électrique. Il est clair que la barrette peut être remplacée par un autre système de contact, par exemple à liquide conducteur.According to an important development of the invention, excessive movement of a pendulum, due either to a loss of a roller, or to the fall of the cable on the catching shoe, is detected by the rupture of a breakable conductive bar. This bar is introduced into a radial hole in the hub of the balance arm and its end projects into a groove made in the axis of articulation. The length of this groove corresponds to the authorized pivoting stroke of the balance arm so that any excess in one direction or the other causes shearing or cutting of the projecting end. The conductive bar is embedded in an insulating piece molded in the form of a plug, fixed for example by screwing in the radial hole of the hub. The hole is open at the bottom to avoid penetration of water or humidity, and the sealing can be improved by seals, inserted between the axis and the hub and preventing any infiltration along the axis towards the breakable bar. The conductor bar is connected to two connection wires ensuring the connection to the installation's safety line. The whole wire, bar is coated in the molded material for a perfect electrical connection. It is clear that the bar can be replaced by another contact system, for example with a conductive liquid.

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode de mise en oeuvre de l'invention, - donné à titre d'exemple non limitatif et représenté aux dessins annexés dans lesquels :

  • - la figure 1 est une vue partielle en plan d'un dispositif de support selon l'invention ;
  • - la figure 2 est une vue en élévation à échelle réduite du dispositif selon la figure 1 ;
  • - les figures 3, 4 et 5 sont des coupes, respectivement suivant les lignes III-III, IV-IV et V-V de la figure 1 ;
  • - la figure 6 est une vue à échelle agrandie du détecteur selon la figure 4 ;
  • - la figure 7 est une vue de côté du moyeu entretoise selon la figure 5.
Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of the invention, - given by way of nonlimiting example and shown in the appended drawings in which:
  • - Figure 1 is a partial plan view of a support device according to the invention;
  • - Figure 2 is an elevational view on scale reduced device according to Figure 1;
  • - Figures 3, 4 and 5 are sections, respectively along the lines III-III, IV-IV and VV of Figure 1;
  • - Figure 6 is an enlarged view of the detector according to Figure 4;
  • FIG. 7 is a side view of the spacer hub according to FIG. 5.

Sur les figures un train 10 de balanciers est articulé sur un axe 11 de support porté par un pylône. Chaque balancier 12 porte une paire de galets 14, 16 ou de poulies, montés à rotation sur des axes 18, 20, fixés sur un bras de balancier 22. Les axes 18, 20 sont disposés aux extrémités du bras 22, en forme de poutre rectiligne, articulée en son milieu sur un axe 24. Les axes 24 de deux balanciers 12 successifs sont reliés par une paire de flasques 26, 28 formant une chape 30 encadrant les balanciers 12, la chape 30 étant elle-même articulée en son milieu sur un axe 32 qui peut être l'axe 11 solidaire du pylône, si le train 10 comporte seulement deux balanciers 12 ou peut être porté par une autre chape à deux flasques 34, 36 si le nombre de balanciers 12 est plus grand. De tels balanciers 12 de support ou de compression d'un câble sont bien connus.In the figures, a train 10 of pendulums is articulated on a support pin 11 carried by a pylon. Each balance 12 carries a pair of rollers 14, 16 or pulleys, mounted for rotation on axes 18, 20, fixed on a balance arm 22. The axes 18, 20 are arranged at the ends of the arm 22, in the form of a beam rectilinear, articulated in the middle on an axis 24. The axes 24 of two successive pendulums 12 are connected by a pair of flanges 26, 28 forming a yoke 30 framing the pendulums 12, the yoke 30 itself being articulated in its middle on an axis 32 which can be the axis 11 integral with the pylon, if the train 10 has only two pendulums 12 or can be carried by another yoke with two flanges 34, 36 if the number of pendulums 12 is greater. Such pendulums 12 for supporting or compressing a cable are well known.

En se référant plus particulièrement à la figure 3, on voit que les galets 14, 16 du balancier 12 sont montés latéralement en porte-à-faux sur le bras de balancier 22. Seul le mode de fixation du galet 14 est décrit ci-dessous, celui du galet 16 étant identique. L'axe 18 du galet 14 présente à l'une de ses extrémités un collet 38, susceptible d'être appliqué contre la face latérale du bras 22 de même hauteur et un téton de centrage 40 qui s'emboîte dans un trou 42 conjugué du bras 22. Des vis 44 solidarisent rigidement le collet 38 au bras 22. Sur l'extrémité opposée de l'axe 18 est emmanché un roulement 46, dont la cage extérieure porte le moyeu du galet 14. Le roulement 46 est maintenu par un système de rondelle 48 et de vis 50. En dévissant les vis 44 et en décalant légèrement l'axe 18, vers la gauche de la figure 3, pour déboîter le téton 40 du trou 42, il est possible d'enlever l'ensembie galet 14, axe 18 ou de monter un nouvel ensemble galet 14, axe 18 préparé en atelier. Cette opération de montage est simple et n'affecte nullement le roulement 46 qui constitue la pièce noble de cet ensemble.Referring more particularly to FIG. 3, it can be seen that the rollers 14, 16 of the balance 12 are mounted laterally in cantilever on the balance arm 22. Only the method of fixing the roller 14 is described below , that of the roller 16 being identical. The axis 18 of the roller 14 has at one of its ends a collar 38, capable of being applied against the lateral face of the arm 22 of the same height and a centering stud 40 which fits into a hole 42 conjugated with the arm 22. Screws 44 rigidly secure the collar 38 to the arm 22. On the opposite end of the axis 18 is fitted a bearing 46, the outer cage of which carries the hub of the roller 14. The bearing 46 is held by a system washer 48 and screw 50. By unscrewing the screws 44 and slightly shifting the axis 18, to the left of FIG. 3, to disengage the stud 40 from the hole 42, it is possible to remove the roller assembly 14 , axis 18 or to mount a new roller assembly 14, axis 18 prepared in the workshop. This assembly operation is simple and does not affect the bearing 46 which constitutes the noble part of this assembly.

La fixation en porte-à-faux des axes 18, 20 sur le bras 22 de balancier permet cette opération de démontage et de montage, le galet 14 étant entièrement dégagé et le galet 16 pouvant être dégagé par simple pivotement du bras 22 pour faire sortir le galet 16 des flasques 26, 28.The cantilever fixing of the axes 18, 20 on the arm 22 of the pendulum allows this disassembly and assembly operation, the roller 14 being fully released and the roller 16 can be released by simply pivoting the arm 22 to exit the roller 16 of the flanges 26, 28.

Le bras 22 de balancier est une pièce moulée présentant en son milieu un moyeu 52 traversé par l'axe 24 d'articulation (figure 4). Le moyeu 52 est encadré par les fiasques 26, 28 de la chape 30 avec interposition de cales 54, l'axe 24 traversant des orifices ménagés dans les flasques 26, 28. L'axe 24 se termine d'un côté par une tête 56 s'appuyant sur la face externe du flasque 28 et de l'autre côté par une rondelle 58 fixée par des vis 60 et s'appuyant sur la face externe du flasque 26. Des vis 62 immobilisent l'axe 24 en rotation et des joints d'étanchéité 64, logés dans des nervures annulaires ménagées aux deux extrémités du moyeu 52, engagent à friction l'axe 24.The pendulum arm 22 is a molded part having in its middle a hub 52 crossed by the hinge pin 24 (Figure 4). The hub 52 is framed by the flanges 26, 28 of the yoke 30 with interposition of shims 54, the axis 24 passing through orifices made in the flanges 26, 28. The axis 24 ends on one side with a head 56 resting on the external face of the flange 28 and on the other side by a washer 58 fixed by screws 60 and resting on the external face of the flange 26. Screws 62 immobilize the axis 24 in rotation and seals sealing 64, housed in annular ribs formed at the two ends of the hub 52, frictionally engage the axis 24.

Le moyeu 22 porte ou est conformé en un sabot 66 faisant saillie du galet 14 vers la gauche sur la figure 4. Le sabot 66 porte sur sa face supérieure une gorge 68 de rattrapage d'un câble 69 déraillant du galet 14 et tombant du côté gauche qui correspond au côté extérieur du galet 14. On sait que le côté extérieur correspond au côté de passage des suspentes des charges accouplées au câble et, est opposé au pylone de support du train 10 de balanciers. Un déraillement du câble du côté du pylône est empêché par un guide fixe 70, associé au galet 14. Le sabot rattrapeur 66 s'étend au-dessus du flasque 28 à une distance prédéterminée de ce dernier, pour autoriser un pivotement normal du balancier 12 et pour venir en butée du flasque 28 lors d'un pivotement excessif. On évite ainsi un pivotement à la verticale du bras 22 de balancier, lors d'une perte d'un galet, par exemple du galet 14. Le balancier 12 en butée sur le flasque 28 autorise le passage des attaches et le câble reste en appui du galet 16. La disposition du bras 22 du côté interne des galets 12, 14 facilite ce passage.The hub 22 carries or is shaped as a shoe 66 projecting from the roller 14 to the left in FIG. 4. The shoe 66 carries on its upper face a groove 68 for catching up a cable 69 derailing from the roller 14 and falling on the side left which corresponds to the outer side of the roller 14. It is known that the outer side corresponds to the side for the passage of the lines of the loads coupled to the cable and is opposite the support pylon for the train of rockers. A derailment of the cable on the side of the pylon is prevented by a fixed guide 70, associated with the roller 14. The catching shoe 66 extends above the flange 28 at a predetermined distance from the latter, to allow normal pivoting of the balance 12 and to come into abutment with the flange 28 during excessive pivoting. This avoids a vertical pivoting of the arm 22 of the balance, when a roller, for example of the roller 14, is lost. The balance 12 in abutment on the flange 28 allows the passage of the fasteners and the cable remains supported of the roller 16. The arrangement of the arm 22 on the internal side of the rollers 12, 14 facilitates this passage.

Les flasques 26, 28 sont solidarisés en leur milieu par un moyeu entretoise 72, monté à rotation sur l'axe 32 porté par les flasques 34, 36. La fixation de l'axe 32 aux flasques 34, 36 est ' identique à celle décrite ci-dessus en relation de l'axe 24 et des flasques 26, 28 (figure 5). Le moyeu 72 est une pièce moulée, qui présente deux joues latérales 74, 76 de fixation par des vis 78 des flasques 26, 28. En démontant l'un des flasques 26, 28, le bras 22 de balancier peut être enlevé, bien entendu après dévissage des vis 60 de fixation de son axe 24.The flanges 26, 28 are secured in their middle by a spacer hub 72, mounted for rotation on the axis 32 carried by the flanges 34, 36. The fixing of the axis 32 to the flanges 34, 36 is identical to that described above in relation to the axis 24 and the flanges 26, 28 (Figure 5). The hub 72 is a molded part, which has two lateral cheeks 74, 76 for fixing the flanges 26, 28 with screws 78. By dismantling one of the flanges 26, 28, the pendulum arm 22 can be removed, of course after unscrewing the screws 60 for fixing its axis 24.

La partie inférieure du moyeu 52 du bras 22 de balancier est traversée par un trou 80 radial, fileté et ouvert vers le bas. L'axe 24 présente en regard du trou 80 une rainure 82 en forme d'arc circulaire, dont la longueur correspond à la course de débattement normal du bras 22, la rainure 82 restant en regard du trou 80 pour toutes les positions de débattement normal. Dans le trou 80 est vissé un détecteur 84, en forme de bouchon, dont l'extrémité en forme de téton 86 pénètre dans la rainure 82. Le détecteur 84 est une pièce isolante moulée, qui enrobe un conducteur en boucle 88 constitué par une barrette brisable pénétrant dans le téton 86. Le conducteur 88 est relié à deux fils 90 de connexion à la ligne de sécurité de l'installation. Le téton 86 est raccordé au bouchon 84 par une partie amincie 92 sectionnable. Lors d'un pivotement excessif du moyeu 52 du bras 22 l'extrémité de la rainure 82 bute contre le téton 86 et le cisaille en cassant la barrette 88 et en interrompant le circuit de la ligne de sécurité. Après sectionnement le détecteur 84 est dévissé et remplacé par un nouveau pour permettre la remise en route de l'installation. Le détecteur 84 est à l'abri, notamment de l'humidité et tout faux contact est exclu. Le pivotement excessif du bras 22 de balancier, détecté par le sectionnement du téton 86, peut résulter de la chute du câble sur le sabot rattrapeur 66 ou de la perte d'un galet 14, 16 du balancier. Le détecteur 84 peut être remplacé par une simple vis (non représentée), qui pénètre dans la rainure 82 et évite des pivotements excessifs des balanciers 12 pendant le transport et le montage. Avant la mise en route de l'installation la vis est évidemment remplacée par le bouchon détecteur 84.The lower part of the hub 52 of the balance arm 22 is crossed by a radial hole 80, threaded and open downwards. The axis 24 has, opposite the hole 80, a groove 82 in the form of a circular arc, the length of which corresponds to the normal deflection stroke of the arm 22, the groove 82 remaining opposite the hole 80 for all the normal deflection positions . In the hole 80 is screwed a detector 84, in the form of a plug, the nipple-shaped end 86 of which penetrates into the groove 82. The detector 84 is a molded insulating part, which coats a loop conductor 88 consisting of a strip breakable penetrating into the stud 86. The conductor 88 is connected to two wires 90 for connection to the installation security line. The stud 86 is connected to the plug 84 by a thinned part 92 which can be cut off. During an excessive pivoting of the hub 52 of the arm 22 the end of the groove 82 abuts against the stud 86 and shears it by breaking the bar 88 and by interrupting the circuit of the safety line. After sectioning the detector 84 is unscrewed and replaced by a new one to allow the restarting of the installation. The detector 84 is protected, in particular from moisture and any false contact is excluded. The pivot Excessive balance arm 22, detected by the cutting of the stud 86, may result from the fall of the cable on the catching shoe 66 or the loss of a roller 14, 16 of the balance. The detector 84 can be replaced by a simple screw (not shown), which enters the groove 82 and prevents excessive pivoting of the pendulums 12 during transport and assembly. Before starting up the installation, the screw is obviously replaced by the detector plug 84.

Il est inutile de décrire le fonctionnement du train 10 de balanciers ou du détecteur 84, qui ressort de l'exposé précédent et il suffit de rappeler que l'agencement est simple et robuste et permet un démontage et remontage facile. Le train de balancier est applicable au support ou au maintien d'un câble porteur - tracteur d'une télécabine ou d'un télésiège ou de tout autre câble aérien. Le nombre d'éléments de balancier peut être quelconque, ainsi que le type de galet utilisé.It is useless to describe the operation of the train 10 of pendulums or of the detector 84, which emerges from the preceding description and it suffices to recall that the arrangement is simple and robust and allows easy disassembly and reassembly. The balance train is applicable to the support or the maintenance of a carrier cable - tractor of a gondola or chairlift or any other overhead cable. The number of balance elements can be arbitrary, as well as the type of roller used.

Claims (10)

1. Device for supporting or maintaining the rope of an aerial cable transport installation having a set (10) of rocker arm assemblies (12), staggered along the cable, each rocker arm (12) ' comprising a pair of adjacent sheaves (14, 16) and an arm (22) supporting at its ends a spindle (18, 20) for the rotation of a sheave (14, 16) of said pair, said arm (22) being articulated in the middle on a spindle (24) rigidly secured to the end of a cover, the other end of which supporting a spindle on which an adjacent rocker arm is articulated, each sheave (14, 16) rotation spindle (18, 20) being fitted in and rigidly cantilevered mounted from the rocker arm (22), characterized in that each sheave rotation spindle is fixed onto the rocker arm (22) in a simply disassembling manner to enable a sheave-spindle assembly to be replaced by simply disassembling the spindle (18, 20) cantilevered from said arm (22) and removing the sheave-spindle assembly.
2. Support device according to claim 1 of a cable, supporting load bearing hanger arms, said hanger arms passing on the sheave (14, 16) outward side, characterized in that the rocker arm (22) is disposed on the sheave (14,16) inward side so that the passage of the hanger arms is not hindered, particularly when a rocker arm (12) sheave (14, 16) is lost.
3. Support device according to 41aim 1 or 2, characterized in that said rocker arm (22) is made of moulded material, said side plates (26, 28) forming a cover comprising straight plates joined by a central boss (72) through which a support spindle (32) passes.
4. Support device according to claim 3, characterized in that said central boss (72) is made of moulded material having two lateral flanges (74, 76) for fixing said plates (26, 28).
5. Support device according to any one of the preceding claims, characterized in that a derailed cable catcher shoe (66) is fixed to the rocker assembly arm (22) in the middle area, and protrudes out from the outward facing side of the sheaves, said catcher shoe (66) being off centre with respect to said arm (22) pivoting spindle (24) in order to cause the arm to pivot under the action of the force exerted by thecable falling on the catcher shoe.
6. Support device according to claim 5, characterized in that said catcher shoe (66) is able to cooperate with the adjacent plate (28) to constitute a stop limiting pivoting of the rocker arm (22) when a rocker (12) assembly sheave (14, 16) is lost.
7. Support device according to any one of the preceding claims, characterized in that it comprises an excessive rocker (12) arm swing detector (84), made up of a frangible conducting strip (88) connected electrically in series in a safety line and which when broken causes shutdown of the installation by safety line interruption, said strip (88) being fitted at rocker arm (22) pivoting spindle (24) level.
8. Support device according to claim 7, characterized in that said frangible strip (88) is incorporated in a threaded plug (84) which may be screwed into a radial hole (80) provided in the central boss (52) of the rocker arm (22), said plug having at its end a shearable head (86) which, in the screwed-in plug position, engages in a groove (82) provided in a circular segment of the circumference of the spindle (24) passing through the central boss (52), said head (86) and the incorporated frangible strip (88) being sheared by the base of the groove (82) in the event of excessive rocker assembly arm (22) swing.
9. Support device according to claim 8; characterized in that said radial hole (80) is located under the boss (52), thightness rings (64) being incorporated between the boss (52) and the spin- die (24) on both sides of said radial hole (80) to prevent water entrance towards the frangible strip (88).
10. Support device according to claim 8 or 9, characterized in that it comprises a latching screw which may be screwed into said radial hole (80) for limiting the rocker arm (12) swing during the transport and the assembling.
EP85400656A 1984-04-13 1985-04-02 Swinging pulley support for a cable transport installation Expired EP0163555B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85400656T ATE35525T1 (en) 1984-04-13 1985-04-02 ROLLER ARM FOR A CABLEWAY TRANSPORT DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8406257A FR2562857B1 (en) 1984-04-13 1984-04-13 BALANCERS OF AN AIR CABLE TRANSPORTATION SYSTEM
FR8406257 1984-04-13

Publications (2)

Publication Number Publication Date
EP0163555A1 EP0163555A1 (en) 1985-12-04
EP0163555B1 true EP0163555B1 (en) 1988-07-06

Family

ID=9303342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400656A Expired EP0163555B1 (en) 1984-04-13 1985-04-02 Swinging pulley support for a cable transport installation

Country Status (7)

Country Link
US (1) US4640197A (en)
EP (1) EP0163555B1 (en)
JP (1) JPS60236866A (en)
AT (1) ATE35525T1 (en)
CA (1) CA1244286A (en)
DE (1) DE3563604D1 (en)
FR (1) FR2562857B1 (en)

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FR2591173B1 (en) * 1985-12-11 1988-10-21 Pomagalski Sa CABLE HOLDING DEVICE AND AIR CABLE TRANSPORTATION INSTALLATION COMPRISING SUCH A DEVICE
US5528219A (en) * 1994-04-28 1996-06-18 Konrad Doppelmayr & Sohn Ropeway safety monitoring system
FR2838697B1 (en) * 2002-04-23 2004-06-11 Gimar Montaz Mautino ROLLER TRAIN FOR GUIDING A MECHANICAL LIFT CABLE
ITBZ20030005A1 (en) 2003-01-30 2004-07-31 High Technology Invest Bv PRESSER DEVICE FOR CONDUCTING ROPE IN ROPE TRACTION TRANSPORT SYSTEMS.
ITBZ20050051A1 (en) * 2005-09-29 2007-03-30 High Technology Invest Bv ANTI-SCROLL-UP DEVICE FOR FUNPOSAL SYSTEM ROPES.
ITMI20070157U1 (en) 2007-04-20 2008-10-21 Rolic Invest Sarl CHAIRLIFT
ITMI20070835A1 (en) 2007-04-20 2008-10-21 Rolic Invest Sarl ROPE TRANSPORTATION SYSTEM AND METHOD OF OPERATION OF THE SAME
ITMI20071618A1 (en) 2007-08-03 2009-02-04 Rolic Invest Sarl ROPE TRANSPORTATION SYSTEM AND METHOD OF OPERATION OF THE SAME
ITMI20072071A1 (en) 2007-10-26 2009-04-27 Rolic Invest Sarl ROPE TRANSPORTATION SYSTEM AND METHOD OF OPERATION OF THE SAME
IT1395098B1 (en) 2009-07-09 2012-09-05 Rolic Invest Sarl TRANSPORT UNIT FOR ROPE TRANSPORT SYSTEMS
IT1395737B1 (en) 2009-08-04 2012-10-19 Rolic Invest Sarl RECALL OF A SEAT FOR SKILIFT
IT1401120B1 (en) 2010-07-14 2013-07-12 Rolic Invest Sarl EXCHANGE FOR ROPE TRANSPORTATION SYSTEM AND ROPE TRANSPORTATION SYSTEM INCLUDING SUCH EXCHANGE.
CH707865A8 (en) * 2013-04-05 2014-12-15 Artemio Granzotto Rope catching device for single-cable cars.

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US2947829A (en) * 1957-11-25 1960-08-02 Engelhard Ind Inc Safety fuse
US3822369A (en) * 1973-06-29 1974-07-02 Lift Eng & Mfg Inc Frangible, flexible printed circuit sensor fracturable by derailed cable
FR2387830A1 (en) * 1977-04-22 1978-11-17 Pomagalski Sa Monorail cable railway roller safety mechanism - has cutters activated by rockers to cut wire and break electric circuit
US4220095A (en) * 1977-04-22 1980-09-02 S.A. Pomagalski Overhead cable transport installation with a device for monitoring the components supporting the cable
FR2392858A1 (en) * 1977-05-12 1978-12-29 Mautino Victor Haulage and supporting rope roller set - has support rocker with eye at end to receive end rope which is tensioned by spring
FR2391450A1 (en) * 1977-05-18 1978-12-15 Stgm Position of traction cable checking system - uses probe signalling when cable derailment on balancing pulley assembly occurs
AT373832B (en) * 1981-04-21 1984-02-27 Nejez Josef Dipl Ing Dr Techn SAFETY DEVICE FOR MONITORING THE ROPE OF EARTHED CONDUCTOR ROPES ON ROLLER BATTERIES OF CABLE CARS AND TOW LIFTS
US4462314A (en) * 1982-02-05 1984-07-31 Kunczynski Jan K Rocker arm assembly for an aerial tramway

Also Published As

Publication number Publication date
ATE35525T1 (en) 1988-07-15
DE3563604D1 (en) 1988-08-11
EP0163555A1 (en) 1985-12-04
JPS60236866A (en) 1985-11-25
US4640197A (en) 1987-02-03
CA1244286A (en) 1988-11-08
FR2562857A1 (en) 1985-10-18
FR2562857B1 (en) 1987-01-16

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