EP0024975B1 - Saddle cable grippers with guiding forks and antislipping device for monocable aerial-transportation cars - Google Patents

Saddle cable grippers with guiding forks and antislipping device for monocable aerial-transportation cars Download PDF

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Publication number
EP0024975B1
EP0024975B1 EP80401182A EP80401182A EP0024975B1 EP 0024975 B1 EP0024975 B1 EP 0024975B1 EP 80401182 A EP80401182 A EP 80401182A EP 80401182 A EP80401182 A EP 80401182A EP 0024975 B1 EP0024975 B1 EP 0024975B1
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EP
European Patent Office
Prior art keywords
cable
saddle
installation according
fork
load
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
EP80401182A
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German (de)
French (fr)
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EP0024975A1 (en
Inventor
Henri Gaudet
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.)
Compagnie Miniere de lOgooue Comilog
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Compagnie Miniere de lOgooue Comilog
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Priority to AT80401182T priority Critical patent/ATE4039T1/en
Publication of EP0024975A1 publication Critical patent/EP0024975A1/en
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Publication of EP0024975B1 publication Critical patent/EP0024975B1/en
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    • 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

Definitions

  • the invention relates to a continuous cable overhead cable transport installation comprising load support carriages, capable of being coupled to the tractor-carrier cable by harnesses placed on the cable and having reverse V wedging surfaces. which overlap and grip the cable under the effect of the weight of the load transported, each harness being pivotally mounted on the carriage to allow movement in the vertical plane containing the cable.
  • the object of the present invention is to remedy this drawback.
  • the installation according to the present invention is characterized in that the wedging surfaces of each harness extend by two teeth forming a guide fork, means being provided for urging the harness in pivoting towards a position in which the teeth frame the cable when, during an untimely lifting of the harness, the wedging surfaces are released from the cable.
  • the fork In normal operation, the fork is inactive, its teeth extending parallel to the direction of the cable in line with the wedging surfaces of the harness on the cable.
  • the cable emerges from the wedging surfaces in an inverted V and allows the pivoting of the harness bringing the fork into the active, lowered position, straddled on the cable.
  • This fork guides the harness which automatically rests on the cable in the coupling position at the end of the oscillation.
  • the length of the fork tines must be sufficient to guide the harness during the maximum lifting amplitudes likely to occur during operation.
  • the fork extends at the rear of the harness to avoid any bending when unloading on the cable, in particular when coupling the load.
  • the assembly is particularly simple and robust and does not require any special locking or control mechanism.
  • the grip of the harness by jamming on the cable may be insufficient, knowing the long slope sections and it has already been proposed to increase this grip by the use of jamming surfaces carrying a protruding lug which is embedded in the circumference of the cable (DE-C-78.956).
  • Fixed lugs lose their effectiveness in whole or in part on worn cables or due to their own wear, or even when the harness is lifted.
  • the locking lug is mounted mobile on the harness and urged in contact with the cable.
  • the edge of the lug in contact with the cable advantageously follows the periphery of the cable and is shaped to be inserted between two strands to increase the locking effect.
  • the lug When the harness has a guide fork, the lug is disposed at the front of the harness on the opposite side of the fork with respect to the articulation axis, so as to be raised in the pivoted position of the harness.
  • the lug is advantageously secured to a vertical slide urged by gravity or by a spring in the projecting position in contact with the cable.
  • the harness can include several movable pins, integral or independent, these pins can be used in combination or not with the guide fork.
  • the load support trolley generally has two coupling harnesses and it is advantageous to determine the spacing between the two harnesses, so that when the lug of one of the harnesses is inserted between two strands of the cable, the lug of the other harness is in abutment on a strand, so as to be assured of the engagement of at least one lug between strands for any relative position of the carriage.
  • the rollers or pulleys for supporting the cable have laterally guide grooves of the groove cable allowing increased lateral pivoting of the harnesses without risk of contact of the edges of the wedging surfaces with the bottom of the roller groove.
  • This arrangement is particularly advantageous for harnesses with a small angle of the wedging surfaces whose penetration depth on the cable varies greatly with the thinning of the cable. This possibility of having smaller angles makes it possible to increase the adhesion of the two surfaces in contact with the cable.
  • a tractor-carrying cable 10 of an overhead cable conveyor runs continuously for the transport of loads along the line.
  • the loads or skips are coupled to the departure station with cable 10 and automatically uncoupled from the arrival station.
  • Each bucket is fixed by a hanger of which only the axis 12 is shown, to a carriage 14 via 'an axis of articulation 16.
  • the carriage 14 comprises two harnesses 18, 20 for coupling to the cable 10, which are pivotally mounted on axes 22, 24 symmetrically of the axis 16 and will be described in detail below.
  • the carriage 14 further comprises rollers (not shown) capable of rolling on transfer rails in the stations.
  • the harnesses 18, 20 are identical and only one 18 is described in detail below, more particularly with reference to FIGS. 3 to 5.
  • the body of the harness 18, articulated on the axis 22, has at its base two surfaces wedging 26, 28, or fixed jaws arranged in inverted V to come cover the cable 10 in the coupled position of the harness 18 and tighten the cable 10 under the effect of the weight of the load transported.
  • the inclination of the wedging surfaces 26, 28 makes it possible to compensate for the wear or the thinning of the cable 10 and it is determined to obtain a maximum wedging force for a given load.
  • the wedging surfaces 26, 28 extend behind the fifth wheel 18 by two teeth 30, 32 forming a fork capable of framing the cable 10. In the coupling position shown in the figures, the teeth 30, 32 s 'extend in the longitudinal direction of the cable 10, without increasing the clearance gauge on the support rollers.
  • a lug 34 On the front part 36 of the harness 18, 20 is slidably mounted a lug 34, inside a substantially vertical housing in the coupling position of the harness (fig. 2).
  • the upper part of the lug 34 carries a head 38 limiting the sinking of the lug 34 and subjected to the action of a leaf spring 40, which pushes the lug 34 to the bottom of its housing.
  • the lower part of the lug 34 is shaped as an edge 42 which opens into the bottom of the groove confined by the wedging surfaces 26, 28.
  • the edge 42 cooperates with the upper face of the cable 10 engaged between the surfaces 26, 28 and the edge 42 is inclined relative to the axis of the cable 10 by an angle corresponding to the slope of the strands of the cable 10 to allow its insertion between two successive strands.
  • the edge 44 of the edge 42 is concave for follow the edge of the cable.
  • the stroke of the lug 34 is sufficient to maintain in any case the contact with the cable clamped between the surfaces 26, 28.
  • the presence of the lug 38 increases the grip of the harness and allows the crossing of sections with strong slope.
  • the articulation of the harnesses 18, 20 on the carriage 14 avoids any engagement of the lug 34 prior to coupling by wedging between the surfaces 26, 28 and therefore any wear by friction on the cable. 10.
  • the spacing of the axes 22, 24 of articulation of the harnesses 18, 20 is determined as a function of the pitch of the helix of the strands of the cable 10, so as to always have at least one of the lugs 34 engaged between strands.
  • the lug 34 can easily be replaced in the event of wear and thanks to its mobility it ensures locking function even on a thinned cable.
  • the cable 10, shown in FIG. 5, is thinned and at the wear limit and the settette 18 rests practically by its bottom on the cable 10.
  • the roller 46 has a central groove 48 for guiding the cable 10 framed on the side and another of grooves 50, 52, the spacing of which corresponds to the spacing of the lower edges 54, 56 of the fixed clamping jaws with wedging surface 26, 28.
  • the grooves 50 52 are delimited laterally by the flanges 58, 60 of the usual way.
  • the assembly is arranged so that only the central position of the cable 10, shown in FIG.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Electric Cable Installation (AREA)
  • Braking Arrangements (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Ropes Or Cables (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Relays Between Conveyors (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Paper (AREA)

Abstract

Single rope aerial cableway having a load-carrying head carriage with two clips of inverted-V form for gripping the rope by the action of the weight of the load. Each clip is provided with a rearwards extending fork and is rotatably mounted to move the fork in a downward direction upon upward movements of the clip relatively to the rope so that the rope is engaged and guided by the fork. A finger engaging the rope is slidably mounted on the front side of the clip and the support sheave is provided with two side grooves.

Description

L'invention est relative à une installation de transport à câble aérien à défilement continu comprenant des chariots de support des charges, susceptibles d'être accouplés au câble tracteur-porteur par des sellettes posées sur le câble et présentant des surfaces de coincement en V inversé qui chevauchent et enserrent le câble sous l'effet du poids de la charge transportée, chaque sellette étant montée à pivotement sur le chariot pour autoriser un débattement dans le plan vertical contenant le câble.The invention relates to a continuous cable overhead cable transport installation comprising load support carriages, capable of being coupled to the tractor-carrier cable by harnesses placed on the cable and having reverse V wedging surfaces. which overlap and grip the cable under the effect of the weight of the load transported, each harness being pivotally mounted on the carriage to allow movement in the vertical plane containing the cable.

Les installations connues du genre mentionné, essentiellement utilisées pour le transport de matériaux, sont particulièrement simples et fiables, l'accouplement et le désaccouplement des charges s'effectuant par simple abaissement ou soulèvement (FR-A-1.455.899). Elles présentent néanmoins le risque d'un décrochage intempestif, lors d'un débattement vertical du câble suffisant pour dégager la sellette du câble. L'obligation d'un passage sans contact des sellettes sur les galets de support du câble limite leur profondeur d'engagement sur le câble et le risque de décrochage des charges par oscillation verticale du câble est l'un des facteurs de limitation de la vitesse de ce genre de transporteur.Known installations of the kind mentioned, mainly used for the transport of materials, are particularly simple and reliable, the coupling and uncoupling of the loads being effected by simple lowering or lifting (FR-A-1,455,899). They nevertheless present the risk of an untimely stall, during a vertical clearance of the cable sufficient to release the harness from the cable. The requirement for a contactless passage of the harnesses on the cable support rollers limits their depth of engagement on the cable and the risk of dropping loads by vertical oscillation of the cable is one of the speed limiting factors of this kind of carrier.

La présente invention a pour but de remédier à cet inconvénient.The object of the present invention is to remedy this drawback.

L'installation selon la présente invention est caractérisée par le fait que les surfaces de coincement de chaque sellette se prolongent par deux dents formant une fourche de guidage, des moyens étant prévus pour solliciter la sellette en pivotement vers une position dans laquelle les dents encadrent la câble lorsque, au cours d'un soulèvement intempestif de la sellette, les surfaces de coincement se dégagent du câble.The installation according to the present invention is characterized in that the wedging surfaces of each harness extend by two teeth forming a guide fork, means being provided for urging the harness in pivoting towards a position in which the teeth frame the cable when, during an untimely lifting of the harness, the wedging surfaces are released from the cable.

En fonctionnment normal, la fourche est inactive, ses dents s'étendant parallèlement à la direction du câble dans le prolongement des surfaces de coincement de la sellette sur le câble. Lors d'un mouvement relatif de la sellette par rapport au câble, en l'occurrence d'un soulèvement, le câble se dégage des surfaces de coincement en V inversé et autorise un pivotement de la sellette amenant la fourche en position active, abaissée, enfourchée sur le câble. Cette fourche assure le guidage de la sellette qui vient se reposer automatiquement sur le câble en position d'accouplement à la fin de l'oscillation. La longueur des dents de la fourche doit être suffisante pour assurer le guidage de la sellette lors des amplitudes maximales de soulèvement susceptibles d'intervenir en fonctionnement. Lors d'un soulèvement, le mouvement de bascule de la fourche vers le bas est provoqué par le déséquilibre de poids entre la partie arrière et la partie avant de la sellette par rapport à son axe de pivotement. Cette action est accentuée celle d'un ressort en épingle pour accroître la rapidité du mouvement. Le désaccouplement de la charge nécessite bien entendu un soulèvement correspondant.In normal operation, the fork is inactive, its teeth extending parallel to the direction of the cable in line with the wedging surfaces of the harness on the cable. During a relative movement of the harness relative to the cable, in this case a lifting, the cable emerges from the wedging surfaces in an inverted V and allows the pivoting of the harness bringing the fork into the active, lowered position, straddled on the cable. This fork guides the harness which automatically rests on the cable in the coupling position at the end of the oscillation. The length of the fork tines must be sufficient to guide the harness during the maximum lifting amplitudes likely to occur during operation. During an uplift, the tilting movement of the fork downwards is caused by the imbalance of weight between the rear part and the front part of the harness relative to its pivot axis. This action is accentuated that of a pin spring to increase the speed of movement. Uncoupling the load obviously requires a corresponding lifting.

Selon un développment de l'invention; la fourche s'étend à l'arrière de la sellette pour éviter tout cambrage lors de l'engegement sur le câble, notamment à l'accouplement de la charge. L'ensemble est particulièrement simple et robuste et ne fait appel à aucun mécanisme de verrouillage ou de commande spécial.According to a development of the invention; the fork extends at the rear of the harness to avoid any bending when unloading on the cable, in particular when coupling the load. The assembly is particularly simple and robust and does not require any special locking or control mechanism.

L'adhérence de la sellette par coincement sur le câble peut être insuffisante saur les tronçons de grande pente et il a déjà été proprosé d'accroître cette adhérence par l'emploi de surfaces de coincement portant un ergot en saillie qui s'incruste dans le pourtour du câble (DE-C-78.956). Les ergots fixes perdent totalement ou partiellement leur efficacité sur des câbles usés ou du fait de leur propre usure, ou encore lors d'un soulèvement de la sellette. Selon un développement de l'invention, l'ergot de verrouillage est monté mobile sur la sellette et sollicité au contact du câble. Le bord de l'ergot au contact du câble épouse avantageusement le pourtour du câble et est conformé pour s'intercaler entre deux torons pour accroître l'effet de verrouillage. Lorsque la sellette comporte une fourche de guidage, l'ergot est disposé à l'avant de la sellette du côté opposé de la fourche par rapport à l'axe d'articulation, de manière à être relevé en position pivotée de la sellette. L'ergot est avantageusement solidaire d'un coulisseau vertical sollicité par gravité ou par un ressort en position de saillie au contact du câble. Lors de l'accouplement le câble pénètre d'abord entre les dents de la fourche de guidage, puis entre les surfaces de coincement, qui assurent la synchronisation des mouvements avant l'engagement de l'ergot entre les torons, qui s'effectue sans mouvement relatif et de ce fait sans usure. Il est clair que la sellette peut comporter plusieurs ergots mobiles, solidaires ou indépendants, ces ergots pouvant être utilisés en combinaison ou non de la fourche de guidage.The grip of the harness by jamming on the cable may be insufficient, knowing the long slope sections and it has already been proposed to increase this grip by the use of jamming surfaces carrying a protruding lug which is embedded in the circumference of the cable (DE-C-78.956). Fixed lugs lose their effectiveness in whole or in part on worn cables or due to their own wear, or even when the harness is lifted. According to a development of the invention, the locking lug is mounted mobile on the harness and urged in contact with the cable. The edge of the lug in contact with the cable advantageously follows the periphery of the cable and is shaped to be inserted between two strands to increase the locking effect. When the harness has a guide fork, the lug is disposed at the front of the harness on the opposite side of the fork with respect to the articulation axis, so as to be raised in the pivoted position of the harness. The lug is advantageously secured to a vertical slide urged by gravity or by a spring in the projecting position in contact with the cable. When coupling the cable first enters between the teeth of the guide fork, then between the wedging surfaces, which ensure synchronization of movements before the engagement of the lug between the strands, which takes place without relative movement and therefore wear-free. It is clear that the harness can include several movable pins, integral or independent, these pins can be used in combination or not with the guide fork.

Le chariot de support de la charge comporte généralement deux sellettes d'accouplement et il est avantageux de déterminer l'espacement entre les deux sellettes, de telle manière que lorsque l'ergot de l'une des sellettes est inséré entre deux torons du câble, l'ergot de l'autre sellette est en butée sur un toron, de manière à être assuré de l'engagement d'au moins un ergot entre des torons pour toute position relative du chariot.The load support trolley generally has two coupling harnesses and it is advantageous to determine the spacing between the two harnesses, so that when the lug of one of the harnesses is inserted between two strands of the cable, the lug of the other harness is in abutment on a strand, so as to be assured of the engagement of at least one lug between strands for any relative position of the carriage.

Selon un autre développement du l'invention, les galets ou poulies de support du câble présentent latéralement de la gorge de guidage du câble des gorges autorisant un pivotement latéral accru des sellettes sans risque de contact des bords des surfaces de coincement avec le fond de la gorge du galet. Cette disposition est particulièrement intéressante pour des sellettes à faible angle des surfaces de coincement dont la profondeur de pénétration sur le câble varie fortement avec l'amincissement du câble. Cette possibilité d'avoir des angles plus faibles permet d'augmenter l'adhérence des deux surfaces en contact avec le câble.According to another development of the invention, the rollers or pulleys for supporting the cable have laterally guide grooves of the groove cable allowing increased lateral pivoting of the harnesses without risk of contact of the edges of the wedging surfaces with the bottom of the roller groove. This arrangement is particularly advantageous for harnesses with a small angle of the wedging surfaces whose penetration depth on the cable varies greatly with the thinning of the cable. This possibility of having smaller angles makes it possible to increase the adhesion of the two surfaces in contact with the cable.

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

  • la figure 1 est une vue schématique en élévation d'un chariot accouplé à un câble d'un transporteur selon l'invention, la sellette de droite étant représentée en trait discontinu en position pivotée;
  • les figures 2, 3 et 4 sont des vues respectivement en élévation, en plan et de côté, à échelle agrandie, d'un sellette du chariot selon la figure 1 ;
  • la figure 5 est une vue de été illustrant le passage d'une sellette sur une poulie de support à gorges multiples;
  • la figure 6 est une vue schématique du transporteur.
Other advantages and characteristics of the invention will emerge more clearly from the description which follows of an embodiment given by way of example and represented in the appended drawings, in which:
  • Figure 1 is a schematic elevational view of a carriage coupled to a cable of a conveyor according to the invention, the right harness being shown in broken lines in the pivoted position;
  • Figures 2, 3 and 4 are views respectively in elevation, in plan and side, on an enlarged scale, of a fifth wheel of the carriage according to Figure 1;
  • FIG. 5 is a summer view illustrating the passage of a fifth wheel over a multi-grooved support pulley;
  • Figure 6 is a schematic view of the conveyor.

Sur les figures, un câble tracteurporteur 10 d'un transporteur aérien à câble défile en continu pour le transport de charges le long de la ligne. Les charges ou bennes sont accouplées à la station de départ au câble 10 et désaccouplées automatiqument à la station d'arrivée., Chaque benne est fixée par une suspente dont seul l'axe 12 est représenté, à un chariot 14 par l'intermédiaire d'un axe d'articulation 16. Le chariot 14 comporte deux sellettes 18, 20 d'accouplement au câble 10, qui sont montées à pivotement sur des axes 22, 24 symétriquement de l'axe 16 et seront décrites en détail ci-dessous. Le chariot 14 comporte de plus des galets de roulement (non représentés) susceptibles de rouler sur des rails de transfert dans les stations.In the figures, a tractor-carrying cable 10 of an overhead cable conveyor runs continuously for the transport of loads along the line. The loads or skips are coupled to the departure station with cable 10 and automatically uncoupled from the arrival station., Each bucket is fixed by a hanger of which only the axis 12 is shown, to a carriage 14 via 'an axis of articulation 16. The carriage 14 comprises two harnesses 18, 20 for coupling to the cable 10, which are pivotally mounted on axes 22, 24 symmetrically of the axis 16 and will be described in detail below. The carriage 14 further comprises rollers (not shown) capable of rolling on transfer rails in the stations.

Les sellettes 18, 20 sont identiques et seule l'une 18 est décrite en détail par la suite plus particulièrement en référence aux figures 3 à 5. Le corps de la sellette 18, articulé sur l'axe 22, présente à sa base deux surfaces de coincement 26, 28, ou mâchoires fixes disposées en V inversé pour venir coiffer la câble 10 en position accouplée de la sellette 18 et serrer le câble 10 sous l'effet du poids de la charge transportée. L'inclinaison des surfaces de coincement 26, 28 permet une compensation de l'usere ou de l'amincissement du câble 10 et elle est déterminée pour obtenir un effort de coincement maximal pour une charge donnée. Les surfaces de coincement 26, 28 se prolongent à l'arrière de la sellette 18 par deux dents 30, 32 formant une fourche susceptible d'encadrer le câble 10. Dans la position d'accouplement représentée aux figures, les dents 30, 32 s'étendent suivant la direction longitudinale du câble 10, sans augmentation du gabarit de passage sur les galets de support.The harnesses 18, 20 are identical and only one 18 is described in detail below, more particularly with reference to FIGS. 3 to 5. The body of the harness 18, articulated on the axis 22, has at its base two surfaces wedging 26, 28, or fixed jaws arranged in inverted V to come cover the cable 10 in the coupled position of the harness 18 and tighten the cable 10 under the effect of the weight of the load transported. The inclination of the wedging surfaces 26, 28 makes it possible to compensate for the wear or the thinning of the cable 10 and it is determined to obtain a maximum wedging force for a given load. The wedging surfaces 26, 28 extend behind the fifth wheel 18 by two teeth 30, 32 forming a fork capable of framing the cable 10. In the coupling position shown in the figures, the teeth 30, 32 s 'extend in the longitudinal direction of the cable 10, without increasing the clearance gauge on the support rollers.

En position libre de la sellette 18, cette dernière pivote dans le sens trigonométrique sur les figures 1 et 3, soit par gravité résultant d'un déséquilibre, soit par l'action d'un ressort (non représenté) pour venir dans la position pivotée 18', représentée en trait discontinu à la figure 1, correspondant à un abaissement de la fourche 30, 32.In the free position of the harness 18, the latter pivots counterclockwise in FIGS. 1 and 3, either by gravity resulting from an imbalance, or by the action of a spring (not shown) to come into the pivoted position 18 ′, shown in broken lines in FIG. 1, corresponding to a lowering of the fork 30, 32.

Les dispositif fonctionne de la mainière suivante:

  • A la station de départ le chariot 14 est amené à l'aplomb du câble 10 et par roulement sur un rail incliné se pose sur la câble 10. Les sellettes 18, 20 serrées sur le câble 10 assurent le support et l'entramement de la charge et du chariot 14 vers la station d'arrivée où le désaccouplement s'effectue automatiquement par une rampe qui soulève le chariot 14. Lorsque le chariot 14 se soulève intempestivement en cours de trajet, notamment lors d'une oscillation du câble 10 vers la position 10', les surfaces de coincement 26, 28 se dégegeent du câble. Sous l'action du ressort et/ou par gravité les sellettes 18, 20 pivotent dans le sens trigonométrique (figure 1 ) vers le bas, le câble 10' restant emprissonné dans les fourches 30, 32. Le chariot 14, temporairement désaccouplé du câble 10', reste guidé par les fourches 30, 32 et se repose automatiquement sur le câble en fin d'oscillation, les sellettes 18, 20 reprenant leur position d'origine d'effacement des fourches 30, 32 autorisant le libre passage sur les galets. A l'accouplement et au désaccouplement le soulèvement du chariot 14 doit être suffisant pour dégager le câble des fourches 30, 32. La longueur des fourches 30, 32 est choisie en fonction des hauteurs maximales de soulèvement du chariot 14 pour éviter tout risque de déraillement. Les fourches 30, 32 peuvent contribuer au guidage du chariot 14 lors de l'accouplement ou du désaccouplement.
The devices operate in the following manner:
  • At the departure station, the carriage 14 is brought in line with the cable 10 and by rolling on an inclined rail is placed on the cable 10. The harnesses 18, 20 tightened on the cable 10 provide support and entramement of the load and from the carriage 14 towards the arrival station where the uncoupling takes place automatically by a ramp which lifts the carriage 14. When the carriage 14 inadvertently lifts during the journey, in particular during an oscillation of the cable 10 towards the position 10 ′, the wedging surfaces 26, 28 are released from the cable. Under the action of the spring and / or by gravity the harnesses 18, 20 pivot in a counterclockwise direction (FIG. 1) downwards, the cable 10 'remaining trapped in the forks 30, 32. The carriage 14, temporarily uncoupled from the cable 10 ', remains guided by the forks 30, 32 and rests automatically on the cable at the end of oscillation, the harnesses 18, 20 returning to their original position for erasing the forks 30, 32 allowing free passage on the rollers . When coupling and uncoupling the lift of the carriage 14 must be sufficient to release the cable from the forks 30, 32. The length of the forks 30, 32 is chosen according to the maximum lift heights of the carriage 14 to avoid any risk of derailment . The forks 30, 32 can contribute to guiding the carriage 14 during coupling or uncoupling.

Sur la partie antérieure 36 de la sellette 18, 20 est monté à coulissement un ergot 34, à l'intérieur d'un logement sensiblement vertical en position d'accouplement de la sellette (fig. 2). La partie supérieure de l'ergot 34 porte une tête 38 limitant l'enfoncement de l'ergot 34 et soumis à l'action d'un ressort à lame 40, qui pousse l'ergot 34 au fond de son logement. La partie inférieure de l'ergot 34 est conformée en arête 42 qui débouche dans le fond de la gorge confinée par les surfaces de coincement 26, 28. En position d'accouplement de la sellette 18, l'arête 42 coopère avec la face supérieure du câble 10 engagé entre les surfaces 26, 28 et l'arête 42 est inclinée par rapport à l'axe du câble 10 d'un angle correspondant à la pente des torons du câble 10 pour permettre son insertion entre deux torons successifs. La tranche 44 de l'arête 42 est concave pour épouser le pourtour du câble. La course de l'ergot 34 est suffisante pour maintenir en tous les cas le contact avec le câble enserré entre les surfaces 26, 28. La présence de l'ergot 38 accroît l'adhérence de la sellette et permet le franchissement de tronçons à forte pente.On the front part 36 of the harness 18, 20 is slidably mounted a lug 34, inside a substantially vertical housing in the coupling position of the harness (fig. 2). The upper part of the lug 34 carries a head 38 limiting the sinking of the lug 34 and subjected to the action of a leaf spring 40, which pushes the lug 34 to the bottom of its housing. The lower part of the lug 34 is shaped as an edge 42 which opens into the bottom of the groove confined by the wedging surfaces 26, 28. In the coupling position of the fifth wheel 18, the edge 42 cooperates with the upper face of the cable 10 engaged between the surfaces 26, 28 and the edge 42 is inclined relative to the axis of the cable 10 by an angle corresponding to the slope of the strands of the cable 10 to allow its insertion between two successive strands. The edge 44 of the edge 42 is concave for follow the edge of the cable. The stroke of the lug 34 is sufficient to maintain in any case the contact with the cable clamped between the surfaces 26, 28. The presence of the lug 38 increases the grip of the harness and allows the crossing of sections with strong slope.

Il est à noter l'articulation des sellettes 18, 20 sur le chariot 14 évite tout engagement de l'ergot 34 préalablement à l'accouplement par coincement entre les surfaces 26, 28 et de ce fait toute usure par frottement sur le câble. 10. L'écartement des axes 22, 24 d'articulation des sellettes 18, 20 est déterminé en fonction du pas de l'hélice des torons du câble 10, de façon à avoir toujours au moins l'un des ergots 34 engagé entre des torons. L'ergot 34 peut facilement être remplacé en cas d'usure et grâce à sa mobilité il assure fonction de verrouillage même sur un câble aminci.It should be noted the articulation of the harnesses 18, 20 on the carriage 14 avoids any engagement of the lug 34 prior to coupling by wedging between the surfaces 26, 28 and therefore any wear by friction on the cable. 10. The spacing of the axes 22, 24 of articulation of the harnesses 18, 20 is determined as a function of the pitch of the helix of the strands of the cable 10, so as to always have at least one of the lugs 34 engaged between strands. The lug 34 can easily be replaced in the event of wear and thanks to its mobility it ensures locking function even on a thinned cable.

En se référant plus particulièrement à la figure 5, on voit en profil de gorge d'un galet 46 de support du câble 10, conçu pour faciliter le passage des sellettes 18, 20 d'accouplement. Le câble 10, représenté à la figure 5, est aminci et à la limite d'usure et la settette 18 reposé pratiquement par son fond sur le câble 10. Le galet 46 présente une gorge centrale 48 de guidage du câble 10 encadrée de part et autre de gorges 50, 52, dont l'espacement correspond à l'écartement des bords 54, 56 inférieurs des mâchoires fixes de serrage à surface de coincement 26, 28. Les gorges 50 52 sont délimitées latéralement par les flasques 58, 60 de la manière usuelle. L'ensemble est agencé pour que seule la position centrale du câble 10, représentée à la figure 5, soit une position stable, et il est facile de voir que la présence des gorges 50, 52 autorise un pivotement accru de la sellette 18 sans risque de butée des bords 54, 56 contre le galet 46. La sensibilité au vent latéral est ainsi diminuée, malgré l'emploi de mâchoires à faible angle de coincement du câble.Referring more particularly to FIG. 5, we can see in the groove profile of a roller 46 for supporting the cable 10, designed to facilitate the passage of the coupling harnesses 18, 20. The cable 10, shown in FIG. 5, is thinned and at the wear limit and the settette 18 rests practically by its bottom on the cable 10. The roller 46 has a central groove 48 for guiding the cable 10 framed on the side and another of grooves 50, 52, the spacing of which corresponds to the spacing of the lower edges 54, 56 of the fixed clamping jaws with wedging surface 26, 28. The grooves 50 52 are delimited laterally by the flanges 58, 60 of the usual way. The assembly is arranged so that only the central position of the cable 10, shown in FIG. 5, is a stable position, and it is easy to see that the presence of the grooves 50, 52 allows increased pivoting of the harness 18 without risk of abutment of the edges 54, 56 against the roller 46. The sensitivity to lateral wind is thus reduced, despite the use of jaws with a small angle of jamming of the cable.

La combinaison de ces perfectionnements assure une fiabilité accrue permettant un fonctionnement à vitesse supérieure de l'installation sans risque de déraillement ou de glissement des chariots.The combination of these improvements ensures increased reliability allowing higher speed operation of the installation without the risk of derailment or sliding of the carriages.

Claims (9)

1. Transport installation with a continuously moving aerial cable (10) comprising load support cars (14) which may be coupled to the carrying-haulage cable for carrying the load by saddles (18, 20) bestriding the cable and having gripping surfaces (26, 28) or stationary inverted V shaped jaws which bestride and grip the cable under the action of the weight of the load, each saddle (18, 20) being pivotally mounted on the car (14) to allow a movement in the vertical plane containing the cable (10), characterized by the fact that the gripping surfaces (26, 28) of each saddle (18, 20) are extended by two teeth (30, 32) forming a guiding fork, means being provided for biasing pivotally the saddle (18, 20) towards the position wherein the teeth (30, 32) surrounds the cable (10) when during an untimely uplift of the saddle the gripping surfaces (26, 28) leave the cable.
2. Installation according to claim 1, characterized in that the teeth (30, 32) of said fork extend on the rearside of the gripping surfaces with respect to the direction of travel of the saddle, and substantially parallel to the cable in the couple position of the saddle.
3. Monacable transport installation comprising load support cars (14) having coupling saddles (18, 20) with gripping surfaces (26, 28) or stationary jaws for gripping the cable (10) under the action of the load weight, each saddle comprising a pin (34) protruding from said gripping surfaces to cooperate with the cable (10), characterized by the fact that said pin (34) is slidingly mounted and cooperates with the upper face of the cable and that means (40) biases the pin into contact with the cable to hinder slipping of the saddle onto the cable.
4. Installation according to claim 3 and claim 2, characterized in that said movable pin (34) is disposed on the foreside of the saddle (18, 20), opposite to the side of the fork (30, 32) with respect to the pivot axis (22) of the saddle.
5. Installation according to claim 3 or 4, characterized in that said pin (34) is secured to a vertical slide biased towards the protruded position in contact with the cable by its weight or by a spring.
6. Installation according to claim 3, 4 or 5, characterized in that the tip (42) of said movable pin (34) is shaped as an inclined edge (44) corresponding to the lay angle of the wires of the cable.
7. Installation according to claim 6, characterized in that the end of said edge (44) is concave shaped corresponding to the outer shape of the cable (1µ).
8. Installation according to any one of the preceding claims 4 to 7, having a car (14) with two saddles (18, 20) characterized in that the distance between the articulation axes (22) of the two saddles is determined in accordance with the pitch of the spiral of the wires so that the edge (44) of at least one of the edges fits between the wires.
9. Installation according to any one of the preceding claims, having stationary jaws (26, 28) with an acute top angle, characterized by a cable (10) support sheave (46) having a central cable (10) guiding groove (48) surrounded by two side grooves (50, 52) wherein the two jaws (26, 28) ends (54, 56) may engage during a lateral oscillation.
EP80401182A 1979-08-27 1980-08-12 Saddle cable grippers with guiding forks and antislipping device for monocable aerial-transportation cars Expired EP0024975B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80401182T ATE4039T1 (en) 1979-08-27 1980-08-12 SADDLE-SHAPED ROPE GRAB WITH GUIDE FORK AND ANTI-SLIP DEVICE FOR CARRIAGES OF A MOBILE LIFT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7921623 1979-08-27
FR7921623A FR2464170A1 (en) 1979-08-27 1979-08-27 GUIDING FORK SLINGS AND ANTI-SLIP DEVICE FOR SINGLE AIR CARRIER WAGONNETS

Publications (2)

Publication Number Publication Date
EP0024975A1 EP0024975A1 (en) 1981-03-11
EP0024975B1 true EP0024975B1 (en) 1983-07-06

Family

ID=9229162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80401182A Expired EP0024975B1 (en) 1979-08-27 1980-08-12 Saddle cable grippers with guiding forks and antislipping device for monocable aerial-transportation cars

Country Status (9)

Country Link
US (1) US4364314A (en)
EP (1) EP0024975B1 (en)
JP (1) JPS5634562A (en)
AT (1) ATE4039T1 (en)
BR (1) BR8005330A (en)
DE (1) DE3064041D1 (en)
FR (1) FR2464170A1 (en)
IN (1) IN153938B (en)
YU (1) YU211280A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549430B1 (en) * 1983-07-21 1986-03-21 Grenoble Inst Nal Polytechni DEVICE FOR FIXING A CABLE CAR OR A CABLE LIFT ON A CABLE PROVIDED WITH A ROLLING SURFACE FOR PULLETS
US4658733A (en) * 1985-08-19 1987-04-21 Kunczynski Jan K Aerial tramway grip assembly
US4860664A (en) * 1985-08-19 1989-08-29 Zygmunt A. Kunczynski Haul rope grip assembly for aerial tramway with elastic block jaw actuating means
JP2511035B2 (en) * 1986-05-12 1996-06-26 ポマガルスキイ ソシエテ アノニム Aerial cable transport equipment

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US530902A (en) * 1894-12-11 John pearce roe
DE78956C (en) * ROPEWAYS SYNDICATE LTD., London Cable grab for overhead trolleys
US444408A (en) * 1891-01-06 Bucket-clip for wire-rope tramways
US438949A (en) * 1890-10-21 Appakatus for transporting loads by means of traveling
US338615A (en) * 1886-03-23 bedling-ton
US1364208A (en) * 1919-04-22 1921-01-04 Rennie William Trolley
US1391741A (en) * 1920-07-22 1921-09-27 Christian E Liebenberg Trolley-wheel
FR1455899A (en) * 1965-05-20 1966-10-21 Pomagalski Jean Sa Clutchable and disengageable hitch for aerial cable transport or towing installations
AT337249B (en) * 1970-06-26 1977-06-27 Senn Dipl Ing Dr Techn Eduard HANGER WITH A DRIVE AND TWO CLAMPING DEVICES TO CONNECT AND DISCONNECT THE HANGER
AT321357B (en) * 1970-06-26 1975-03-25 Senn Dipl Ing Dr Techn Eduard Hanger with one drive and two clamping devices For coupling and uncoupling the hanger
FR2257508A1 (en) * 1973-09-04 1975-08-08 David Henri Overhead cable conveyor saddle - has compression springs to absorb shocks caused by passing over pulleys
FR2264695A1 (en) * 1974-03-22 1975-10-17 Baudin Chateauneuf Cable connection for cable car - has pivotal and sliding blocks in bogie supporting cable

Also Published As

Publication number Publication date
JPS5634562A (en) 1981-04-06
DE3064041D1 (en) 1983-08-11
ATE4039T1 (en) 1983-07-15
EP0024975A1 (en) 1981-03-11
US4364314A (en) 1982-12-21
FR2464170B1 (en) 1983-05-13
YU211280A (en) 1984-02-29
BR8005330A (en) 1981-03-04
FR2464170A1 (en) 1981-03-06
IN153938B (en) 1984-09-01

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