EP0018888B1 - Kontrollvorrichtung der Klemmwirkung der Klemmbacken an einer Seilbahn - Google Patents

Kontrollvorrichtung der Klemmwirkung der Klemmbacken an einer Seilbahn Download PDF

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Publication number
EP0018888B1
EP0018888B1 EP80400535A EP80400535A EP0018888B1 EP 0018888 B1 EP0018888 B1 EP 0018888B1 EP 80400535 A EP80400535 A EP 80400535A EP 80400535 A EP80400535 A EP 80400535A EP 0018888 B1 EP0018888 B1 EP 0018888B1
Authority
EP
European Patent Office
Prior art keywords
cable
grips
disc
eccentric
grip
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
EP80400535A
Other languages
English (en)
French (fr)
Other versions
EP0018888A1 (de
Inventor
Roger Laurent
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 AT80400535T priority Critical patent/ATE1982T1/de
Publication of EP0018888A1 publication Critical patent/EP0018888A1/de
Application granted granted Critical
Publication of EP0018888B1 publication Critical patent/EP0018888B1/de
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
    • B61B12/06—Safety devices or measures against cable fracture
    • 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 clamp tightening control device for an overhead cable transport installation having load carrying carriages capable of being coupled to said cable by a pair of clamps staggered along the cable and connected by a beam in the form of a rigid load support spacer so as to allow a relative movement of movement in the longitudinal direction of the cable of said clamps, each clamp comprising a clamp body with a longitudinal axis transverse to the cable in the clamped position of the clamp, said body being pivotally mounted along said longitudinal axis on said beam, and said control device comprising means for biasing said clamps coupled to the cable in a displaced position of spacing or approximation with a predetermined force greater than the minimum force of required adhesion and a slip detector of any of the clamps on the cable under the action of said f orce.
  • FR-A-2200 1411 Another known system (FR-A-2200 141) uses an articulated beam, the axis of articulation of which is offset relative to the axes of articulation or of attachment of the clamps.
  • the joint weakens the rigidity of the beam and the inevitable clearances affect the reliability of the control.
  • the normal position is an unstable position and any incorrect positioning results in forces due to the weight of the load and tending to spread or bring the clamps closer.
  • the present invention aims to remedy these drawbacks and allow the realization of a simple and effective control device which does not affect the intrinsic qualities of legitimateness and robustness of conventional carriages.
  • the control device is characterized in that one of the clamps is secured to the beam by an eccentric formed by a disc, mounted for rotation by its external periphery on said beam and by said clamp body, mounted at rotation eccentrically on said disc and that said biasing means is integral with said disc to pivotally bias said disc during the tightening check.
  • the relatively large diameter of the disc contributes to correct guidance and positioning.
  • the eccentric shaft is formed by the clamp body articulated on the eccentric disc and the transformation of the rotational movement into a translational movement by the eccentric is almost irreversible, which has the advantage of limiting influence of load weight on tightening control.
  • the clamping clamping trolley uses standard parts, only the spacer beam being different at one of its ends for housing the eccentric disc.
  • the pivoting of the eccentric is limited by a stop defining a position of low overshoot of the neutral position.
  • the weight of the load combined with a return spring, urges and maintains the eccentric in the stop position and the eccentric beam assembly behaves, outside the tightening control phase, like a rigid beam.
  • the eccentric control lever cooperates in the usual manner for controlling the tightening, with a flap extending along the path of movement of the carriage, before leaving the station.
  • the force exerted by the control lever is insufficient to turn the eccentric and slip the clamp (s) onto the cable.
  • a signaling device indicates the correct tightening of the clamps and the cabin or tipper continues its journey by engaging on the line.
  • the pivoting of the eccentric and the associated control lever is detected so as to stop the installation. The control is carried out after clutching the clamps on the cable and no intervention is carried out between the moment when the clamps are deemed to be tightened and the control itself.
  • a carriage 10 for supporting a cabin of an overhead cable transport installation for example of a cable car, comprises ' two clamps 12, 14, capable of enclosing a cable 16, in particular a carrying cable tractor or in the case of a two-cable installation a cable tractor.
  • the clamps 12, 14 are of the disengageable type for uncoupling the cabins from the cable 16 in the stations.
  • the frame of the carriage 10 is constituted by a spacer beam 18, to which the hanger 20 of the cabin is articulated.
  • One end of the beam 18 carries a socket 22 for articulation of the body 24 of the clamp 14 and the other end carries a socket 26 of greater diameter for the articulation of a disc 28 of an eccentric designated by the general reference 30.
  • the sleeve-shaped disc 28 has a bore with an axis 32, eccentric with respect to the axis 34 of the disc 28 and the body 36 of the clamp 12 is rotatably mounted in the bore with axis 32.
  • the socket 26 has a collar 40 having a light 42 in the form of an arc of a circle crossed by a fixing piece 44 of a lever 46 to the disc 28.
  • the light 42 allows a limited movement of the lever 46 in a vertical plane and a corresponding rotation of the disc 28.
  • the lever 46 carries at its end a roller 48 capable of cooperating with a control flap 50 biased by a spring 52 in support of a stop 54.
  • the flap 50 extends along a section of the path of movement of the carriage 10, corresponding to the section for controlling the clamping of the clamps.
  • a spring biases the disc 28 towards the normal position shown in FIG. 2 for supporting the part 44 against the bottom of the light 42.
  • Each clamp body 24, 36 carries rollers 38 for rolling the carriage 10 on rails 56 for transfer to the stations.
  • the disc 28 In the normal position of the eccentric 30 the disc 28 is held by the spring in a stop position with little protrusion of the dead center of the eccentric, defined by the vertical position of the straight line passing through the axes 32, 34.
  • This straight line for example makes an angle a of about 20 ° with the vertical in the counterclockwise direction, and it is easy to see that the position is stable, the weight of the cabin transmitted by the beam 18 tending to rotate the eccentric 30 in a counterclockwise direction by strengthening the bearing force of the disc 28 in the stop position (fig. 2).
  • the roller 48 is offset laterally from the vertical passing through the axis 34 of the disc 28 and a vertical force exerted on the roller 48, by the flap 50, generates a moment tending to rotate the disc 28 clockwise. a watch.
  • the carriage 10 is uncoupled from the cable 16 and rolls on the rails 56 before being re-coupled to the cable 16 in a manner well known to specialists.
  • the coupling zone is followed by a clamping control zone 12, 14, in which the carriage 10, driven by the cable 16 and rolling on the rails 56, passes under the flap 50, which tends to push down. the roller 48 and to rotate the eccentric 30 clockwise.
  • the two clamps 12, 14 are correctly tightened on the cable 16, the invariable distance of the clamps 12, 14 prevents any rotation of the eccentric 30 and the flap 50 yields against the spring 52 to leave the passage to the lever 46 and to the roller 48.
  • the eccentric 30 rotates clockwise under the action of the force exerted by the flap 50 on the lever 46, by sliding on the cable 46, by sliding the cable (s) insufficiently tight on cable 16.
  • the pivoting of the lever 46 signals the shifting and triggers by any suitable means the stopping of the installation (fig. 3).
  • the force of the spring 52 for holding the flap 50 in the active position is obviously chosen so as to exert on the clamps 12, 14 a predetermined spacing force suitable for controlling the tightening.
  • the eccentric transmission is very precise and allows the detection of the slightest slip of a clamp on the cable.
  • the limited rotation of the eccentric around the equilibrium position limits the relative movement of the grippers and variations in the cabin load do not affect the precision of the control.
  • the assembly is simple and reliable and makes extensive use of standard parts.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Processing Of Terminals (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Claims (6)

1. Kontrollvorrichtung der Klemmwirkung der Klemmen (12, 14) einer Luftseil-Fördervorrichtung (16) mit Lasttragwagen (10), die an das genannte Seil mittels einem Paar Klemmen (12, 14) kuppelbar sind, wobei die Klemmen längs des Seiles gestaffelt und durch einen steifen Lasttragzwischenbalken (18) so verbunden sind, dass eine Verschiebung der genannten Klemmen in der Längsrichtung des Seiles möglich ist, wobei jede Klemme (12, 14) einen Klemmkörper (24, 36) mit einer in gekuppelter Lage der Klemme quer zum Seil (16) stehenden Längsachse aufweist, wobei der genannte Körper auf dem genannten Balken (18) durch die genannte Längsachse schwenkbar gelagert ist, und wobei die genannte Kontrollvorrichtung versehen ist mit einem Mittel (50, 46) zum Drängen der genannten an das Seil gekuppelten Klemmen in eine entfernte oder genäherte verstellte Lage, mit einer vorbestimmten Kraft, die grösser ist als die minimal erforderte Haftkraft und mit einer das Rutschen auf das Seil von irgendeiner Klemme, unter der Wirkung der genannten Kraft, anzeigenden Anzeigevorrichtung, dadurch gekennzeichnet, dass eine (12) der Klemmen durch ein Exzenter (30) mit dem Balken (18) verbunden ist, welcher Exzenter aus einer durch seinen Aussenrand drehbar auf dem genannten Balken (18) gelagerten Scheibe (28) und dem genannten exzentrisch auf der genannten Scheibe (28) drehbar gelagertem Klemmkörper (36) besteht, und dass das genannte Drängmittel (46) mit der genannten Scheibe (28) verbunden ist, um die genannte Scheibe (28) während der Klemmwirkungskontrolle in Drehrichtung zu drängen.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass ein Anschlag (42, 44) die Schwenkung der genannten exzentrischen Scheibe (28) in einer Drehrichtung beschränkt, wobei die Anschlagslage der normalen Lage der an das Seil gekuppelten Klemmen (12, 14) entspricht, und dass das genannte Drängmittel (50, 46) die genannte Scheibe in eine von dem Anschlag entfernte Lage, gegenüber des Haftkraft der Klemmen auf das Seil, drängt.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in der normalen Lage der genannten an das Seil (16) gekuppelten Klemmen (12, 14) der genannte Exzenter (30) in einer stabilen Stellung steht, wobei die durch die Achse (34) der Scheibe (28) des Exzenters und die Schwenkachse (32) des Klemmkörpers (36) laufende Gerade einen beschränkten spitzen Winkel (a) mit der Senkrechten bildet, so dass das Gewicht der Last die Scheibe des Exzenters in Anschlaglage hält.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der genannte beschränkte, spitze Winkel ungefähr 20° beträgt.
5. Vorrichtung nach irgend einem der vorigen Ansprüche, dadurch gekennzeichnet, dass die Scheibe (28) des Exzenters einen Steuerhebel (46) trägt, der in der senkrechten Ebene schwenkbar ist und zur Klemmwirkungskontrolle der Klemmen (12, 14) mit einer sich parallel zur Bewegungsrichtung des Wagens (10) erstreckenden Schiene (50) zusammenarbeitet, wobei die genannte Schiene bei der Durchfahrt des Wagens eine Schwenkkraft auf den genannten Hebel ausübt.
6. Vorrichtung nach irgend einem der vorigen Ansprüche, dadurch gekennzeichnet, dass die Schwenkbewegung des Exzenters (30) durch ungefähr symmetrisch gegenüber dem unstabilen Totpunkt des Exzenters stehenden Anschläge (42, 44) begrenzt ist.
EP80400535A 1979-05-02 1980-04-21 Kontrollvorrichtung der Klemmwirkung der Klemmbacken an einer Seilbahn Expired EP0018888B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400535T ATE1982T1 (de) 1979-05-02 1980-04-21 Kontrollvorrichtung der klemmwirkung der klemmbacken an einer seilbahn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7911231A FR2455537A1 (fr) 1979-05-02 1979-05-02 Dispositif de controle du serrage des pinces d'accouplement a un cable aerien
FR7911231 1979-05-02

Publications (2)

Publication Number Publication Date
EP0018888A1 EP0018888A1 (de) 1980-11-12
EP0018888B1 true EP0018888B1 (de) 1982-12-15

Family

ID=9225017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400535A Expired EP0018888B1 (de) 1979-05-02 1980-04-21 Kontrollvorrichtung der Klemmwirkung der Klemmbacken an einer Seilbahn

Country Status (4)

Country Link
EP (1) EP0018888B1 (de)
AT (1) ATE1982T1 (de)
DE (1) DE3061317D1 (de)
FR (1) FR2455537A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT409255B (de) * 1997-11-28 2002-07-25 High Technology Invest Bv Klemme für eine kuppelbare seilbahn

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH493353A (de) * 1968-07-08 1970-07-15 Von Roll Ag Einrichtung zum Festklemmen eines Transportgerätes an einem Zugseil und zum Anzeigen einer ungenügenden Klemmverbindung
US3574114A (en) * 1968-08-05 1971-04-06 Bell Telephone Labor Inc Fine grain ceramic ferrites
CH518207A (de) * 1970-01-07 1972-01-31 Walter Staedeli Maschb Klemmkraft-Prüfanlage für Seilbahn mit kontinuierlich umlaufendem Förderseil
CH518822A (de) * 1970-12-11 1972-02-15 Wallmannsberger Georg Ing Dr Abziehkraft-Prüfvorrichtung für angekuppelte Wagen von Umlaufseilbahnen
CH526416A (de) * 1971-07-05 1972-08-15 Pohlig Heckel Bleichert Gerät zur selbsttätigen Überprüfung der Klemmwirkung der Klemmbacken von mit dem Zugseil gekuppelter Kleinkabinen umlaufender Seilbahnen
CH543990A (de) * 1971-10-19 1973-11-15 Staedeli Lift Ag Gondelbahn
IT967696B (it) * 1972-09-21 1974-03-11 Agudio Off Mec Apparecchio di sospensione per funicolari aeree continue mono fumi o bifuni con controllo di serraggio
DE2355317A1 (de) * 1973-11-06 1975-05-15 Pohlig Heckel Bleichert Klemmgeraet fuer eine einseil-umlaufbahn
FR2270134A1 (en) * 1974-05-09 1975-12-05 Laurent Roger Control device for cable car bogie cable clamp - relatively moves jaws along cable in relation to car weight

Also Published As

Publication number Publication date
FR2455537B1 (de) 1983-02-04
DE3061317D1 (en) 1983-01-20
ATE1982T1 (de) 1982-12-15
FR2455537A1 (fr) 1980-11-28
EP0018888A1 (de) 1980-11-12

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