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EP0771708A1 - Actuating and locking mechanism for weather protection hoods on chairlifts - Google Patents

Actuating and locking mechanism for weather protection hoods on chairlifts Download PDF

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Publication number
EP0771708A1
EP0771708A1 EP96810590A EP96810590A EP0771708A1 EP 0771708 A1 EP0771708 A1 EP 0771708A1 EP 96810590 A EP96810590 A EP 96810590A EP 96810590 A EP96810590 A EP 96810590A EP 0771708 A1 EP0771708 A1 EP 0771708A1
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EP
European Patent Office
Prior art keywords
weather protection
cable
hood
buffer
stroke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96810590A
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German (de)
French (fr)
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EP0771708B1 (en
Inventor
Kurt Switzeny
Hermann Kaltenbrunner
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.)
Garaventa Holding AG
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Garaventa Holding AG
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Filing date
Publication date
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Publication of EP0771708A1 publication Critical patent/EP0771708A1/en
Application granted granted Critical
Publication of EP0771708B1 publication Critical patent/EP0771708B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B61B12/002—Cabins; Ski-lift seats

Definitions

  • the invention relates to an actuating and locking mechanism for weather protection hoods of a chairlift cable car that can be coupled to a chairlift cable car with a pivotable articulated on the chair between a first and a second chair-fixed stop from a closed position to an open position pivotable weather protection hood, which by means of control rails or the like when bypassing the station track a cable or the like. Can be actuated and locks the swivel between the weather protection hood and the armchair in the closed position.
  • Detachable armchairs from recirculating chairlifts are increasingly being equipped with weather protection hoods that can be swiveled upwards to compensate for the load.
  • the weather protection hoods According to international regulations, for safety reasons the weather protection hoods must be closed and locked while driving when there is no passenger in the armchair.
  • the weather protection hoods are actuated by control cables in the station track when bypassing the holding stations; i.e. At the entrance to the station, all closed hoods are unlocked and opened first. Passengers boarding are sensed with light barriers to close and lock the open hood of unoccupied chairs before leaving the station. For the rest, it is up to the passengers traveling with them to leave the weather protection hood open after the station exit or to close it by hand and open it again before the next station entry;
  • the closed weather protection cover of the armchair occupied may of course not be locked.
  • a two-stroke is pivotally articulated at one end on the weather protection hood and at the other end on the armchair, that the cable acts on one of the two levers of the two-stroke, and that the two-stroke with manual actuation of the weather protection hood in the closed position has a pre-deadlock position on assumes the associated first stop and when the weather protection hood is actuated with the cable in the closed position, it is pulled against a third stop through its dead center position or is pushed away from it.
  • a two-stroke arrangement is arranged between the armchair and the weather protection hood which can be pivoted between two fixed stops, which can be pressed against the third stop by the cable pull due to its dead center position.
  • the hood actuation and locking mechanism according to the invention thus consists of a four-bar linkage with four low-friction pivots, which is kept movable between the three stops.
  • the weather protection hood is firmly attached to the one swing arm of the four-bar linkage.
  • the length of the two levers of the two-stroke mechanism is such that the two-stroke mechanism assumes a pre-dead position on the associated armchair-fixed stop when the weather protection hood is manually operated in the closed position.
  • the weather protection hood Since the weather protection hood is firmly connected to the swing arm of the four-bar linkage, it cannot push the two-stroke through its dead center position.
  • the cable engages directly on one of the two levers of the two-stroke arranged between the weather protection hood and the armchair, i.e. either on the coupling or on the other swing arm of the four-bar linkage, and is able to force the two-stroke against the third armchair with little effort due to its dead center position Pull stop to lock the hood.
  • a wind force acting on the weather protection hood can therefore no longer open it because it presses the two-stroke further against the third stop and it is not possible to break through the dead center position of the four-bar linkage when force is exerted by the weather protection hood.
  • the first two fixed stops are preferably elastically deformable as a rubber buffer. So the first stop can give a little when the two-stroke goes through the dead center position; in the locked over-center position, the two-stroke is biased against the third stop.
  • the third stop is preferably fixed to the chair, ie a lever-fixed stop part strikes an associated chair-fixed stop part; alternatively, a limit stop between the two movable levers for the over-center position is also possible.
  • the cable pull preferably engages the lever of the two-stroke mechanism near the hood, with a favorable lever action, expediently with an attack lever oriented approximately perpendicular to the dead center position.
  • an unlocking lever is provided in the invention, which is firmly connected to the lever of the double stroke, on which the cable pull also engages.
  • this unlocking lever which can only be reached from the outside, the weather protection hood can also be unlocked outside the holding stations, for example in an emergency, regardless of the cable pull.
  • the transmission angle on the extended levers is then 180 °.
  • a chair, designated overall by 1, of a chairlift cable car essentially consists of a hanging frame; such armchairs can, depending on their width, usually accommodate up to six people.
  • a weather protection hood 2 is pivoted upwards in a swivel joint designated 1-2.
  • a bracket 9 with armrests and footrests is also pivoted upwards on the hanging frame.
  • Weather protection hood 2 and bracket 9 are mounted with their balancing points balanced by means of spring balancers, so they can be comfortably handled by the passengers in the armchair.
  • the armchairs coupled to a conveyor cable by means of cable clamps are uncoupled from the conveyor cable at coupling points in the cable car's stopping stations and then recoupled while they are holding the station on a track track cf. Drive slowly around to get on and off passengers.
  • the chairs 1 In order to protect the chair 1, which is mostly passenger-free during the descent, from weather influences during the ski run, the chairs 1 have an automatic hood-bracket actuation with locking in the closed position for the onward journey, which at the stops of the station track at the entrance and Exit attached control rails 10 can be actuated via a cable 3. Passengers boarding or alighting can be sensed, for example, with light barriers in order to close and lock the weather protection hood 2 on vacant armchairs 1 before the station exit or to open the armchairs 1 entering the station with the weather protection hood 2 closed for passengers ready to board, the control rails 10 are driven and brought into their functional position.
  • the hood is usually operated via the roller lever-operated cable 3.
  • the actuating and locking mechanism for the weather protection hood 2 is identified as detail X in FIG. 1 and is first explained in more detail below with reference to FIG. 2 with the aid of schematic sketches in its kinematic mode of action: (In this respect, reference is made to, among other things, the definitions of the construction guidelines VDI 2127 " Fundamentals of transmission technology - Definitions of the transmissions” and VDI 2145 " Level four-layer transmissions with rotary and thrust joints - Explanations of the concept and systematics)
  • the hanging frame of the chair 1 is to be seen as a frame-fixed reference system.
  • the hood swivel is again identified with its pivot point 1-2; there the weather protection hood 2 is articulated as a rocker arm.
  • a two-stroke mechanism 4.5 is arranged, which consists of two levers 4 and 5 articulated to one another at the pivot point 4-5, one end at the pivot point 1-5 on the frame 1 and the other end at the pivot point 2-4 is articulated on the rocker 2.
  • Frame 1, swing arm 2 and the two levers 4 and 5 thus form an inevitable mechanism, which is a quadrangle 1-2-4-5 with four pivot joints 1-2, 2-4, 4-5 and 1-5.
  • One lever 4 of the two-stroke 4.5 is guided as a coupling of the quadrangle 1-2-4-5, the other lever 5 is a second rocker.
  • the cable of the cable pull acts on the coupling 4 at the pivot point 3-4; the force acting thereby on the coupling 4 is shown schematically by the arrow S.
  • the weather protection hood can also be opened or closed by hand; the torque thus introduced on the swing hinge 1-2 into the quadrilateral 1-2-4-5 is shown schematically with the arrow H arrow.
  • Fig. 2-III shows the end position of the quadrilateral 1-2-4-5 on the associated chair-fixed stop when the weather protection hood is closed by hand:
  • the two-stroke 4.5 is dimensioned so that it is in this position just before its dead center position T, which is the extended position between the two levers 4 and 5.
  • the rocker 2 is therefore just before its reversal position; consequently, a torque introduced at the swing joint 1-2 is no longer able to push the two-stroke 4.5 through its dead center position T, because the transmission angle at the pivot point 4-5 between the two levers 4 and 5 is almost 180 ° in this end position and no torque can be transmitted via the swivel joint 2-4 between rocker arm 2 and coupling 4.
  • the locked weather protection cover can only be unlocked with the cable;
  • the unlocked weather protection hood can be opened both by hand and with the cable.
  • the end position of the quadrilateral 1-2-3-4 that results when opening the associated (not shown) armchair-fixed stop is shown in Fig. 2-V.
  • the rope force S introduced in the coupling point 3-4 or the torque H introduced in the swing joint 1-2 reverse their direction of action during the closing or opening movement.
  • FIG. 3 to 5 show a preferred constructive embodiment of the hood actuation and locking mechanism according to detail X in FIG. 1 in its three stop-limited end positions corresponding to the schematic sketches III to V of FIG. 2 with the associated three chair-fixed stops:
  • the lower rear corner of the weather protection hood 2 is accommodated in the swivel joint 1-2 fixed to the chair.
  • the hood 2 is pivotable between two chair-fixed rubber buffers 6 1 and 7 1 from its closed position according to FIGS. 3 or 4, in which the hood-fixed stop part 6 2 rests against the chair-fixed stop part 6 1 , into its open position according to FIG. 5, in which the hood-fixed stop part 7 2 rests against the chair-fixed stop part 7 1 .
  • FIG. 3 shows the pre-dead center position of the two-stroke 4, 5 with the weather protection hood 2 closed by hand.
  • FIG. 4 shows the locked over-dead center position, which can only be assumed when the cable 3 is actuated.
  • the cable of the cable pull 3 engages the lever 4 with a favorable lever transmission, that is to say with a lever 2-4 - 3-4 oriented approximately perpendicular to the dead center position T at the pivot point 3-4.
  • the third stop 8 consists of a lever-fixed stop part 8 4 , which strikes the chair-fixed stop part 8 1 ; the first stop 6 remains in engagement and secures the locked position on the third stop 8 with a certain elastic deformation.
  • the lever 2-4 - 3-4 for the cable 3 acting on the lever 4 at the fulcrum 3-4 is further extended and passes into an unlocking lever 4 'with which the weather protection hood 2 can be unlocked independently of the cable 3;
  • the mechanism 1-2-4-5 can also be unlocked by hand if the chair is outside the stop stations on the conveyor line.
  • This unlocking lever 4 ' can only be reached from the outside and can push the two-stroke 4, 5 in the same way as the cable 3 through its dead center position, because it is firmly connected to the same lever 4.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The actuation mechanism is for the hood over the chair of a ski-lift. It incorporates a double lever (4,5) which is rotatably linked at one end to the weather protection hood (2) and at the other end to the chair (1). The cable (3) engages one of the two levers of the double lever. The double lever takes up a position at the first stop or buffer (6) on the hand actuation of the hood. When it is actuated by the cable it is pressed against a third stop (8).

Description

Die Erfindung betrifft einen Betätigungs- und Verriegelungsmechanismus für Wetterschutzhauben kuppelbarer Sessel einer Sessellift-Umlaufseilbahn mit drehbeweglich am Sessel angelenkter, zwischen einem ersten und einem zweiten sesselfesten Anschlag aus einer Geschlossenstellung in eine Offenstellung verschwenkbarer Wetterschutzhaube, der beim Umfahren des Stationsgleises von Steuerschienen oder dgl. mittels eines Seilzugs oder dgl. betätigbar ist und das Drehgelenk zwischen der Wetterschutzhaube und dem Sessel in der Geschlossenstellung verriegelt.The invention relates to an actuating and locking mechanism for weather protection hoods of a chairlift cable car that can be coupled to a chairlift cable car with a pivotable articulated on the chair between a first and a second chair-fixed stop from a closed position to an open position pivotable weather protection hood, which by means of control rails or the like when bypassing the station track a cable or the like. Can be actuated and locks the swivel between the weather protection hood and the armchair in the closed position.

Kuppelbare Sessel von Umlauf-Sesselliften werden heute zunehmend mit Wetterschutzhauben ausgerüstet, die sich, hinten am Sessel drehbar angelenkt, lastausgeglichen nach oben wegschwenken lassen. Nach internationalen Vorschriften müssen die Wetterschutzhauben aus Sicherheitsgründen während der Fahrt geschlossen und verriegelt sein, wenn sich kein Fahrgast im Sessel befindet. Hierzu werden die Wetterschutzhauben beim Umfahren der Haltestationen von Steuerschienen im Stationsgleis über Seilzüge betätigt; d.h. an der Stationseinfahrt werden alle geschlossenen Hauben zunächst entriegelt und geöffnet, das Einsteigen von Fahrgästen wird mit Lichtschranken sensiert, um die offene Haube unbesetzter Sessel vor der Stationsausfahrt wieder zu schließen und zu verriegeln. Im übrigen bleibt es den mitfahrenden Fahrgästen überlassen, die Wetterschutzhaube nach der Stationsausfahrt offenstehen zu lassen oder von Hand zu schließen und vor der nächsten Stationseinfahrt wieder zu öffnen; die geschlossene Wetterschutzhaube besetzter Sessel darf selbstverständlich nicht verriegelt sein.Detachable armchairs from recirculating chairlifts are increasingly being equipped with weather protection hoods that can be swiveled upwards to compensate for the load. According to international regulations, for safety reasons the weather protection hoods must be closed and locked while driving when there is no passenger in the armchair. For this purpose, the weather protection hoods are actuated by control cables in the station track when bypassing the holding stations; i.e. At the entrance to the station, all closed hoods are unlocked and opened first. Passengers boarding are sensed with light barriers to close and lock the open hood of unoccupied chairs before leaving the station. For the rest, it is up to the passengers traveling with them to leave the weather protection hood open after the station exit or to close it by hand and open it again before the next station entry; The closed weather protection cover of the armchair occupied may of course not be locked.

Ein Haubenbetätigungs- und -verriegelungsmechanismus mit den eingangs genannten Merkmalen geht aus der nicht vorveröffentlichten Österr. Patentanm. mit dem amtl. Az. 8A 2446 vom 03.12.93 der Anmelderin hervor. Dort greift ein am Seilzug angelenkter und am Sessel verschwenkbarer Betätigungshebel zum Verriegeln des Haubendrehgelenks in eine kurvenförmige Rast an einem ebenfalls am Sessel anschlagbegrenzt drehbar gelagerten Schwenkriegel ein. Bei dieser vorbekannten Lösung gab es bei der Verriegelung wegen der beim formschlüssigen Eingriff der beiden Verriegelungsteile auftretenden Reibung vereinzelt Probleme, derart daß einzelne Sessel manchmal unverriegelt ausgefahren sind.A hood actuation and locking mechanism with the features mentioned is based on the unpublished Austria. Patent application with the official Az. 8A 2446 from 03.12.93 of the applicant. There, an actuating lever articulated on the cable pull and pivotable on the armchair for locking the hood swivel joint engages in a curved catch on a swivel bolt that is also rotatably mounted on the armchair with limited stops. In this known solution, there were isolated problems with the locking because of the friction occurring during the positive engagement of the two locking parts, such that individual armchairs are sometimes extended unlocked.

Es soll daher die Aufgabe gelöst werden, eine mit möglichst geringer Betätigungskraft ansteuerbare, d.h. also reibungsarme Verriegelung bei einem derartigen Haubenbetätigungs- und -verriegelungsmechanismus zu schaffen.It is therefore intended to solve the problem of controlling an actuating force that is as low as possible, i.e. So to create low-friction locking in such a hood actuation and locking mechanism.

Diese Aufgabe wird erfindungsgemäß mit den Merkmalen gelöst, daß ein Zweischlag einenends an der Wetterschutzhaube und anderenends am Sessel drehbeweglich angelenkt ist, daß der Seilzug an einem der beiden Hebel des Zweischlags angreift, und daß der Zweischlag bei Handbetätigung der Wetterschutzhaube in der Geschlossenstellung eine Vortotpunktlage am zugehörigen ersten Anschlag einnimmt und bei Betätigung der Wetterschutzhaube mit dem Seilzug in der Geschlossenstellung gegen einen dritten Anschlag durch seine Totpunktlage gezogen bzw. von ihm weggedrückt wird.This object is achieved with the features that a two-stroke is pivotally articulated at one end on the weather protection hood and at the other end on the armchair, that the cable acts on one of the two levers of the two-stroke, and that the two-stroke with manual actuation of the weather protection hood in the closed position has a pre-deadlock position on assumes the associated first stop and when the weather protection hood is actuated with the cable in the closed position, it is pulled against a third stop through its dead center position or is pushed away from it.

Bei der Erfindung ist zwischen dem Sessel und der zwischen zwei sesselfesten Anschlägen verschwenkbaren Wetterschutzhaube ein Zweischlag angeordnet, der mit dem Seilzug durch seine Totpunktlage gegen den dritten Anschlag drückbar ist. Der erfindungsgemäße Haubenbetätigungs- und -verriegelungsmechanismus besteht also aus einem Gelenkviereck mit vier reibungsarmen Drehgelenken, das zwischen den drei Anschlägen begrenzt beweglich gehalten ist. Die Wetterschutzhaube befindet sich fest an der einen Schwinge des Gelenkvierecks. Die beiden Hebel des Zweischlags sind in ihrer Länge so bemessen, daß der Zweischlag bei Handbetätigung der Wetterschutzhaube in der Geschlossenstellung eine Vortotpunktlage am zugehörigen sesselfesten Anschlag einnimmt. Da die Wetterschutzhaube fest mit der Schwinge des Gelenkvierecksverbunden ist, kann sie den Zweischlag nicht durch seine Totpunktlage drücken. Der Seilzug greift dagegen direkt an einem der beiden Hebel des zwischen Wetterschutzhaube und Sessel angeordneten Zweischlags an, also entweder an der Koppel oder an der anderen Schwinge des Gelenkvierecks, und ist mit geringem Kraftaufwand in der Lage, den Zweischlag durch seine Totpunktlage gegen den dritten sesselfesten Anschlag zu ziehen, um die Haube zu verriegeln. Eine auf die Wetterschutzhaube einwirkende Windkraft kann sie daher nicht mehr öffnen, weil sie den Zweischlag weiter gegen den dritten Anschlag drückt und ein Durchschlagen der Totpunktlage des Gelenkvierecks bei Krafteinwirkung von der Wetterschutzhaube her nicht möglich ist.In the invention, a two-stroke arrangement is arranged between the armchair and the weather protection hood which can be pivoted between two fixed stops, which can be pressed against the third stop by the cable pull due to its dead center position. The hood actuation and locking mechanism according to the invention thus consists of a four-bar linkage with four low-friction pivots, which is kept movable between the three stops. The weather protection hood is firmly attached to the one swing arm of the four-bar linkage. The length of the two levers of the two-stroke mechanism is such that the two-stroke mechanism assumes a pre-dead position on the associated armchair-fixed stop when the weather protection hood is manually operated in the closed position. Since the weather protection hood is firmly connected to the swing arm of the four-bar linkage, it cannot push the two-stroke through its dead center position. The cable, on the other hand, engages directly on one of the two levers of the two-stroke arranged between the weather protection hood and the armchair, i.e. either on the coupling or on the other swing arm of the four-bar linkage, and is able to force the two-stroke against the third armchair with little effort due to its dead center position Pull stop to lock the hood. A wind force acting on the weather protection hood can therefore no longer open it because it presses the two-stroke further against the third stop and it is not possible to break through the dead center position of the four-bar linkage when force is exerted by the weather protection hood.

Die beiden ersten sesselfesten Anschläge sind vorzugsweise elastisch verformbar als Gummipuffer ausgeführt. So kann der erste Anschlag ein wenig nachgeben, wenn der Zweischlag durch die Totpunktlage geht; in der verriegelten Übertotpunktlage wird der Zweischlag gegen den dritten Anschlag vorgespannt. Der dritte Anschlag ist vorzugsweise sesselfest, d.h. ein hebelfestes Anschlagteil schlägt an einem zugehörigen sesselfesten Anschlagteil an; alternativ kommt auch eine Anschlagbegrenzung zwischen den beiden beweglichen Hebeln für die Übertotpunktlage in Frage.The first two fixed stops are preferably elastically deformable as a rubber buffer. So the first stop can give a little when the two-stroke goes through the dead center position; in the locked over-center position, the two-stroke is biased against the third stop. The third stop is preferably fixed to the chair, ie a lever-fixed stop part strikes an associated chair-fixed stop part; alternatively, a limit stop between the two movable levers for the over-center position is also possible.

Vorzugsweise greift der Seilzug unter günstiger Hebeleinwirkung am haubennahen Hebel des Zweischlags an, zweckmäßig mit einem etwa senkrecht zur Totpunktlage ausgerichteten Angriffshebel.The cable pull preferably engages the lever of the two-stroke mechanism near the hood, with a favorable lever action, expediently with an attack lever oriented approximately perpendicular to the dead center position.

Weiter ist bei der Erfindung ein Entriegelungshebel vorgesehen, der mit dem Hebel des Zweischlags fest verbunden ist, an dem auch der Seilzug angreift. Mit diesem, nur von außen erreichbaren Entriegelungshebel läßt sich die Wetterschutzhaube bspw. in einem Noffall unabhängig vom Seilzug auch außerhalb der Haltestationen entriegeln.Furthermore, an unlocking lever is provided in the invention, which is firmly connected to the lever of the double stroke, on which the cable pull also engages. With this unlocking lever, which can only be reached from the outside, the weather protection hood can also be unlocked outside the holding stations, for example in an emergency, regardless of the cable pull.

Erfindungsgemäß ist die Totpunktlage die Strecklage zwischen den beiden Hebeln des Zweischlags, der Übertragungswinkel an den gestreckten Hebeln beträgt dann 180°.According to the dead center position is the extended position between the two levers of the two-stroke, the transmission angle on the extended levers is then 180 °.

Dieselbe Wirkung ist aber grundsätzlich auch in der Decklage der beiden Hebel gegeben, in der der Übertragungswinkel 0° beträgt; auch in dieser Vortotpunktlage steht die als Schwinge des Gelenkvierecks am Sessel angelenkte Wetterschutzhaube kurz vor ihrer Bewegungsumkehr und kann den Zweischlag nicht durch seine Totpunktlage drücken.In principle, however, the same effect also exists in the top position of the two levers, in which the transmission angle is 0 °; Even in this pre-dead center position, the weather protection hood articulated on the armchair as the swing arm of the four-bar linkage is about to reverse its movement and cannot push the two-stroke through its dead center position.

Ein bevorzugtes Ausführungsbeispiel nach der Erfindung wird nachstehend unter Bezugnahme auf die Zeichnung näher erläutert:

Fig.1
zeigt einen einzelnen Sessel einer Sessellift-Umlaufseilbahn mit geschlossener Wetterschutzhaube in einer Seitenansicht. In
Fig.2
ist der Haubenbetätigungs- und -verriegelungsmechanismus in seinen drei von sesselfesten Anschlägen gesicherten Endstellungen (Fig.2-lll bis V) in kinematischen Schemadarstellungen gezeigt.
Fig.3
zeigt die unverriegelte Geschlossenstellung bei der Handbetätigung der Wetterschutzhaube gemäß Schemadarstellung in Fig.2-lll.
Fig.4
zeigt die verriegelte Geschlossenstellung bei der Seilzugbetätigung der Wetterschutzhaube gemäß Schemadarstellung in Fig.2-lV.
Fig.5
zeigt die Offenstellung der Wetterschutzhaube bei Hand- oder Seilzugbetätigung gemäß Schemadarstellung in Fig.2-V.
A preferred embodiment according to the invention is explained in more detail below with reference to the drawing:
Fig. 1
shows a single chair of a chairlift cable car with a closed weather protection cover in a side view. In
Fig. 2
the hood actuation and locking mechanism is shown in its three end positions secured by armchair-fixed stops (FIGS. 2-11 to V) in kinematic schematic representations.
Fig. 3
shows the unlocked closed position during manual operation of the weather protection hood according to the diagram in Fig. 2-lll.
Fig. 4
shows the locked closed position when pulling the weather protection hood according to the diagram in Fig.2-IV.
Fig. 5
shows the open position of the weather protection hood with manual or cable pull operation according to the schematic representation in Fig. 2-V.

Nach Fig.1 besteht ein insgesamt mit 1 bezeichneter Sessel einer Sessellift-Umlaufseilbahn im wesentlichen aus einem Gehängerahmen; solche Sessel können, je nach ihrer Breite, üblicherweise bis zu sechs Personen aufnehmen. Am Gehängerahmen ist hinter der Sitzbank eine Wetterschutzhaube 2 in einem mit 1-2 bezeichneten Drehgelenk nach oben wegschwenkbar angelenkt. Weiter ist am Gehängerahmen ein Bügel 9 mit Armlehnen und Fußstützen ebenfalls nach oben wegschwenkbar angelenkt. Wetterschutzhaube 2 und Bügel 9 sind bezüglich ihrer Drehpunkte mittels Federzügen gewichtsausgeglichen gelagert, lassen sich also von den im Sessel befindlichen Fahrgästen bequem handhaben. Die an ein Förderseil mittels Seilklemmen angekuppelten Sessel werden an Kuppelstellen in den Haltestationen der Seilbahn vom Förderseil ab- und dann wieder angekuppelt, währenddem sie die Haltestation auf einer Gleisspur vglw. langsam zum Aus- bzw. Einsteigen von Fahrgästen umfahren.According to FIG. 1, a chair, designated overall by 1, of a chairlift cable car essentially consists of a hanging frame; such armchairs can, depending on their width, usually accommodate up to six people. On the hanging frame behind the seat a weather protection hood 2 is pivoted upwards in a swivel joint designated 1-2. Furthermore, a bracket 9 with armrests and footrests is also pivoted upwards on the hanging frame. Weather protection hood 2 and bracket 9 are mounted with their balancing points balanced by means of spring balancers, so they can be comfortably handled by the passengers in the armchair. The armchairs coupled to a conveyor cable by means of cable clamps are uncoupled from the conveyor cable at coupling points in the cable car's stopping stations and then recoupled while they are holding the station on a track track cf. Drive slowly around to get on and off passengers.

Um auch die während des Skibetriebs überwiegend bei der Talfahrt fahrgastlosen Sessel 1 vor Wettereinflüssen zu schützen, haben die Sessel 1 eine automatische Hauben-Bügel-Betätigung mit Verriegelung in der Geschlossenstellung für die Weiterfahrt, die an den Haltestationen von im Stationsgleis an der Ein- und Ausfahrt angebrachten Steuerschienen 10 über einen Seilzug 3 betätigbar ist. Das Ein- oder Aussteigen von Fahrgästen läßt sich bspw. mit Lichtschranken sensieren, um an unbesetzten Sesseln 1 die Wetterschutzhaube 2 vor der Stationsausfahrt wieder zu schließen und zu verriegeln bzw. an der Stationseinfahrt die mit geschlossener Wetterschutzhaube 2 einfahrenden Sessel 1 für einstiegbereite Fahrgäste aufzumachen, werden die Steuerschienen 10 angesteuert und in ihre Funktionsstellung gebracht. Die Haubenbetätigung erfolgt üblicherweise über den rollenhebelbetätigten Seilzug 3.In order to protect the chair 1, which is mostly passenger-free during the descent, from weather influences during the ski run, the chairs 1 have an automatic hood-bracket actuation with locking in the closed position for the onward journey, which at the stops of the station track at the entrance and Exit attached control rails 10 can be actuated via a cable 3. Passengers boarding or alighting can be sensed, for example, with light barriers in order to close and lock the weather protection hood 2 on vacant armchairs 1 before the station exit or to open the armchairs 1 entering the station with the weather protection hood 2 closed for passengers ready to board, the control rails 10 are driven and brought into their functional position. The hood is usually operated via the roller lever-operated cable 3.

Der Betätigungs- und Verriegelungsmechanismus für die Wetterschutzhaube 2 ist in Fig.1 als Einzelheit X gekennzeichnet und wird nachstehend unter Bezugnahme auf Fig.2 anhand schematischer Skizzen zunächst in seiner kinematischen Wirkungsweise näher erläuert:
(Insoweit wird u.a. auf die Begriffsbestimmungen der Konstruktionsrichtlinien VDI 2127 "Getriebetechnische Grundlagen - Begriffsbestimmungen der Getriebe" und VDI 2145 "Ebene vierglierige Getriebe mit Dreh- und Schubgelenken - Begriffserklärungen und Systematik" verwiesen)The actuating and locking mechanism for the weather protection hood 2 is identified as detail X in FIG. 1 and is first explained in more detail below with reference to FIG. 2 with the aid of schematic sketches in its kinematic mode of action:
(In this respect, reference is made to, among other things, the definitions of the construction guidelines VDI 2127 " Fundamentals of transmission technology - Definitions of the transmissions" and VDI 2145 " Level four-layer transmissions with rotary and thrust joints - Explanations of the concept and systematics")

In den kinematischen Schemadarstellungen der Fig.2 ist der Gehängerahmen des Sessels 1 als gestellfestes Bezugssystem anzusehen. Das Haubendrehgelenk ist wieder mit seinem Drehpunkt 1-2 bezeichnet; dort ist die Wetterschutzhaube 2 gestellfest als Schwinge angelenkt. Weiter ist zwischen der Schwinge 2 und dem Gestell 1 ein Zweischlag 4,5 angeordnet, der aus zwei im Drehpunkt 4-5 gelenkig miteinander verbundenen Hebeln 4 und 5 besteht, einenends im Drehpunkt 1-5 am Gestell 1 und anderenends im Drehpunkt 2-4 an der Schwinge 2 angelenkt ist. Gestell 1, Schwinge 2 und die beiden Hebel 4 und 5 bilden also einen zwangläufigen Mechanismus, der ein Gelenkviereck 1-2-4-5 mit vier Drehgelenken 1-2, 2-4, 4-5 und 1-5 ist. Der eine Hebel 4 des Zweischlags 4,5 ist als Koppel des Gelenkvierecks 1-2-4-5 geführt, der andere Hebel 5 ist eine zweite Schwinge.In the kinematic diagrams of Figure 2, the hanging frame of the chair 1 is to be seen as a frame-fixed reference system. The hood swivel is again identified with its pivot point 1-2; there the weather protection hood 2 is articulated as a rocker arm. Furthermore, between the rocker 2 and the frame 1, a two-stroke mechanism 4.5 is arranged, which consists of two levers 4 and 5 articulated to one another at the pivot point 4-5, one end at the pivot point 1-5 on the frame 1 and the other end at the pivot point 2-4 is articulated on the rocker 2. Frame 1, swing arm 2 and the two levers 4 and 5 thus form an inevitable mechanism, which is a quadrangle 1-2-4-5 with four pivot joints 1-2, 2-4, 4-5 and 1-5. One lever 4 of the two-stroke 4.5 is guided as a coupling of the quadrangle 1-2-4-5, the other lever 5 is a second rocker.

An der Koppel 4 greift das Seil des Seilzugs im Drehpunkt 3-4 an; die hierdurch auf die Koppel 4 einwirkende Kraft ist mit dem Pfeil S schematisch dargestellt. Weiter ist die Wetterschutzhaube von Hand öffen- bzw. schließbar; das hierdurch am Schwingendrehgelenk 1-2 in das Gelenkviereck 1-2-4-5 eingeleitete Drehmoment ist mit dem Bogenpfeil H schematisch dargestellt.The cable of the cable pull acts on the coupling 4 at the pivot point 3-4; the force acting thereby on the coupling 4 is shown schematically by the arrow S. The weather protection hood can also be opened or closed by hand; the torque thus introduced on the swing hinge 1-2 into the quadrilateral 1-2-4-5 is shown schematically with the arrow H arrow.

In den einzelnen Darstellungen III, IV und V der Fig.2 sind die drei möglichen Endstellungen des Gelenkvierecks 1-2-3-4 gezeigt, die durch drei, in den schematischen Skizzen nicht dargestellte, sesselfeste Anschläge begrenzt sind und sich je nachdem ergeben, welche Antriebsbewegung S bzw. H in das Gelenkviereck 1-2-4-5 eingeleitet wird.In the individual representations III, IV and V of FIG. 2, the three possible end positions of the quadrilateral 1-2-3-4 are shown, which are limited by three, not shown in the schematic sketches, fixed stops and which result depending on which drive movement S or H is initiated in the quadrilateral 1-2-4-5.

In Fig.2-III ist die Endstellung des Gelenkvierecks 1-2-4-5 am zugehörigen sesselfesten Anschlag beim Schließen der Wetterschutzhaube von Hand gezeigt:
   Der Zweischlag 4,5 ist so bemessen, daß er sich in dieser Stellung kurz vor seiner Totpunktlage T befindet, die die Strecklage zwischen den beiden Hebeln 4 und 5 ist. Die Schwinge 2 befindet sich also kurz vor ihrer Umkehrlage; folglich ist ein am Schwingendrehgelenk 1-2 eingeleitetes Drehmoment nicht mehr in der Lage, den Zweischlag 4,5 durch seine Totpunktlage T zu drücken, denn der Übertragungswinkel am Drehpunkt 4-5 zwischen den beiden Hebeln 4 und 5 beträgt in dieser Endstellung nahezu 180° und über das Drehgelenk 2-4 zwischen Schwinge 2 und Koppel 4 ist kein Drehmoment übertragbar.Fig. 2-III shows the end position of the quadrilateral 1-2-4-5 on the associated chair-fixed stop when the weather protection hood is closed by hand:
The two-stroke 4.5 is dimensioned so that it is in this position just before its dead center position T, which is the extended position between the two levers 4 and 5. The rocker 2 is therefore just before its reversal position; consequently, a torque introduced at the swing joint 1-2 is no longer able to push the two-stroke 4.5 through its dead center position T, because the transmission angle at the pivot point 4-5 between the two levers 4 and 5 is almost 180 ° in this end position and no torque can be transmitted via the swivel joint 2-4 between rocker arm 2 and coupling 4.

Anders ist dies, wenn die Wetterschutzhaube gemäß Fig.2-IV mit dem Seilzug geschlossen wird:
   Der im Drehpunkt 3-4 an der Koppel 4 mit der Seilkraft S angreifende Seilzug überträgt ein dem Hebel 3-4 - 2-4 entsprechendes Drehmoment über das koppelfeste Drehgelenk 2-4, wodurch der Zweischlag 4,5 durch seine Totpunktlage gegen einen weiteren (nicht dargestellten) gestellfesten Anschlag in eine verriegelte Lage gedrückt wird, aus der er nur mit Seilkraft S wieder lösbar ist; denn ein (bspw. durch auf die Wetterschutzhaube einwirkende Windkräfte) am Schwingendrehgelenk 1-2 in das Gelenkviereck 1-2-3-4 eingeleitetes Drehmoment drückt den Zweischlag 4,5 weiter gegen seinen sesselfesten Anschlag.This is different if the weather protection hood is closed with the cable as shown in Fig. 2-IV:
The cable pulling on the coupling 4 at the pivot point 3-4 with the cable force S transmits a torque corresponding to the lever 3-4 - 2-4 via the coupling-fixed swivel joint 2-4, whereby the two-stroke 4.5 due to its dead center position against another ( (not shown) frame-fixed stop is pressed into a locked position, from which it can only be released with rope force S; because a torque (e.g. caused by wind forces acting on the weather protection hood) on the swing arm 1-2 in the quadrilateral 1-2-3-4 presses the two-stroke 4.5 further against its chair-fixed stop.

Die verriegelte Wetterschutzhaube läßt sich also nur mehr mit dem Seilzug entriegeln; das Öffnen der entriegelten Wetterschutzhaube ist sowohl von Hand als auch mit dem Seilzug möglich. Die sich beim Öffnen am zugehörigen (nicht dargestellten) sesselfesten Anschlag ergebende Endstellung des Gelenkvierecks 1-2-3-4 ist in Fig.2-V dargestellt. Die im Koppelpunkt 3-4 eingeleitete Seilkraft S bzw. das im Schwingendrehgelenk 1-2 eingeleitete Drehmoment H kehren bei der Schließ- bzw. Öffnungsbewegung jeweils ihre Wirkrichtung um.The locked weather protection cover can only be unlocked with the cable; The unlocked weather protection hood can be opened both by hand and with the cable. The end position of the quadrilateral 1-2-3-4 that results when opening the associated (not shown) armchair-fixed stop is shown in Fig. 2-V. The rope force S introduced in the coupling point 3-4 or the torque H introduced in the swing joint 1-2 reverse their direction of action during the closing or opening movement.

In den Fig.3 bis 5 ist eine bevorzugte konstruktive Ausführungsform des Haubenbetätigungs- und -verriegelungsmechanismus gemäß Einzelheit X in Fig.1 in ihren drei anschlagbegrenzten Endstellungen entsprechend den schematischen Skizzen III bis V der Fig.2 mit den zugehörigen drei sesselfesten Anschlägen gezeigt:
   Die untere hintere Ecke der Wetterschutzhaube 2 ist im sesselfesten Drehgelenk 1-2 aufgenommen. Die Haube 2 ist zwischen zwei sesselfesten Gummipuffern 61 und 71 aus ihrer Geschlossenstellung gemäß den Fig. 3 oder 4, in der das haubenfeste Anschlagteil 62 am sesselfesten Anschlagteil 61 anliegt, in ihre Offenstellung gemäß Fig.5 verschwenkbar, in der das haubenfeste Anschlagteil 72 am sesselfesten Anschlagteil 71 anliegt. Fig.3 zeigt die Vortotpunktlage des Zweischlags 4,5 bei von Hand geschlossener Wetterschutzhaube 2. In Fig. 4 ist die verriegelte Übertotpunktlage dargestellt, die nur bei Betätigung mit dem Seilzug 3 einnehmbar ist. Hierzu greift das Seil des Seilzugs 3 mit günstiger Hebelübersetzung, also mit einem etwa senkrecht zur Totpunktlage T ausgerichteten Hebel 2-4 - 3-4 im Drehpunkt 3-4 am Hebel 4 an. In dieser verriegelten Endlage besteht der dritte Anschlag 8 aus einem hebelfesten Anschlagteil 84, das am sesselfesten Anschlagteil 81 anschlägt; der erste Anschlag 6 bleibt im Eingriff und sichert unter gewisser elastischer Verformung die verriegelte Lage am dritten Anschlag 8.3 to 5 show a preferred constructive embodiment of the hood actuation and locking mechanism according to detail X in FIG. 1 in its three stop-limited end positions corresponding to the schematic sketches III to V of FIG. 2 with the associated three chair-fixed stops:
The lower rear corner of the weather protection hood 2 is accommodated in the swivel joint 1-2 fixed to the chair. The hood 2 is pivotable between two chair-fixed rubber buffers 6 1 and 7 1 from its closed position according to FIGS. 3 or 4, in which the hood-fixed stop part 6 2 rests against the chair-fixed stop part 6 1 , into its open position according to FIG. 5, in which the hood-fixed stop part 7 2 rests against the chair-fixed stop part 7 1 . FIG. 3 shows the pre-dead center position of the two-stroke 4, 5 with the weather protection hood 2 closed by hand. FIG. 4 shows the locked over-dead center position, which can only be assumed when the cable 3 is actuated. For this purpose, the cable of the cable pull 3 engages the lever 4 with a favorable lever transmission, that is to say with a lever 2-4 - 3-4 oriented approximately perpendicular to the dead center position T at the pivot point 3-4. In this locked end position, the third stop 8 consists of a lever-fixed stop part 8 4 , which strikes the chair-fixed stop part 8 1 ; the first stop 6 remains in engagement and secures the locked position on the third stop 8 with a certain elastic deformation.

Der Hebel 2-4 - 3-4 für den im Drehpunkt 3-4 am Hebel 4 angreifenden Seilzug 3 ist weiter verlängert und geht in einen Entriegelungshebel 4' über, mit dem die Wetterschutzhaube 2 unabhängig vom Seilzug 3 entriegelbar ist; bspw. in einem Noffall läßt sich der Mechanismus 1-2-4-5 auch dann von Hand entriegeln, wenn sich der Sessel außerhalb der Haltestationen auf der Förderstrecke befindet. Dieser Entriegelungshebel 4' ist nur von außen erreichbar und kann den Zweischlag 4,5 in gleicher Weise wie der Seilzug 3 durch seine Totpunktlage drücken, denn er ist mit demselben Hebel 4 fest verbunden.The lever 2-4 - 3-4 for the cable 3 acting on the lever 4 at the fulcrum 3-4 is further extended and passes into an unlocking lever 4 'with which the weather protection hood 2 can be unlocked independently of the cable 3; In an emergency, for example, the mechanism 1-2-4-5 can also be unlocked by hand if the chair is outside the stop stations on the conveyor line. This unlocking lever 4 'can only be reached from the outside and can push the two-stroke 4, 5 in the same way as the cable 3 through its dead center position, because it is firmly connected to the same lever 4.

Claims (4)

Betätigungs- und Verriegelungsmechanismus für Wetterschutzhauben (2) kuppelbarer Sessel (1) einer Sessellift-Umlaufseilbahn mit drehbeweglich (Drehgelenk 1-2) am Sessel (1) angelenkter, zwischen einem ersten (Puffer 6) und einem zweiten Anschlag (Puffer 7) aus einer Geschlossenstellung (am Puffer 6) in eine Offenstellung (am Puffer 7) verschwenkbarer Wetterschutzhaube (2), der beim Umfahren des Stationsgleises von Steuerschienen (10) oder dgl. mittels eines Seilzugs (3) oder dgl. betätigbar ist und das Drehgelenk (1-2) zwischen der Wetterschutzhaube (2) und dem Sessel (1) in der Geschlossenstellung (am Puffer 6) verriegelt, dadurch gekennzeichnet, daß ein Zweischlag (4,5) einenends an der Wetterschutzhaube (2) und anderenends am Sessel (1) drehbeweglich angelenkt ist, daß der Seilzug (3) an einem der beiden Hebel (4 oder 5) des Zweischlags (4,5) angreift, und daß der Zweischlag (4,5) bei Handbetätigung der Wetterschutzhaube (2) in der Geschlossenstellung (am Puffer 6) eine Vortotpunktlage am zugehörigen ersten Anschlag (Puffer 6) einnimmt und bei Betätigung der Wetterschutzhaube (2) mit dem Seilzug (3) in der Geschlossenstellung (am Puffer 6) gegen einen dritten Anschlag (8) durch seine Totpunktlage (T) gezogen bzw. von ihm weggedrückt wird. Actuation and locking mechanism for weather protection hoods (2) detachable armchair (1) of a chairlift cable car with a rotatable (swivel joint 1-2) attached to the armchair (1), between a first (buffer 6) and a second stop (buffer 7) from a closed position (on the buffer 6) weather protection hood (2) which can be pivoted into an open position (on buffer 7), which can be actuated when driving around the station track of control rails (10) or the like by means of a cable (3) or the like and the swivel joint (1-2) between the weather protection hood (2) and the armchair (1) in the closed position (on the buffer 6) locked, characterized, that a two-stroke (4, 5) is pivoted at one end on the weather protection hood (2) and at the other end on the armchair (1), that the cable (3) engages one of the two levers (4 or 5) of the two-stroke (4,5), and that the two-stroke (4,5) with manual operation of the weather protection hood (2) in the closed position (on buffer 6) assumes a pre-dead position on the associated first stop (buffer 6) and when the weather protection hood (2) is actuated with the cable (3) in the Closed position (on buffer 6) against a third stop (8) is pulled through its dead center position (T) or pushed away from it. Verriegelungsmechanismus nach Anspruch 1,
dadurch gekennzeichnet, daß der Seilzug (3) am haubennahen Hebel (4) des Zweischlags (4,5) angreift.Locking mechanism according to claim 1,
characterized in that the cable pull (3) engages the lever (4) of the double lay (4,5) near the hood. Verriegelungsmechanismus nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß ein Entriegelungshebel (4') mit dem Hebel (4) des Zweischlags (4,5) fest verbunden ist, an dem der Seilzug (3) angreift.Locking mechanism according to claim 1 or 2,
characterized in that an unlocking lever (4 ') is firmly connected to the lever (4) of the double lay (4,5) on which the cable pull (3) acts. Verriegelungsmechanismus nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß die Totpunktlage (T) die Strecklage zwischen den beiden Hebeln (4 und 5) des Zweischlags (4,5) ist.Locking mechanism according to one of claims 1 to 3,
characterized in that the dead center position (T) is the extended position between the two levers (4 and 5) of the two-stroke (4,5).
EP96810590A 1995-10-30 1996-09-09 Actuating and locking mechanism for weather protection hoods on chairlifts Expired - Lifetime EP0771708B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH3065/95 1995-10-30
CH306595 1995-10-30
CH306595 1995-10-30

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DE (1) DE59604994D1 (en)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
EP1671867A1 (en) * 2004-12-17 2006-06-21 Pomagalski S.A. Control system for the locking of a pivotable hood for a chair lift
EP2330010A1 (en) * 2009-10-06 2011-06-08 Pomagalski Seat for a ski-lift facility
EP2810841A1 (en) * 2013-06-06 2014-12-10 Bartholet Maschinenbau AG Drive operation device for a circular path and method for operating a circular path with such a drive operation device
WO2022008399A1 (en) * 2020-07-06 2022-01-13 Innova Patent Gmbh Door controller for a cable car vehicle

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US3556014A (en) * 1969-02-07 1971-01-19 Rudkin Wiley Corp Automatic opening and closing means for a ski lift chair
AT361538B (en) * 1979-07-26 1981-03-10 Swoboda Traunsteinwerkstaetten OPERATING DEVICE FOR THE FOLDING DOORS OF CABLE CARS AND THE LIKE
EP0510357A1 (en) * 1991-04-22 1992-10-28 KONRAD DOPPELMAYR & SOHN MASCHINENFABRIK GESELLSCHAFT M.B.H. & CO. KG. Automatic locking device for a weather protection cap of a chairlift or the door of a telpher carrier

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US3556014A (en) * 1969-02-07 1971-01-19 Rudkin Wiley Corp Automatic opening and closing means for a ski lift chair
AT361538B (en) * 1979-07-26 1981-03-10 Swoboda Traunsteinwerkstaetten OPERATING DEVICE FOR THE FOLDING DOORS OF CABLE CARS AND THE LIKE
EP0510357A1 (en) * 1991-04-22 1992-10-28 KONRAD DOPPELMAYR & SOHN MASCHINENFABRIK GESELLSCHAFT M.B.H. & CO. KG. Automatic locking device for a weather protection cap of a chairlift or the door of a telpher carrier

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1671867A1 (en) * 2004-12-17 2006-06-21 Pomagalski S.A. Control system for the locking of a pivotable hood for a chair lift
FR2879547A1 (en) * 2004-12-17 2006-06-23 Pomagalski Sa LOCKING CONTROL MECHANISM OF A SWIVEL HOOD FOR TELESIEGE
US7377220B2 (en) 2004-12-17 2008-05-27 Pomagalski Sa Operating mechanism with latching of a pivoting cover for a chair-lift
EP2330010A1 (en) * 2009-10-06 2011-06-08 Pomagalski Seat for a ski-lift facility
US8579379B2 (en) 2009-10-06 2013-11-12 Pomagalski Seat for a chair lift installation
EP2810841A1 (en) * 2013-06-06 2014-12-10 Bartholet Maschinenbau AG Drive operation device for a circular path and method for operating a circular path with such a drive operation device
WO2022008399A1 (en) * 2020-07-06 2022-01-13 Innova Patent Gmbh Door controller for a cable car vehicle
CN115768674A (en) * 2020-07-06 2023-03-07 创新专利有限公司 Door controller for cableway vehicle

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Publication number Publication date
ATE191890T1 (en) 2000-05-15
EP0771708B1 (en) 2000-04-19
DE59604994D1 (en) 2000-05-25

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