[go: up one dir, main page]

EP0150701B1 - Detachable grip - Google Patents

Detachable grip Download PDF

Info

Publication number
EP0150701B1
EP0150701B1 EP84890172A EP84890172A EP0150701B1 EP 0150701 B1 EP0150701 B1 EP 0150701B1 EP 84890172 A EP84890172 A EP 84890172A EP 84890172 A EP84890172 A EP 84890172A EP 0150701 B1 EP0150701 B1 EP 0150701B1
Authority
EP
European Patent Office
Prior art keywords
spring
test
compression spring
jaws
cable
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
EP84890172A
Other languages
German (de)
French (fr)
Other versions
EP0150701A1 (en
Inventor
Bernd Meindl
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.)
Doppelmayr Seilbahnen GmbH
Original Assignee
Konrad Doppelmayr and Sohn Maschinenfabrik GmbH and Co KG
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 Konrad Doppelmayr and Sohn Maschinenfabrik GmbH and Co KG filed Critical Konrad Doppelmayr and Sohn Maschinenfabrik GmbH and Co KG
Publication of EP0150701A1 publication Critical patent/EP0150701A1/en
Application granted granted Critical
Publication of EP0150701B1 publication Critical patent/EP0150701B1/en
Expired legal-status Critical Current

Links

Images

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 dome clamp for attaching means of transport to a movable rope, in particular for hangers of cable orbits, with at least one pair of jaws comprising the rope, wherein at least one jaw can be pressed onto the rope by at least one compression spring, or preferably by one of these pivotable and on a stationary rail lever can be lifted, and with a device that measures the deformation of at least one test spring when the jaws are clamped to the rope and, when a predetermined value is exceeded, triggers a signaling and / or stopping device.
  • the deformation of the test spring is a measure of the force of the compression spring causing the clamping. This force can decrease over time due to the aging of the compression spring or due to the breakage of individual elements of the compression spring as well as through the wear of the movable connections between the compression spring and the jaw.
  • a test device of another principle has become known for double clamps, i.e. for dome clamps with two pairs of jaws arranged one behind the other in the direction of the cable (DE-A-1 933 752), in which a test spring acts between the two pairs of jaws in such a way that it couples the two pairs of jaws tried to push apart in the direction of the rope. If this succeeds - which is the case if at least one of the pairs of jaws slips under the action of the test spring - then an alarm device is triggered via a toggle lever connecting the two pairs of jaws. With this test device, the clamping force of the compression spring is not measured directly.
  • the disadvantage of this test device is that it can only be used with double clamps, but not with dome clamps with only one pair of clamping jaws and that the individual pairs of clamping jaws are constantly loaded in the cable direction by the test spring.
  • the object of the invention is to provide a dome clamp with a test device for the clamping force, through which the clamping force of the compression spring is checked when jaws are clamped, regardless of the movements of the hanger and regardless of its speed, and which can also be used with dome clamps and only a pair of clamping jaws is.
  • At least one test spring is arranged and dimensioned in each clamp such that it compresses the compression spring as soon as the spring force of the compression spring falls below a predetermined value when the jaws are closed.
  • the test device is therefore integrated in the clamping device. This moves the test elements close to the jaws and largely eliminates static and dynamic transmission errors.
  • the test device reacts as soon as the clamping force of the compression spring decreases by a predetermined amount and measures the clamping force when the jaws are clamped, that is to say in the state which is decisive for the safety of the clamping device.
  • the hanger of the lift has at its upper end a pipe section 2 which is rotatably mounted about an axis 3 in order to enable pendulum movements in the direction of travel.
  • a pipe section 2 which is rotatably mounted about an axis 3 in order to enable pendulum movements in the direction of travel.
  • a roller 4 which is mounted at the free end of the axle 3 and which runs in a guide 5 attached in the station.
  • the axis 3 is inserted in a terminal box, which consists of a U-shaped part 6 and two end plates 7 and 8. At 9, a role of the running gear and the corresponding travel rail are indicated, with which this is supported when the chair is released from the rope.
  • the fixed clamping jaw 10 is fastened to an extension of the terminal box.
  • the movable clamping jaw 11 is rotatably mounted about a bolt 12. At its end facing the terminal box, it is articulated by means of a bolt 13 to an obliquely arranged pressure piece 14, which in turn is connected by means of a bolt 15 to a rod 16 which is mounted in the terminal box so as to be longitudinally displaceable.
  • a plate spring assembly 18 At a shoulder 17 of this rod is a plate spring assembly 18, which tries to push the rod 16 in the direction of the jaws, so that the movable jaw 11 is pressed against the cable 19 via the pressure piece 14.
  • the geometry and the spring force are chosen so that there is approximately three times the security against slipping under the most unfavorable conditions.
  • the rod 16 is moved against the force of the spring assembly 18. This is done by means of a rotatably mounted lever 20 which is connected at one end to the rod 16 by a tab 21 and at its other end carries a roller 22 which runs onto a rail, not shown, in the station.
  • the compression springs 18 and the test springs 24 are accordingly supported together on an abutment which is formed by the sleeve 23.
  • the total force of these test springs 24 is chosen so that it is slightly less than that of the spring assembly 18 when the lower tolerance limit of the spring force is reached. If the force of the spring assembly 18 is smaller than that of the test springs 24 when the hanger is clamped to the rope 19, the sleeve 23 thereby moves in the direction of the rope 19, as shown in FIG. 2.
  • the size «x» of the displacement is a measure of the falling below the required spring force.
  • a rod-like extension 25 is attached to the sleeve 23, which rotates a shift lever 26.
  • a stationary switch 27 is attached, which is actuated by a rotatable switching element 28. This is arranged so that with sufficient force of the spring assembly 18, the shift lever 26 moves past the switching piece 28 (Fig. 1). However, as shown in Fig.
  • the force of the spring assembly 18 has decreased so far that the test springs 24 have shifted the sleeve 23 to a certain extent, the shift lever 26 is rotated downward and it abuts the contact piece 28 the system is switched off and / or a signal is triggered.
  • the deformation of the test spring 24 is measured via a rotatable part.
  • the abutment 23 has on its side facing away from the compression spring 18 on a circular ring arranged conical depressions 29 'for receiving balls 30, which are kept at a distance by a cage 31 and are supported on a pressure plate 32, which also corresponds to the balls 30 depressions
  • the pressure plate 32 is rotatably supported by means of an axial bearing 33 via a bush 34 on the end plate 7 of the terminal housing.
  • a torsion spring 24 engages with its ends in corresponding bores in the pressure plate or the end plate 7.
  • the abutment 23 is by means of a 1 and 2, a coupling piece (not shown here) and a stop are fastened to the abutment 23, as is the case in the embodiment according to FIGS.
  • test spring 24 is biased so much that it is unable to rotate the pressure plate 32 with sufficient force of the compression spring 18. However, if the force of the compression spring drops below the predetermined value, the balls 30 snap out of the recesses 29 'or 29 "by rotating the pressure plate 32 and the abutment 23 is displaced axially, as a result of which the coupling piece 25, the stop 26 and the actuator 28 of the switch 27 is activated.
  • the compression spring including the abutment can be rotatably mounted, so that an anti-rotation device can be omitted.
  • the compression spring is not supported directly at its end facing away from the abutment 23, but via an axial bearing 33 on the rod 16.
  • the pressure plate 30 is supported on the end plate 7, being secured against rotation in a manner not shown, for example by a pin.
  • the coupling piece 25 is designed so that it allows rotation of the abutment 23; for example, it can slide against it.
  • the ends of the test spring 24 engage in corresponding bores in the abutment 23 or in the end plate 7.
  • test spring 24 can also be designed as a helical spring, which is located on the one hand on the U-shaped part 6 of the terminal housing and on the other hand on an extension 37 of the pressure plate 32 (embodiment according to FIG. 3) or Abutment 23 (execution according to FIG. 4) is supported.
  • a plurality of test springs distributed over the circumference are preferably arranged.
  • the displacement of the sleeve could not be transmitted mechanically, but electronically, optically, magnetically, etc. to the fixed switch.
  • the test spring could also be designed as a plate spring package, but this would increase the required length.
  • the implementation of the principle according to the invention is not limited to a clamp with only one movable jaw; it can also be used with two movable jaws and in gondola lifts with double clamps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Ropes Or Cables (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Executing Machine-Instructions (AREA)
  • Saccharide Compounds (AREA)
  • Clamps And Clips (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Flexible Shafts (AREA)
  • Springs (AREA)
  • Disintegrating Or Milling (AREA)
  • Harvester Elements (AREA)
  • Gloves (AREA)
  • Supports For Pipes And Cables (AREA)
  • Bridges Or Land Bridges (AREA)
  • Jigs For Machine Tools (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Centrifugal Separators (AREA)

Abstract

PCT No. PCT/AT84/00031 Sec. 371 Date May 14, 1985 Sec. 102(e) Date May 14, 1985 PCT Filed Sep. 19, 1984 PCT Pub. No. WO85/01257 PCT Pub. Date Mar. 28, 1985.Device for continuously controlling the clamping force in monocable ropeways, comprising a test spring which acts against the pressure spring and which is arranged with the latter-mentioned in the pressure mechanism. A signal and/or stop device is responsive to a deformation of the test spring when a predetermined threshold magnitude of deformation has been exceeded.

Description

Die Erfindung bezieht sich auf eine Kuppelklemme zum Anklemmen von Transportmitteln an ein bewegbares Seil, insbesondere für Gehänge von Seilumlaufbahnen, mit mindestens einem Paar das Seil umfassenden Backen, wobei mindestens eine Backe durch wenigstens eine Druckfeder an das Seil andrückbar bzw. von diesem durch einen vorzugsweise schwenkbaren und an einer ortsfesten Schiene auflaufenden Hebel abhebbar ist, und mit einer Einrichtung, welche die Verformung mindestens einer Prüffeder bei an das Seil angeklemmten Backen mißt und bei Überschreiten eines vorgegebenen Wertes eine Signal- und/ oder Anhaltevorrichtung zum Ansprechen bringt. Die Verformung der Prüffeder ist dabei ein Maß für die Kraft der die Klemmung bewirkenden Druckfeder. Diese Kraft kann sowohl durch Alterung der Druckfeder oder durch Bruch einzelner Elemente derselben als auch durch Abnutzung der beweglichen Verbindungen zwischen Druckfeder und Klemmbacke im Lauf der Zeit abnehmen.The invention relates to a dome clamp for attaching means of transport to a movable rope, in particular for hangers of cable orbits, with at least one pair of jaws comprising the rope, wherein at least one jaw can be pressed onto the rope by at least one compression spring, or preferably by one of these pivotable and on a stationary rail lever can be lifted, and with a device that measures the deformation of at least one test spring when the jaws are clamped to the rope and, when a predetermined value is exceeded, triggers a signaling and / or stopping device. The deformation of the test spring is a measure of the force of the compression spring causing the clamping. This force can decrease over time due to the aging of the compression spring or due to the breakage of individual elements of the compression spring as well as through the wear of the movable connections between the compression spring and the jaw.

Bei einer bekannten Vorrichtung der genannten Art (US-A-3 416 462) ist die ortsfeste Schiene über eine Feder abgestützt, welche durch die Kraft der auf die Schiene auflaufenden Rolle des Abhebemechanismus zusammengedrückt wird. Unterschreitet diese Kraft einen vorgegebenen Wert, so wird diese Feder nicht mehr oder nur unvollständig zusammengedrückt, wodurch die Weiterfahrt dieses Gehänges unterbunden wird. Ein Nachteil dieser Vorrichtung besteht darin, daß sie empfindlich gegen Schwenkbewegungen des Gehänges ist, so daß es durch dynamische Einflüsse zu Fehlschaltungen kommen kann. Weiters wird die Kraft der Andrückfeder im abgeklemmten Zustand gemessen, während für die Sicherheit der Klemmung die Kraft bei angeklemmtem Gehänge maßgebend ist.In a known device of the type mentioned (US-A-3 416 462), the stationary rail is supported by a spring which is compressed by the force of the roller of the lifting mechanism which runs onto the rail. If this force falls below a predetermined value, this spring is no longer compressed or is compressed only incompletely, as a result of which this suspension is prevented from continuing to travel. A disadvantage of this device is that it is sensitive to pivoting movements of the hanger, so that incorrect switching can occur due to dynamic influences. Furthermore, the force of the pressure spring is measured in the disconnected state, while the force when the hanger is clamped is decisive for the safety of the clamping.

Eine Prüfeinrichtung anderen Prinzips ist für Doppelklemmen, also für Kuppelklemmen mit zwei in Seilrichtung hintereinander angeordneten Paaren von Klemmbacken bekannt geworden (DE-A-1 933 752), bei der zwischen den beiden Klemmbackenpaaren eine Prüffeder in der Weise wirkt, daß sie die beiden Klemmbackenpaare in Seilrichtung auseinanderzudrängen versucht. Gelingt dies - was der Fall ist, wenn mindestens eines der Paare von Klemmbacken unter der Wirkung der Prüffeder rutscht - dann wird über einen die beiden Klemmbackenpaare verbindenden Kniehebel eine Alarmvorrichtung ausgelöst. Bei dieser Prüfeinrichtung wird also nicht direkt die Klemmkraft der Druckfeder gemessen. Der Nachteil dieser Prüfeinrichtung ist es, daß sie nur bei Doppelklemmen anwendbar ist, nicht aber bei Kuppelklemmen mit nur einem Paar von Klemmbacken und daß die einzelnen Klemmbackenpaare durch die Prüffeder dauernd in Seilrichtung belastet sind.A test device of another principle has become known for double clamps, i.e. for dome clamps with two pairs of jaws arranged one behind the other in the direction of the cable (DE-A-1 933 752), in which a test spring acts between the two pairs of jaws in such a way that it couples the two pairs of jaws tried to push apart in the direction of the rope. If this succeeds - which is the case if at least one of the pairs of jaws slips under the action of the test spring - then an alarm device is triggered via a toggle lever connecting the two pairs of jaws. With this test device, the clamping force of the compression spring is not measured directly. The disadvantage of this test device is that it can only be used with double clamps, but not with dome clamps with only one pair of clamping jaws and that the individual pairs of clamping jaws are constantly loaded in the cable direction by the test spring.

Aufgabe der Erfindung ist es, eine Kuppelklemme mit einer Prüfeinrichtung für die Klemmkraft zu schaffen, durch welche unbeeinflußt durch Bewegungen des Gehänges und unabhängig von dessen Geschwindigkeit die Klemmkraft der Druckfeder bei angeklemmten Backen überprüft wird und die auch bei Kuppelklemmen und nur einem Paar von Klemmbacken anwendbar ist.The object of the invention is to provide a dome clamp with a test device for the clamping force, through which the clamping force of the compression spring is checked when jaws are clamped, regardless of the movements of the hanger and regardless of its speed, and which can also be used with dome clamps and only a pair of clamping jaws is.

Dies wird erfindungsgemäß dadurch erreicht, daß in jeder Klemme mindestens eine Prüffeder so angeordnet und bemessen ist, daß sie die Druckfeder komprimiert, sobald die Federkraft der Druckfeder bei geschlossenen Backen einen vorgegebenen Wert unterschreitet.This is achieved according to the invention in that at least one test spring is arranged and dimensioned in each clamp such that it compresses the compression spring as soon as the spring force of the compression spring falls below a predetermined value when the jaws are closed.

Bei der erfindungsgemäßen Kuppelklemme ist daher die Prüfeinrichtung im Klemmapparat integriert. Damit werden die Prüfelemente in die Nähe der Klemmbacken gerückt und Übertragungsfehler statischer und dynamischer Art weitestgehend ausgeschaltet. Die Prüfeinrichtung reagiert, sobald sich die Klemmkraft der Druckfeder um ein vorgegebenes Ausmaß verringert und mißt dabei die Klemmkraft bei angeklemmten Backen, also in jenem Zustand, der für die Sicherheit der Klemmvorrichtung maßgebend ist.In the dome clamp according to the invention, the test device is therefore integrated in the clamping device. This moves the test elements close to the jaws and largely eliminates static and dynamic transmission errors. The test device reacts as soon as the clamping force of the compression spring decreases by a predetermined amount and measures the clamping force when the jaws are clamped, that is to say in the state which is decisive for the safety of the clamping device.

Die Erfindung wird nachstehend anhand der Zeichnungen durch Ausführungsbeispiele näher erläutert.

  • Fig. 1 stellt einen Längsschnitt durch eine erfindungsgemäße Kuppelklemme dar, wobei die Teile in der Lage gezeichnet sind, in der sie sich bei ausreichender Kraft des Druckfederpaketes bei an das Seil angedrückten Klemmbacken befinden.
  • Fig. 2 stellt ebenfalls im Längsschnitt die Lage der Teile bei unzureichender Klemmkraft dar.
  • Fig. 3 und 4 zeigen in einem Ausschnitt je eine Variante.
  • Fig. 5 stellt eine für diese Variante abgeänderte Form der Prüffeder dar.
The invention is explained in more detail below with the aid of exemplary embodiments.
  • Fig. 1 shows a longitudinal section through a dome clamp according to the invention, the parts being drawn in the position in which they are with sufficient force of the compression spring assembly with the jaws pressed against the rope.
  • Fig. 2 also shows in longitudinal section the position of the parts with insufficient clamping force.
  • 3 and 4 each show a variant in a detail.
  • Fig. 5 shows a modified form of the test spring for this variant.

Wie die Fig. 1 und 2 erkennen lassen, weist das Gehänge des Liftes an seinem oberen Ende ein Rohrstück 2 auf, welches um eine Achse 3 drehbar gelagert ist, um Pendelbewegungen in Fahrtrichtung zu ermöglichen. Quer zur Fahrtrichtung wird ein unerwünschtes Ausschwenken durch eine am freien Ende der Achse 3 gelagerte Rolle 4 verhindert, welche in einer in der Station angebrachten Führungsscheine 5 abläuft.As can be seen in FIGS. 1 and 2, the hanger of the lift has at its upper end a pipe section 2 which is rotatably mounted about an axis 3 in order to enable pendulum movements in the direction of travel. Crosswise to the direction of travel, an undesired swiveling is prevented by a roller 4 which is mounted at the free end of the axle 3 and which runs in a guide 5 attached in the station.

Die Achse 3 ist in einen Klemmenkasten eingesetzt, welcher aus einem U-förmigen Teil 6 und zwei Stirnplatten 7 bzw. 8 besteht. Bei 9 ist eine Rolle des Laufwerkes und die entsprechende Fahrschiene angedeutet, womit bei vom Seil gelöstem Sessel dieser unterstützt wird.The axis 3 is inserted in a terminal box, which consists of a U-shaped part 6 and two end plates 7 and 8. At 9, a role of the running gear and the corresponding travel rail are indicated, with which this is supported when the chair is released from the rope.

An einem Fortsatz des Klemmenkastens ist der feste Klemmbacken 10 befestigt. Der bewegliche Klemmbacken 11 ist um einen Bolzen 12 drehbar gelagert. An seinem dem Klemmenkasten zugewandten Ende ist er mittels eines Bolzens 13 an ein schräg angeordnetes Druckstück 14 angelenkt, welches seinerseits mittels eines Bolzens 15 mit einer im Klemmenkasten längsverschieblich gelagerten Stange 16 verbunden ist. An einem Absatz 17 dieser Stange liegt ein Tellerfederpaket 18 an, welches die Stange 16 in Richtung auf die Klemmbacken zu schieben versucht, so daß über das Druckstück 14 der bewegliche Klemmbacken 11 an das Seil 19 gedrückt wird. Die Geometrie und die Federkraft sind dabei so gewählt, daß bei ungünstigsten Bedingungen eine etwa dreifache Sicherheit gegen Rutschen vorhanden ist.The fixed clamping jaw 10 is fastened to an extension of the terminal box. The movable clamping jaw 11 is rotatably mounted about a bolt 12. At its end facing the terminal box, it is articulated by means of a bolt 13 to an obliquely arranged pressure piece 14, which in turn is connected by means of a bolt 15 to a rod 16 which is mounted in the terminal box so as to be longitudinally displaceable. At a shoulder 17 of this rod is a plate spring assembly 18, which tries to push the rod 16 in the direction of the jaws, so that the movable jaw 11 is pressed against the cable 19 via the pressure piece 14. The geometry and the spring force are chosen so that there is approximately three times the security against slipping under the most unfavorable conditions.

Zum Lösen der Klemmverbindung in der Station wird die Stange 16 entgegen der Kraft des Federpaketes 18 bewegt. Dies erfolgt mittels eines drehbar gelagerten Hebels 20, der an seinem einen Ende durch eine Lasche 21 mit der Stange 16 verbunden ist und an seinem anderen Ende eine Rolle 22 trägt, welche auf eine nicht dargestellte Schiene in der Station aufläuft.To release the clamp connection in the station, the rod 16 is moved against the force of the spring assembly 18. This is done by means of a rotatably mounted lever 20 which is connected at one end to the rod 16 by a tab 21 and at its other end carries a roller 22 which runs onto a rail, not shown, in the station.

Um bei jedem Klemmvorgang zu prüfen, ob das Federpaket 18 die vorgesehene Kraft ausübt, stützt sich dieses an der Stirnplatte 7 nicht direkt, sondern über eine topfförmige, in der Stirnplatte 7 längsverschieblich geführte Hülse 23 ab. Diese ist mit mehreren axial verlaufenden Bohrungen zur Aufnahme von Schraubenfedern 24 versehen, welche sich an der Stirnplatte 7 abstützen.In order to check with each clamping operation whether the spring assembly 18 exerts the intended force, this is not supported directly on the end plate 7, but rather via a cup-shaped sleeve 23 guided in the end plate 7 in a longitudinally displaceable manner. This is provided with a plurality of axially running bores for receiving helical springs 24, which are supported on the end plate 7.

Die Druckfedern 18 und die Prüffedern 24 stützen sich demnach gemeinsam auf einem Widerlager ab, welches durch die Hülse 23 gebildet wird.The compression springs 18 and the test springs 24 are accordingly supported together on an abutment which is formed by the sleeve 23.

Die Gesamtkraft dieser Prüffedern 24 wird so gewählt, daß sie wenig kleiner als jene des Federpaketes 18 ist, wenn die untere Toleranzgrenze der Federkraft erreicht ist. Ist bei an das Seil 19 angeklemmtem Gehänge die Kraft des Federpaketes 18 kleiner als jene der Prüffedern 24, so bewegt sich dadurch die Hülse 23 in Richtung auf das Seil 19 hin, wie dies in Fig. 2 dargestellt ist. Die Größe « x » der Verschiebung ist dabei ein Maß für die Unterschreitung der erforderlichen Federkraft.The total force of these test springs 24 is chosen so that it is slightly less than that of the spring assembly 18 when the lower tolerance limit of the spring force is reached. If the force of the spring assembly 18 is smaller than that of the test springs 24 when the hanger is clamped to the rope 19, the sleeve 23 thereby moves in the direction of the rope 19, as shown in FIG. 2. The size «x» of the displacement is a measure of the falling below the required spring force.

Überschreitet diese Verschiebung ein vorgegebenes Maß, so wird dadurch eine Ausschaltung der Anlage und/oder eine Signalabgabe bewirkt. Dazu ist an der Hülse 23 ein stangenartiger Fortsatz 25 befestigt, welcher einen Schalthebel 26 verdreht. Am Ausgang der Station, wo die Rolle 22 von der (nicht dargestellten) Schiene bereits wieder abgelaufen ist, ist ein ortsfester Schalter 27 angebracht, welcher durch ein drehbares Schaltstück 28 betätigt wird. Dieses ist so angeordnet, daß bei ausreichender Kraft des Federpaketes 18 der Schalthebel 26 sich neben dem Schaltstück 28 vorbeibewegt (Fig. 1). Hat jedoch, wie in Fig. 2 dargestellt, die Kraft des Federpaketes 18 so weit abgenommen, daß die Prüffedern 24 die Hülse 23 um ein gewisses Maß verschoben haben, so wird der Schalthebel 26 nach unten verdreht und er stößt an das Schaltstück 28. Damit wird die Ausschaltung der Anlage und/ oder ein Signal ausgelöst.If this shift exceeds a predetermined level, this causes the system to be switched off and / or a signal to be emitted. For this purpose, a rod-like extension 25 is attached to the sleeve 23, which rotates a shift lever 26. At the exit of the station, where the roller 22 has already run off the rail (not shown), a stationary switch 27 is attached, which is actuated by a rotatable switching element 28. This is arranged so that with sufficient force of the spring assembly 18, the shift lever 26 moves past the switching piece 28 (Fig. 1). However, as shown in Fig. 2, the force of the spring assembly 18 has decreased so far that the test springs 24 have shifted the sleeve 23 to a certain extent, the shift lever 26 is rotated downward and it abuts the contact piece 28 the system is switched off and / or a signal is triggered.

Bei der Ausführung nach Fig. 3 erfolgt die Messung der Verformung der Prüffeder 24 über einen verdrehbaren Teil. Das Widerlager 23 weist an seiner der Druckfeder 18 abgewandten Seite auf einem Kreisring angeordnete kegelförmige Vertiefungen 29' zur Aufnahme von Kugeln 30 auf, welche durch einen Käfig 31 auf Abstand gehalten werden und sich an einer Druckplatte 32 abstützen, welche ebenfalls den Kugeln 30 entsprechende Vertiefungen 29" aufweist. Die Druckplatte 32 ist mittels eines Axiallagers 33 über eine Buchse 34 an der Stirnplatte 7 des Klemmengehäuses drehbar gelagert. Eine Drehfeder 24 greift mit ihren Enden in entsprechende Bohrungen der Druckplatte bzw. der Stirnplatte 7 ein. Das Widerlager 23 ist mittels eines Querstiftes 35 und eines Langloches 36 in der Stange 16 gegen Verdrehen gesichert, kann sich jedoch in Längsrichtung verschieben. Ebenso wie in der Ausführung nach den Fig. 1 und 2 ist am Widerlager 23 ein hier nicht dargestelltes Kupplungsstück und ein Anschlag befestigt.In the embodiment according to FIG. 3, the deformation of the test spring 24 is measured via a rotatable part. The abutment 23 has on its side facing away from the compression spring 18 on a circular ring arranged conical depressions 29 'for receiving balls 30, which are kept at a distance by a cage 31 and are supported on a pressure plate 32, which also corresponds to the balls 30 depressions The pressure plate 32 is rotatably supported by means of an axial bearing 33 via a bush 34 on the end plate 7 of the terminal housing. A torsion spring 24 engages with its ends in corresponding bores in the pressure plate or the end plate 7. The abutment 23 is by means of a 1 and 2, a coupling piece (not shown here) and a stop are fastened to the abutment 23, as is the case in the embodiment according to FIGS.

Die Prüffeder 24 wird so stark vorgespannt, daß sie bei ausreichender Kraft der Druckfeder 18 nicht imstande ist, die Druckplatte 32 zu verdrehen. Sinkt jedoch die Kraft der Druckfeder unter den vorgegebenen Wert, so rasten die Kugeln 30 durch die Verdrehung der Druckplatte 32 aus den Vertiefungen 29' bzw. 29" aus und das Widerlager 23 wird axial verschoben, wodurch über das Kupplungsstück 25, den Anschlag 26 und das Betätigungsglied 28 der Schalter 27 zum Ansprechen gebracht wird.The test spring 24 is biased so much that it is unable to rotate the pressure plate 32 with sufficient force of the compression spring 18. However, if the force of the compression spring drops below the predetermined value, the balls 30 snap out of the recesses 29 'or 29 "by rotating the pressure plate 32 and the abutment 23 is displaced axially, as a result of which the coupling piece 25, the stop 26 and the actuator 28 of the switch 27 is activated.

Wie die Fig. 4 zeigt, kann auch die Druckfeder einschließlich des Widerlagers drehbar gelagert werden, so daß eine Verdrehsicherung entfallen kann. Die Druckfeder stützt sich an ihrem dem Widerlager 23 abgewandten Ende nicht direkt, sondern über ein Axiallager 33 an der Stange 16 ab. Die Druckplatte 30 stützt sich an der Stirnplatte 7 ab, wobei sie auf nicht dargestellte Art, beispielsweise durch einen Stift, gegen Verdrehen gesichert ist. Das Kupplungsstück 25 ist so ausgebildet, daß es eine Verdrehung des Widerlagers 23 zuläßt ; beispielsweise kann es gleitend an diesem anliegen. Die Prüffeder 24 greift mit ihren Enden in entsprechende Bohrungen im Widerlager 23 bzw. in der Stirnplatte 7 ein.As shown in Fig. 4, the compression spring including the abutment can be rotatably mounted, so that an anti-rotation device can be omitted. The compression spring is not supported directly at its end facing away from the abutment 23, but via an axial bearing 33 on the rod 16. The pressure plate 30 is supported on the end plate 7, being secured against rotation in a manner not shown, for example by a pin. The coupling piece 25 is designed so that it allows rotation of the abutment 23; for example, it can slide against it. The ends of the test spring 24 engage in corresponding bores in the abutment 23 or in the end plate 7.

Wie die Fig. 5 zeigt, kann anstelle der Drehfeder die Prüffeder 24 auch als Schraubenfeder ausgebildet sein, welche sich einerseits am U-förmigen Teil 6 des Klemmengehäuses und anderseits an einem Fortsatz 37 der Druckplatte 32 (Ausführung nach Fig. 3) bzw. des Widerlagers 23 (Ausführung nach Fig. 4) abstützt. Vorzugsweise werden mehrere über den Umfang verteilte Prüffeder angeordnet.5 shows, instead of the torsion spring, the test spring 24 can also be designed as a helical spring, which is located on the one hand on the U-shaped part 6 of the terminal housing and on the other hand on an extension 37 of the pressure plate 32 (embodiment according to FIG. 3) or Abutment 23 (execution according to FIG. 4) is supported. A plurality of test springs distributed over the circumference are preferably arranged.

Im Rahmen der Erfindung sind zahlreiche Varianten möglich. So könnte beispielsweise die Verschiebung der Hülse nicht mechanisch, sondern elektronisch, optisch, magnetisch usw. auf den ortsfesten Schalter übertragen werden. Weiters könnte auch die Prüffeder als Tellerfederpaket ausgebildet werden, was allerdings die erforderliche Länge vergrößern würde. Schließlich ist die Verwirklichung des erfindungsgemäßen Prinzips nicht auf eine Klemme mit nur einer beweglichen Backe beschränkt; es läßt sich auch bei zwei beweglichen Backen sowie in Gondelbahnen mit Doppelklemmen anwenden.Numerous variants are possible within the scope of the invention. For example, the displacement of the sleeve could not be transmitted mechanically, but electronically, optically, magnetically, etc. to the fixed switch. Furthermore, the test spring could also be designed as a plate spring package, but this would increase the required length. Finally, the implementation of the principle according to the invention is not limited to a clamp with only one movable jaw; it can also be used with two movable jaws and in gondola lifts with double clamps.

Claims (5)

1. A coupling clamp for clamping transportation means to a movable cable, in particular for hangers of circulating cable ways, comprising at least one pair of jaws (10, 11) for embracing the cable (19), wherein at least one jaw (11) can be pressed against the cable by at least one compression spring (18) and can be lifted away from the cable by a preferably pivotable lever (20) which runs on a stationary rail, and a means which measures the deformation of at least one test spring (24) when the jaws (10, 11) are clamped to the cab (19) and causes a signal and/or stop device to respond when a predetermined value is exceeded, characterised in that in each clamp at least one test spring (24) is of such an arrangment and of such a size that it compresses the compression spring (18) when the spring force of the compression spring (18) falls below a predetermined value when the jaws (10, 11) are closed.
2. A coupling clamp according to claim 1 characterised in that there are a plurality of test springs (24) arranged in parallel.
3. A coupling clamp according to claim 1 characterised in that the compression spring (18) bears against a displaceable support (23).
4. A coupling clamp according to claim 3 characterised in that the support (23) is in the form of a supporting means for the test spring (24).
5. A coupling clamp according to claim 4 characterised in that the support (23) comprises a cup-shaped sleeve having an end portion against which the compression spring (18) bears and having a wall which has a plurality of axial bores for accommodating the test springs (24) which arc preferably in the form of coil springs.
EP84890172A 1983-09-20 1984-09-19 Detachable grip Expired EP0150701B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3354/83 1983-09-20
AT335483 1983-09-20

Publications (2)

Publication Number Publication Date
EP0150701A1 EP0150701A1 (en) 1985-08-07
EP0150701B1 true EP0150701B1 (en) 1988-01-20

Family

ID=3549257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84890172A Expired EP0150701B1 (en) 1983-09-20 1984-09-19 Detachable grip

Country Status (14)

Country Link
US (1) US4686906A (en)
EP (1) EP0150701B1 (en)
JP (1) JPS60502199A (en)
AT (1) ATE32047T1 (en)
AU (1) AU568158B2 (en)
CA (1) CA1213846A (en)
DE (1) DE3468844D1 (en)
ES (1) ES8505878A1 (en)
FI (1) FI851791A0 (en)
IS (1) IS1266B6 (en)
IT (1) IT8406740V0 (en)
NO (1) NO160343C (en)
WO (1) WO1985001257A1 (en)
ZA (1) ZA847171B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404015B (en) * 1996-04-17 1998-07-27 Andritz Patentverwaltung METHOD FOR DRYING GOODS, IN PARTICULAR SEWAGE SLUDGE

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606145B1 (en) * 1986-11-04 1988-12-30 Skirail Ind METHOD AND DEVICE FOR MONITORING THE TIGHTENING EFFORT, IN PARTICULAR FOR A DETACHABLE CLIP FOR A TELEPORTED APPARATUS
AT388346B (en) * 1987-11-25 1989-06-12 Wopfner Kg Felix DETACHABLE CLAMP FOR CLAMPING TRANSPORT MEANS TO A MOVING ROPE
IT1244238B (en) * 1990-09-10 1994-07-08 Leitner Spa Device for controlling the clamping force of an automatically acting clamp on a suspension/haulage cable in cable-car systems
FR2676981B1 (en) * 1991-06-03 1993-08-27 Pomagalski Sa SAFETY DEVICE OF AN AIR CABLE TRANSPORTATION INSTALLATION.
IT1260802B (en) 1992-09-02 1996-04-22 Leitner Spa SPRING INTEGRITY CONTROL DEVICE.
FR2697056B1 (en) * 1992-10-19 1995-02-17 Pomagalski Sa Clamp tightness control device.
AT404458B (en) * 1993-03-30 1998-11-25 Doppelmayr & Sohn DEVICE FOR CONNECTING A VEHICLE OPERATING EQUIPMENT
IT1270233B (en) * 1994-06-16 1997-04-29 Leitner Spa DOUBLE ACTION VICE FOR THE ROPE-RELEASE OF A FUNICULAR VEHICLE
DE4430984C1 (en) * 1994-08-31 1995-09-07 Sachtler Ag Film studio lamp trolley movable along guide rod
GB2303713B (en) * 1995-07-26 1999-03-03 Deeweld Limited A load indicator device
FR2750764B1 (en) * 1996-07-04 1998-09-18 Pomagalski Sa DEVICE FOR TELEMENTING THE CLAMP FORCE
FR2758116B1 (en) * 1997-01-06 1999-02-05 Pomagalski Sa DETACHABLE CLAMP OF A TRANSPORTATION SYSTEM WITH A TRACTOR CABLE
AT405388B (en) * 1997-11-13 1999-07-26 Garaventa Holding Ag Device for transmitting clamping force
IT1317222B1 (en) * 2000-04-12 2003-05-27 Leitner Spa AUTOMATIC TIGHTENING DEVICE FOR TYPE OF WIRE ROPE SYSTEMS
US8408069B2 (en) * 2011-04-26 2013-04-02 Cheng Uei Precision Industry Co., Ltd. Torsion spring test jig
NO336039B1 (en) 2013-09-06 2015-04-27 Magseis As Device for deployment and retrieval of seismic nodes
FI126173B (en) * 2013-11-12 2016-07-29 Konecranes Global Oy Monitoring the condition of an elongated ferrous object having a longitudinal axis
AT14929U1 (en) 2014-01-24 2016-08-15 Wopfner Kurt Clamping device for a cable orbit
NO340929B1 (en) * 2014-10-24 2017-07-17 Magseis As Method and node deployer for seismic surveys
FR3038282B1 (en) * 2015-06-30 2017-08-11 Lst Ropeway Systems COUPLING DEVICE FOR COUPLING A VEHICLE TO A TRACTOR CABLE OF A TRANSPORT FACILITY
JP7214188B2 (en) * 2018-11-07 2023-01-30 日本ケーブル株式会社 Cableway facility power supply device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH384614A (en) * 1961-02-24 1964-11-30 Walter Staedeli Maschinenbau Rope clamp
FR1371008A (en) * 1963-09-27 1964-08-28 Clamp for tightening on the cable of single-cable cable cars
FR1453517A (en) * 1965-08-12 1966-06-03 Pomagalski Jean Sa Device for coupling loads suspended from a cable
CH445550A (en) * 1965-10-29 1967-10-31 Von Roll Ag Cable car suspension with clamping device testing device
FR1537191A (en) * 1967-07-13 1968-08-23 Improvements to disengageable coupling devices for loads suspended from a moving cable
CH493353A (en) * 1968-07-08 1970-07-15 Von Roll Ag Device for clamping a transport device to a pull rope and for indicating an insufficient clamping connection
US3714904A (en) * 1971-07-26 1973-02-06 Pohlig Heckel Bleichert Arrangement for automatically testing the grip of gripping jaw means of cable cars on a tension cable
IT967696B (en) * 1972-09-21 1974-03-11 Agudio Off Mec SUSPENSION LUMINAIRE FOR CONTINUOUS SINGLE SMOKE OR BIFUNAL AERIAL FUNICULARS WITH TIGHTENING CONTROL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404015B (en) * 1996-04-17 1998-07-27 Andritz Patentverwaltung METHOD FOR DRYING GOODS, IN PARTICULAR SEWAGE SLUDGE

Also Published As

Publication number Publication date
AU3437684A (en) 1985-04-11
ZA847171B (en) 1985-05-29
NO160343B (en) 1989-01-02
NO160343C (en) 1989-04-12
FI851791L (en) 1985-05-07
IS2941A7 (en) 1985-03-21
JPS60502199A (en) 1985-12-19
FI851791A0 (en) 1985-05-07
CA1213846A (en) 1986-11-12
DE3468844D1 (en) 1988-02-25
ES535934A0 (en) 1985-06-16
AU568158B2 (en) 1987-12-17
NO851927L (en) 1985-05-14
US4686906A (en) 1987-08-18
ES8505878A1 (en) 1985-06-16
ATE32047T1 (en) 1988-02-15
WO1985001257A1 (en) 1985-03-28
IT8406740V0 (en) 1984-09-18
EP0150701A1 (en) 1985-08-07
IS1266B6 (en) 1987-03-27

Similar Documents

Publication Publication Date Title
EP0150701B1 (en) Detachable grip
DE60003262T2 (en) Braking device with brake adjustment device
DE102013111385A1 (en) Tripping device of a safety gear for an elevator car of an elevator installation
WO2015091102A2 (en) Stop arrangement and braking device having such an arrangement
DE4407265C2 (en) Lifting device
EP1205418B1 (en) Braking device for an elevator
DE2056429A1 (en) Movable device for reaching under and then lifting loads
DE2121307C3 (en) Spring-loaded braking device for rail or cable-guided conveying means, in particular for mountain railways
DE3214578C2 (en) Device for stabilizing a barcentrically suspended beam, preferably a spray frame for plant protection devices
EP3468908A1 (en) Catch device for a lifting mechanism
EP0665151B1 (en) Tread brake unit for railway vehicles
DE3341414A1 (en) Device for testing overload safety devices on lifting appliances
AT402725B (en) LUBRICATION DEVICE FOR BOLTS OF A CONVEYOR CHAIN
DE19635244C2 (en) Safety braking device for rope conveyors
DE2019412A1 (en) Device for supporting the pedal force in motor vehicle clutches, especially for heavy vehicles
EP0518328A1 (en) Unloading station for pivoting trays
DE1189917B (en) Brake roller for a roller table formed from support rollers lying one behind the other
DE29610702U1 (en) Conveyor
EP2931640B1 (en) Capture device for a lift system
EP4234470A1 (en) Trigger unit for a catching device
DE2147669A1 (en) Elevator drive II
EP0163909A2 (en) Load lifting device
DE3516233C2 (en)
DE20119594U1 (en) Spring break protection for gates
DE3443045A1 (en) Device for moving a part by electric motor

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19851204

17Q First examination report despatched

Effective date: 19860606

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KONRAD DOPPELMAYR & SOHN MASCHINENFABRIK GESELLSCH

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 32047

Country of ref document: AT

Date of ref document: 19880215

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3468844

Country of ref document: DE

Date of ref document: 19880225

ET Fr: translation filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19881124

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19890919

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19890927

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19891004

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19900531

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19900920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19900930

Ref country code: CH

Effective date: 19900930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19910601

EUG Se: european patent has lapsed

Ref document number: 84890172.4

Effective date: 19910527

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20030912

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20040919