EP0475114A1 - Safety catch for an elevator with a speed governor attached to the cabin - Google Patents

Safety catch for an elevator with a speed governor attached to the cabin Download PDF

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Publication number
EP0475114A1
EP0475114A1 EP91113768A EP91113768A EP0475114A1 EP 0475114 A1 EP0475114 A1 EP 0475114A1 EP 91113768 A EP91113768 A EP 91113768A EP 91113768 A EP91113768 A EP 91113768A EP 0475114 A1 EP0475114 A1 EP 0475114A1
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EP
European Patent Office
Prior art keywords
cabin
speed limiter
release
safety device
arm
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EP91113768A
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German (de)
French (fr)
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EP0475114B1 (en
Inventor
David B. Pearson
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Inventio AG
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Inventio AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044—Mechanical overspeed governors

Definitions

  • the invention relates to a safety device with a speed limiter for elevators arranged on a car, which has a wheel driven by a guide rail and supported by a U-shaped frame connected to the car by means of a preload cylinder, on which a release mechanism based on the centrifugal force principle is arranged , which actuates the safety gear in the downward direction when the car overspeeds.
  • a safety device with a speed limiter arranged on an elevator car which prevents translated speeds of the elevator car when traveling downhill.
  • the speed limiter essentially consists of a spring cylinder rotatably mounted on the elevator car in the direction of travel, which rests on a support at the non-supported end.
  • a fork-shaped frame is arranged which carries a roller cylinder with its ends.
  • One end of the fork-shaped frame is connected to the safety gear by means of an operating rod.
  • the rotatably mounted roller cylinder has on the circumference a groove corresponding in cross section to the profile of the free leg of the guide rail.
  • the actuation of the safety device triggered by the actuating rod is largely identical to the actuation of the safety device triggered by a limiter cable.
  • the release mechanism arranged in the interior of the roll cylinder essentially consists of a pair of weights, which are biased by a spring and rotate with the roll cylinder. With increasing circumferential speed, the weights move radially outward due to centrifugal forces until they hook with their hook-shaped ends on teeth of an internal cylinder which is fixed relative to the roller cylinder.
  • a disadvantage of the known device lies in the complicated mechanical structure of the release mechanism arranged inside the rolling cylinder. Great mechanical effort and the associated large manufacturing and assembly costs are detrimental to the speed limiter in terms of competitiveness.
  • Another disadvantage of the known device is the large masses to be moved in the event of a fault and the associated inertia of the entire safety device. In addition, you can only rely on the speed limiter if there is sufficient friction between the guide rail and the roller cylinder, which is only feasible with periodically cleaned guide rails.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, achieves the object of avoiding the disadvantages of the known device and of designing a safety device with a speed limiter arranged on the cabin in such a way that overspeeds of the cabin in the downward direction and in the upward direction can be avoided.
  • the advantages achieved by the invention are essentially to be seen in the fact that the speed limiter can be arranged independently of the direction of travel and therefore close to the safety gear, that few moving parts are involved in the triggering process, that due to the simple mechanical structure, a complete factory assembly is possible is what makes any on-site assembly unnecessary, that a complete factory adjustment of the safety gear and the speed limiter can be realized with the cabin on which they are arranged and that the adjustment work can be carried out with simple means.
  • 1 to 6, 1 designates a centrifugal speed limiter which cooperates with a safety gear 2 to prevent overspeeds of an elevator car A which are independent of the direction of travel.
  • a console 3 arranged on the elevator car A guides a shaft 4 at right angles to a guide rail 6 arranged on a shaft wall 5.
  • a U-shaped frame 7 is arranged, which carries an impeller 8.
  • a compression spring 9 is telescopically pushed over the shaft 4, so that the axially displaceable shaft 4 is biased towards the shaft wall, whereby the impeller 8 is pressed onto the free leg of the guide rail 6.
  • a pair of release levers 10 is provided on each impeller side, which acts on a locking ring 11 in the event of a fault.
  • the movement of the actuating lever 12 is transmitted on the one hand to a trigger arm 13 and on the other hand to an actuating rod 14, which in turn is connected to the trigger arm of the safety gear opposite.
  • the trigger arm 13 running parallel to the guide rail 6 plunges into a wedge box 15 of the safety device 2. In order to reset the safety device, elevator car A is approached in the opposite direction after a malfunction.
  • the release levers 10, which are rotatably mounted on pivot pins 16, consist of a first leg 17 and a second leg 18.
  • the first leg 17 ends with a centrifugal weight 19 that moves radially depending on the rotational speed, and a pawl 20 is arranged at the end of the second leg 18 in the event of a malfunction engages in one of the notches 21 arranged on the locking ring 11, as a result of which this is set into a rotational movement.
  • a pair of release levers 10 is connected in an articulated manner by means of a compensating member 22, which transfers the biasing force generated by a spring, not shown, from one release lever 10 to the other release lever 10.
  • a first arm 23 of the actuating lever 12 arranged on a wheel axle 24 has at the free end a bolt 25 which engages in an elongated slot 26 arranged on the speed limiter end of the release arm 13.
  • a second arm 27 of the actuating lever 12 transmits at its end the rotational movement of the locking ring 11 which occurs in the event of a fault onto the actuating rod 14.
  • the impeller 8 carried by the U-shaped frame 7 has a circumferential cross section corresponding to the profile of the free leg of the guide rail 6 28 on which the path covered by the elevator car A is transmitted to the impeller 8.
  • a safety wedge 29 is provided on each guide rail side, which slides on a track B or C depending on the direction of the fault in the event of a fault.
  • the catch wedges 29 are actuated by release fingers 30 arranged on the release arms 13 in the catch wedge center by means of actuating springs 31.
  • the prescribed stopping distance can be adjusted with adjusting screws 32 acting on the actuating springs 31.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Braking Arrangements (AREA)
  • Types And Forms Of Lifts (AREA)
  • Jib Cranes (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

A safety apparatus includes a safety device and a centrifugal force speed governor for preventing overspeed conditions of an elevator car in both the downward direction and the upward direction. A bracket attached to the elevator car slidably retains a shaft at right angle to a guide rail attached to an elevator shaft wall. A U-shaped frame is attached to an end of the shaft and rotatably carries a running wheel. A compression spring extends over the shaft between the bracket and the frame to bias the running wheel against the web of the guide rail. On each side of the running wheel, a pair of release levers are rotatably supported to rotate during travel of the car in normal operation. In response to an overspeed condition, the release levers pivot into engagement with a pair of stationary ratchet wheels which are connected with a pair of actuating levers. The ratchet wheels are rotated by the running wheel which movement rotates the actuating levers. The actuating levers each move a release arm and one of the levers is connected to an actuating rod, which in turn is in connected to a release arm of another safety device on the car. The release arms extend into a wedge box of the safety device to actuate wedge-shaped jaws to engage the guide rail. For resetting the safety apparatus, the elevator car is restarted after a safety stop in the opposite direction of travel.

Description

Die Erfindung betrifft eine Fangvorrichtung mit an einer Kabine angeordnetem Geschwindigkeitsbegrenzer für Aufzüge, der ein von einer Führungsschiene angetriebenes und von einem U-förmigen mittels einem Vorspannzylinder mit der Kabine in Verbindung stehenden Rahmen getragenes Laufrad aufweist, an dem ein auf dem Fliehkraftprinzip beruhender Auslösemechanismus angeordnet ist, der bei Übergeschwindigkeiten der Kabine in Abwärtsrichtung die Fangvorrichtung betätigt.The invention relates to a safety device with a speed limiter for elevators arranged on a car, which has a wheel driven by a guide rail and supported by a U-shaped frame connected to the car by means of a preload cylinder, on which a release mechanism based on the centrifugal force principle is arranged , which actuates the safety gear in the downward direction when the car overspeeds.

Aus der Patentschrift US-A-4 662 481 ist eine Fangvorrichtung mit einem auf einer Aufzugskabine angeordneten Geschwindigkeitsbegrenzer bekannt, die übersetzte Geschwindigkeiten der Aufzugskabine bei Abwärtsfahrten verhindern. Der Geschwindigkeitsbegrenzer besteht im wesentlichen aus einem auf der Aufzugskabine in Fahrtrichtung drehbar gelagerten Federzylinder, der am nicht gelagerten Ende auf einer Auflage ruht. Am Ende des Zylinderkolbens ist ein gabelförmiger Rahmen angeordnet, welcher mit seinen Enden einen Rollzylinder trägt. Ein Ende des gabelförmigen Rahmens ist mittels einer Betätigungsstange mit der Fangvorrichtung verbunden. Der drehbar gelagerte Rollzylinder weist am Umfang eine im Querschnitt dem Profil des freien Schenkels der Führungsschiene entsprechende Nut auf. Eine vom Federzylinder ausgehende Kraft presst den Rollzylinder an seiner Nut derart auf den freien Schenkel der Führungsschiene, dass bei Normalbetrieb der von der Aufzugskabine zurückgelegte Weg vom Rollzylinder abgerollt wird. Ein im Inneren des Rollzylinders angeordneter Auslösemechanismus mit Zentrifugalgewichten überwacht die der Kabinengeschwindigkeit proportionale Rotationsgeschwindigkeit des Rollzylinders. Bei Übergeschwindigkeit der Kabine in Abwärtsrichtung blockiert der Auslösemechanismus den Rollzylinder, wodurch dieser eine durch Reibungskräfte zwischen Nut und Führungsschiene bewirkte Relativbewegung nach oben ausführt. Die dabei mittels der Betätigungsstange ausgelöste Betätigung der Fangvorrichtung ist weitgehend identisch mit der mittels einem Begrenzerseil ausgelösten Betätigung der Fangvorrichtung.From the patent US-A-4 662 481 a safety device with a speed limiter arranged on an elevator car is known, which prevents translated speeds of the elevator car when traveling downhill. The speed limiter essentially consists of a spring cylinder rotatably mounted on the elevator car in the direction of travel, which rests on a support at the non-supported end. At the end of the cylinder piston a fork-shaped frame is arranged which carries a roller cylinder with its ends. One end of the fork-shaped frame is connected to the safety gear by means of an operating rod. The rotatably mounted roller cylinder has on the circumference a groove corresponding in cross section to the profile of the free leg of the guide rail. A force emanating from the spring cylinder presses the roller cylinder on its groove onto the free leg of the guide rail in such a way that the path covered by the elevator car is rolled off the roller cylinder during normal operation. A release mechanism with centrifugal weights arranged inside the roll cylinder monitors the rotation speed of the roll cylinder, which is proportional to the cabin speed. If the cabin speed is too low in the downward direction, the release mechanism blocks the roller cylinder, causing it to perform an upward relative movement caused by frictional forces between the groove and the guide rail. The actuation of the safety device triggered by the actuating rod is largely identical to the actuation of the safety device triggered by a limiter cable.

Der im Inneren des Rollzylinders angeordnete Auslösemechanismus besteht im wesentlichen aus einem Paar über eine Feder vorgespannte Gewichte, die mit dem Rollzylinder rotieren. Mit zunehmender Umfangsgeschwindigkeit wandern die Gewichte bedingt durch Zentrifugalkräfte radial nach aussen, bis diese mit ihren hakenförmigen Enden an Zähnen eines innenliegenden gegenüber dem Rollzylinder fixen Zylinders einhaken.The release mechanism arranged in the interior of the roll cylinder essentially consists of a pair of weights, which are biased by a spring and rotate with the roll cylinder. With increasing circumferential speed, the weights move radially outward due to centrifugal forces until they hook with their hook-shaped ends on teeth of an internal cylinder which is fixed relative to the roller cylinder.

Ein Nachteil der bekannten Einrichtung liegt im komplizierten mechanischen Aufbau des im Inneren des Rollzylinders angeordneten Auslösemechanismus. Grosser mechanischer Aufwand und die damit verbundenen grossen Herstellungs- und Montagekosten sind dem Geschwindigkeitsbegrenzer hinsichtlich Konkurrenzfähigkeit abträglich. Ein weiterer Nachteil der bekannten Einrichtung besteht in den grossen im Störfall zu bewegenden Massen und in der damit verbundenen Trägheit der gesamten Sicherheitseinrichtung. Ausserdem ist auf den Geschwindigkeitsbegrenzer nur dann Verlass, wenn genügend Reibung zwischen Führungsschiene und Rollzylinder vorhanden ist, was nur bei periodisch gereinigten Führungsschienen machbar ist.A disadvantage of the known device lies in the complicated mechanical structure of the release mechanism arranged inside the rolling cylinder. Great mechanical effort and the associated large manufacturing and assembly costs are detrimental to the speed limiter in terms of competitiveness. Another disadvantage of the known device is the large masses to be moved in the event of a fault and the associated inertia of the entire safety device. In addition, you can only rely on the speed limiter if there is sufficient friction between the guide rail and the roller cylinder, which is only feasible with periodically cleaned guide rails.

Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe, die Nachteile der bekannten Einrichtung zu vermeiden und eine Fangvorrichtung mit einem an der Kabine angeordneten Geschwindigkeitsbegrenzer so auszubilden, dass Übergeschwindigkeiten der Kabine in Abwärtsrichtung und in Aufwärtsrichtung vermeidbar sind.The invention seeks to remedy this. The invention, as characterized in the claims, achieves the object of avoiding the disadvantages of the known device and of designing a safety device with a speed limiter arranged on the cabin in such a way that overspeeds of the cabin in the downward direction and in the upward direction can be avoided.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass der Geschwindigkeitsbegrenzer unabhängig von der Fahrtrichtung und dadurch nahe bei der Fangvorrichtung angeordnet werden kann, dass wenig bewegte Teile am Auslösevorgang beteiligt sind, dass bedingt durch den einfachen mechanischen Aufbau eine vollständige Fabrikmontage möglich ist, was jegliche Vorortmontage unnötig macht, dass ein vollständiger fabrikseitiger Abgleich der Fangvorrichtung und des Geschwindigkeitsbegrenzers mit der Kabine realisierbar ist, an der sie angeordnet werden und dass die Abgleicharbeiten mit einfachen Mitteln durchführbar sind.The advantages achieved by the invention are essentially to be seen in the fact that the speed limiter can be arranged independently of the direction of travel and therefore close to the safety gear, that few moving parts are involved in the triggering process, that due to the simple mechanical structure, a complete factory assembly is possible is what makes any on-site assembly unnecessary, that a complete factory adjustment of the safety gear and the speed limiter can be realized with the cabin on which they are arranged and that the adjustment work can be carried out with simple means.

Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnungen näher erläutert. Es zeigen:

  • Fig. 1 Eine schematische Darstellung einer Fangvorrichtung mit einem auf der Kabine angeordneten Geschwindigkeitsbegrenzer in Seitenansicht,
  • Fig. 2 eine Aufsicht der Fangvorrichtung und des Geschwindigkeitsbegrenzers gemäss Fig. 1,
  • Fig. 3 und 4 Einzelheiten des erfindungsgemässen Geschwindigkeitsbegrenzers und
  • Fig. 5 und 6 Einzelheiten der erfindungsgemässen Fangvorrichtung.
The invention is explained in more detail below with the aid of drawings which illustrate only one embodiment. Show it:
  • 1 is a schematic side view of a safety device with a speed limiter arranged on the cabin,
  • 2 is a plan view of the safety gear and the speed limiter according to FIG. 1,
  • 3 and 4 details of the speed limiter according to the invention and
  • 5 and 6 details of the safety device according to the invention.

In den Fig. 1 bis 6 ist mit 1 ein Fliehkraft-Geschwindigkeitsbegrenzer bezeichnet, der zur Verhinderung von fahrtrichtungsunabhängigen Übergeschwindigkeiten einer Aufzugskabine A mit einer Fangvorrichtung 2 zusammenarbeitet. Eine an der Aufzugskabine A angeordnete Konsole 3 führt einen Schaft 4 rechtwinklig zu einer an einer Schachtwand 5 angeordneten Führungsschiene 6. Am schachtwandseitigen Ende des Schafts 4 ist ein U-förmiger Rahmen 7 angeordnet, der ein Laufrad 8 trägt. Zwischen Konsole 3 und Rahmen 7 ist eine Druckfeder 9 teleskopartig über den Schaft 4 geschoben, sodass der achsial verschiebbare Schaft 4 in Richtung Schachtwand vorgespannt wird, wodurch das Laufrad 8 auf den freien Schenkel der Führungsschiene 6 gepresst wird. Je Laufradseite ist ein Paar Auslösehebel 10 vorgesehen, das im Störfall auf einen Sperrkranz 11 einwirkt. Die am Laufrad 8 drehbar gelagerten Auslösehebel 10 rotieren bei Kabinenfahrt und Normalbetrieb je Laufradseite um den stillstehenden Sperrkranz 11, der mit einem zweiarmigen Betätigungshebel 12 in fester Verbindung steht. Die Bewegung des Betätigungshebels 12 wird einerseits auf einen Auslösearm 13 und andererseits auf eine Betätigungsstange 14 übertragen, die wiederum in Verbindung mit dem Auslösearm der gegenüberliegenden Fangvorrichtung steht. Der parallel zur Führungsschiene 6 verlaufende Auslösearm 13 taucht in einen Keilkasten 15 der Fangvorrichtung 2 ein. Zur Rücksetzung der Sicherheitseinrichtung wird die Aufzugskabine A nach einem Störfall der Störrichtung entgegengesetzt angefahren.1 to 6, 1 designates a centrifugal speed limiter which cooperates with a safety gear 2 to prevent overspeeds of an elevator car A which are independent of the direction of travel. A console 3 arranged on the elevator car A guides a shaft 4 at right angles to a guide rail 6 arranged on a shaft wall 5. At the end of the shaft 4 on the shaft wall side a U-shaped frame 7 is arranged, which carries an impeller 8. Between bracket 3 and frame 7, a compression spring 9 is telescopically pushed over the shaft 4, so that the axially displaceable shaft 4 is biased towards the shaft wall, whereby the impeller 8 is pressed onto the free leg of the guide rail 6. A pair of release levers 10 is provided on each impeller side, which acts on a locking ring 11 in the event of a fault. The trigger levers 10, which are rotatably mounted on the impeller 8, rotate around the stationary locking ring 11, which is firmly connected to a two-armed actuating lever 12, on the impeller side during cabin travel and normal operation. The movement of the actuating lever 12 is transmitted on the one hand to a trigger arm 13 and on the other hand to an actuating rod 14, which in turn is connected to the trigger arm of the safety gear opposite. The trigger arm 13 running parallel to the guide rail 6 plunges into a wedge box 15 of the safety device 2. In order to reset the safety device, elevator car A is approached in the opposite direction after a malfunction.

Die an Drehzapfen 16 drehbar gelagerten Auslösehebel 10 bestehen aus einem ersten Schenkel 17 und einem zweiten Schenkel 18. Der erste Schenkel 17 endet mit einem sich abhängig von der Rotationsgeschwindigkeit radial bewegenden Zentrifugalgewicht 19, am Ende des zweiten Schenkels 18 ist eine Klinke 20 angeordnet, die im Störfall in eine der am Sperrkranz 11 angeordneten Einkerbungen 21 eingreift, wodurch dieser in eine Drehbewegung versetzt wird. Ein Auslösehebelpaar 10 ist mittels einem Ausgleichsglied 22 gelenkig verbunden, das die durch eine nicht dargestellte Feder erzeugte Vorspannkraft vom einen Auslösehebel 10 auf den anderen Auslösehebel 10 überträgt. Ein erster Arm 23 des an einer Radachse 24 angeordneten Betätigungshebels 12 weist am freien Ende einen Bolzen 25 auf, der in einen am geschwindigkeitsbegrenzerseitigen Ende des Auslösearms 13 angeordneten Langschlitz 26 eingreift. Ein zweiter Arm 27 des Betätigungshebels 12 überträgt an seinem Ende die im Störfall auftretende Rotationsbewegung des Sperrkranzes 11 auf die Betätigungsstange 14. Das vom U-förmigen Rahmen 7 getragene Laufrad 8 weist am Umfang eine im Querschnitt dem Profil des freien Schenkels der Führungsschiene 6 entsprechende Nut 28 auf, an der der von der Aufzugskabine A zurückgelegte Weg auf das Laufrad 8 übertragen wird.The release levers 10, which are rotatably mounted on pivot pins 16, consist of a first leg 17 and a second leg 18. The first leg 17 ends with a centrifugal weight 19 that moves radially depending on the rotational speed, and a pawl 20 is arranged at the end of the second leg 18 in the event of a malfunction engages in one of the notches 21 arranged on the locking ring 11, as a result of which this is set into a rotational movement. A pair of release levers 10 is connected in an articulated manner by means of a compensating member 22, which transfers the biasing force generated by a spring, not shown, from one release lever 10 to the other release lever 10. A first arm 23 of the actuating lever 12 arranged on a wheel axle 24 has at the free end a bolt 25 which engages in an elongated slot 26 arranged on the speed limiter end of the release arm 13. A second arm 27 of the actuating lever 12 transmits at its end the rotational movement of the locking ring 11 which occurs in the event of a fault onto the actuating rod 14. The impeller 8 carried by the U-shaped frame 7 has a circumferential cross section corresponding to the profile of the free leg of the guide rail 6 28 on which the path covered by the elevator car A is transmitted to the impeller 8.

Im Keilkasten 15 der Fangvorrichtung 2 sind je Führungsschienenseite ein Fangkeil 29 vorgesehen, der im Störfall je nach Störrichtung auf einer Bahn B oder C gleitet. Die Fangkeile 29 werden von an den Auslösearmen 13 fangkeilmittig angeordneten Auslösefingern 30 mittels Stellfedern 31 betätigt. Der vorgeschriebene Anhalteweg ist mit auf die Stellfedern 31 einwirkenden Abgleichschrauben 32 einstellbar.In the wedge box 15 of the safety device 2, a safety wedge 29 is provided on each guide rail side, which slides on a track B or C depending on the direction of the fault in the event of a fault. The catch wedges 29 are actuated by release fingers 30 arranged on the release arms 13 in the catch wedge center by means of actuating springs 31. The prescribed stopping distance can be adjusted with adjusting screws 32 acting on the actuating springs 31.

Claims (10)

1. Fangvorrichtung (2) mit an einer Kabine (A) angeordnetem Geschwindigkeitsbegrenzer (1) für Aufzüge, der ein von einer Führungsschiene (6) angetriebenes und von einem U-förmigen mittels einem Vorspannzylinder mit der Kabine (A) in Verbindung stehenden Rahmen (7) getragenes Laufrad (8) aufweist, an dem ein auf dem Fliehkraftprinzip beruhender Auslösemechanismus angeordnet ist, der bei Übergeschwindigkeiten der Kabine (A) in Abwärtsrichtung die Fangvorrichtung (2) betätigt, dadurch gekennzeichnet,
dass der U-förmige Rahmen (7) an einem achsial verschiebbaren Schaft (4) angeordnet ist, der von einer an der Kabine (A) angeordneten Konsole (3) geführt wird und
dass der Auslösemechanismus zur Verhinderung von Übergeschwindigkeiten in Abwärtsrichtung und in Aufwärtsrichtung Auslösehebel (10) aufweist, die bei Normalbetrieb um einen stillstehenden an einer Radachse (24) angeordneten Sperrkranz (11) rotieren, der in fester Verbindung mit einem Betätigungshebel (12) steht, an dem ein im Störfall zur Betätigung der Fangvorrichtung (2) vorgesehener Auslösearm (13) angreift.1. Safety gear (2) with a speed limiter (1) for elevators arranged on a car (A), which has a frame driven by a guide rail (6) and connected by a U-shaped frame to the car (A) by means of a preload cylinder ( 7) has a carried impeller (8) on which a trigger mechanism based on the centrifugal force principle is arranged, which actuates the safety device (2) in the downward direction when the cabin (A) is overspeed, characterized in that
that the U-shaped frame (7) is arranged on an axially displaceable shaft (4) which is guided by a bracket (3) arranged on the cabin (A) and
that the release mechanism for preventing overspeeds in the downward and upward direction has release levers (10) which, during normal operation, rotate about a stationary locking ring (11) arranged on a wheel axle (24) and in fixed connection with an actuating lever (12) which is activated by a trigger arm (13) provided in the event of a malfunction to actuate the safety device (2). 2. Fangvorrichtung (2) mit an einer Kabine (A) angeordnetem Geschwindigkeitsbegrenzer (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass zur Vorspannung des Laufrades (8) zwischen dem U-förmigen Rahmen (7) und der Konsole (3) eine teleskopartig am Schaft (4) angeordnete Druckfeder (9) vorgesehen ist.2. Safety gear (2) with a speed limiter (1) arranged on a cabin (A) according to claim 1,
characterized,
that a compression spring (9) arranged telescopically on the shaft (4) is provided for prestressing the impeller (8) between the U-shaped frame (7) and the bracket (3). 3. Fangvorrichtung (2) mit an einer Kabine (A) angeordnetem Geschwindigkeitsbegrenzer (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass je Laufradseite ein über ein Ausgleichsglied (22) verbundenes Paar Auslösehebel (10) vorgesehen ist.3. safety device (2) with a speed limiter (1) arranged on a cabin (A) according to claim 1,
characterized,
that a pair of release levers (10) is provided on each impeller side via a compensating member (22). 4. Fangvorrichtung (2) mit an einer Kabine (A) angeordnetem Geschwindigkeitsbegrenzer (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass je Laufradseite ein Sperrkranz (11) mit am Umfang angeordneten Einkerbungen (21) vorgesehen ist.4. Safety gear (2) with a speed limiter (1) arranged on a cabin (A) according to claim 1,
characterized,
that a locking ring (11) with notches (21) arranged on the circumference is provided on each impeller side. 5. Fangvorrichtung (2) mit an einer Kabine (A) angeordnetem Geschwindigkeitsbegrenzer (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass auf der einen Seite des Laufrades (8) ein mit dem Sperrkranz (11) fest verbundener Betätigungshebel (12) mit einem ersten Arm (23) und mit einem zweiten Arm (27) vorgesehen ist und
dass auf der anderen Seite des Laufrades (8) ein mit dem Sperrkranz (11) fest verbundener Betätigungshebel (12) mit einem ersten Arm (23) vorgesehen ist.5. Safety gear (2) with a speed limiter (1) arranged on a cabin (A) according to claim 1,
characterized,
that an actuating lever (12) with a first arm (23) and with a second arm (27) is provided on one side of the impeller (8) and is firmly connected to the locking ring (11) and
that on the other side of the impeller (8) an actuating lever (12) with a first arm (23) is provided which is firmly connected to the locking ring (11). 6. Fangvorrichtung (2) mit an einer Kabine (A) angeordnetem Geschwindigkeitsbegrenzer (1) nach Anspruch 3,
dadurch gekennzeichnet,
dass der an einem Drehzapfen (16) gelagerte Auslösehebel (10) an einem ersten Schenkel (17) ein Zentrifugalgewicht (19) und an einem zweiten Schenkel (18) eine Klinke (20) aufweist, die unter Einwirkung der am Zentrifugalgewicht (19) angreifenden Fliehkraft mit zunehmender Rotationsgeschwindigkeit in Richtung Sperrkranz (11) bewegt wird.6. safety device (2) with a speed limiter (1) arranged on a cabin (A) according to claim 3,
characterized,
that the release lever (10) mounted on a pivot (16) has a centrifugal weight (19) on a first leg (17) and a pawl (20) on a second leg (18), which acts under the action of the centrifugal weight (19) Centrifugal force is moved towards the locking ring (11) with increasing rotational speed. 7. Fangvorrichtung (2) mit an einer Kabine (A) angeordnetem Geschwindigkeitsbegrenzer (1) nach Anspruch 5,
dadurch gekennzeichnet,
dass am Ende des ersten Armes (23) ein Bolzen (25) angeordnet ist, der in einen am geschwindigkeitsbegrenzerseitigen Ende des Auslösearmes (13) angeordneten Langschlitz (26) eingreift.7. safety gear (2) with a speed limiter (1) arranged on a cabin (A) according to claim 5,
characterized,
that at the end of the first arm (23) there is a bolt (25) which engages in an elongated slot (26) arranged at the speed limiter end of the release arm (13). 8. Fangvorrichtung (2) mit an einer Kabine (A) angeordnetem Geschwindigkeitsbegrenzer (1) nach Anspruch 5,
dadurch gekennzeichnet,
dass am Ende des zweiten Armes (27) eine zur Übertragung der Auslösebewegung auf die gegenüberliegende Fangvorrichtung vorgesehene Betätigungsstange (14) angreift.8. safety device (2) with a speed limiter (1) arranged on a cabin (A) according to claim 5,
characterized,
that at the end of the second arm (27) engages an actuating rod (14) provided for transmitting the release movement to the opposite safety device. 9. Fangvorrichtung (2) mit an einer Kabine (A) angeordnetem Geschwindigkeitsbegrenzer (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass der Auslösearm (13) am in einen Keilkasten (15) eintauchenden Teil einen Auslösefinger (30) aufweist, der im Störfall einen Fangkeil (29) je nach Störrichtung entlang einer Bahn (B;C) bewegt.9. safety device (2) with a speed limiter (1) arranged on a cabin (A) according to claim 1,
characterized,
that the trigger arm (13) on the part immersed in a wedge box (15) has a trigger finger (30) which moves a catch wedge (29) along a path (B; C) depending on the direction of the fault. 10. Fangvorrichtung (2) mit an einer Kabine (A) angeordnetem Geschwindigkeitsbegrenzer (1)
nach Anspruch 9,
dadurch gekennzeichnet,
dass für den Abgleich des Anhalteweges am Fangkeil (29) am Auslösefinger (30) angreifende Stellfedern (31) vorgesehen sind, die mittels Abgleichschrauben (32) vorspannbar sind.10. Safety gear (2) with a speed limiter (1) arranged on a cabin (A)
according to claim 9,
characterized,
that for the adjustment of the stopping distance on the catch wedge (29) on the release finger (30) engaging actuating springs (31) are provided, which can be preloaded by means of adjustment screws (32).
EP91113768A 1990-09-13 1991-08-16 Safety catch for an elevator with a speed governor attached to the cabin Expired - Lifetime EP0475114B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/582,428 US5065845A (en) 1990-09-13 1990-09-13 Speed governor safety device for stopping an elevator car
US582428 1990-09-13

Publications (2)

Publication Number Publication Date
EP0475114A1 true EP0475114A1 (en) 1992-03-18
EP0475114B1 EP0475114B1 (en) 1996-03-27

Family

ID=24329115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113768A Expired - Lifetime EP0475114B1 (en) 1990-09-13 1991-08-16 Safety catch for an elevator with a speed governor attached to the cabin

Country Status (17)

Country Link
US (1) US5065845A (en)
EP (1) EP0475114B1 (en)
JP (1) JP2863354B2 (en)
CN (1) CN1023308C (en)
AT (1) ATE136001T1 (en)
AU (1) AU638866B2 (en)
BR (1) BR9103946A (en)
CA (1) CA2049510A1 (en)
DE (1) DE59107609D1 (en)
DK (1) DK0475114T3 (en)
ES (1) ES2087934T3 (en)
FI (1) FI92312C (en)
HK (1) HK85997A (en)
HU (1) HU207260B (en)
MX (1) MX9101017A (en)
NO (1) NO304181B1 (en)
ZA (1) ZA916773B (en)

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EP2687474A1 (en) 2005-07-08 2014-01-22 Orona, S. Coop. Mechanism for detecting overspeed in lifting apparatuses, overspeed prevention safety actuation device and lifting apparatus

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AU638866B2 (en) * 1990-09-13 1993-07-08 Inventio Ag Speed governor actuated safety device for stopping an elevator car
EP2687474A1 (en) 2005-07-08 2014-01-22 Orona, S. Coop. Mechanism for detecting overspeed in lifting apparatuses, overspeed prevention safety actuation device and lifting apparatus

Also Published As

Publication number Publication date
HK85997A (en) 1997-06-27
FI914211A0 (en) 1991-09-06
CA2049510A1 (en) 1992-03-14
EP0475114B1 (en) 1996-03-27
AU638866B2 (en) 1993-07-08
CN1023308C (en) 1993-12-29
DE59107609D1 (en) 1996-05-02
JP2863354B2 (en) 1999-03-03
FI92312C (en) 1994-10-25
US5065845A (en) 1991-11-19
ES2087934T3 (en) 1996-08-01
NO304181B1 (en) 1998-11-09
JPH04246079A (en) 1992-09-02
FI914211A (en) 1992-03-14
CN1061945A (en) 1992-06-17
ATE136001T1 (en) 1996-04-15
BR9103946A (en) 1992-05-26
HUT59642A (en) 1992-06-29
HU912958D0 (en) 1992-01-28
ZA916773B (en) 1992-05-27
MX9101017A (en) 1992-05-04
AU8381791A (en) 1992-03-19
NO913556D0 (en) 1991-09-10
FI92312B (en) 1994-07-15
NO913556L (en) 1992-03-16
DK0475114T3 (en) 1996-07-08
HU207260B (en) 1993-03-29

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