EP0475114B1 - 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 PDFInfo
- Publication number
- EP0475114B1 EP0475114B1 EP91113768A EP91113768A EP0475114B1 EP 0475114 B1 EP0475114 B1 EP 0475114B1 EP 91113768 A EP91113768 A EP 91113768A EP 91113768 A EP91113768 A EP 91113768A EP 0475114 B1 EP0475114 B1 EP 0475114B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cage
- arresting
- arm
- trigger
- speed limiter
- 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 - Lifetime
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- 230000006835 compression Effects 0.000 claims abstract description 3
- 238000007906 compression Methods 0.000 claims abstract description 3
- 230000000903 blocking effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
-
- 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 shaft, on which a release mechanism based on the centrifugal force principle is arranged , which actuates safety chocks of the safety gear if the cabin speed is too high.
- a safety device with a speed limiter arranged on an elevator car which prevents excessive speeds of the elevator car when traveling downhill.
- the speed limiter essentially consists of a spring cylinder which is rotatably mounted on the elevator car in the direction of travel and which rests on a support at the non-supported end.
- a fork-shaped frame is arranged which carries a roller cylinder at 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 a groove on the circumference 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 outwards 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 trigger mechanism arranged inside the rolling cylinder, which causes high manufacturing and assembly costs.
- 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.
- a breakage of a spring holding the weights which would have been possible for decades of operation, would immediately lead to incorrect triggering and blocking of the safe cabin in the shaft.
- EP-A-0 279 144 discloses a safety brake with a rotational direction in each case, a brake ring with a brake lining, a cam, a toothed ring with teeth and a two-armed lever, on which a roller and a pawl are arranged at one end.
- the brake ring, cam disc and gear ring are attached to the shaft to be monitored.
- a release spring engaging the lever presses the roller onto the cam disc.
- the teeth of one toothed ring are directed opposite to the teeth of the other toothed ring.
- both rollers When a predetermined speed of the shaft is exceeded, both rollers are thrown away from the cams against the force of the release springs and the pawl which is effective for the respective direction of rotation engages in a tooth of the toothed ring. This is stopped suddenly and the brake pad causes the brake ring and thus the shaft to brake slowly.
- the non-effective pawl on the other side slides ineffectively over the teeth and has no possibility to snap into place.
- a disadvantage of the known device lies in the mechanically complicated and complex design of the triggering device.
- speed limiters with such release devices would react much too sluggishly because of the slow braking of the shaft.
- Safety devices must be triggered suddenly for the safety of the passengers, which would only be possible with a fixed connection to the barrier ring.
- 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 a mechanically simple and reliable manner such that overspeeds of the cabin in the downward direction and in the upward direction are avoidable.
- 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 only a few moving parts are involved in the triggering process, and that due to the simple mechanical structure, a complete factory assembly is possible, which 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 denotes a centrifugal speed limiter, which cooperates with a safety device 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, which carries an impeller 8, is arranged on the shaft wall end of the shaft 4. 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 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 opposite safety gear.
- the trigger arm 13 running parallel to the guide rail 6 plunges into a wedge box 15 of the safety device 2.
- the elevator car A is started in the opposite direction after a fault.
- 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 rotary 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.
- 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.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Types And Forms Of Lifts (AREA)
- Jib Cranes (AREA)
- Braking Arrangements (AREA)
- Cage And Drive Apparatuses For Elevators (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)
Abstract
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 eines Schaftes mit der Kabine in Verbindung stehenden Rahmen getragenes Laufrad aufweist, an dem ein auf dem Fliehkraftprinzip beruhender Auslösemechanismus angeordnet ist, der bei Übergeschwindigkeit der Kabine Fangkeile der 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 shaft, on which a release mechanism based on the centrifugal force principle is arranged , which actuates safety chocks of the safety gear if the cabin speed is too high.
Aus der Patentschrift US-A-4 662 481 ist eine Fangvorrichtung mit einem auf einer Aufzugskabine angeordneten Geschwindigkeitsbegrenzer bekannt, die überhöhte 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 an 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 eines Begrenzerseils 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 excessive speeds of the elevator car when traveling downhill. The speed limiter essentially consists of a spring cylinder which is rotatably mounted on the elevator car in the direction of travel and 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 at 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 a groove on the circumference 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. One located inside the roller cylinder Trigger mechanism with centrifugal weights monitors the rotation speed of the roller cylinder, which is proportional to the cabin speed. If the cabin is overspeed in the downward direction, the release mechanism blocks the rolling 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 outwards 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, der hohe Herstellungs- und Montagekosten verursacht. 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 sichergestellt ist. Andererseits würde ein bei oft jahrzehntelangem Betrieb möglicher Bruch einer die Gewichte haltenden Feder unmittelbar zu einer Fehlauslösung und Blockieren der betriebssicheren Kabine im Schacht führen.A disadvantage of the known device lies in the complicated mechanical structure of the trigger mechanism arranged inside the rolling cylinder, which causes high manufacturing and assembly costs. 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 ensured with periodically cleaned guide rails. On the other hand, a breakage of a spring holding the weights, which would have been possible for decades of operation, would immediately lead to incorrect triggering and blocking of the safe cabin in the shaft.
Die Offenlegungsschrift EP-A-0 279 144 offenbart eine Fangbremse mit je Drehrichtung einem Bremsring mit Bremsbelag, einer Kurvenscheibe, einem Zahnring mit Zähnen und einem zweiarmigen Hebel, an dem einenends eine Laufrolle und anderenends eine Sperrklinke angeordnet ist. Bremsring, Kurvenscheibe und Zahnring sind an der zu überwachenden Welle befestigt. Eine am Hebel angreifende Auslösefeder presst die Laufrolle auf die Kurvenscheibe. Die Zähne des einen Zahnringes sind gegenüber den Zähnen des anderen Zahnringes entgegengesetzt gerichtet. Beim Überschreiten einer vorgegebenen Drehzahl der Welle werden beide Laufrollen entgegen der Kraft der Auslösefedern von den Kurvenscheiben weggeschleudert und die für die jeweilige Drehrichtung wirksame Sperrklinke rastet in einen Zahn des Zahnringes ein. Dieser wird schlagartig angehalten und der Bremsbelag bewirkt ein langsames Bremsen des Bremsringes und damit der Welle. Die nicht wirksame Sperrklinke der anderen Seite gleitet wirkungslos über die Zähne und hat keine Möglichkeit zum Einrasten.The published patent application EP-A-0 279 144 discloses a safety brake with a rotational direction in each case, a brake ring with a brake lining, a cam, a toothed ring with teeth and a two-armed lever, on which a roller and a pawl are arranged at one end. The brake ring, cam disc and gear ring are attached to the shaft to be monitored. A release spring engaging the lever presses the roller onto the cam disc. The teeth of one toothed ring are directed opposite to the teeth of the other toothed ring. When a predetermined speed of the shaft is exceeded, both rollers are thrown away from the cams against the force of the release springs and the pawl which is effective for the respective direction of rotation engages in a tooth of the toothed ring. This is stopped suddenly and the brake pad causes the brake ring and thus the shaft to brake slowly. The non-effective pawl on the other side slides ineffectively over the teeth and has no possibility to snap into place.
Ein Nachteil der bekannten Einrichtung liegt in der mechanisch komplizierten und aufwendigen Ausgestaltung der Auslöseeinrichtung. Ausserdem würden einerseits Geschwindigkeitsbegrenzer mit solchen Auslöseeinrichtungen wegen der langsamen Abbremsung der Welle viel zu träge reagieren. Fangvorrichtungen müssen zur Sicherheit der Fahrgäste schlagartig ausgelöst werden, was nur mit einer festen Verbindung zum Sperrkranz möglich wäre.A disadvantage of the known device lies in the mechanically complicated and complex design of the triggering device. In addition, speed limiters with such release devices would react much too sluggishly because of the slow braking of the shaft. Safety devices must be triggered suddenly for the safety of the passengers, which would only be possible with a fixed connection to the barrier ring.
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 in mechanisch einfacher und zuverlässiger Weise 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 a mechanically simple and reliable manner such that overspeeds of the cabin in the downward direction and in the upward direction are avoidable.
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 nur wenige bewegte Teile am Auslösevorgang beteiligt sind, dass bedingt durch den einfachen mechanischen Aufbau eine vollständige Fabrikmontage möglich ist, was jegliche Vorortmontage entbehrlich 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 only a few moving parts are involved in the triggering process, and that due to the simple mechanical structure, a complete factory assembly is possible, which 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.
- Fig. 1
- A schematic representation of a safety device with a speed limiter arranged on the cabin in side view,
- Fig. 2
- 2 shows a top 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 denotes a centrifugal speed limiter, which cooperates with a
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
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
Claims (8)
- Arresting device (2) with a speed limiter (1) for lifts, which is arranged at a cage (A) and displays a runner (8), which is carried by a U-shaped frame (7) standing in connection with the cage (A) by means of a shaft (4) and driven by a guide rail (6) and at which a trigger mechanism based on the centrifugal force principle is arranged with trigger levers (10) connected by means of an equalising member, wherein the trigger mechanism actuates arresting wedges (29) of the arresting device (2) in the case of excess speed of the cage (A), characterised thereby, that a pair of two-armed trigger levers (10), which are borne to be rotatable at the runner (8) and display a centrifugal weight (19), which moves outwardly in the case of increasing speed, at a first arm (17) and a pawl (20), which moves inwardly in the case of increasing speed, at a second arm (18), are arranged at each runner side for the prevention of excess speeds in downward direction and in upward direction, that a ratched wheel (11), about which the trigger levers (10) rotate and which is stationary relative to the runner (8) in the case of normal operation, is arranged for each runner side at a wheel axle (24), wherein the pawls (20) engage into the ratchet wheel (11) the case of excess speed of the cage (A) and that an actuating lever (12), which stands in firm connection with the ratchet wheel (11) and at which engages a trigger arm (13) provided for the actuation of the arresting wedges (29) of the arresting device (2), is provided for each runner side.
- Arresting device (2) with a speed limiter (1), which is arranged at a cage (A), according to claim 1, characterised thereby, that the shaft (4) carrying the U-shaped frame (7) is guided by a bracket (3) arranged at the cage (A) and that a compression spring (9), which winds around the shaft (4), is provided between the U-shaped frame (7) and bracket (3) for the biassing of the runner (8).
- Arresting device (2) with a speed limiter (1), which is arranged at a cage (A), according to claim 1, characterised thereby, that an actuating lever (12), which is firmly connected with the ratchet wheel (11), with a first arm (23) and a second arm (27), at which engages an actuating rod (14) provided for the transmission of the triggering movement to a second arresting device, is provided on the one side of the runner (8).
- Arresting device (2) with a speed limiter (1), which is arranged at a cage (A), according to claim 3, characterised thereby, that a pin (25), which engages into a longitudinal slot (26) arranged at the speed limiter side end of the trigger arm (13), is arranged at the end of the first arm (23).
- Arresting device (2) with a speed limiter (1), which is arranged at a cage (A), according to claim 1, characterised thereby, that a wedge box (15) is provided with a respective track (B) for the blocking of the lift cage (A) in downward direction and with a respective track (C) for the blocking of the lift cage (A) in upward direction for each guide rail side.
- Arresting device (2) with a speed limiter (1), which is arranged at a cage (A), according to claim 5, characterised thereby, that a respective arresting wedge (29), which slides along the track (B) for the blocking of the lift cage (A) in downward direction and along the track (C) for the blocking of the lift cage (A), is provided for each guide rail side.
- Arresting device (2) with a speed limiter (1), which is arranged at a cage (A), according to claim 6, characterised thereby, that the trigger arm (13) at the part entering the wedge box (15) displays a trigger finger (30), which moves the arresting wedge (29) along the track (B; C).
- Arresting device (2) with a speed limiter (1), which is arranged at a cage (A), according to claim 7, characterised thereby, that setting springs (31), which engage at the trigger finger (30) at the arresting wedge (29) and are biassable by means of adjusting screws (32), are provided for the adjustment of the stopping path of the lift cage (A).
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 EP0475114A1 (en) | 1992-03-18 |
| EP0475114B1 true 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10241160B4 (en) | 2001-09-06 | 2018-12-27 | Otis Elevator Co. | Elevator monitoring device |
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| US5065845A (en) * | 1990-09-13 | 1991-11-19 | Pearson David B | Speed governor safety device for stopping an elevator car |
| JPH04365771A (en) * | 1991-06-13 | 1992-12-17 | Toshiba Corp | Elevator |
| ES2072212B1 (en) * | 1993-08-18 | 1998-03-01 | Navarro Jose Asensio | AUTOMATIC BRAKE STARTING MECHANISM FOR USE IN ELEVATORS IN CASE OF ACCIDENT. |
| US5495919A (en) * | 1994-04-25 | 1996-03-05 | Otis Elevator Company | Safety brake apparatus for an elevator car or counterweight |
| EP0787676A1 (en) * | 1996-01-31 | 1997-08-06 | Inventio Ag | Safety device |
| US5927440A (en) * | 1996-09-11 | 1999-07-27 | Freeman; Glen D. | Mobile hoist system and method |
| KR100279363B1 (en) | 1998-12-12 | 2001-01-15 | 장병우 | Emergency stop of elevator |
| US6161653A (en) * | 1998-12-22 | 2000-12-19 | Otis Elevator Company | Ropeless governor mechanism for an elevator car |
| US6253879B1 (en) | 1998-12-22 | 2001-07-03 | Otis Elevator Company | Apparatus and method of determining overspeed of an elevator car |
| US6173813B1 (en) | 1998-12-23 | 2001-01-16 | Otis Elevator Company | Electronic control for an elevator braking system |
| US6170614B1 (en) | 1998-12-29 | 2001-01-09 | Otis Elevator Company | Electronic overspeed governor for elevators |
| JP4109384B2 (en) * | 1999-05-27 | 2008-07-02 | 三菱電機株式会社 | Elevator governor |
| US6981575B2 (en) * | 1999-09-27 | 2006-01-03 | Otis Elevator Company | Concrete rail safety device for an elevator car |
| US6296080B1 (en) * | 2000-06-21 | 2001-10-02 | Otis Elevator Company | Variable traction mechanism for rotary actuated overspeed safety device |
| KR100382973B1 (en) * | 2000-11-16 | 2003-05-09 | 현대엘리베이터주식회사 | Governor of elevator |
| KR100382974B1 (en) * | 2000-12-27 | 2003-05-09 | 현대엘리베이터주식회사 | Governor of a lift |
| KR100468092B1 (en) * | 2001-05-09 | 2005-01-26 | 현대엘리베이터주식회사 | Governor of elevator |
| CN1313346C (en) * | 2001-06-29 | 2007-05-02 | 三菱电机株式会社 | Elevator emergency brake device |
| US7073632B2 (en) * | 2003-05-27 | 2006-07-11 | Invento Ag | Safety system for restraining movement of elevator car when car doors are open |
| FI118850B (en) * | 2003-11-24 | 2008-04-15 | Kone Corp | Elevator and procedure by which the elevator car is locked in place |
| ES2264897B1 (en) | 2005-07-08 | 2007-11-01 | Orona, S. Coop. | OVERVOLTAGE DETECTOR MECHANISM IN LIFTING EQUIPMENT, SAFETY DEVICE FOR ACTION AGAINST OVERVOLTAGE AND LIFTING DEVICE. |
| EP2020397B1 (en) * | 2007-08-03 | 2010-06-23 | Thyssenkrupp Elevator Manufacturing Spain S.L. | Apparatus and system for detecting elevator car overspeed |
| JP5386377B2 (en) * | 2010-01-05 | 2014-01-15 | 株式会社日立製作所 | Elevator equipment |
| CN102514996A (en) * | 2011-12-30 | 2012-06-27 | 江南嘉捷电梯股份有限公司 | Elevator speed limiting device |
| JP5771746B2 (en) * | 2012-05-30 | 2015-09-02 | 株式会社日立製作所 | Elevator equipment |
| ES2483816B1 (en) | 2013-02-07 | 2015-12-18 | S.A. Sistel | Positioning control system, speed limitation and uncontrolled cabin movements, or counterweight, of an elevator. |
| CN103287949B (en) * | 2013-06-17 | 2015-08-12 | 柳雪春 | Straight top type heavy duty lift work platform |
| CN103434909A (en) * | 2013-08-12 | 2013-12-11 | 谭锦泉 | Speed limiting trigger |
| CN103588058B (en) * | 2013-10-30 | 2016-01-20 | 河北东方富达机械有限公司 | Rope wheel brake |
| CN103523629A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-less speed limiter |
| CN103523628A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-free speed limiter of single brake pressing-plate device |
| EP2913287B1 (en) | 2014-02-26 | 2018-01-03 | Otis Elevator Company | Governor for controlling the speed of a hoisted object relative to a guide member |
| CN105197719A (en) * | 2014-08-13 | 2015-12-30 | 爱默生电梯有限公司 | Safety tongs and use method thereof |
| CN107428501B (en) * | 2015-03-12 | 2019-12-06 | 奥的斯电梯公司 | Movable car mounted overspeed governor |
| CN104891301B (en) * | 2015-05-29 | 2017-03-22 | 杭州安尚无障碍设备开发有限公司 | Speed limiter |
| KR20180051605A (en) * | 2015-10-13 | 2018-05-16 | 가부시키가이샤 히타치세이사쿠쇼 | Elevator device |
| CN107021395B (en) * | 2016-01-04 | 2020-11-10 | 奥的斯电梯公司 | Elevator overspeed governor with automatic reset |
| CN107673159B (en) * | 2016-08-01 | 2020-09-08 | 奥的斯电梯公司 | Speed limiter of elevator |
| CN107758470B (en) * | 2016-08-18 | 2020-06-09 | 奥的斯电梯公司 | Tensioning device for compensating wheel, compensating wheel and elevator |
| CN106829682A (en) * | 2017-02-20 | 2017-06-13 | 宁波奥德普电梯部件有限公司 | A kind of mechanical trigger mechanism |
| CN109775507B (en) * | 2019-03-14 | 2020-10-16 | 日立电梯（中国）有限公司 | Elevator, overspeed protection system and trigger device thereof |
| CN110821989B (en) * | 2019-11-11 | 2020-11-06 | 中国电子科技集团公司第三十八研究所 | Anti-falling device of elevator |
| US20220106161A1 (en) * | 2020-10-01 | 2022-04-07 | Otis Elevator Company | Roller speed sensor with magnets and sensors |
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| US3250348A (en) * | 1964-07-07 | 1966-05-10 | Universal Mfg Co | Overspeed brake for elevator cage |
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| FR2332220A1 (en) * | 1975-11-24 | 1977-06-17 | Holler Armand | Lift and hoist safety device - has brake shoe assembly secured together by screwed rods with release lever |
| DE2753079A1 (en) * | 1977-11-29 | 1979-05-31 | Elba Werk Maschinen Gmbh & Co | CATCHING DEVICE FOR ELEVATORS, IN PARTICULAR SUCH WITH RACK DRIVE |
| AT376952B (en) * | 1983-03-21 | 1985-01-25 | Otis Elevator Co | BRAKE CONTROL DEVICE |
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| US4662481A (en) * | 1986-03-14 | 1987-05-05 | Westinghouse Electric Corp. | Elevator system |
| DE3644781A1 (en) * | 1986-12-23 | 1988-07-14 | Mannesmann Ag | FAN BRAKE |
| US5065845A (en) * | 1990-09-13 | 1991-11-19 | Pearson David B | Speed governor safety device for stopping an elevator car |
-
1990
- 1990-09-13 US US07/582,428 patent/US5065845A/en not_active Expired - Fee Related
-
1991
- 1991-08-16 EP EP91113768A patent/EP0475114B1/en not_active Expired - Lifetime
- 1991-08-16 DE DE59107609T patent/DE59107609D1/en not_active Expired - Fee Related
- 1991-08-16 ES ES91113768T patent/ES2087934T3/en not_active Expired - Lifetime
- 1991-08-16 AT AT91113768T patent/ATE136001T1/en not_active IP Right Cessation
- 1991-08-16 DK DK91113768.5T patent/DK0475114T3/en active
- 1991-08-20 CA CA002049510A patent/CA2049510A1/en not_active Abandoned
- 1991-08-27 ZA ZA916773A patent/ZA916773B/en unknown
- 1991-09-06 FI FI914211A patent/FI92312C/en active
- 1991-09-10 NO NO913556A patent/NO304181B1/en unknown
- 1991-09-10 CN CN91108807A patent/CN1023308C/en not_active Expired - Fee Related
- 1991-09-10 MX MX9101017A patent/MX9101017A/en not_active IP Right Cessation
- 1991-09-11 JP JP3231927A patent/JP2863354B2/en not_active Expired - Lifetime
- 1991-09-12 AU AU83817/91A patent/AU638866B2/en not_active Ceased
- 1991-09-13 BR BR919103946A patent/BR9103946A/en not_active IP Right Cessation
- 1991-09-13 HU HU912958A patent/HU207260B/en not_active IP Right Cessation
-
1997
- 1997-06-19 HK HK85997A patent/HK85997A/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10241160B4 (en) | 2001-09-06 | 2018-12-27 | Otis Elevator Co. | Elevator monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| MX9101017A (en) | 1992-05-04 |
| HUT59642A (en) | 1992-06-29 |
| FI92312C (en) | 1994-10-25 |
| NO913556L (en) | 1992-03-16 |
| DE59107609D1 (en) | 1996-05-02 |
| FI914211A (en) | 1992-03-14 |
| NO304181B1 (en) | 1998-11-09 |
| ATE136001T1 (en) | 1996-04-15 |
| HK85997A (en) | 1997-06-27 |
| ZA916773B (en) | 1992-05-27 |
| AU638866B2 (en) | 1993-07-08 |
| HU912958D0 (en) | 1992-01-28 |
| NO913556D0 (en) | 1991-09-10 |
| CN1061945A (en) | 1992-06-17 |
| CA2049510A1 (en) | 1992-03-14 |
| US5065845A (en) | 1991-11-19 |
| FI92312B (en) | 1994-07-15 |
| AU8381791A (en) | 1992-03-19 |
| ES2087934T3 (en) | 1996-08-01 |
| JPH04246079A (en) | 1992-09-02 |
| JP2863354B2 (en) | 1999-03-03 |
| CN1023308C (en) | 1993-12-29 |
| DK0475114T3 (en) | 1996-07-08 |
| EP0475114A1 (en) | 1992-03-18 |
| FI914211A0 (en) | 1991-09-06 |
| BR9103946A (en) | 1992-05-26 |
| HU207260B (en) | 1993-03-29 |
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