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EP2920101B1 - Lift with a safety brake - Google Patents

Lift with a safety brake Download PDF

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Publication number
EP2920101B1
EP2920101B1 EP13802541.6A EP13802541A EP2920101B1 EP 2920101 B1 EP2920101 B1 EP 2920101B1 EP 13802541 A EP13802541 A EP 13802541A EP 2920101 B1 EP2920101 B1 EP 2920101B1
Authority
EP
European Patent Office
Prior art keywords
brake
lift
articulated arm
safety
brake body
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.)
Active
Application number
EP13802541.6A
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German (de)
French (fr)
Other versions
EP2920101A1 (en
Inventor
Stefan Hugel
Daniel Fischer
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Inventio AG
Original Assignee
Inventio AG
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Publication date
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Priority to EP13802541.6A priority Critical patent/EP2920101B1/en
Publication of EP2920101A1 publication Critical patent/EP2920101A1/en
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Publication of EP2920101B1 publication Critical patent/EP2920101B1/en
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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
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • 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
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures

Definitions

  • the invention relates to an elevator with a safety brake, in particular an electrically releasable safety brake, which can prevent a possible crash of a car in a dangerous operating state of the elevator.
  • a traction drive is composed at least of a motor, a traction sheave and a traction means, such as a rope or belt.
  • the motor drives the traction sheave via a shaft.
  • the traction sheave transmits traction to the traction means by means of frictional forces.
  • the traction means are a cab and a counterweight that balances the weight of the cab suspended.
  • a hydraulic drive comprises at least a hydraulic cylinder and a hydraulic piston. In the hydraulic cylinder, a working fluid is compressed, which converts the hydraulic piston depending on the built-up pressure in a vertical upward or downward movement. A mounted on the piston cab is moved accordingly.
  • the European safety standard EN-81 requires the use of a safety brake or a so-called safety brake.
  • a safety brake is mounted on the cab and can save the cab from a fatal crash in the event of a drive failure such as a tractional rupture or a rapid pressure drop in the hydraulic cylinder.
  • the safety brake is traditionally connected to a mechanical speed limiter. This speed limiter triggers the safety brake in the event of an overspeed, the safety brake builds up a braking force on the guide rails and thus brings the car to a safe stop.
  • the patent EP 1 400 476 A1 shows, for example, such an electronically triggered safety brake.
  • This safety brake can be triggered by a solenoid controlled by the overspeed governor and must be fail-safe actuated. Therefore, the safety brake is held by the electric motor against a spring-biased lever arm in a rest position. In the event of a power failure, power to the solenoid is cut off and the energy stored in the spring is released. Consequently, the safety brake is triggered.
  • safety brake is characterized by a high trip safety. However, this is associated with a constantly energized at rest, solenoid to hold the safety brake against a preloaded spring in a rest position.
  • the object of the present invention is to develop an electronically releasable safety brake, which identifies a low energy requirement even when at rest.
  • an elevator with a car which is guided on guide rails, and with a safety brake which is arranged on the car and which is designed to exert a braking force on the guide rails in the event of non-compliance with a safety criterion.
  • the safety brake comprises a brake housing which has a wedge-shaped opening in which at least part of a guide rail is insertable, a brake body which is insertable in the wedge-shaped opening between a wedge-shaped opening defining surface of the brake housing and a guide surface of the guide rail Activation mechanism, via which an activation force is transferable to the brake body and over which the brake body can be pressed against the limiting surface and guide surface, and a release mechanism which is directly or indirectly connected to the brake body and holds the brake body against the activation force in a rest position.
  • the elevator is characterized in that the release mechanism has at least one articulated arm, which can be brought into an extended position and a folded position, the articulated arm in the extended position holding the brake body in the rest position and in the folded position, the activation force for a Transmission on the brake body releases.
  • the advantage of the invention is that by means of the articulated arm, the safety brake can be kept against a relatively high activation force with little energy in a rest position.
  • the release mechanism for the release of the activation force also requires little energy, since the articulated arm is easily brought from its extended position with the application of a small lateral force in a kinked position.
  • the release mechanism has an adjustment mechanism connected to the articulated arm.
  • the adjusting mechanism is designed to bend the articulated arm from its extended position to its kinked position.
  • the adjusting mechanism has an electric drive, in particular a solenoid or linear motor of the like. This drive is controlled to bring the articulated arm of the stretched position in the folded position.
  • the adjusting mechanism is connected to a deflectable joint of the articulated arm.
  • a particularly simple connection to the actuating mechanism can be created at the joint and secondly, the force that acts upon the force of rotation is particularly small when the force is applied to the joint because of the maximum utilization of the lever effects.
  • the activation mechanism has a lever arm, which is operatively connected to the brake body and transmits the activation force to the brake body.
  • a lever arm which is operatively connected to the brake body and transmits the activation force to the brake body.
  • the ratio between the activation force and the structure of the braking force can be adjusted particularly easily and reliably.
  • the lever arm is connected to the articulated arm in such a way that, in its extended position, the articulated arm holds the lever arm against the activation force in the rest position.
  • the lever arm is connected to a prestressable spring, which pretensioned transmits the activation force to the lever arm.
  • the pen is a special one low-cost component that can store the activation force over long periods of time and delivers reliably when needed.
  • a longitudinal axis of the articulated arm and a longitudinal axis of the spring are aligned with each other.
  • the release mechanism is controllable by a safety device, wherein the safety device monitors the safety criterion and, if the safety criterion is not met, controls the release mechanism to such an extent that the activation force can be released for transmission to the brake body.
  • the safety criterion is a car speed, a fluid operating pressure of a hydraulic drive or a state of a suspension means on which the car is suspended.
  • the brake body is designed as a roller body or wedge.
  • Such brake bodies are reliably wedged between the limiting surface of the brake housing and the guide surface of a guide rail and accordingly exert a sufficient braking force on the guide rail in each case.
  • FIG. 1 shows an embodiment of the elevator 10 with a car 11.
  • the car 11 is in a shaft 14 along a roadway, which is defined by guide rails 12, movable.
  • the elevator 10 has a hydraulic drive.
  • only one hydraulic piston 13 thereof is visible. Not visible is a hydraulic cylinder in which the hydraulic piston 13 is guided and which moves the hydraulic piston 13 vertically up or down.
  • the cabin 11 is equipped at the bottom with two safety brakes 1.
  • the elevator 10 can be equipped with a traction drive as an alternative to the hydraulic drive, which has traction means on which the car 11 and a counterweight are suspended, and a motor which has a traction drive is in operative contact with the traction means via a traction sheave.
  • traction means ropes, belts or the like can be used.
  • the safety brake 1 is shown in a rest position.
  • the safety brake comprises a brake housing 2, a brake body 3, an activation mechanism 4 and a release mechanism 5.
  • the brake housing 2 has an opening 20 in which at least part of a guide rail 12 can be inserted.
  • the guide rail 12 is made as a T-profile.
  • the guide rail 12 may be designed as a U-profile or other suitable profile shape.
  • the cab 11 facing the end flange of the guide rail 12 is inserted into the opening 20 of the brake housing 2.
  • the opening 20 is delimited on one side by a first surface extending parallel to the guide rail 12 and on the other side by a second surface which, together with the first surface, defines a space wedge-shaped tapering towards the top.
  • the brake body 3 is held in a lower rest position.
  • the brake body is here designed as a roller body, which is pressed after activation of the brake on the second surface of the brake housing 3 and a guide surface of the guide rail 12 and wedged in a vertically downward movement direction of the car 11 further between the second surface and the guide surface , In this case, the guide rail 12 between the first surface of the brake housing 2 and the brake body 3 clamped.
  • the safety brake 1 thus exerts a braking force on the guide rail 12.
  • the brake body 3 deviating from the reel body also wedge-shaped or another suitable form engaging interpreted interpretable.
  • the activation mechanism 4 comprises a lever arm 8 and a compression spring 9, which in FIG. 2 is shown in a biased position.
  • the lever arm 8 is articulated at a first end with respect to the brake housing 2.
  • At its second freely movable end of the brake body 3 is mounted.
  • the compression spring 9 starts.
  • the compression spring 9 is arranged pressed between the lever arm 8 and the brake housing 2 and thus exerts an activation force on the lever arm 8.
  • the release mechanism 5 comprises an articulated arm 6 and an adjusting mechanism 7.
  • the articulated arm 6 is composed of two rod elements, which are connected via a deflectable joint.
  • a first end of the buckling bar 6 is articulated relative to the brake housing 2.
  • a second end is hingedly connected to the lever arm 8.
  • the adjusting mechanism 7 is mounted on the brake housing 3 and connected via the joint between the rod elements with the lever arm 8.
  • the adjusting mechanism 7 holds the articulated arm 6 in the one shown FIG. 2 in a stretched position. In the extended position of the articulated arm 6 acts against the activation force of the spring 9 and thus keeps the brake body 3 in the rest position.
  • the adjusting mechanism 7 may be realized as a solenoid, linear motor or the like.
  • a movable element of the adjusting mechanism 7 is connected to the joint of the articulated arm 6.
  • the adjusting mechanism 7 can be controlled by a safety device, not shown.
  • This safety device comprises at least one speed limiter, which upon detection of an overspeed of the car 11 controls the setting mechanism 7 to such an extent that the release mechanism 5 releases the activation force.
  • the safety device may also include a pressure sensor, which monitors the pressure of the working fluid in the hydraulic cylinder in a hydraulically driven elevator 10 and also controls the actuating mechanism 7 to release the activation energy at a critical negative pressure. The same applies to a further sensor of the safety device, which monitors a traction means and the control mechanism 7 controls accordingly in a crack of the traction means.
  • FIG. 3 shows the safety brake 1 in an activated state.
  • the adjusting mechanism 7 of the release mechanism 5 is controlled by the safety device.
  • the adjusting mechanism 7 brings the buckling bar 6 from its extended position in a bent position.
  • the force acting on the buckling mechanism 6 by the adjusting mechanism 7 is in the FIG. 3 represented by an arrow.
  • the stored energy in the spring 5 is released as an activating force, wherein the activation force is transmitted in the illustration shown vertically upwards on the lever arm 4.
  • the lever arm 4 is offset by the activation force about its bearing point in a rotational movement upward and transmits the activation force on the brake body 3.
  • the brake body 3 is pressed against the second surface of the brake housing 2 and the guide surface of the guide rail 12.
  • the brake body 3 wedged between said surfaces and clamps the guide rail against the first surface of the brake housing 2.
  • the force applied to the guide rail 12 braking force finally brings the car 11 to a standstill.
  • the safety brake 1 can also prevent inadmissible upward travel.
  • the safety brake 1 is vertically mirror-inverted to the cabin 11 to be arranged.
  • the brake body is pressed after the release of the activation force vertically downwards against the second surface of the brake housing and the guide surface of the guide rail and wedged in a vertically upward movement of the car 11 between said surfaces.
  • the brake body clamps the guide rail 12 against the first surface of the brake housing and thus brings the car 11 to a standstill.
  • the release mechanism 5 has an energy storage unit, not shown, such as a battery, another spring or similar. This energy storage unit ensures that the safety brake 1 remains activated even in the event of a power failure.
  • the release mechanism 5, in particular the deflectable joint of the articulated arm 6 comprise a one-sided stop.
  • the stop is particularly advantageously arranged with respect to a movement of the joint such that a maximum movement of the joint against the stop results in a slight overstretching of the articulated arm 6.
  • the stop is located on the side facing away from the adjusting mechanism 7.
  • the release mechanism 5 optionally has the further spring, which exerts a release force on the articulated arm 6 in the direction of adjustment of the adjusting mechanism 7.
  • the adjusting mechanism 7 acts in the rest position of the safety brake 1 with a counterforce against the release force of the other spring and holds the articulated arm 6 against the stop of the deflectable joint pushing in its extended position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Description

Die Erfindung betrifft einen Aufzug mit einer Sicherheitsbremse, insbesondere einer elektrisch auslösbaren Sicherheitsbremse, die einen möglichen Absturz einer Kabine in einem gefährlichen Betriebszustand des Aufzugs verhindern kann.The invention relates to an elevator with a safety brake, in particular an electrically releasable safety brake, which can prevent a possible crash of a car in a dangerous operating state of the elevator.

Typischerweise wird in einem Aufzug eine Kabine mittels eines Antriebs an Führungsschienen geführt auf verschieden Erschliessungsebenen eines Gebäudes verfahren. Als Antrieb dienen Traktionsantriebe oder hydraulische Antriebe. Ein Traktionsantrieb setzt sich zumindest aus einem Motor, einer Treibscheibe und einem Traktionsmittel, wie beispielsweise ein Seil oder Riemen zusammen. Der Motor treibt die Treibscheibe über eine Welle an. Die Treibscheibe wiederum überträgt mittels Reibkräften eine Traktion auf das Traktionsmittel. Am Traktionsmittel sind eine Kabine und ein Gegengewicht, das die Gewichtskraft der Kabine ausgleicht aufgehängt. Ein hydraulischer Antrieb umfasst zumindest einen Hydraulikzylinder und einen Hydraulikkolben. Im Hydraulikzylinder wird ein Arbeitsfluid verdichtet, das der Hydraulikkolben je nach aufgebautem Druck in eine vertikale Auf- oder Abwärtsbewegung umsetzt. Eine auf dem Kolben aufgesetzte Kabine wird entsprechend verfahren.Typically, in a lift, a car is guided by means of a drive to guide rails on different development levels of a building. The drive is provided by traction drives or hydraulic drives. A traction drive is composed at least of a motor, a traction sheave and a traction means, such as a rope or belt. The motor drives the traction sheave via a shaft. The traction sheave, in turn, transmits traction to the traction means by means of frictional forces. The traction means are a cab and a counterweight that balances the weight of the cab suspended. A hydraulic drive comprises at least a hydraulic cylinder and a hydraulic piston. In the hydraulic cylinder, a working fluid is compressed, which converts the hydraulic piston depending on the built-up pressure in a vertical upward or downward movement. A mounted on the piston cab is moved accordingly.

Die Europäische Sicherheitsnorm EN-81 schreiben den Einsatz einer Sicherheitsbremse bzw. einer sogenannten Fangbremse voraus. Eine solche Sicherheitsbremse ist an der Kabine montiert und kann bei einem Antriebsversagen, wie beispielsweise einem Traktionsmittelriss oder einem schnellen Druckabfall im Hydraulikzylinder die Kabine vor einem fatalen Absturz bewahren. Dazu ist die Sicherheitsbremse traditionell mit einem mechanischen Geschwindigkeitsbegrenzer verbunden. Dieser Geschwindigkeitsbegrenzer löst bei einer Übergeschwindigkeit die Sicherheitsbremse aus, die Sicherheitsbremse baut eine Bremskraft an den Führungsschienen auf und bringt so die Kabine zu einem sicheren Halt.The European safety standard EN-81 requires the use of a safety brake or a so-called safety brake. Such a safety brake is mounted on the cab and can save the cab from a fatal crash in the event of a drive failure such as a tractional rupture or a rapid pressure drop in the hydraulic cylinder. For this purpose, the safety brake is traditionally connected to a mechanical speed limiter. This speed limiter triggers the safety brake in the event of an overspeed, the safety brake builds up a braking force on the guide rails and thus brings the car to a safe stop.

In neuerer Zeit sind Bestrebungen unternommen worden, den mechanischen Geschwindigkeitsbegrenzer und mechanisch auslösbare Sicherheitsbremsen durch elektronische Geschwindigkeitsbegrenzer und elektronisch auslösbare Sicherheitsbremsen zu ersetzen, die sehr zuverlässig, wartungsfreundlich und günstig herstellbar sind.More recently, efforts have been made to replace the mechanical speed limiter and mechanically triggered safety brakes by electronic speed limiter and electronically triggered safety brakes, which are very reliable, easy to maintain and inexpensive to produce.

Die Patentschrift EP 1 400 476 A1 zeigt zum Beispiel eine solch elektronisch auslösbare Sicherheitsbremse. Diese Sicherheitsbremse ist durch einen vom Geschwindigkeitsbegrenzer angesteuerten Solenoid auslösbar und muss ausfallsicher betätigbar sein. Darum wird die Sicherheitsbremse durch den Elektromotor gegen einen federvorgespannten Hebelarm in einer Ruheposition gehalten. Bei einem Stromausfall wird die Energiezufuhr zum Solenoid unterbrochen und die in der Feder gespeicherte Energie freigegeben. Folglich wird die Sicherheitsbremse ausgelöst. Die in EP 1 400 476 A1 gezeigte Sicherheitsbremse zeichnet sich durch eine hohe Auslösesicherheit aus. Dies geht jedoch mit einem im Ruhezustand ständig mit Energie zu versorgenden Solenoid einher, der die Sicherheitsbremse gegen eine vorgespannte Feder in einer Ruheposition halten muss.The patent EP 1 400 476 A1 shows, for example, such an electronically triggered safety brake. This safety brake can be triggered by a solenoid controlled by the overspeed governor and must be fail-safe actuated. Therefore, the safety brake is held by the electric motor against a spring-biased lever arm in a rest position. In the event of a power failure, power to the solenoid is cut off and the energy stored in the spring is released. Consequently, the safety brake is triggered. In the EP 1 400 476 A1 shown safety brake is characterized by a high trip safety. However, this is associated with a constantly energized at rest, solenoid to hold the safety brake against a preloaded spring in a rest position.

Die Aufgabe der vorliegenden Erfindung, ist also eine elektronisch auslösbare Sicherheitsbremse zu entwickeln, die auch im Ruhezustand einen geringen Energiebedarf ausweist.The object of the present invention, therefore, is to develop an electronically releasable safety brake, which identifies a low energy requirement even when at rest.

Diese Aufgabe wird durch einen Aufzug mit einer Kabine, die an Führungsschienen geführt ist, und mit einer Sicherheitsbremse, die an der Kabine angeordnet ist und die dazu ausgelegt ist bei Nichteinhalten eines Sicherheitskriteriums eine Bremskraft auf die Führungsschienen auszuüben gelöst. Dabei umfasst die Sicherheitsbremse ein Bremsgehäuse, das eine keilförmig ausgestaltete Öffnung aufweist, in der zumindest ein Teil einer Führungsschiene einführbar ist, einen Bremskörper, der in der keilförmigen Öffnung zwischen einer die keilförmige Öffnung begrenzenden Fläche des Bremsgehäuses und einer Führungsfläche der Führungsschiene einführbar ist, einen Aktivierungsmechanismus, über den eine Aktivierungskraft auf den Bremskörper übertragbar ist und über den der Bremskörper an die begrenzende Fläche und Führungsfläche pressbar ist, und einen Freigabemechanismus, der mittelbar oder unmittelbar mit dem Bremskörper verbunden ist und den Bremskörper gegen die Aktivierungskraft in einer Ruheposition hält. Der Aufzug zeichnet sich dadurch aus, dass der Freigabemechanismus mindestens über einen Knickarm verfügt, der in eine gestreckte Lage und eine geknickte Lage bringbar ist, wobei der Knickarm in der gestreckten Lage den Bremskörper in der Ruheposition hält und in der geknickten Lage die Aktivierungskraft für eine Übertragung auf den Bremskörper freigibt.This object is achieved by an elevator with a car which is guided on guide rails, and with a safety brake which is arranged on the car and which is designed to exert a braking force on the guide rails in the event of non-compliance with a safety criterion. In this case, the safety brake comprises a brake housing which has a wedge-shaped opening in which at least part of a guide rail is insertable, a brake body which is insertable in the wedge-shaped opening between a wedge-shaped opening defining surface of the brake housing and a guide surface of the guide rail Activation mechanism, via which an activation force is transferable to the brake body and over which the brake body can be pressed against the limiting surface and guide surface, and a release mechanism which is directly or indirectly connected to the brake body and holds the brake body against the activation force in a rest position. The elevator is characterized in that the release mechanism has at least one articulated arm, which can be brought into an extended position and a folded position, the articulated arm in the extended position holding the brake body in the rest position and in the folded position, the activation force for a Transmission on the brake body releases.

Der Vorteil der Erfindung liegt darin, dass mittels des Knickarms die Sicherheitsbremse auch gegen eine relativ hohe Aktivierungskraft mit wenig Energie in einer Ruheposition gehalten werden kann. Zudem benötig der Freigabemechanismus für die Freigabe der Aktivierungskraft ebenfalls wenig Energie, da der Knickarm aus seiner gestreckten Lage sehr einfach unter Aufbringung einer geringen lateral wirkenden Kraft in eine geknickte Lage bringbar ist.The advantage of the invention is that by means of the articulated arm, the safety brake can be kept against a relatively high activation force with little energy in a rest position. In addition, the release mechanism for the release of the activation force also requires little energy, since the articulated arm is easily brought from its extended position with the application of a small lateral force in a kinked position.

Vorzugsweise verfügt der Freigabemechanismus über einen Stellmechanismus, der mit dem Knickarm verbunden ist. Dabei ist der Stellmechanismus dazu ausgelegt, den Knickarm aus seiner gestreckten Lage in seine geknickte Lage zu knicken.Preferably, the release mechanism has an adjustment mechanism connected to the articulated arm. In this case, the adjusting mechanism is designed to bend the articulated arm from its extended position to its kinked position.

Vorzugsweise verfügt der Stellmechanismus über einen elektrischen Antrieb, insbesondere ein Solenoid oder Linearmotor dergleichen. Dieser Antrieb ist dazu ansteuerbar, den Knickarm von der gestreckten Lage in die geknickte Lage zu bringen.Preferably, the adjusting mechanism has an electric drive, in particular a solenoid or linear motor of the like. This drive is controlled to bring the articulated arm of the stretched position in the folded position.

Dabei können vorteilhaft günstige kleine gewerblich erstehbare Standardantriebe verwendet werden.In this case, advantageously cheap small commercially available standard drives can be used.

Vorzugsweise ist der Stellmechanismus mit einem auslenkbaren Gelenk des Knickarms verbunden. Erstens kann am Gelenk eine besonders einfache Verbindung zum Stellmechanismus erstellt werden und zweitens ist die aufzugringende Kraft bei einer Krafteinleitung am Gelenk wegen der maximalen Ausnutzung der Hebeleffekte besonders klein.Preferably, the adjusting mechanism is connected to a deflectable joint of the articulated arm. Firstly, a particularly simple connection to the actuating mechanism can be created at the joint and secondly, the force that acts upon the force of rotation is particularly small when the force is applied to the joint because of the maximum utilization of the lever effects.

Vorzugsweise verfügt der Aktivierungsmechanismus über einen Hebelarm, der mit dem Bremskörper wirkverbunden ist und die Aktivierungskraft auf den Bremskörper überträgt. Über einen solchen Hebelarm kann das Verhältnis zwischen der Aktivierungskraft und dem Aufbau der Bremskraft besonders einfach und zuverlässig eingestellt werden.Preferably, the activation mechanism has a lever arm, which is operatively connected to the brake body and transmits the activation force to the brake body. About such a lever arm, the ratio between the activation force and the structure of the braking force can be adjusted particularly easily and reliably.

Vorzugsweise ist der Hebelarm dermassen mit dem Knickarm verbunden, dass der Knickarm in seiner gestreckten Lage den Hebelarm gegen die Aktivierungskraft in der Ruheposition hält.Preferably, the lever arm is connected to the articulated arm in such a way that, in its extended position, the articulated arm holds the lever arm against the activation force in the rest position.

Vorzugsweise ist der Hebelarm mit einer vorspannbaren Feder verbunden, die vorgespannt die Aktivierungskraft auf den Hebelarm überträgt. Die Feder ist ein besonders günstiges Bauteil, das die Aktivierungskraft auch über lange Zeitspannen speichern kann und bei Bedarf zuverlässig abgibt.Preferably, the lever arm is connected to a prestressable spring, which pretensioned transmits the activation force to the lever arm. The pen is a special one low-cost component that can store the activation force over long periods of time and delivers reliably when needed.

Vorzugsweise sind eine Längsachse des Knickarms und eine Längsachse der Feder fluchtend zueinander ausgerichtet.Preferably, a longitudinal axis of the articulated arm and a longitudinal axis of the spring are aligned with each other.

Vorzugsweise ist der Freigabemechanismus durch eine Sicherheitseinrichtung ansteuerbar, wobei die Sicherheitseinrichtung das Sicherheitskriterium überwacht und bei Nichteinhalten des Sicherheitskriteriums den Freigabemechanismus dermassen ansteuert, dass die Aktivierungskraft zur Übertragung auf den Bremskörper freigebbar ist.Preferably, the release mechanism is controllable by a safety device, wherein the safety device monitors the safety criterion and, if the safety criterion is not met, controls the release mechanism to such an extent that the activation force can be released for transmission to the brake body.

Dank der elektronischen Auslösung der Sicherheitsbremse sind mechanische Teile minierbar. Entsprechend können die Stück- und Wartungskosten gesenkt werden. Zudem besteht die Möglichkeit mittels der Sicherheitseinrichtung Gefahrenpotentiale der Aufzuganlage gestuft auszuwerten und die Gesamtzahl der nötigen Fanbremsungen zu minimieren.Thanks to the electronic release of the safety brake, mechanical parts can be reduced. Accordingly, the unit and maintenance costs can be reduced. In addition, it is possible by means of the safety device to evaluate danger potentials of the elevator system in a stepped manner and to minimize the total number of fan brakes required.

Vorzugsweise stellt das Sicherheitskriterium eine Kabinengeschwindigkeit, einen Fluidbetriebsdruck eines hydraulischen Antriebs oder einen Zustand eines Tragmittels, an dem die Kabine aufgehängt ist, dar.Preferably, the safety criterion is a car speed, a fluid operating pressure of a hydraulic drive or a state of a suspension means on which the car is suspended.

Vorzugsweise ist der Bremskörper als Rollenkörper oder Keil ausgelegt. Solche Bremskörper verkeilen sich zuverlässig zwischen der begrenzenden Fläche des Bremsgehäuses und der Führungsfläche einer Führungsschiene und üben dementsprechend eine in jedem Fall ausreichende Bremskraft auf die Führungsschiene aus.Preferably, the brake body is designed as a roller body or wedge. Such brake bodies are reliably wedged between the limiting surface of the brake housing and the guide surface of a guide rail and accordingly exert a sufficient braking force on the guide rail in each case.

Im Folgenden wird die Erfindung durch Ausführungsbeispiele und anhand von Zeichnungen verdeutlicht und weiter beschrieben. Es zeigen:

Fig. 1
Eine Ausführung des Aufzugs mit einer Sicherheitsbremse;
Fig. 2
Eine schematische Ansicht der Sicherheitsbremse in einer Ruheposition; und
Fig. 3
Eine schematische Ansicht der Sicherheitsbremse in einer aktivierten Position.
In the following the invention is illustrated by exemplary embodiments and with reference to drawings and described further. Show it:
Fig. 1
An embodiment of the elevator with a safety brake;
Fig. 2
A schematic view of the safety brake in a rest position; and
Fig. 3
A schematic view of the safety brake in an activated position.

Figur 1 zeigt eine Ausführung des Aufzugs 10 mit einer Kabine 11. Die Kabine 11 ist in einem Schacht 14 entlang einer Fahrbahn, die durch Führungsschienen 12 definiert ist, verfahrbar. Dazu verfügt der Aufzug 10 über einen hydraulischen Antrieb. Im gezeigten Ausschnitt ist lediglich ein Hydraulikkolben 13 davon sichtbar. Nicht sichtbar ist ein Hydraulikzylinder, in dem der Hydraulikkolben 13 geführt ist und der den Hydraulikkolben 13 vertikal nach oben oder unten bewegt. Die Kabine 11 ist im unteren Bereich mit zwei Sicherheitsbremsen 1 ausgerüstet. Die Sicherheitsbremsen 1 wirken bei einer Bremsung auf die Führungsflächen der Führungsschienen 12. Selbstredend ist der Aufzug 10 alternativ zum hydraulischen Antrieb mit einem Traktionsantrieb ausrüstbar, der über Traktionsmittel, an denen die Kabine 11 und ein Gegengewicht aufgehängt sind, und über einen Motor verfügt, der über eine Treibscheibe in Wirkkontakt mit dem Traktionsmittel steht. Als Traktionsmittel sind Seile, Riemen oder dergleichen einsetzbar. FIG. 1 shows an embodiment of the elevator 10 with a car 11. The car 11 is in a shaft 14 along a roadway, which is defined by guide rails 12, movable. For this purpose, the elevator 10 has a hydraulic drive. In the detail shown, only one hydraulic piston 13 thereof is visible. Not visible is a hydraulic cylinder in which the hydraulic piston 13 is guided and which moves the hydraulic piston 13 vertically up or down. The cabin 11 is equipped at the bottom with two safety brakes 1. Of course, the elevator 10 can be equipped with a traction drive as an alternative to the hydraulic drive, which has traction means on which the car 11 and a counterweight are suspended, and a motor which has a traction drive is in operative contact with the traction means via a traction sheave. As traction means ropes, belts or the like can be used.

In Figur 2 ist die Sicherheitsbremse 1 in einer Ruheposition dargestellt. Die Sicherheitsbremse umfasst ein Bremsgehäuse 2, einen Bremskörper 3, einen Aktivierungsmechanismus 4 und einen Freigabemechanismus 5.In FIG. 2 the safety brake 1 is shown in a rest position. The safety brake comprises a brake housing 2, a brake body 3, an activation mechanism 4 and a release mechanism 5.

Das Bremsgehäuse 2 weist eine Öffnung 20 auf in der zumindest ein Teil einer Führungsschiene 12 einführbar ist. Üblicherweise ist die Führungsschiene 12 als T-Profil gefertigt. Selbstverständlich kann die Führungsschiene 12 als U-Profil oder als andere geeignete Profilform entworfen sein. Im hier gezeigten Beispiel ist der der Kabine 11 zugewandte Stirnflansch der Führungsschiene 12 in die Öffnung 20 des Bremsgehäuses 2 eingeführt. Die Öffnung 20 wird auf der einen Seite von einer parallel zur Führungsschiene 12 verlaufenden ersten Fläche und auf der anderen Seite von einer zweiten Fläche begrenzt, die zusammen mit der ersten Fläche einen sich gegen oben hin keilförmig verjüngenden Raum definiert.The brake housing 2 has an opening 20 in which at least part of a guide rail 12 can be inserted. Usually, the guide rail 12 is made as a T-profile. Of course, the guide rail 12 may be designed as a U-profile or other suitable profile shape. In the example shown here, the cab 11 facing the end flange of the guide rail 12 is inserted into the opening 20 of the brake housing 2. The opening 20 is delimited on one side by a first surface extending parallel to the guide rail 12 and on the other side by a second surface which, together with the first surface, defines a space wedge-shaped tapering towards the top.

In diesem Raum ist der Bremskörper 3 in einer unteren Ruheposition gehalten. Der Bremskörper ist hier als Rollenkörper ausgelegt, der nach einer Aktivierung der Bremse an der zweiten Fläche des Bremsgehäuses 3 und einer Führungsfläche der Führungsschiene 12 gepresst wird und sich bei einer vertikal nach unten gerichteten Bewegungsrichtung der Kabine 11 weiter zwischen der zweiten Fläche und der Führungsfläche verkeilt. Dabei wird die Führungsschiene 12 zwischen der ersten Fläche des Bremsgehäuses 2 und dem Bremskörper 3 geklemmt. Die Sicherheitsbremse 1 übt also eine Bremskraft auf die Führungsschiene 12 aus. Selbstverständlich ist der Bremskörper 3 abweichend vom Rollenkörper auch keilförmig oder eine andere geeignete Form einnehmend auslegbar.In this room, the brake body 3 is held in a lower rest position. The brake body is here designed as a roller body, which is pressed after activation of the brake on the second surface of the brake housing 3 and a guide surface of the guide rail 12 and wedged in a vertically downward movement direction of the car 11 further between the second surface and the guide surface , In this case, the guide rail 12 between the first surface of the brake housing 2 and the brake body 3 clamped. The safety brake 1 thus exerts a braking force on the guide rail 12. Of course, the brake body 3 deviating from the reel body also wedge-shaped or another suitable form engaging interpreted interpretable.

Der Aktivierungsmechanismus 4 umfasst einen Hebelarm 8 und eine Druckfeder 9, die in Figur 2 in einer vorgespannten Lage gezeigt ist. Der Hebelarm 8 ist an einem ersten Ende in Bezug zum Bremsgehäuse 2 gelenkig gelagert. An seinem zweiten frei bewegbaren Ende ist der Bremsköper 3 montiert. In einem mittleren Bereich des Hebelarms 8 setzt die Druckfeder 9 an. Die Druckfeder 9 ist zwischen dem Hebelarm 8 und dem Bremsgehäuse 2 pressbar angeordnet und übt somit eine Aktivierungskraft auf den Hebelarm 8 aus.The activation mechanism 4 comprises a lever arm 8 and a compression spring 9, which in FIG. 2 is shown in a biased position. The lever arm 8 is articulated at a first end with respect to the brake housing 2. At its second freely movable end of the brake body 3 is mounted. In a central region of the lever arm 8, the compression spring 9 starts. The compression spring 9 is arranged pressed between the lever arm 8 and the brake housing 2 and thus exerts an activation force on the lever arm 8.

Der Freigabemechanismus 5 umfasst einen Knickarm 6 und einen Stellmechanismus 7. Der Knickarm 6 setzt sich aus zwei Stabelementen zusammen, die über ein auslenkbares Gelenk verbunden sind. Ein erstes Ende des Knickstabs 6 ist in Bezug zum Bremsgehäuse 2 gelenkig gelagert. Ein zweites Ende ist gelenkig mit dem Hebelarm 8 verbunden. Der Stellmechanismus 7 ist am Bremsgehäuse 3 montiert und über das Gelenk zwischen den Stabelementen mit dem Hebelarm 8 verbunden. Der Stellmechanismus 7 hält den Knickarm 6 in der gezeigten Figur 2 in einer gestreckten Lage. In der gestreckten Lage wirkt der Knickarm 6 gegen die Aktivierungskraft der Feder 9 und hält somit den Bremskörper 3 in der Ruhelage. Der Stellmechanismus 7 kann als Solenoid, Linearmotor oder dergleichen realisiert sein. Hierbei ist ein bewegliches Element des Stellmechanismus 7 mit dem Gelenk des Knickarms 6 verbunden.The release mechanism 5 comprises an articulated arm 6 and an adjusting mechanism 7. The articulated arm 6 is composed of two rod elements, which are connected via a deflectable joint. A first end of the buckling bar 6 is articulated relative to the brake housing 2. A second end is hingedly connected to the lever arm 8. The adjusting mechanism 7 is mounted on the brake housing 3 and connected via the joint between the rod elements with the lever arm 8. The adjusting mechanism 7 holds the articulated arm 6 in the one shown FIG. 2 in a stretched position. In the extended position of the articulated arm 6 acts against the activation force of the spring 9 and thus keeps the brake body 3 in the rest position. The adjusting mechanism 7 may be realized as a solenoid, linear motor or the like. Here, a movable element of the adjusting mechanism 7 is connected to the joint of the articulated arm 6.

Desweiteren ist der Stellmechanismus 7 von einer nicht gezeigten Sicherheitseinrichtung ansteuerbar. Diese Sicherheitseinrichtung umfasst zumindest einen Geschwindigkeitsbegrenzer, der bei Feststellen einer Übergeschwindigkeit der Kabine 11 den Stellmechanismus 7 dermassen ansteuert, dass der Freigabemechanismus 5 die Aktivierungkraft freigibt. Die Sicherheitseinrichtung kann auch einen Drucksensor umfassen, der bei einem hydraulisch angetriebenen Aufzug 10 den Druck des Arbeitsfluids im Hydraulikzylinder überwacht und bei einem kritischen Unterdruck ebenfalls den Stellmechanismus 7 zur Freigabe der Aktivierungsenergie ansteuert. Analoges gilt für einen weiteren Sensor der Sicherheitseinrichtung, der ein Traktionsmittel überwacht und bei einem Riss des Traktionsmittel den Stellmechanismus 7 entsprechend ansteuert. Für den Fachmann erschliessen sich weitere Möglichkeiten, mittels Sensor, Schalter, Kontakt oder dergleichen weitere Sicherheitskriterien des Aufzugs 10 zu überwachen und bei Nichterfüllen des Sicherheitskriteriums, den Stellmechanismus 7 im obigen Sinne anzusteuern, um den Aufzug 10 in einen sicheren Zustand zu überführen, bzw. die Sicherheitsbremse 1 auszulösen.Furthermore, the adjusting mechanism 7 can be controlled by a safety device, not shown. This safety device comprises at least one speed limiter, which upon detection of an overspeed of the car 11 controls the setting mechanism 7 to such an extent that the release mechanism 5 releases the activation force. The safety device may also include a pressure sensor, which monitors the pressure of the working fluid in the hydraulic cylinder in a hydraulically driven elevator 10 and also controls the actuating mechanism 7 to release the activation energy at a critical negative pressure. The same applies to a further sensor of the safety device, which monitors a traction means and the control mechanism 7 controls accordingly in a crack of the traction means. For the specialist further possibilities, by means of sensor, switch, contact or the like to monitor further safety criteria of the elevator 10 and in case of non-compliance with the safety criterion to control the adjusting mechanism 7 in the above sense to transfer the elevator 10 in a safe state, or trigger the safety brake 1 ,

Figur 3 zeigt die Sicherheitsbremse 1 in einem aktivierten Zustand. Für die Aktivierung der Sicherheitsbremse 1 wird wie oben beschrieben der Stellmechanismus 7 des Freigabemechanismus 5 durch die Sicherheitseinrichtung angesteuert. Der Stellmechanismus 7 bringt den Knickstab 6 aus seiner gestreckten Lage in eine geknickte Lage. Die vom Stellmechanismus 7 auf den Knickmechanismus 6 wirkende Kraft wird in der Figur 3 durch einen Pfeil dargestellt. FIG. 3 shows the safety brake 1 in an activated state. For the activation of the safety brake 1 as described above, the adjusting mechanism 7 of the release mechanism 5 is controlled by the safety device. The adjusting mechanism 7 brings the buckling bar 6 from its extended position in a bent position. The force acting on the buckling mechanism 6 by the adjusting mechanism 7 is in the FIG. 3 represented by an arrow.

In der geknickten Lage des Knickstabs 6 wird die in der Feder 5 gespeicherte Energie als Aktivierungskraft freigegeben, wobei die Aktivierungskraft in der gezeigten Darstellung senkrecht nach oben auf den Hebelarm 4 übertragen wird. Der Hebelarm 4 wird durch die Aktivierungskraft um seinen Lagerpunkt in eine Rotationsbewegung nach oben versetzt und überträgt die Aktivierungskraft auf den Bremskörper 3. Als Folge wird der Bremskörper 3 gegen die zweite Fläche des Bremsgehäuses 2 und der Führungsfläche der Führungsschiene 12 gepresst. Bei einer nach unten gerichteten Bewegung der Kabine 11 verkeilt sich der Bremskörper 3 weiter zwischen genannten Flächen und klemmt so die Führungsschiene gegen die erste Fläche des Bremsgehäuses 2. Die auf die Führungsschiene 12 aufgebrachte Bremskraft bringt schliesslich die Kabine 11 zu einem Stillstand.In the bent position of the buckling bar 6, the stored energy in the spring 5 is released as an activating force, wherein the activation force is transmitted in the illustration shown vertically upwards on the lever arm 4. The lever arm 4 is offset by the activation force about its bearing point in a rotational movement upward and transmits the activation force on the brake body 3. As a result, the brake body 3 is pressed against the second surface of the brake housing 2 and the guide surface of the guide rail 12. In a downward movement of the car 11, the brake body 3 wedged between said surfaces and clamps the guide rail against the first surface of the brake housing 2. The force applied to the guide rail 12 braking force finally brings the car 11 to a standstill.

Selbstverständlich kann die Sicherheitsbremse 1 auch eine unzulässige aufwärtsgerichtete Fahrt verhindern. Dazu ist die Sicherheitsbremse 1 vertikal spiegelverkehrt an der Kabine 11 anzuordnen. Hierbei wird der Bremskörper nach der Freigabe der Aktivierungskraft senkrecht nach unten gegen die zweite Fläche des Bremsgehäuses und der Führungsfläche der Führungsschiene gepresst und verkeilt sich bei einer vertikal nach oben gerichteten Bewegung der Kabine 11 zwischen genannten Flächen. Schliesslich klemmt auch in dieser Situation der Bremskörper die Führungsschiene 12 gegen die erste Fläche des Bremsgehäuses und bringt so die Kabine 11 zu einem Stillstand.Of course, the safety brake 1 can also prevent inadmissible upward travel. For this purpose, the safety brake 1 is vertically mirror-inverted to the cabin 11 to be arranged. Here, the brake body is pressed after the release of the activation force vertically downwards against the second surface of the brake housing and the guide surface of the guide rail and wedged in a vertically upward movement of the car 11 between said surfaces. Finally, even in this situation, the brake body clamps the guide rail 12 against the first surface of the brake housing and thus brings the car 11 to a standstill.

Zur sicheren Betätigung des Stellmechanismus 7 verfügt der Freigabemechanismus 5 über eine nicht dargestellte Energiespeichereinheit, wie eine Batterie, eine weitere Feder oder dergleichen. Diese Energiespeichereinheit stellt sicher, dass die Sicherheitsbremse 1 auch bei einem Stromausfall aktivierbar bleibt.For safe operation of the adjusting mechanism 7, the release mechanism 5 has an energy storage unit, not shown, such as a battery, another spring or similar. This energy storage unit ensures that the safety brake 1 remains activated even in the event of a power failure.

Optional kann der Freigabemechanismus 5, insbesondere das auslenkbare Gelenk des Knickarms 6 einen einseitigen Anschlag umfassen. Das heisst, dass das Gelenk in der gestreckten Lage des Knickarms nur in eine Rotationsrichtung öffnet. Besonders vorteilhaft ist dabei der Anschlag bezüglich einer Bewegung des Gelenks so angeordnet, dass eine maximale Bewegung des Gelenks gegen den Anschlag zu einer leichten Überstreckung des Knickarms 6 führt. In der gezeigten Darstellung in Figur 2 liegt der Anschlag auf der dem Stellmechanismus 7 abgewandten Seite. Somit ist durch eine Zugbewegung des Stellmechanismus am Gelenk der Knickarm 7 knickbar.Optionally, the release mechanism 5, in particular the deflectable joint of the articulated arm 6 comprise a one-sided stop. This means that the joint in the extended position of the articulated arm opens only in one direction of rotation. In this case, the stop is particularly advantageously arranged with respect to a movement of the joint such that a maximum movement of the joint against the stop results in a slight overstretching of the articulated arm 6. In the illustration shown in FIG. 2 the stop is located on the side facing away from the adjusting mechanism 7. Thus, by a pulling movement of the adjusting mechanism on the hinge of the articulated arm 7 kinked.

Besonders vorteilhaft verfügt der Freigabemechanismus 5 optional über die weitere Feder, die in der Stellrichtung des Stellmechanismus 7 eine Freigabekraft auf den Knickarm 6 ausübt. Bei dieser Ausführung wirkt der Stellmechanismus 7 in der Ruheposition der Sicherheitsbremse 1 mit einer Gegenkraft gegen die Freigabekraft der weiteren Feder und hält den Knickarm 6 gegen den Anschlag des auslenkbaren Gelenks drückend in seiner gestreckten Lage.Particularly advantageously, the release mechanism 5 optionally has the further spring, which exerts a release force on the articulated arm 6 in the direction of adjustment of the adjusting mechanism 7. In this embodiment, the adjusting mechanism 7 acts in the rest position of the safety brake 1 with a counterforce against the release force of the other spring and holds the articulated arm 6 against the stop of the deflectable joint pushing in its extended position.

Claims (11)

  1. Lift (10)
    - with a cage (11) which is guided at guide rails (12) and
    - with a safety brake (1) which is arranged at the cage (11) and which is designed for exertion of a braking force on the guide rails (12) in the event of non-compliance with a safety criterion,
    wherein the safety brake (1) comprises a brake housing (2) having an opening (20) of wedge-shaped form into which at least a part of a guide rail (12) is introducible, a brake body (3) introducible into the wedge-shaped opening between a surface of the brake housing (2) bounding the wedge-shaped opening and the guide surface of the guide rail (12), an activating mechanism (4) by way of which an activation force is transmissible to the brake body (3) and by way of which the brake body (3) can be pressed against the bounding surface and guide surface, and a release mechanism (5) which is connected indirectly or directly with the brake body (3) and holds the brake body (3) in a position against the activation force,
    characterised in that
    the release mechanism (5) comprises at least an articulated arm (6) which can be brought into an extended position and into a folded position, wherein the articulated arm (6) in the extended position holds the brake body (3) in the rest position and in the folded position releases the activation force for transmission to the brake body (3), and the activating mechanism (4) comprises a lever arm (8) which is operatively connected with the brake body (3) and transmits the activation force to the brake body (3), the lever arm (8) being so connected with the articulated arm (6) that the articulated arm (6) in its extended position holds the lever arm (8) in the rest position against the activation force.
  2. Lift (10) according to claim 1, characterised in that the release mechanism (5) comprises a setting mechanism (7) connected with the articulated arm (6), wherein the setting mechanism (7) is designed for the purpose of folding the articulated arm (6) from its extended position into its folded position.
  3. Lift (10) according to claim 2, characterised in that the setting mechanism (7) comprises an electric drive, particularly a solenoid or linear motor, which is activatable for the purpose of bringing the articulated arm (6) from the extended position into the folded position.
  4. Lift (10) according to one of claims 2 and 3, characterised in that the setting mechanism (7) is connected with a deflectable joint of the articulated arm.
  5. Lift (10) according to claim 1, characterised in that the lever arm (8) is connected with a spring (9) which can be biased and which in biased state transmits the activation force to the lever arm (8).
  6. Lift (10) according to claim 5, characterised in that a longitudinal axis of the articulated arm (6) and a longitudinal axis of the spring (9) are oriented in alignment with one another.
  7. Lift (10) according to claim 1, characterised in that the release mechanism (5) comprises an energy storage unit, particularly a battery or a further spring.
  8. Lift (10) according to claim 7, characterised in that the further spring exerts a release force on the articulated arm (6), wherein the setting mechanism (7) in the rest position of the safety brake (1) counteracts, by a counter-force, the release force of the further spring and holds the articulated arm (6) in its extended position.
  9. Lift (10) according to claim 1, characterised in that the release mechanism (5) is activatable by a safety device, wherein the safety device monitors the safety criterion and in the event of non-compliance of the safety criterion activates the release mechanism (5) in such a way that the activation force is releasable for transmission to the brake body.
  10. Lift (10) according to claim 9, characterised in that the safety criterion represents a cage speed, a fluid operating pressure of a hydraulic drive or a state of a support means at which the cage (11) is suspended.
  11. Lift (10) according to claim 1, characterised in that the brake body (3) is designed as a roller body or wedge.
EP13802541.6A 2012-11-13 2013-11-05 Lift with a safety brake Active EP2920101B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13802541.6A EP2920101B1 (en) 2012-11-13 2013-11-05 Lift with a safety brake

Applications Claiming Priority (3)

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EP12192317 2012-11-13
EP13802541.6A EP2920101B1 (en) 2012-11-13 2013-11-05 Lift with a safety brake
PCT/EP2013/073057 WO2014075954A1 (en) 2012-11-13 2013-11-05 Lift with a safety brake

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EP2920101A1 EP2920101A1 (en) 2015-09-23
EP2920101B1 true EP2920101B1 (en) 2017-01-11

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US (1) US9695011B2 (en)
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CN (1) CN104781175B (en)
ES (1) ES2622333T3 (en)
WO (1) WO2014075954A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12280984B2 (en) 2018-10-26 2025-04-22 Otis Elevator Company Elevator system

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10054176B2 (en) 2015-02-25 2018-08-21 Rock Exotica Llc Lift systems, line brakes, and methods of vertically moving loads
DE102015217423A1 (en) * 2015-09-11 2017-03-16 Thyssenkrupp Ag Electrically actuated safety gear for an elevator installation and method for triggering such
US10486939B2 (en) 2015-09-27 2019-11-26 Otis Elevator Company Breaking system for a hoisted structure and method of controlling braking a hoisted structure
CN108349695B (en) * 2015-11-26 2021-04-16 三菱电机株式会社 Emergency stop device for elevator car
DE102016218635A1 (en) * 2016-09-28 2018-03-29 Thyssenkrupp Ag Electromechanical actuator for actuating a brake of an elevator installation
US10173144B2 (en) 2016-10-19 2019-01-08 James HEATH Lift system with moving cam assembly and related methods
FI3606857T3 (en) * 2017-04-04 2024-11-25 Smidth As F L Mine shaft conveyance safety brake
US11434104B2 (en) 2017-12-08 2022-09-06 Otis Elevator Company Continuous monitoring of rail and ride quality of elevator system
CN108750883A (en) * 2018-07-05 2018-11-06 安川双菱电梯有限公司 Elevator with weightless ensuring equipment
EP3670414B1 (en) * 2018-12-20 2023-06-14 KONE Corporation An elevator safety gear trigger and reset system
EP3677534B1 (en) * 2019-01-02 2021-07-21 Otis Elevator Company Elevator safety device actuator
KR102644704B1 (en) * 2019-08-29 2024-03-06 다이나텍, 다이나믹스 앤드 테크놀러지, 에스. 엘. Electromechanical one-way emergency stop device for elevators
CN114206764A (en) 2019-08-29 2022-03-18 戴纳泰克动力与科技有限公司 Electromechanical activation of a bidirectional emergency stop device for an elevator
ES2821014A1 (en) 2019-09-06 2021-04-23 Orona S Coop Lifting device braking device and associated braking procedure (Machine-translation by Google Translate, not legally binding)
EP3995431A1 (en) * 2020-11-06 2022-05-11 Otis Elevator Company Adjustable force safety brakes
TWI823303B (en) * 2022-03-23 2023-11-21 辛耘企業股份有限公司 Lifting equipment with anti-drop function and first braking device

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2274000A (en) * 1941-10-16 1942-02-24 Otis Elevator Co Elevator safety apparatus
US2490653A (en) * 1948-09-02 1949-12-06 Otis Elevator Co Safety mechanism for elevators
US3282383A (en) * 1964-06-30 1966-11-01 Triax Co Free-fall safety brake
GB1226439A (en) * 1968-12-09 1971-03-31
US4449615A (en) 1981-08-04 1984-05-22 Mcdonald Elevator Hydraulic ram safety device with circular brake
JP2529771B2 (en) * 1990-11-06 1996-09-04 三菱電機株式会社 Low Press Linear Motor Elevator
US5228540A (en) * 1992-07-24 1993-07-20 Hollister-Whitney Elevator Corp. Elevator car brake with shoes actuated by springs
JP3532349B2 (en) * 1996-06-11 2004-05-31 三菱電機株式会社 Elevator safety equipment
FI105177B (en) * 1997-04-14 2000-06-30 Kone Corp Procedure and test device for trapping apparatus in an elevator
US5819879A (en) * 1997-11-06 1998-10-13 Otis Elevator Company Safety brake
US6173813B1 (en) * 1998-12-23 2001-01-16 Otis Elevator Company Electronic control for an elevator braking system
TW513374B (en) * 2000-12-08 2002-12-11 Inventio Ag Safety brake with retardation-dependent braking force
EP1400476B1 (en) 2002-09-23 2009-10-21 Inventio Ag Safety gear for elevators
JP2004262652A (en) * 2002-09-23 2004-09-24 Inventio Ag Safety device for elevator
MY135853A (en) * 2003-02-04 2008-07-31 Inventio Ag Safety device for an elevator
DE10334654A1 (en) * 2003-07-22 2005-02-10 Thyssenkrupp Elevator Ag cable brake
US7575099B2 (en) * 2003-10-07 2009-08-18 Otis Elevator Company Remotely resettable ropeless emergency stopping device for an elevator
KR20090122934A (en) * 2007-03-12 2009-12-01 인벤티오 아게 lift
CN102120539B (en) * 2010-12-30 2013-09-04 沈阳博林特电梯股份有限公司 Electromagnetic wedge-shaped bidirectional rope gripper
CN102491144A (en) * 2011-11-20 2012-06-13 江都市显业集团有限公司 Rope breakage protecting device for main unit of flat-bottomed steep tank
BR112015005264A2 (en) * 2012-09-14 2017-07-04 Inventio Ag activating element of a pickup device
US10442662B2 (en) * 2013-12-19 2019-10-15 Inventio Ag Caliper brake for elevator systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12280984B2 (en) 2018-10-26 2025-04-22 Otis Elevator Company Elevator system

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Publication number Publication date
CN104781175A (en) 2015-07-15
ES2622333T3 (en) 2017-07-06
EP2920101A1 (en) 2015-09-23
WO2014075954A1 (en) 2014-05-22
US20160272464A1 (en) 2016-09-22
US9695011B2 (en) 2017-07-04
CN104781175B (en) 2016-09-14

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