EP0648703B1 - Safety braking device for an elevator - Google Patents

Safety braking device for an elevator Download PDF

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Publication number
EP0648703B1
EP0648703B1 EP93116780A EP93116780A EP0648703B1 EP 0648703 B1 EP0648703 B1 EP 0648703B1 EP 93116780 A EP93116780 A EP 93116780A EP 93116780 A EP93116780 A EP 93116780A EP 0648703 B1 EP0648703 B1 EP 0648703B1
Authority
EP
European Patent Office
Prior art keywords
brake
pressure
braking
equipment
equipment according
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
Application number
EP93116780A
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German (de)
French (fr)
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EP0648703A1 (en
Inventor
Heinz-Dieter Nagel
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Inventio AG
Original Assignee
Inventio AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP93116780A priority Critical patent/EP0648703B1/en
Priority to DE59309330T priority patent/DE59309330D1/en
Priority to AT93116780T priority patent/ATE175946T1/en
Priority to ES93116780T priority patent/ES2129480T3/en
Priority to DK93116780T priority patent/DK0648703T3/en
Priority to AU74323/94A priority patent/AU675162B2/en
Priority to CA002118107A priority patent/CA2118107C/en
Priority to CN94117290A priority patent/CN1038242C/en
Priority to BR9404131A priority patent/BR9404131A/en
Priority to FI944867A priority patent/FI107728B/en
Priority to US08/324,789 priority patent/US5648644A/en
Priority to JP25239194A priority patent/JP3675861B2/en
Publication of EP0648703A1 publication Critical patent/EP0648703A1/en
Priority to HK98112331A priority patent/HK1011335A1/en
Application granted granted Critical
Publication of EP0648703B1 publication Critical patent/EP0648703B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a safety device for a Elevator car with one on a guide rail attacking braking device, the from the Brake device exerted on the guide rail Braking force is regulated by a control device.
  • a disadvantage of the known device is large Space requirement of the scissor-like braking device, what again the arrangement of the guide devices of the Elevator car difficult.
  • Another disadvantage is in by the lifting device and the wedge-shaped friction member formed trigger device, particularly at the beginning of slowing down uncontrollable peak delays caused.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the Task to the disadvantages of the known device avoid and create a safety device with which is the delay of the elevator car throughout Braking regardless of the direction of travel on one constant value is stable.
  • the advantages achieved by the invention are in essential to see that the elevator users at emergency braking does not cause unnecessary deceleration forces be exposed to driving comfort and safety especially for elevator users with walking difficulties emergency braking means. Another advantage is in it to see that the elevator car by means of the Safety device for maintenance work on one any place or for loading and unloading can.
  • 1 is an elevator shaft referred to, in which along guide rails 2 Elevator car 3 is movable.
  • the elevator car 3 stands in a support frame 4, which consists of an upper yoke 4.1 a lower yoke 4.2, from side plates 4.3 and on the corners arranged stiffening plates 4.4.
  • a support frame 4 which consists of an upper yoke 4.1 a lower yoke 4.2, from side plates 4.3 and on the corners arranged stiffening plates 4.4.
  • recesses 7 are arranged, in the guides 8 one brake device 9 belonging to the safety device intervention.
  • the Fastening housing 6 is in this way on the support frame 4 arranged that arranged on the mounting housing 6 Fastening holes 11 to the fastening points 5 lie and the braking device 9 with Tread 2.3 provided free leg 2.2 of the Encloses guide rail 2.
  • the braking device 9 has per tread 2.3 a brake plate 12 with a brake sensor 13 on. The brake sensor embedded in the brake plate 12 13 is used to monitor the brake plate 12.
  • the signal of the Brake sensor 13, for example a temperature-dependent Resistance, is running from an elevator control 27 evaluated.
  • the elevator car is stopped.
  • At least one carried by a brake plate holder 12.1 Brake plate 12 is in the event of braking from one to the Brake device 9 arranged brake cylinder 14 with a Cylinder chamber 14.1, with a piston 14.2 and with one Pressure fluid seal 14.3 actuated by means of a Pressure medium line 15 in connection with a Pressure device 17 belonging to the safety device stands.
  • 9 and 10 is a further embodiment variant of the cylinder chamber 14.1, piston 14.2, fluid seal 14.3, compression spring 14.4 and piston seal 14.5 existing Brake cylinder 14 shown, in which the braking force is generated by means of the compression spring 14.4.
  • the regulation of braking force acting on the brake plate 12 is effected by Acting in the opposite direction of the brake cylinder 14 by means of pressure medium of the pressure medium device 17.
  • the one belonging to the safety device Pressure medium device 17 has one of a motor 18 driven pressure pump 19, which from a tank 19.1 Pressure medium via a check valve 22.2 to one Pressure accumulator 20 promotes until the second Pressure switch 23.2 set maximum storage pressure is reached. If the storage pressure falls below one a first adjustable minimum switch 23.1 Pressure, the pressure accumulator 20 is back on the maximum storage pressure charged. The memory pressure is greater than the brake pressure required for the braking event. In the event of overpressure, a pressure relief valve 21 closes the Pump 19 with the tank 19.1 briefly. Apply when braking a 3/2-way valve 22 and a pressure control valve 22.1 den Brake cylinder 14 with the via the pressure medium line 15 guided pressure medium.
  • the Control device 16 based on the signals of a Accelerometer 25 or one Speed sensor 24 of a speed limiter the 3/2-way valve 22 on. That in the accumulator 20 under Pressure medium thus flows by means of Pressure medium line 15 to the cylinder space 14.1 and causes that the brake plate 12 against the tread 2.3 of the Guide rail 2 is pressed. At the same time a Mounting housing 6 arranged deceleration sensor 26 the delay of the elevator car 3. Due to the signal of the delay sensor 26 changes the control device 16 the setting of the pressure control valve 22.1.
  • the control device 16 Setting the pressure control valve 22.1 such that the Braking force of the brake cylinder 14 is increased until one corresponding to the simple gravitational acceleration Delay value is reached. Surrender through different friction conditions on the treads 2.3 the guide rail 2 deceleration values, the greater than the simple acceleration of gravity, so the Control device 16 by means of the pressure control valve 22.1 Braking force of the brake cylinder 14 to deceleration values according to the simple acceleration due to gravity. The delay of the elevator car 3 remains constant and follows one during the entire braking process predetermined value.
  • the control device 16 compares the predetermined value, for example simple Acceleration due to gravity, by means of at the elevator car 3 Delay sensor 26 measured value and equal Differences between the two values by more or less exposure to the brake cylinder 14 by means of Pressure control valve 22.1 off. As soon as the elevator car to Has come to a standstill, the control device 16 changes the Setting the pressure control valve 22.1 such that the Braking force of the brake cylinder 14 its maximum value reached. The elevator car 3 is thereby in Elevator shaft 1 blocked.
  • the predetermined value for example simple Acceleration due to gravity
  • the safety device For loading or unloading the elevator car 3 on one certain floor or for maintenance of the elevator car 3 at any point in the elevator shaft 1
  • the safety device is activated manually.
  • the activated prevents loading and unloading Security device the one or the Rebound of the elevator car 3.
  • Activation of the safety device takes place by means of the elevator control 27, which in turn by means of manual switches (not shown) in the is brought into the respective operating state.
  • the Control device 16 switches the 3/2-way valve 22 and sets the pressure control valve 22.1 to the maximum value so that the elevator car 3 with maximum braking force of the brake cylinder 14 on the guide rails 2 is held.
  • the pressure medium in the brake cylinder 14 relax via the throttle valve 22.3 to the tank 19.1 can.
  • the speed of the brake force reduction is at that Throttle valve 22.3 adjustable.
  • the Control device 16 based on the signals of a Accelerometer 25 or one Speed sensor 24 of a speed limiter the pressure control valve 22.1 such that the pressure in Cylinder space 14.1 is reduced to such an extent that the Compression spring 14.4, the brake plates 12 on the running surfaces 2.3 presses and a braking effect is achieved.
  • the Control device 16 measures a arranged on the mounting housing 6 Delay sensor 26 the delay of the elevator car 3. Due to the signal of the delay sensor 26, the Control device 16 the setting of the pressure control valve 22.1.
  • control device 16 Setting the pressure control valve 22.1 such that the Braking force of the brake cylinder 14 is reduced until one corresponding to the simple gravitational acceleration Delay value is reached. Surrender through different friction conditions on the treads 2.3 the guide rail 2 deceleration values, the greater than the simple gravitational acceleration are corrected Control device 16 by appropriate setting of Pressure control valve 22.1 and by switching on the 2/2-way valve 22.4 the braking force of the brake cylinder 14 to Delay values according to the simple Gravitational acceleration are reached. The delay of Elevator car 3 remains constant and follows during entire braking operation a predetermined value.
  • the Control device 16 compares the predetermined value, for example, simple gravitational acceleration with which at the Elevator car 3 measured by means of deceleration sensor 26 Value and equalize differences between the two values by applying more or less pressure to the brake cylinder 14 by means of the 2/2-way valve 22.4 and the pressure control valve 22.1 off. As soon as the elevator car came to a standstill is, the control device 16 closes the 2/2-way valve 22.4 and changes the setting of the pressure control valve 22.1 such that the compression spring 14.4 with the brake plates 12 maximum spring force against the tread 2.3 Guide rail 2 presses. The elevator car 3 is thereby blocked in elevator shaft 1.
  • the predetermined value for example, simple gravitational acceleration with which at the Elevator car 3 measured by means of deceleration sensor 26 Value
  • the safety device For loading or unloading the elevator car 3 on one certain floor or for maintenance of the elevator car 3 at any point in the elevator shaft 1
  • the safety device is activated manually.
  • the activated prevents loading and unloading Security device the one or the Rebound of the elevator car 3.
  • Activation of the safety device takes place by means of the elevator control 27, which in turn by means of manual switches (not shown) in the is brought into the respective operating state.
  • the Control device 16 changes the setting of the Pressure control valve 22.1 such that the compression spring 14.4 Brake plates 12 with maximum spring force against the Treads 2.3 of the guide rail 2 presses so that the Elevator car 3 held on the guide rails 2 becomes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Types And Forms Of Lifts (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Centrifugal Separators (AREA)
  • Braking Systems And Boosters (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Elevator Control (AREA)

Abstract

In this safety device, an attachment housing (6) arranged on the supporting frame of an elevator has recesses in which guides of a brake device (9) engage, as a result of which the brake device (9) is displaceably mounted in the attachment housing (6). The attachment housing (6) is arranged on the supporting frame in such a way that the brake device (9) encloses a free leg (2.2) with running surfaces (2.3) of a guide rail. For each running surface (2.3), the brake device (9) has a brake plate (12) carried by a brake-plate holder (12.1) and having a brake sensor (13). The brake sensor (13) embedded in the brake plate (12) serves to monitor the brake plate (12). During braking, at least one brake plate (12) is actuated by a brake cylinder (14) which is arranged on the brake device (9) and is connected to a pressure-medium device by means of a pressure-medium line. <IMAGE>

Description

Die Erfindung betrifft eine Sicherheitseinrichtung für eine Aufzugskabine mit einer an einer Führungsschiene angreifenden Bremseinrichtung, wobei die von der Bremseinrichtung auf die Führungsschiene ausgeübte Bremskraft von einer Regeleinrichtung geregelt wird.The invention relates to a safety device for a Elevator car with one on a guide rail attacking braking device, the from the Brake device exerted on the guide rail Braking force is regulated by a control device.

Aus der Schrift DE-A1 3 934 492 ist eine Bremseinrichtung mit zwei scherenartigen Rahmengliedern für einen Aufzugfahrkorb bekannt, an denen einenends ein keilförmiges Reibglied und ein Bremsblock und anderenends eine Druckfeder und ein Elektromagnet angeordnet sind. Im Notfall wird das keilförmige Reibglied von einer Hebeeinrichtung nach oben bewegt, so dass eine vom Bremsblock an einer Führungsschiene ausgelöste Reibungskraft den sich nach unten bewegende Aufzugfahrkorb verlangsamt und anhält. Die Verlangsamung des Fahrkorbes wird mittels eines Beschleunigungsmessfühlers gemessen. Aufgrund der von diesem Messfühler gelieferten Daten wird ein den Elektromagneten speisenden Rückkopplungsregler so gesteuert, dass die Reibungskraft zwischen der Führungsschiene und dem Bremsblock die Verlangsamung des Fahrkorbes konstant hält.From the document DE-A1 3 934 492 is a braking device with two scissor-like frame links for one Elevator car known, at one end a wedge-shaped Friction member and a brake block and the other one Compression spring and an electromagnet are arranged. in the In an emergency, the wedge-shaped friction member of one Lifting device moves upwards so that one of the Brake block triggered on a guide rail Frictional force the elevator car moving down slows down and stops. The slowing down of the car is measured using an accelerometer. Based on the data provided by this sensor a feedback regulator feeding the electromagnet controlled that the frictional force between the Guide rail and the brake block slowing down the Car keeps constant.

Ein Nachteil der bekannten Einrichtung liegt im grossen Platzbedarf der scherenartigen Bremseinrichtung, was wiederum die Anordnung der Führungseinrichtungen des Aufzugfahrkorbes erschwert. Ein weiterer Nachteil liegt in der durch die Hebeeinrichtung und das keilförmige Reibglied gebildete Auslöseeinrichtung, die insbesondere zu Beginn der Verlangsamung unkontrollierbare Spitzenverzögerungen verursacht. A disadvantage of the known device is large Space requirement of the scissor-like braking device, what again the arrangement of the guide devices of the Elevator car difficult. Another disadvantage is in by the lifting device and the wedge-shaped friction member formed trigger device, particularly at the beginning of slowing down uncontrollable peak delays caused.

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 Sicherheitseinrichtung zu schaffen, mit der die Verzögerung der Aufzugskabine während dem gesamten Bremsvorgang unabhängig von der Fahrtrichtung auf einem konstanten Wert haltbar ist.The invention seeks to remedy this. The invention, as characterized in the claims, solves the Task to the disadvantages of the known device avoid and create a safety device with which is the delay of the elevator car throughout Braking regardless of the direction of travel on one constant value is stable.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass die Aufzugsbenutzer bei einer Notbremsung nicht unnötigen Verzögerungskräften ausgesetzt werden, was Fahrkomfort und Sicherheit insbesondere für gehbehinderte Aufzugsbenutzer auch bei einer Notbremsung bedeutet. Ein weiterer Vorteil ist darin zu sehen, dass die Aufzugskabine mittels der Sicherheitseinrichtung für Wartungsarbeiten an einem beliebigen Ort oder zum Be- und Entladen festgesetzt werden kann.The advantages achieved by the invention are in essential to see that the elevator users at emergency braking does not cause unnecessary deceleration forces be exposed to driving comfort and safety especially for elevator users with walking difficulties emergency braking means. Another advantage is in it to see that the elevator car by means of the Safety device for maintenance work on one any place or for loading and unloading can.

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

Fig. 1
einen schematischen Aufriss einer in einem Aufzugsschacht verfahrbaren Aufzugskabine mit an einem oberen Joch angeordneten Teilen einer erfindungsgemässen Sicherheitseinrichtung,
Fig. 2
einen schematischen Grundriss der Aufzugsanlage gemäss Fig. 1,
Fig. 3
einen schematischen Aufriss der im Aufzugsschacht verfahrbaren Aufzugskabine mit an einem unteren Joch angeordneten Teilen der erfindungsgemässen Sicherheitseinrichtung,
Fig. 4
einen schematischen Grundriss der Aufzugsanlage gemäss Fig. 3,
Fig. 5
einen schematischen Aufriss einer in einem Befestigungsgehäuse angeordneten Bremseinrichtung der erfindungsgemässen Sicherheitseinrichtung,
Fig. 6
einen schematischen Grundriss der Einrichtung gemäss Fig. 5,
Fig. 7
einen schematischen Aufriss von Einzelheiten der Bremseinrichtung gemäss Fig. 5 und Fig. 6,
Fig. 8
einen schematischen Grundriss der Einrichtung gemäss Fig. 7,
Fig. 9
eine Ausführungsvariante der Einzelheiten der Bremseinrichtung gemäss Fig. 7 und Fig. 8,
Fig. 10
einen schematischen Grundriss der Einrichtung gemäss Fig. 9,
Fig. 11
eine schematische Darstellung einer mit einer Regeleinrichtung zusammenwirkenden Druckmitteleinrichtung und
Fig. 12
eine Ausführungsvariante der mit einer Regeleinrichtung zusammenwirkenden Druckmitteleinrichtung.
The invention is explained in more detail below with the aid of drawings which illustrate only one embodiment. Show it:
Fig. 1
1 shows a schematic elevation of an elevator car that can be moved in an elevator shaft with parts of an inventive safety device arranged on an upper yoke,
Fig. 2
2 shows a schematic plan view of the elevator installation according to FIG. 1,
Fig. 3
2 shows a schematic elevation of the elevator car which can be moved in the elevator shaft with parts of the safety device according to the invention arranged on a lower yoke,
Fig. 4
3 shows a schematic plan view of the elevator installation according to FIG. 3,
Fig. 5
2 shows a schematic elevation of a braking device of the safety device according to the invention arranged in a fastening housing,
Fig. 6
5 shows a schematic plan view of the device according to FIG. 5,
Fig. 7
5 shows a schematic elevation of details of the braking device according to FIGS. 5 and 6,
Fig. 8
7 shows a schematic plan view of the device according to FIG. 7,
Fig. 9
8 shows an embodiment variant of the details of the braking device according to FIGS. 7 and 8,
Fig. 10
9 shows a schematic plan view of the device according to FIG. 9,
Fig. 11
is a schematic representation of a pressure medium device interacting with a control device and
Fig. 12
an embodiment variant of the pressure medium device interacting with a control device.

In den Fig. 1 bis 12 ist mit 1 ein Aufzugsschacht bezeichnet, in dem entlang von Führungsschienen 2 eine Aufzugskabine 3 verfahrbar ist. Die Aufzugskabine 3 steht in einem Tragrahmen 4, der aus einem oberen Joch 4.1, aus einem unteren Joch 4.2, aus Seitenschildern 4.3 und aus an den Ecken angeordneten Aussteifungsblechen 4.4 besteht. Je nach Ausführungsvariante ist mindestens ein Befestigungsgehäuse 6 einer Sicherheitseinrichtung an Befestigungspunkten 5 mit dem oberen Joch 4.1 und/oder mit dem unteren Joch 4.2 verbunden. Am Befestigungsgehäuse 6 sind Ausnehmungen 7 angeordnet, in die Führungen 8 einer zur Sicherheitseinrichtung gehörenden Bremseinrichtung 9 eingreifen. Zwischen den Ausnehmungen 7 und den Führungen 8 sind elastische Zwischenlagen 10 angeordnet, wodurch die Bremseinrichtung 9 so verschiebbar im Befestigungsgehäuse 6 gelagert wird, dass sie während des Bremsvorganges in der Lage ist, Lotabweichungen und Toleranzen der Führungsschiene 2 beliebig zu folgen. Dadurch werden zusätzliche auf die Führungsschiene 2, auf den Tragrahmen 4 und auf den Aufzugsschacht 1 wirkende Kräfte vermieden. Das Befestigungsgehäuse 6 ist derart am Tragrahmen 4 angeordnet, dass am Befestigungsgehäuse 6 angeordnete Befestigungsbohrungen 11 auf die Befestigungspunkte 5 zu liegen kommen und die Bremseinrichtung 9 einen mit Laufflächen 2.3 versehenen freien Schenkel 2.2 der Führungsschiene 2 umschliesst. Die Bremseinrichtung 9 weist je Lauffläche 2.3 eine Bremsplatte 12 mit einem Bremssensor 13 auf. Der in die Bremsplatte 12 eingebettete Bremssensor 13 dient der Überwachung der Bremsplatte 12. Das Signal des Bremssensors 13, beispielsweise ein temperaturabhängiger Widerstand, wird von einer Aufzugssteuerung 27 laufend ausgewertet. Bei entsprechender Änderung des Signals beispielsweise durch Übertemperatur oder Abnutzung der Bremsplatte 12 wird die Aufzugskabine stillgesetzt. Mindestens eine von einem Bremsplattenhalter 12.1 getragene Bremsplatte 12 wird im Bremsfall von einem an der Bremseinrichtung 9 angeordneten Bremszylinder 14 mit einem Zylinderraum 14.1, mit einem Kolben 14.2 und mit einer Druckmitteldichtung 14.3 betätigt, der mittels einer Druckmittelleitung 15 in Verbindung mit einer zur Sicherheitseinrichtung gehörenden Druckmitteleinrichtung 17 steht.1 to 12, 1 is an elevator shaft referred to, in which along guide rails 2 Elevator car 3 is movable. The elevator car 3 stands in a support frame 4, which consists of an upper yoke 4.1 a lower yoke 4.2, from side plates 4.3 and on the corners arranged stiffening plates 4.4. Each depending on the variant, there is at least one Fastening housing 6 of a safety device Attachment points 5 with the upper yoke 4.1 and / or with connected to the lower yoke 4.2. On the mounting housing 6 recesses 7 are arranged, in the guides 8 one brake device 9 belonging to the safety device intervention. Between the recesses 7 and the guides 8 elastic intermediate layers 10 are arranged, whereby the Braking device 9 so displaceable in the mounting housing 6 is stored that it during the braking process in the Is capable of solder deviations and tolerances Follow guide rail 2 as desired. This will additional on the guide rail 2, on the support frame 4 and forces acting on the elevator shaft 1 are avoided. The Fastening housing 6 is in this way on the support frame 4 arranged that arranged on the mounting housing 6 Fastening holes 11 to the fastening points 5 lie and the braking device 9 with Tread 2.3 provided free leg 2.2 of the Encloses guide rail 2. The braking device 9 has per tread 2.3 a brake plate 12 with a brake sensor 13 on. The brake sensor embedded in the brake plate 12 13 is used to monitor the brake plate 12. The signal of the Brake sensor 13, for example a temperature-dependent Resistance, is running from an elevator control 27 evaluated. When the signal changes accordingly for example due to overtemperature or wear of the Brake plate 12, the elevator car is stopped. At least one carried by a brake plate holder 12.1 Brake plate 12 is in the event of braking from one to the Brake device 9 arranged brake cylinder 14 with a Cylinder chamber 14.1, with a piston 14.2 and with one Pressure fluid seal 14.3 actuated by means of a Pressure medium line 15 in connection with a Pressure device 17 belonging to the safety device stands.

In den Fig. 9 und 10 ist eine weitere Ausführungsvariante des aus Zylinderraum 14.1, Kolben 14.2, Druckmitteldichtung 14.3, Druckfeder 14.4 und Kolbendichtung 14.5 bestehenden Bremszylinders 14 dargestellt, bei dem die Bremskraft mittels der Druckfeder 14.4 erzeugt wird. Die Regelung der auf die Bremsplatte 12 wirkenden Bremskraft erfolgt durch Beaufschlagung in Gegenrichtung des Bremszylinders 14 mittels Druckmittel der Druckmitteleinrichtung 17.9 and 10 is a further embodiment variant of the cylinder chamber 14.1, piston 14.2, fluid seal 14.3, compression spring 14.4 and piston seal 14.5 existing Brake cylinder 14 shown, in which the braking force is generated by means of the compression spring 14.4. The regulation of braking force acting on the brake plate 12 is effected by Acting in the opposite direction of the brake cylinder 14 by means of pressure medium of the pressure medium device 17.

Die zur Sicherheitseinrichtung gehörende Druckmitteleinrichtung 17 weist eine von einem Motor 18 angetriebene Druckpumpe 19 auf, die aus einem Tank 19.1 Druckmittel über ein Rückschlagventil 22.2 zu einem Druckspeicher 20 fördert, bis der an einem zweiten Druckschalter 23.2 eingestellte maximale Speicherdruck erreicht ist. Fällt der Speicherdruck unterhalb einen an einem ersten Druckschalter 23.1 einstellbaren minimalen Druck, so wird der Druckspeicher 20 wieder auf den maximalen Speicherdruck aufgeladen. Der Speicherdruck ist grösser als der für den Bremsfall erforderliche Bremsdruck. Bei Überdruck schliesst ein Druckbegrenzungsventil 21 die Pumpe 19 mit dem Tank 19.1 kurz. Im Bremsfall beaufschlagen ein 3/2-Wegeventil 22 und ein Druckregelventil 22.1 den Bremszylinder 14 mit dem über die Druckmittelleitung 15 geführten Druckmittel. Nach dem Bremsfall gehen das 3/2-Wegeventil 22 und das Druckregelventil 22.1 wieder in ihren Ausgangszustand, sodass sich das Druckmittel im Bremszylinder 14 über ein einstellbares Drosselventil 22.3 zum Tank 19.1 entspannen kann. Motor 18, erster Druckschalter 23.1, zweiter Druckschalter 23.2, 3/2-Wegeventil 22 und Druckregelventil 22.1 stehen elektrisch in Verbindung mit einer zur Sicherheitseinrichtung gehörenden Regeleinrichtung 16.The one belonging to the safety device Pressure medium device 17 has one of a motor 18 driven pressure pump 19, which from a tank 19.1 Pressure medium via a check valve 22.2 to one Pressure accumulator 20 promotes until the second Pressure switch 23.2 set maximum storage pressure is reached. If the storage pressure falls below one a first adjustable minimum switch 23.1 Pressure, the pressure accumulator 20 is back on the maximum storage pressure charged. The memory pressure is greater than the brake pressure required for the braking event. In the event of overpressure, a pressure relief valve 21 closes the Pump 19 with the tank 19.1 briefly. Apply when braking a 3/2-way valve 22 and a pressure control valve 22.1 den Brake cylinder 14 with the via the pressure medium line 15 guided pressure medium. After the brake application, the 3/2-way valve goes 22 and the pressure control valve 22.1 back in their Initial state, so that the pressure medium in the Brake cylinder 14 via an adjustable throttle valve 22.3 can relax to tank 19.1. Engine 18, first Pressure switch 23.1, second pressure switch 23.2, 3/2-way valve 22 and pressure control valve 22.1 are electrical in connection with a safety device belonging control device 16.

Zum Aufbau und zur Erhaltung der Betriebsbereitschaft der Druckmitteleinrichtung 17 schaltet die in Verbindung mit der Aufzugssteuerung 27 stehende Regeleinrichtung 16 den Motor 18 aufgrund der Signale des ersten Druckschalters 23.1 und des zweiten Druckschalters 23.2 ein und aus. Fällt der Speicherdruck im Druckspeicher 20 unterhalb eines am ersten Druckschalter 23.1 einstellbaren Minimaldruckes, so schaltet die Regeleinrichtung 16 aufgrund des Druckschaltersignales den Motor 18 ein, der solange eingeschaltet bleibt, bis der am zweiten Druckschalter 23.2 einstellbare Maximaldruck erreicht ist.To build and maintain the operational readiness of the Pressure medium device 17 switches the in connection with the elevator control 27 standing control device 16 den Motor 18 based on the signals from the first pressure switch 23.1 and the second pressure switch 23.2 on and off. Falls the accumulator pressure in the accumulator 20 below an am first pressure switch 23.1 adjustable minimum pressure, see above switches the control device 16 due to the Pressure switch signal the motor 18, which lasts remains switched on until the second pressure switch 23.2 adjustable maximum pressure is reached.

Bei einem Störfall in Fahrtrichtung nach unten schaltet die Regeleinrichtung 16 aufgrund der Signale eines Beschleunigungssensors 25 oder eines Geschwindigkeitssensors 24 eines Geschwindigkeitsbegrenzers das 3/2-Wegeventil 22 ein. Das im Druckspeicher 20 unter Druck stehende Druckmittel fliesst somit mittels der Druckmittelleitung 15 zum Zylinderraum 14.1 und bewirkt, dass die Bremsplatte 12 gegen die Lauffläche 2.3 der Führungsschiene 2 gedrückt wird. Gleichzeitig misst ein am Befestigungsgehäuse 6 angeordneter Verzögerungssensor 26 die Verzögerung der Aufzugskabine 3. Aufgrund des Signales des Verzögerungssensors 26 ändert die Regeleinrichtung 16 die Einstellung des Druckregelventils 22.1. Bei Verzögerungswerten unterhalb der einfachen Erdbeschleunigung ändert die Regeleinrichtung 16 die Einstellung des Druckregelventils 22.1 derart, dass die Bremskraft des Bremszylinders 14 soweit erhöht wird, bis ein der einfachen Erdbeschleunigung entsprechender Verzögerungswert erreicht wird. Ergeben sich durch unterschiedliche Reibungsverhältnisse auf den Laufflächen 2.3 der Führungsschiene 2 Verzögerungswerte, die grösser als die einfache Erdbeschleunigung sind, so vermindert die Regeleinrichtung 16 mittels dem Druckregelventil 22.1 die Bremskraft des Bremszylinders 14 bis Verzögerungswerte entsprechend der einfachen Erdbeschleunigung erreicht sind. Die Verzögerung der Aufzugskabine 3 bleibt konstant und folgt während dem gesamten Bremsvorgang einem vorherbestimmten Wert. Die Regeleinrichtung 16 vergleicht den vorherbestimmten Wert, beispielsweise einfache Erdbeschleunigung, mit dem an der Aufzugskabine 3 mittels Verzögerungssensor 26 gemessenen Wert und gleicht Unterschiede zwischen den beiden Werten durch mehr oder weniger Beaufschlagung des Bremszylinders 14 mittels dem Druckregelventil 22.1 aus. Sobald die Aufzugskabine zum Stillstand gekommen ist, ändert die Regeleinrichtung 16 die Einstellung des Druckregelventils 22.1 derart, dass die Bremskraft des Bremszylinders 14 ihren Maximalwert erreicht. Die Aufzugskabine 3 wird dadurch im Aufzugsschacht 1 blockiert.In the event of a malfunction in the direction of travel down, the Control device 16 based on the signals of a Accelerometer 25 or one Speed sensor 24 of a speed limiter the 3/2-way valve 22 on. That in the accumulator 20 under Pressure medium thus flows by means of Pressure medium line 15 to the cylinder space 14.1 and causes that the brake plate 12 against the tread 2.3 of the Guide rail 2 is pressed. At the same time a Mounting housing 6 arranged deceleration sensor 26 the delay of the elevator car 3. Due to the signal of the delay sensor 26 changes the control device 16 the setting of the pressure control valve 22.1. At Delay values below the simple one Acceleration due to gravity changes the control device 16 Setting the pressure control valve 22.1 such that the Braking force of the brake cylinder 14 is increased until one corresponding to the simple gravitational acceleration Delay value is reached. Surrender through different friction conditions on the treads 2.3 the guide rail 2 deceleration values, the greater than the simple acceleration of gravity, so the Control device 16 by means of the pressure control valve 22.1 Braking force of the brake cylinder 14 to deceleration values according to the simple acceleration due to gravity. The delay of the elevator car 3 remains constant and follows one during the entire braking process predetermined value. The control device 16 compares the predetermined value, for example simple Acceleration due to gravity, by means of at the elevator car 3 Delay sensor 26 measured value and equal Differences between the two values by more or less exposure to the brake cylinder 14 by means of Pressure control valve 22.1 off. As soon as the elevator car to Has come to a standstill, the control device 16 changes the Setting the pressure control valve 22.1 such that the Braking force of the brake cylinder 14 its maximum value reached. The elevator car 3 is thereby in Elevator shaft 1 blocked.

Bei einem Störfall in Fahrtrichtung nach oben verläuft der Bremsvorgang im wesentlich gleich wie bei einem Störfall in Fahrtrichtung nach unten. Aufgrund der durch den Geschwindigkeitssensor 24 festgestellten entgegengesetzten Bewegungsrichtung setzt die Regeleinrichtung 16 Verzögerungswerte fest, die unterhalb der einfachen Erdbeschleunigung liegen und beeinflusst dementsprechend die Bremskraft des Bremszylinders 14.In the event of a fault in the direction of travel upwards Braking is essentially the same as in the event of an accident Direction of travel down. Because of the Speed sensor 24 detected opposite The control device 16 sets the direction of movement Delay values fixed below the simple Gravitational acceleration lie and influences accordingly the braking force of the brake cylinder 14.

Zum Be- oder Entladen der Aufzugskabine 3 auf einem bestimmten Stockwerk oder zur Wartung der Aufzugskabine 3 an einer beliebigen Stelle im Aufzugsschacht 1 wird die erfindungsgemässe Sicherheitseinrichtung manuell aktiviert. Beim Be- und Entladen verhindert die aktivierte Sicherheitseinrichtung das Ein- beziehungsweise das Ausfedern der Aufzugskabine 3. Bei Wartungsarbeiten wird die Sicherheitseinrichtung zur Festsetzung der Aufzugskabine 3 an einer beliebigen Schachtstelle verwendet. Die Aktivierung der Sicherheitseinrichtung erfolgt mittels der Aufzugssteuerung 27, die ihrerseits mittels nicht dargestellter manueller Schalter in den jeweiligen Betriebszustand gebracht wird. Die Regeleinrichtung 16 schaltet dabei das 3/2-Wegeventil 22 ein und stellt das Druckregelventil 22.1 auf Maximalwert ein, sodass die Aufzugskabine 3 mit maximaler Bremskraft des Bremszylinders 14 an den Führungsschienen 2 festgehalten wird. Zum Freisetzen der Aufzugskabine 3 werden das 3/2-Wegeventil 22 und das Druckregelventil 22.1 ausgeschaltet, wobei sich das Druckmittel im Bremszylinder 14 über das Drosselventil 22.3 zum Tank 19.1 entspannen kann. Die Geschwindigkeit des Bremskraftabbaus ist an dem Drosselventil 22.3 einstellbar.For loading or unloading the elevator car 3 on one certain floor or for maintenance of the elevator car 3 at any point in the elevator shaft 1 The safety device according to the invention is activated manually. The activated prevents loading and unloading Security device the one or the Rebound of the elevator car 3. During maintenance work the security device for fixing the Elevator car 3 at any shaft location used. Activation of the safety device takes place by means of the elevator control 27, which in turn by means of manual switches (not shown) in the is brought into the respective operating state. The Control device 16 switches the 3/2-way valve 22 and sets the pressure control valve 22.1 to the maximum value so that the elevator car 3 with maximum braking force of the brake cylinder 14 on the guide rails 2 is held. To release the elevator car 3 the 3/2-way valve 22 and the pressure control valve 22.1 switched off, the pressure medium in the brake cylinder 14 relax via the throttle valve 22.3 to the tank 19.1 can. The speed of the brake force reduction is at that Throttle valve 22.3 adjustable.

In Fig. 12 ist eine weitere Ausführungsvariante der Druckmitteleinrichtung 17 dargestellt, welche die in den Fig. 9 und 10 dargestellte Ausführungsvariante des Bremszylinders 14 berücksichtigt. Im drucklosen Zustand presst die Druckfeder 14.4 die Bremsplatten 12 gegen die Laufflächen 2.3 der Führungsschiene 2. Dadurch ist die Aufzugskabine 3 mit maximaler Bremskraft an den Führungsschienen 2 festgesetzt. Zum Aufbau und zur Erhaltung der Betriebsbereitschaft der Druckmitteleinrichtung 17 schaltet die in Verbindung mit der Aufzugssteuerung 27 stehende Regeleinrichtung 16 den Motor 18 aufgrund der Signale des ersten Druckschalters 23.1 und des zweiten Druckschalters 23.2 ein und aus. Fällt der Speicherdruck im Druckspeicher 20 unterhalb eines am ersten Druckschalter 23.1 einstellbaren Minimaldruckes, so schaltet die Regeleinrichtung 16 aufgrund des Druckschaltersignales den Motor 18 ein, der solange eingeschaltet bleibt, bis der am zweiten Druckschalter 23.2 einstellbare Maximaldruck erreicht ist. Der Speicherdruck ist grösser als der für den Bremsfall erforderliche Bremsdruck. Nun schaltet die Regeleinrichtung 16 ein 2/2-Wegeventil 22.4 ein, es fliesst Druckmittel in den Zylinderraum 14.1, wodurch die Druckfeder 14.4 zusammengedrückt wird. Beim Erreichen des am vierten Druckschalter 23.4 einstellbaren maximalen Bremsdruckes schliesst die Regeleinrichtung 16 das 2/2-Wegeventil 22.4, währenddem das Druckregelventil 22.1 so eingestellt ist, dass kein Druckmittel zum Tank 19.1 abfliessen kann. In diesem Betriebszustand der Druckmitteleinrichtung 17 sind die Bremsplatten von den Laufflächen 2.3 der Führungsschiene 2 abgehoben. Falls der Bremsdruck unterhalb eines an einem dritten Druckschalter 23.3 einstellbaren minimalen Bremsdruckes fällt, wird das 2/2-Wegeventil 22.4 solange eingeschaltet, bis der Bremsdruck wieder der maximalen Wert erreicht hat.12 is a further embodiment variant of the Pressure medium device 17 shown, which in the 9 and 10 shown embodiment of the Brake cylinder 14 considered. When depressurized the compression spring 14.4 presses the brake plates 12 against the Treads 2.3 of the guide rail 2. This is the Elevator car 3 with maximum braking force on the Guide rails 2 fixed. To build and to Maintenance of the operational readiness of the Pressure medium device 17 switches the in connection with the elevator control 27 standing control device 16 den Motor 18 based on the signals from the first pressure switch 23.1 and the second pressure switch 23.2 on and off. Falls the accumulator pressure in the accumulator 20 below an am first pressure switch 23.1 adjustable minimum pressure, see above switches the control device 16 due to the Pressure switch signal the motor 18, which lasts remains switched on until the second pressure switch 23.2 adjustable maximum pressure is reached. The memory pressure is greater than that required for braking Brake pressure. Now the control device 16 switches a 2/2-way valve 22.4, pressure medium flows into the Cylinder chamber 14.1, whereby the compression spring 14.4 is squeezed. When reaching the fourth Pressure switch 23.4 adjustable maximum brake pressure the control device 16 closes the 2/2-way valve 22.4, while the pressure control valve 22.1 is set so that no pressure medium can flow to tank 19.1. In this operating state of the pressure medium device 17 the brake plates from the tread 2.3 Guide rail 2 lifted off. If the brake pressure is below one adjustable at a third pressure switch 23.3 minimum brake pressure falls, the 2/2-way valve 22.4 switched on until the brake pressure again has reached the maximum value.

Bei einem Störfall in Fahrtrichtung nach unten stellt die Regeleinrichtung 16 aufgrund der Signale eines Beschleunigungssensors 25 oder eines Geschwindigkeitssensors 24 eines Geschwindigkeitsbegrenzers das Druckregelventil 22.1 derart ein, dass der Druck im Zylinderraum 14.1 soweit reduziert wird, dass die Druckfeder 14.4 die Bremsplatten 12 an die Laufflächen 2.3 andrückt und eine Bremswirkung erzielt wird. Gleichzeitig misst ein am Befestigungsgehäuse 6 angeordneter Verzögerungssensor 26 die Verzögerung der Aufzugskabine 3. Aufgrund des Signales des Verzögerungssensors 26 ändert die Regeleinrichtung 16 die Einstellung des Druckregelventils 22.1. Bei Verzögerungswerten unterhalb der einfachen Erdbeschleunigung ändert die Regeleinrichtung 16 die Einstellung des Druckregelventils 22.1 derart, dass die Bremskraft des Bremszylinders 14 soweit reduziert wird, bis ein der einfachen Erdbeschleunigung entsprechender Verzögerungswert erreicht wird. Ergeben sich durch unterschiedliche Reibungsverhältnisse auf den Laufflächen 2.3 der Führungsschiene 2 Verzögerungswerte, die grösser als die einfache Erdbeschleunigung sind, so korrigiert die Regeleinrichtung 16 durch entsprechende Einstellung des Druckregelventils 22.1 und durch Einschalten des 2/2-Wegeventils 22.4 die Bremskraft des Bremszylinders 14 bis Verzögerungswerte entsprechend der einfachen Erdbeschleunigung erreicht sind. Die Verzögerung der Aufzugskabine 3 bleibt konstant und folgt während dem gesamten Bremsvorgang einem vorherbestimmten Wert. Die Regeleinrichtung 16 vergleicht den vorherbestimmten Wert, beispielsweise einfache Erdbeschleunigung, mit dem an der Aufzugskabine 3 mittels Verzögerungssensor 26 gemessenen Wert und gleicht Unterschiede zwischen den beiden Werten durch mehr oder weniger Beaufschlagung des Bremszylinders 14 mittels dem 2/2-Wegeventil 22.4 und dem Druckregelventil 22.1 aus. Sobald die Aufzugskabine zum Stillstand gekommen ist, schliesst die Regeleinrichtung 16 das 2/2-Wegeventil 22.4 und ändert die Einstellung des Druckregelventils 22.1 derart, dass die Druckfeder 14.4 die Bremsplatten 12 mit maximaler Federkraft gegen die Laufflächen 2.3 der Führungsschiene 2 presst. Die Aufzugskabine 3 wird dadurch im Aufzugsschacht 1 blockiert.In the event of a malfunction in the direction of travel, the Control device 16 based on the signals of a Accelerometer 25 or one Speed sensor 24 of a speed limiter the pressure control valve 22.1 such that the pressure in Cylinder space 14.1 is reduced to such an extent that the Compression spring 14.4, the brake plates 12 on the running surfaces 2.3 presses and a braking effect is achieved. At the same time measures a arranged on the mounting housing 6 Delay sensor 26 the delay of the elevator car 3. Due to the signal of the delay sensor 26, the Control device 16 the setting of the pressure control valve 22.1. At deceleration values below the simple Acceleration due to gravity changes the control device 16 Setting the pressure control valve 22.1 such that the Braking force of the brake cylinder 14 is reduced until one corresponding to the simple gravitational acceleration Delay value is reached. Surrender through different friction conditions on the treads 2.3 the guide rail 2 deceleration values, the greater than the simple gravitational acceleration are corrected Control device 16 by appropriate setting of Pressure control valve 22.1 and by switching on the 2/2-way valve 22.4 the braking force of the brake cylinder 14 to Delay values according to the simple Gravitational acceleration are reached. The delay of Elevator car 3 remains constant and follows during entire braking operation a predetermined value. The Control device 16 compares the predetermined value, for example, simple gravitational acceleration with which at the Elevator car 3 measured by means of deceleration sensor 26 Value and equalize differences between the two values by applying more or less pressure to the brake cylinder 14 by means of the 2/2-way valve 22.4 and the pressure control valve 22.1 off. As soon as the elevator car came to a standstill is, the control device 16 closes the 2/2-way valve 22.4 and changes the setting of the pressure control valve 22.1 such that the compression spring 14.4 with the brake plates 12 maximum spring force against the tread 2.3 Guide rail 2 presses. The elevator car 3 is thereby blocked in elevator shaft 1.

Bei einem Störfall in Fahrtrichtung nach oben verläuft der Bremsvorgang im wesentlich gleich wie beim einem Störfall in Fahrtrichtung nach unten. Aufgrund der durch den Geschwindigkeitssensor 24 festgestellten entgegengesetzten Bewegungsrichtung setzt die Regeleinrichtung 16 Verzögerungswerte fest, die unterhalb der einfachen Erdbeschleunigung liegen und beeinflusst dementsprechend die Bremskraft des Bremszylinders 14.In the event of a fault in the direction of travel upwards Braking is essentially the same as in the event of an accident down in the direction of travel. Because of the Speed sensor 24 detected opposite The control device 16 sets the direction of movement Delay values fixed below the simple Gravitational acceleration lie and influences accordingly the braking force of the brake cylinder 14.

Zum Be- oder Entladen der Aufzugskabine 3 auf einem bestimmten Stockwerk oder zur Wartung der Aufzugskabine 3 an einer beliebigen Stelle im Aufzugsschacht 1 wird die erfindungsgemässe Sicherheitseinrichtung manuell aktiviert. Beim Be- und Entladen verhindert die aktivierte Sicherheitseinrichtung das Ein- beziehungsweise das Ausfedern der Aufzugskabine 3. Bei Wartungsarbeiten wird die Sicherheitseinrichtung zur Festsetzung der Aufzugskabine 3 an einer beliebigen Schachtstelle verwendet. Die Aktivierung der Sicherheitseinrichtung erfolgt mittels der Aufzugssteuerung 27, die ihrerseits mittels nicht dargestellter manueller Schalter in den jeweiligen Betriebszustand gebracht wird. Die Regeleinrichtung 16 ändert die Einstellung des Druckregelventils 22.1 derart, dass die Druckfeder 14.4 die Bremsplatten 12 mit maximaler Federkraft gegen die Laufflächen 2.3 der Führungsschiene 2 presst, sodass die Aufzugskabine 3 an den Führungsschienen 2 festgehalten wird. Zum Freisetzen der Aufzugskabine 3 schaltet die Regeleinrichtung 16 das 2/2-Wegeventil 22.4 ein, währenddem das Druckregelventil 22.1 so eingestellt wird, dass kein Druckmittel zum Tank 19.1 abfliessen kann. In diesem Betriebszustand der Druckmitteleinrichtung 17 sind die Bremsplatten 12 von den Laufflächen 2.3 der Führungsschiene 2 abgehoben, die Aufzugskabine ist wieder frei beweglich.For loading or unloading the elevator car 3 on one certain floor or for maintenance of the elevator car 3 at any point in the elevator shaft 1 The safety device according to the invention is activated manually. The activated prevents loading and unloading Security device the one or the Rebound of the elevator car 3. During maintenance work the security device for fixing the Elevator car 3 at any shaft location used. Activation of the safety device takes place by means of the elevator control 27, which in turn by means of manual switches (not shown) in the is brought into the respective operating state. The Control device 16 changes the setting of the Pressure control valve 22.1 such that the compression spring 14.4 Brake plates 12 with maximum spring force against the Treads 2.3 of the guide rail 2 presses so that the Elevator car 3 held on the guide rails 2 becomes. To release the elevator car 3 switches Control device 16, the 2/2-way valve 22.4, while the pressure control valve 22.1 is set so that no Pressure medium can flow to tank 19.1. In this Operating state of the pressure medium device 17 are Brake plates 12 from the running surfaces 2.3 of the guide rail 2 lifted off, the elevator car is freely movable again.

Claims (12)

  1. Safety equipment for a lift cage (3) with a braking equipment (9) engaging at a guide rail (2), wherein the braking force exerted by the braking equipment (9) on the guide rail (2) is regulated by a regulating equipment (16), characterised thereby, that the braking equipment (9) embraces a free limb (2.2), which is provided with running surfaces (2.3), of the guide rail (2), wherein a respective brake plate (12) carried by a brake plate holder (12.1) is provided for each running surface (2.3) and that at least one brake plate (12) is actuable by means of a brake cylinder (14), wherein the brake cylinder (14) is loadable by means of a pressure which is produced in a pressure medium by means of a pressure medium equipment (17) and regulated by means of the regulating equipment (16).
  2. Safety equipment according to claim 1, characterised thereby, that the braking equipment (9) is guided by a fastening housing (6) arranged at a carrier frame (4), wherein the fastening housing (6) displays recesses (7), into which guides (8) of the braking equipment (9) engage.
  3. Safety equipment according to claim 2, characterised thereby, that elastic intermediate layers (10), at which the guides (8) of the braking equipment (9) are so retained and guided that the braking equipment (9) is capable of following deviations from verticality and tolerances of the guide rail (2) during the braking operation, are arranged at the recesses (7).
  4. Safety equipment according to the claims 2 and 3, characterised thereby, that the fastening housing (6) is arranged at an upper yoke (4.1) of the carrier frame (4).
  5. Safety equipment according to the claims 2 and 3, characterised thereby, that the fastening housing (6) is arranged at a lower yoke (4.2) of the carrier frame (4).
  6. Safety equipment according to claim 1, characterised thereby, that a retardation sensor (26) is provided, which is arranged at the fastening housing (6) and which in interaction with the regulating equipment (16) keeps the retardation of the lift cage (3) at a predetermined value during the braking operation.
  7. Safety equipment according to claim 6, characterised thereby, that the regulating equipment (16) is activatable by means of a speed sensor (24) and an acceleration sensor (25) in the case of a fault.
  8. Safety equipment according to claim 6, characterised thereby, that the regulating equipment (16) is activatable by means of a lift control (27) during the loading and unloading of the lift cage (3) and during maintenance operations, wherein the lift control (27) is manually settable into the respective operating state.
  9. Safety equipment according to claim 1, characterised thereby, that the pressure medium equipment (17), which stands in connection with the - regulating equipment (16), comprises a motor (18), a pressure pump (19), a pressure storage device (20), pressure switches (23.1, 23.2, 23.3, 23.4), valves (21, 22, 22.1, 22.2, 22.3, 22.4) and pressure medium ducts (15), wherein a pressure-regulating valve (22.1) controls the pressure medium led to the brake cylinder (14).
  10. Safety equipment according to claim 1, characterised thereby, that the brake plate (12) displays a brake sensor (13) for monitoring the wear of the brake plate (12).
  11. Safety equipment according to claim 1, characterised thereby, that the brake cylinder (14) displays a piston (14.2), which is arranged in a cylinder chamber (14.1) and acts on the brake plate holder (12.1), for the production of the braking force.
  12. Safety equipment according to claim 11, characterised thereby, that the brake cylinder (14) displays a compression spring (14.4) for the production of the braking force, wherein the loading of the brake cylinder (14) takes place against the compression spring (14.4).
EP93116780A 1993-10-18 1993-10-18 Safety braking device for an elevator Expired - Lifetime EP0648703B1 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
EP93116780A EP0648703B1 (en) 1993-10-18 1993-10-18 Safety braking device for an elevator
DE59309330T DE59309330D1 (en) 1993-10-18 1993-10-18 Brake safety device for an elevator car
AT93116780T ATE175946T1 (en) 1993-10-18 1993-10-18 BRAKE SAFETY DEVICE FOR AN ELEVATOR CABIN
ES93116780T ES2129480T3 (en) 1993-10-18 1993-10-18 BRAKING SAFETY DEVICE FOR ELEVATOR CABINS.
DK93116780T DK0648703T3 (en) 1993-10-18 1993-10-18 Safety brake for a lift cabin
AU74323/94A AU675162B2 (en) 1993-10-18 1994-09-30 Safety equipment for a lift cage
CA002118107A CA2118107C (en) 1993-10-18 1994-10-13 Safety equipment for a lift cage
CN94117290A CN1038242C (en) 1993-10-18 1994-10-17 Safety equipment for a lift cage
BR9404131A BR9404131A (en) 1993-10-18 1994-10-17 Safety device for an elevator car
FI944867A FI107728B (en) 1993-10-18 1994-10-17 Safety device for elevator basket
US08/324,789 US5648644A (en) 1993-10-18 1994-10-18 Brake regulating apparatus for an elevator car
JP25239194A JP3675861B2 (en) 1993-10-18 1994-10-18 Elevator / Cage Safety Device
HK98112331A HK1011335A1 (en) 1993-10-18 1998-11-26 Safety braking device for an elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93116780A EP0648703B1 (en) 1993-10-18 1993-10-18 Safety braking device for an elevator

Publications (2)

Publication Number Publication Date
EP0648703A1 EP0648703A1 (en) 1995-04-19
EP0648703B1 true EP0648703B1 (en) 1999-01-20

Family

ID=8213347

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116780A Expired - Lifetime EP0648703B1 (en) 1993-10-18 1993-10-18 Safety braking device for an elevator

Country Status (13)

Country Link
US (1) US5648644A (en)
EP (1) EP0648703B1 (en)
JP (1) JP3675861B2 (en)
CN (1) CN1038242C (en)
AT (1) ATE175946T1 (en)
AU (1) AU675162B2 (en)
BR (1) BR9404131A (en)
CA (1) CA2118107C (en)
DE (1) DE59309330D1 (en)
DK (1) DK0648703T3 (en)
ES (1) ES2129480T3 (en)
FI (1) FI107728B (en)
HK (1) HK1011335A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1657203A2 (en) 2004-11-12 2006-05-17 Mayer GmbH & Co. KG Guided lifting device with damped emergency braking device
EP1657204A2 (en) 2004-11-12 2006-05-17 Mayer GmbH & Co. KG Guided lifting device with holding and emergency braking device
WO2011157627A1 (en) 2010-06-15 2011-12-22 Inventio Ag Holding brake with locking mechanism

Families Citing this family (98)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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FI944867A (en) 1995-04-19
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US5648644A (en) 1997-07-15
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HK1011335A1 (en) 1999-07-09
EP0648703A1 (en) 1995-04-19
CN1109442A (en) 1995-10-04
DK0648703T3 (en) 1999-09-13
CA2118107C (en) 2005-08-16
DE59309330D1 (en) 1999-03-04
AU675162B2 (en) 1997-01-23
JPH07157232A (en) 1995-06-20
ATE175946T1 (en) 1999-02-15

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