EP0968954B1 - Safety brake device, particularly for lift cabins - Google Patents

Safety brake device, particularly for lift cabins Download PDF

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Publication number
EP0968954B1
EP0968954B1 EP98810624A EP98810624A EP0968954B1 EP 0968954 B1 EP0968954 B1 EP 0968954B1 EP 98810624 A EP98810624 A EP 98810624A EP 98810624 A EP98810624 A EP 98810624A EP 0968954 B1 EP0968954 B1 EP 0968954B1
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EP
European Patent Office
Prior art keywords
brake device
brake shoe
safety brake
housing
wedge
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
EP98810624A
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German (de)
French (fr)
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EP0968954A1 (en
Inventor
Ervin Perroud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
COBIANCHI LIFTTEILE AG
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COBIANCHI LIFTTEILE 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 COBIANCHI LIFTTEILE AG filed Critical COBIANCHI LIFTTEILE AG
Priority to DE59808283T priority Critical patent/DE59808283D1/en
Priority to ES98810624T priority patent/ES2198678T3/en
Priority to EP98810624A priority patent/EP0968954B1/en
Priority to AT98810624T priority patent/ATE239663T1/en
Priority to PCT/CH1999/000280 priority patent/WO2000001604A1/en
Priority to AU43564/99A priority patent/AU4356499A/en
Publication of EP0968954A1 publication Critical patent/EP0968954A1/en
Application granted granted Critical
Publication of EP0968954B1 publication Critical patent/EP0968954B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—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

Definitions

  • the present invention relates to a brake safety device, in particular for elevator cars, with one that can be loaded with at least one spring assembly first brake shoe to interact with a rail and at least one wedge-shaped, slidable between the rail and a housing stored second and / or third brake shoe with at least one in one Opening of the second and / or third brake shoe mounted rolling elements.
  • the first one is fixed vertically Brake shoe formed in two parts, the facing surfaces of the two parts form an inclined plane.
  • This version is complex to manufacture and associated with relatively high costs. Furthermore, the lower and upper wedge-shaped brake shoes not set independently become. It is an object of the present invention to provide a brake safety device to create especially for elevator cars, which the Does not have disadvantages of the prior art. This is according to the invention achieved in that between at least one surface inclined to the vertical of the housing and the at least second and / or third wedge-shaped Brake shoe at least one slidably arranged resilient by a spring member Plate is provided.
  • the brake safety catch is easy to release from the catch.
  • the Roll plates have the same function as the inclined plane of the first vertical brake shoe.
  • the second lower and the third upper wedge-shaped brake shoes have the same design, which makes their manufacture easier.
  • the lower wedge-shaped can be placed under the one plate Brake shoe and the upper wedge-shaped brake shoe set differently become.
  • the performance remains the same as the subject of the above published PCT application.
  • the construction is simpler and less susceptible to interference.
  • One of the wedge-shaped brake shoes is made by adjusting the spring assembly the first vertically fixed brake shoe, the other wedge-shaped Brake shoe with spacer plate between the L-shaped roller plate and the housing.
  • Fig. 1 shows a front view of the brake safety device 1.
  • This comprises two holding plates 2 and 3 and two horizontally arranged in between Bars 4 and 5.
  • Bars 4 and 5 are at the top with screws 6, 7, 8 and 9 attached to the holding plates 2 and 3.
  • the rod 5 is still with one Provide spring 10.
  • the rods 4 and 5 consider the housing 11 as a first, in the vertical fixed brake shoe 12, a second lower wedge-shaped brake shoe 13 and a third upper wedge-shaped brake shoe 14.
  • the first brake shoe 12 is loaded by two spring assemblies 16 and 17 guided by bolts 15.
  • the fixed brake shoe 12 presses on the rail 18 in the catching position.
  • Above the housing 11 in the area of the lower and upper wedge-shaped brake shoes 13 and 14, a guide plate 19 is arranged above the housing 11 in the area of the lower and upper wedge-shaped brake shoes 13 and 14, a guide plate 19 is arranged.
  • FIG. 2 shows a view from above according to arrow A in FIG. 1.
  • a tab 27 bent by the lever 23 can also be seen.
  • the square-shaped axis of rotation 28 connected to the lever 23 is on the Cabin stored and connects the two catch heads to synchronize the release to design.
  • Fig. 3 shows a front view, partly in section, of the brake safety device.
  • the lower and upper wedge-shaped brake shoes 13 and 14 are located yourself at rest.
  • the two brake shoes 13 and 14 are on their narrow end connected by a rod 29.
  • rolling elements 30 and 31 are arranged.
  • the rolling elements can be cylindrical or spherical. During training as a cylindrical roll it can be smooth, knurled, milled or flanged his.
  • the central openings 32 and 33 in the rolling elements 30 and 31 are slightly larger than the bolts 34 and 35 around which the rolling elements are rotate.
  • the holes 36 and 37 in the lower wedge-shaped brake shoe and the holes 38 and 39 in the upper wedge-shaped brake shoe serve for slidably attaching the brake shoes 13 and 14 in the slots 20 and 21 of the guide plate 19.
  • the bore 40 at the top of the upper wedge-shaped and the bore 74 at the bottom of the lower wedge-shaped brake shoe serve for Attach the trigger mechanism 23, 27, depending on whether the installation of the Safety gear at the top or bottom of the cabin.
  • the lower and upper wedge-shaped brake shoe 13 and 14 facing, angled Parts 41 and 42 of the housing are L-shaped cast or milled Roll plates 43 and 44 created.
  • the roller plates slide on the angled ones Parts 41 and 42 of the housing.
  • the roller plates point to them facing ends each have a recess 45 and 46.
  • Two with compression springs 47 and 48 provided screws 49 and 50 are in bores 51 and 52 of the short Legs 53 and 54 of the roller plates 43 and 44 and in holes 55 and 56 used in the housing 11.
  • the compression springs 47, 48 are concentric with the Screws 49, 50 arranged. Close the short legs 53 and 54 long legs 72 and 73.
  • the first brake shoe 12 and the lower one and the upper wedge-shaped brake shoe 13 and 14 are facing the rail 18 Side with transverse grooves 57, 58 and 59. With a screw 60 the first brake shoe 12 and the housing 11 are held together. in the furthermore, this screw causes a small preload of the plate springs 16 and 17. From this figure, the second pin 61 is the fixed one Brake shoe visible.
  • roller plates 43 and 44 have the same function as the inclined plane of the first brake shoe according to the published PCT application PCT / CH97 / 00075.
  • the washers 62, 63 are the pressure of the plate spring assemblies 16, 17 on the brake shoe 12 or on the downward braking wedge 13 or the wedge 14 braking upwards.
  • One of the roller plates 43, 44 is something thinner than the other roller plate 43.
  • the Housing 11 is built symmetrically, which allows for left and right, above or to use only one housing version at the bottom of the lift cabin, whereby the variety of warehousing is halved.
  • the angle of the roller plates 43 and 44, the oblique sides 64 and 65 of the lower and upper wedge-shaped Brake shoe 13 and 14 and the angled parts 41 and 42 of the housing 11 have an angle with respect to the rail of about 5 to 8 °. at too small an angle results in a hard loosening from the catch; at a too large an angle is not braked when pulling in.
  • the lower wedge-shaped brake shoe is in engagement Condition after the upper, not shown in this figure wedge-shaped brake shoe 14 was raised by the release lever 23.
  • the roller 30 of the lower wedge-shaped brake shoe rolls between the lower roller plate 43 and the rail 18 upper brake shoe 14, i.e. when braking upwards, the roller 31 rolls between the upper roller plate 44 and the rail 18.
  • Fig. 5 the safety gear is in the braking position against shown below.
  • the roller 30 has receded somewhat into the recess 45 and the lower brake shoe 13 is between the lower roller plate 43 and the Rail 18 wedged.
  • the safety gear connected to the lift cabin the lift cabin stops in this position.
  • the first brake shoe 12 and the lower one wedge-shaped brake shoe 13 lie with its between the transverse grooves 57 and 58 parts located firmly on the rail 18.
  • the upper wedge-shaped Brake shoe 14 is not shown in this figure.
  • the brake safety device is in the disengaged position located.
  • the lower wedge-shaped brake shoe 13 slides with the lower one Roller plate 43 down, the compression spring 47 is compressed.
  • the compression springs 47 arranged concentrically with the screws 49 and 50 and 48 cause the roller plates 43, 44 to release after being released from the catch go back to the basic position.
  • Fig. 7 is a longitudinal section through the housing 11 of the brake safety device shown.
  • the housing is symmetrical to the central plane B and can therefore be used on the left and right, top or bottom of the lift cabin become.
  • the bores 66 and 67 serve to receive the bolts 15 and 61.
  • the recesses 68 and 69 serve to receive the adjusting washers 62 and 63.
  • the recess 70 serves to receive the screw 60.

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

Abstract

The brake device has a brake pad (12) acted on by at least one spring packet (16,17), for biasing it against a rail (18), and a wedge-shaped brake pad (13,14) between the opposite side of the rail and a housing (11). The surfaces (41,42) of the pad are inclined to the vertical. Angled rolling plates are provided between the wedge-shaped brake pads and the housing surfaces.

Description

Die vorliegende Erfindung betrifft eine Bremsfangvorrichtung, insbesondere für Aufzugskabinen, mit einer durch mindestens ein Federpaket belastbaren ersten Bremsbacke zum Zusammenwirken mit einer Schiene und mindestens einer keilförmigen, zwischen Schiene und einem Gehäuse gleitbar gelagerten zweiten und/oder dritten Bremsbacke mit mindestens einem in einer Öffnung der zweiten und/oder dritten Bremsbacke gelagerten Wälzkörper.The present invention relates to a brake safety device, in particular for elevator cars, with one that can be loaded with at least one spring assembly first brake shoe to interact with a rail and at least one wedge-shaped, slidable between the rail and a housing stored second and / or third brake shoe with at least one in one Opening of the second and / or third brake shoe mounted rolling elements.

Aus der veröffentlichten PCT-Anmeldung PCT/CH97/00075 (WO-A-9731852) ist eine Bremsfangvorrichtung, insbesondere für Aufzugskabinen bekannt, welche sowohl für den herkömmlichen Fang nach unten als auch für den Fang nach oben verwendet werden kann.One is from the published PCT application PCT / CH97 / 00075 (WO-A-9731852) Brake safety device, especially known for elevator cars, which both for the conventional catch down as well as for the catch up can be used.

Bei dieser Bremsfangvorrichtung ist die erste in der Vertikalen feste Bremsbacke zweiteilig ausgebildet, wobei die einander zugewandten Flächen der beiden Teile eine schiefe Ebene bilden. Diese Ausführung ist aufwendig herzustellen und mit relativ hohen Kosten verbunden. Im weiteren können die untere und obere keilförmige Bremsbacke nicht unabhängig voneinander eingestellt werden. Es ist eine Aufgabe der vorliegenden Erfindung, eine Bremsfangvorrichtung, insbesondere für Aufzugskabinen zu schaffen, welche die Nachteile des Standes der Technik nicht aufweist. Dies wird erfindungsgemäss dadurch erzielt, dass zwischen mindestens einer zur Vertikalen schrägen Fläche des Gehäuses und der mindestens zweiten und/oder dritten keilförmigen Bremsbacke mindestens eine durch ein Federorgan belastbare, gleitbar angeordnete Platte vorgesehen ist.With this safety gear, the first one is fixed vertically Brake shoe formed in two parts, the facing surfaces of the two parts form an inclined plane. This version is complex to manufacture and associated with relatively high costs. Furthermore, the lower and upper wedge-shaped brake shoes not set independently become. It is an object of the present invention to provide a brake safety device to create especially for elevator cars, which the Does not have disadvantages of the prior art. This is according to the invention achieved in that between at least one surface inclined to the vertical of the housing and the at least second and / or third wedge-shaped Brake shoe at least one slidably arranged resilient by a spring member Plate is provided.

Die Bremsfangvorrichtung ist einfach aus dem Fang zu lösen. Die Rollplatten haben die gleiche Funktion wie früher die schiefe Ebene der ersten in der Vertikalen festen Bremsbacke. Die zweite untere und die dritte obere keilförmige Bremsbacke sind gleich ausgebildet, was deren Fabrikation erleichtert. Durch Unterlegen der einen Platte können die untere keilförmige Bremsbacke und die obere keilförmige Bremsbacke verschieden eingestellt werden. Die Leistung bleibt gleich wie beim Gegenstand der oben erwähnten veröffentlichten PCT-Anmeldung. Die Konstruktion ist einfacher und weniger störanfällig. Eine der keilförmigen Bremsbacken wird durch Einstellen des Federpakets der ersten vertikal festen Bremsbacke eingestellt, die andere keilförmige Bremsbacke mit Distanzplättchen zwischen der L-förmigen Rollplatte und dem Gehäuse.The brake safety catch is easy to release from the catch. The Roll plates have the same function as the inclined plane of the first vertical brake shoe. The second lower and the third upper wedge-shaped brake shoes have the same design, which makes their manufacture easier. The lower wedge-shaped can be placed under the one plate Brake shoe and the upper wedge-shaped brake shoe set differently become. The performance remains the same as the subject of the above published PCT application. The construction is simpler and less susceptible to interference. One of the wedge-shaped brake shoes is made by adjusting the spring assembly the first vertically fixed brake shoe, the other wedge-shaped Brake shoe with spacer plate between the L-shaped roller plate and the housing.

Bevorzugte Ausführungsformen ergeben sich aus den abhängigen Ansprüchen.Preferred embodiments result from the dependent ones Claims.

Im folgenden wird anhand der beiliegenden Zeichnung ein Ausführungsbeispiel der Erfindung näher beschrieben. Es zeigen

  • Fig. 1 eine Ansicht der Bremsfangvorrichtung von vorne,
  • Fig. 2 eine Ansicht der Bremsfangvorrichtung gemäss Fig. 1 von oben, Pfeil A,
  • Fig. 3 die Bremsfangvorrichtung im Ruhezustand,
  • Fig. 4 die Bremsfangvorrichtung mit der einrückenden unteren keilförmigen Bremsbacke,
  • Fig. 5 die Bremsfangvorrichtung mit der unteren keilförmigen Bremsbacke in Bremsstellung,
  • Fig. 6 die Bremsfangvorrichtung mit der ausrückenden unteren Bremsbacke,
  • Fig. 7 einen Vertikalschnitt durch das Gehäuse der Bremsfangvorrichtung.
    • In the following an embodiment of the invention will be described with reference to the accompanying drawings. Show it
  • 1 is a front view of the safety gear,
  • 2 shows a view of the brake safety device according to FIG. 1 from above, arrow A,
  • 3 shows the brake safety device in the idle state,
  • 4 shows the safety gear with the engaging lower wedge-shaped brake shoe,
  • 5 shows the safety gear with the lower wedge-shaped brake shoe in the braking position,
  • 6 shows the safety gear with the disengaging lower brake shoe,
  • Fig. 7 is a vertical section through the housing of the brake safety device.

    • Fig. 1 zeigt eine Vorderansicht der Bremsfangvorrichtung 1. Diese umfasst zwei Halteplatten 2 und 3 und zwei dazwischen horizontal angeordnete Stangen 4 und 5. Die Stangen 4 und 5 sind oben mit Schrauben 6, 7, 8 und 9 an den Halteplatten 2 und 3 befestigt. Die Stange 5 ist noch mit einer Feder 10 versehen. Die Stangen 4 und 5 halten das Gehäuse 11 für eine erste, in der Vertikalen feste Bremsbacke 12, eine zweite untere keilförmige Bremsbacke 13 und eine dritte obere keilförmige Bremsbacke 14. Die erste Bremsbacke 12 ist durch zwei, durch Bolzen 15 geführte Federpakete 16 und 17 belastet. Die feste Bremsbacke 12 drückt in der Fangstellung auf die Schiene 18. Über dem Gehäuse 11 im Bereich der unteren und oberen keilförmigen Bremsbacken 13 und 14 ist eine Führungsplatte 19 angeordnet. In der Führungsplatte sind zwei Schlitze 20 und 21 vorgesehen, die parallel zur in bezug auf die Schiene schrägen Seite der unteren und oberen keilförmigen Bremsbacke verlaufen. Ein um einen Drehpunkt 22 drehbarer Hebel 23 ist mit einem Verbindungsstück 24 verbunden. Das Verbindungsstück 24 ist mit einem im Liftschacht umlaufenden Seil 25 verbunden. Es wird auf die veröffentlichte PCT-Anmeldung PCT/CH97/00075 verwiesen. In der Mitte des Gehäuses 11 zwischen den Schrauben 8 und 9 ist eine Anschlagschraube 26 angeordnet.Fig. 1 shows a front view of the brake safety device 1. This comprises two holding plates 2 and 3 and two horizontally arranged in between Bars 4 and 5. Bars 4 and 5 are at the top with screws 6, 7, 8 and 9 attached to the holding plates 2 and 3. The rod 5 is still with one Provide spring 10. The rods 4 and 5 consider the housing 11 as a first, in the vertical fixed brake shoe 12, a second lower wedge-shaped brake shoe 13 and a third upper wedge-shaped brake shoe 14. The first brake shoe 12 is loaded by two spring assemblies 16 and 17 guided by bolts 15. The fixed brake shoe 12 presses on the rail 18 in the catching position. Above the housing 11 in the area of the lower and upper wedge-shaped brake shoes 13 and 14, a guide plate 19 is arranged. In the guide plate there are two slots 20 and 21 which are parallel to one another with respect to the rail sloping side of the lower and upper wedge-shaped brake shoe run. A lever 23 rotatable about a pivot point 22 is provided with a connecting piece 24 connected. The connector 24 is with one in the elevator shaft circulating rope 25 connected. It is based on the published PCT application PCT / CH97 / 00075. In the middle of the housing 11 between the screws 8 and 9 a stop screw 26 is arranged.

    In Fig. 2 ist eine Ansicht von oben gemäss Pfeil A der Fig. 1 dargestellt. Weiter ist noch eine vom Hebel 23 abgebogene Lasche 27 ersichtlich. Die mit dem Hebel 23 verbundene, vierkantförmige Drehachse 28 ist an der Kabine gelagert und verbindet die beiden Fangköpfe, um die Auslösung synchron zu gestalten.FIG. 2 shows a view from above according to arrow A in FIG. 1. A tab 27 bent by the lever 23 can also be seen. The square-shaped axis of rotation 28 connected to the lever 23 is on the Cabin stored and connects the two catch heads to synchronize the release to design.

    Fig. 3 zeigt eine Vorderansicht, teilweise geschnitten, der Bremsfangvorrichtung. Die untere und obere keilförmige Bremsbacke 13 und 14 befinden sich im Ruhezustand. Die beiden Bremsbacken 13 und 14 sind an ihrem schmalen Ende durch einen Stab 29 miteinander verbunden. Etwa in der Mitte der keilförmigen Bremsbacken 13 und 14 sind Wälzkörper 30 und 31 angeordnet. Die Wälzkörper können zylindrisch oder kugelförmig sein. Bei der Ausbildung als zylindrische Rolle kann dieselbe glatt, gerändelt, gefräst oder gebordelt sein. Die zentrischen Öffnungen 32 und 33 in den Wälzkörpern 30 und 31 sind etwas grösser als die Bolzen 34 und 35, um welche sich die Wälzkörper drehen. Die Bohrungen 36 und 37 in der unteren keilförmigen Bremsbacke und die Bohrungen 38 und 39 in der oberen keilförmigen Bremsbacke dienen zum verschiebbaren Befestigen der Bremsbacken 13 und 14 in den Schlitzen 20 und 21 der Führungsplatte 19. Die Bohrung 40 oben in der oberen keilförmigen und die Bohrung 74 unten in der unteren keilförmigen Bremsbacke dienen zum Befestigen des Auslösemechanismus 23, 27, je nachdem, ob der Einbau der Fangvorrichtung oben oder unten an der Kabine erfolgt. An den inneren, der unteren und oberen keilförmigen Bremsbacke 13 und 14 zugewandten, abgewinkelten Teilen 41 und 42 des Gehäuses sind L-förmige gegossene oder gefräste Rollplatten 43 und 44 angelegt. Die Rollplatten gleiten auf den abgewinkelten Teilen 41 und 42 des Gehäuses. Die Rollplatten weisen an ihren sich zugewandten Enden je eine Vertiefung 45 und 46 auf. Zwei mit Druckfedern 47 und 48 versehene Schrauben 49 und 50 sind in Bohrungen 51 und 52 der kurzen Schenkel 53 und 54 der Rollplatten 43 und 44 sowie in Bohrungen 55 und 56 im Gehäuse 11 eingesetzt. Die Druckfedern 47, 48 sind konzentrisch zu den Schrauben 49, 50 angeordnet. An die kurzen Schenkel 53 und 54 schliessen sich lange Schenkel 72 und 73 an. Die erste Bremsbacke 12 und die untere und obere keilförmige Bremsbacke 13 und 14 sind an ihrer der Schiene 18 zugekehrten Seite mit Querrillen 57, 58 und 59 versehen. Mit einer Schraube 60 werden die erste Bremsbacke 12 und das Gehäuse 11 zusammengehalten. Im weiteren bewirkt diese Schraube eine kleine Vorspannung der Tellerfedern 16 und 17. Aus dieser Figur ist im weiteren der zweite Bolzen 61 der festen Bremsbacke ersichtlich. Für die Bremsung nach unten und nach oben können gleiche keilförmige Bremsbacken 13 und 14 verwendet werden. Die feste Bremsbacke 12 ist nicht mehr doppelt ausgebildet. Die schiefe Ebene fällt weg, was eine kostengünstigere Herstellung ermöglicht. Die Rollplatten 43 und 44 haben die gleiche Funktion wie früher die schiefe Ebene der ersten Bremsbacke gemäss der veröffentlichten PCT-Anmeldung PCT/CH97/00075. Über die Unterlagsscheiben 62, 63 stellt man den Druck der Tellerfederpakete 16, 17 auf die Bremsbacke 12 bzw. auf den nach unten bremsenden Keil 13 oder den nach oben bremsenden Keil 14 ein. Eine der Rollplatten 43, 44 ist etwas dünner ausgebildet als die andere Rollplatte 43. Es können zwischen der oberen und/oder unteren Rollplatte und dem abgewinkelten Teil 41, 42 des Gehäuses Plättchen 71 unterlegt werden, was zusätzlich ermöglicht, die untere und obere keilförmige Bremsbacke 13 und 14 verschieden einzustellen. Das Gehäuse 11 ist symmetrisch gebaut, was ermöglicht, für links und rechts, oben oder unten an der Liftkabine nur eine Gehäuseausführung zu benutzen, wodurch die Vielfalt der Lagerhaltung halbiert wird. Der Winkel der Rollplatten 43 und 44, der schiefen Seiten 64 und 65 der unteren und oberen keilförmigen Bremsbacke 13 und 14 und der abgewinkelten Teile 41 und 42 des Gehäuses 11 weisen einen Winkel in bezug auf die Schiene von etwa 5 bis 8 ° auf. Bei einem zu kleinen Winkel ergibt sich ein hartes Lösen aus dem Fang; bei einem zu grossen Winkel wird beim Einziehen gar nicht gebremst.Fig. 3 shows a front view, partly in section, of the brake safety device. The lower and upper wedge-shaped brake shoes 13 and 14 are located yourself at rest. The two brake shoes 13 and 14 are on their narrow end connected by a rod 29. About in the middle the wedge-shaped brake shoes 13 and 14 rolling elements 30 and 31 are arranged. The rolling elements can be cylindrical or spherical. During training as a cylindrical roll it can be smooth, knurled, milled or flanged his. The central openings 32 and 33 in the rolling elements 30 and 31 are slightly larger than the bolts 34 and 35 around which the rolling elements are rotate. The holes 36 and 37 in the lower wedge-shaped brake shoe and the holes 38 and 39 in the upper wedge-shaped brake shoe serve for slidably attaching the brake shoes 13 and 14 in the slots 20 and 21 of the guide plate 19. The bore 40 at the top of the upper wedge-shaped and the bore 74 at the bottom of the lower wedge-shaped brake shoe serve for Attach the trigger mechanism 23, 27, depending on whether the installation of the Safety gear at the top or bottom of the cabin. On the inner, the lower and upper wedge-shaped brake shoe 13 and 14 facing, angled Parts 41 and 42 of the housing are L-shaped cast or milled Roll plates 43 and 44 created. The roller plates slide on the angled ones Parts 41 and 42 of the housing. The roller plates point to them facing ends each have a recess 45 and 46. Two with compression springs 47 and 48 provided screws 49 and 50 are in bores 51 and 52 of the short Legs 53 and 54 of the roller plates 43 and 44 and in holes 55 and 56 used in the housing 11. The compression springs 47, 48 are concentric with the Screws 49, 50 arranged. Close the short legs 53 and 54 long legs 72 and 73. The first brake shoe 12 and the lower one and the upper wedge-shaped brake shoe 13 and 14 are facing the rail 18 Side with transverse grooves 57, 58 and 59. With a screw 60 the first brake shoe 12 and the housing 11 are held together. in the furthermore, this screw causes a small preload of the plate springs 16 and 17. From this figure, the second pin 61 is the fixed one Brake shoe visible. For braking down and up you can same wedge-shaped brake shoes 13 and 14 are used. The firm Brake shoe 12 is no longer double. The inclined plane falls away which enables cheaper production. The roller plates 43 and 44 have the same function as the inclined plane of the first brake shoe according to the published PCT application PCT / CH97 / 00075. about the washers 62, 63 are the pressure of the plate spring assemblies 16, 17 on the brake shoe 12 or on the downward braking wedge 13 or the wedge 14 braking upwards. One of the roller plates 43, 44 is something thinner than the other roller plate 43. There can be between the upper and / or lower roller plate and the angled part 41, 42 of the housing Platelets 71 are underlaid, which also allows the lower and adjust the upper wedge-shaped brake shoe 13 and 14 differently. The Housing 11 is built symmetrically, which allows for left and right, above or to use only one housing version at the bottom of the lift cabin, whereby the variety of warehousing is halved. The angle of the roller plates 43 and 44, the oblique sides 64 and 65 of the lower and upper wedge-shaped Brake shoe 13 and 14 and the angled parts 41 and 42 of the housing 11 have an angle with respect to the rail of about 5 to 8 °. at too small an angle results in a hard loosening from the catch; at a too large an angle is not braked when pulling in.

    Gemäss Fig. 4 ist die untere keilförmige Bremsbacke in einrückendem Zustand befindlich, nachdem die in dieser Figur nicht dargestellte, obere keilförmige Bremsbacke 14 durch den Auslösehebel 23 angehoben wurde. Beim Bremsen nach unten rollt die Rolle 30 der unteren keilförmigen Bremsbacke zwischen der unteren Rollplatte 43 und der Schiene 18. Bei einrückender oberer Bremsbacke 14, d.h. beim Bremsen nach oben, rollt die Rolle 31 zwischen der oberen Rollplatte 44 und der Schiene 18.4, the lower wedge-shaped brake shoe is in engagement Condition after the upper, not shown in this figure wedge-shaped brake shoe 14 was raised by the release lever 23. When braking downward, the roller 30 of the lower wedge-shaped brake shoe rolls between the lower roller plate 43 and the rail 18 upper brake shoe 14, i.e. when braking upwards, the roller 31 rolls between the upper roller plate 44 and the rail 18.

    In Fig. 5 ist die Bremsfangvorrichtung in der Bremsstellung gegen unten dargestellt. Die Rolle 30 ist etwas in die Vertiefung 45 zurückgewichen und die untere Bremsbacke 13 ist zwischen der unteren Rollplatte 43 und der Schiene 18 verkeilt. Die mit der Liftkabine verbundene Bremsfangvorrichtung stoppt in dieser Position die Liftkabine. Die erste Bremsbacke 12 und die untere keilförmige Bremsbacke 13 liegen mit ihren zwischen den Querrillen 57 und 58 befindlichen Teilen fest an der Schiene 18 an. Die obere keilförmige Bremsbacke 14 ist in dieser Figur nicht eingezeichnet.In Fig. 5 the safety gear is in the braking position against shown below. The roller 30 has receded somewhat into the recess 45 and the lower brake shoe 13 is between the lower roller plate 43 and the Rail 18 wedged. The safety gear connected to the lift cabin the lift cabin stops in this position. The first brake shoe 12 and the lower one wedge-shaped brake shoe 13 lie with its between the transverse grooves 57 and 58 parts located firmly on the rail 18. The upper wedge-shaped Brake shoe 14 is not shown in this figure.

    Gemäss Fig. 6 ist die Bremsfangvorrichtung in ausrückender Position befindlich. Die untere keilförmige Bremsbacke 13 gleitet mit der unteren Rollplatte 43 nach unten, wobei die Druckfeder 47 zusammengedrückt wird. Die konzentrisch zu den Schrauben 49 und 50 angeordneten Druckfedern 47 und 48 bewirken, dass die Rollplatten 43, 44 nach dem Lösen aus dem Fang wieder in die Grundstellung zurückgehen.6, the brake safety device is in the disengaged position located. The lower wedge-shaped brake shoe 13 slides with the lower one Roller plate 43 down, the compression spring 47 is compressed. The compression springs 47 arranged concentrically with the screws 49 and 50 and 48 cause the roller plates 43, 44 to release after being released from the catch go back to the basic position.

    In Fig. 7 ist ein Längsschnitt durch das Gehäuse 11 der Bremsfangvorrichtung dargestellt. Das Gehäuse ist symmetrisch zur Mittelebene B und kann deshalb links und rechts, oben oder unten an der Liftkabine eingesetzt werden. Die Bohrungen 66 und 67 dienen zur Aufnahme der Bolzen 15 und 61. Die Ausnehmungen 68 und 69 dienen zur Aufnahme der Einstell-Unterlagsscheiben 62 und 63. Die Ausnehmung 70 dient zur Aufnahme der Schraube 60.In Fig. 7 is a longitudinal section through the housing 11 of the brake safety device shown. The housing is symmetrical to the central plane B and can therefore be used on the left and right, top or bottom of the lift cabin become. The bores 66 and 67 serve to receive the bolts 15 and 61. The recesses 68 and 69 serve to receive the adjusting washers 62 and 63. The recess 70 serves to receive the screw 60.

    Claims (11)

    1. Safety brake device (1), particularly for lift cabins, with a first brake shoe loadable through at least one spring assembly (16, 17) for co-operating with a rail (18) and at least one cuneiform second and/or third brake shoe (13, 14), slideably borne between rail (18) and a housing (11), with at least one roll body (30, 31) borne in an opening of the second and/or third brake shoe (13, 14), characterised in that at least one slidingly disposed plate (43, 44), loadable through a spring element (47, 48), is provided between at least one surface (41, 42), inclined with respect to the vertical, of the housing (11) and the at least second and/or third cuneiform brake shoe (13, 14).
    2. Safety brake device according to claim 1, characterised in that the plate (43, 44) is designed L-shaped offset.
    3. Safety brake device according to claim 2, characterised in that the short leg (53, 54) of the plate (43, 44) is provided with a bore for receiving a screw (49, 50).
    4. Safety brake device according to one of the preceding claims, characterised in that the spring element (47, 48) is designed as pressure screw.
    5. Safety brake device according to claim 3, characterised in that the spring element (47, 48) is disposed concentrically with respect to the screw (49, 50).
    6. Safety brake device according to one of the preceding claims, characterised in that the longer leg (72, 73) of the plate (43, 44) is designed tapered at its end (45, 46).
    7. Safety brake device according to one of the preceding claims, characterised in that a lower (13) and an upper (14) cuneiform brake shoe is provided, the two brake shoes being connected to each other with a connecting member (29).
    8. Safety brake device according to one of the preceding claims, characterised in that supporting elements (71) are provided between the longer leg (72, 73) of at least one of the plates (43, 44) and the inclined surface (41, 42) of the housing (11).
    9. Safety brake device according to one of the preceding claims, characterised in that the first, second and/or third brake shoe (11, 13, 14) are provided with cross-grooves (57, 58, 59).
    10. Safety brake device according to one of the preceding claims, characterised in that the angle of the longer leg (72, 73) of the plates (42, 43) is about 5° - 8° with respect to the vertical.
    11. Safety brake device according to one of the preceding claims, characterised in that the housing (11) is disposed symmetrically with respect to a horizontal central plane (B).
    EP98810624A 1998-07-03 1998-07-03 Safety brake device, particularly for lift cabins Expired - Lifetime EP0968954B1 (en)

    Priority Applications (6)

    Application Number Priority Date Filing Date Title
    DE59808283T DE59808283D1 (en) 1998-07-03 1998-07-03 Brake safety device, in particular for elevator cars
    ES98810624T ES2198678T3 (en) 1998-07-03 1998-07-03 SAFETY BRAKE DEVICE, ESPECIALLY FOR ELEVATOR CABINS.
    EP98810624A EP0968954B1 (en) 1998-07-03 1998-07-03 Safety brake device, particularly for lift cabins
    AT98810624T ATE239663T1 (en) 1998-07-03 1998-07-03 BRAKE DEVICE, PARTICULARLY FOR ELEVATOR CABINS
    PCT/CH1999/000280 WO2000001604A1 (en) 1998-07-03 1999-06-29 Safety catch and brake stop, especially for elevator cars
    AU43564/99A AU4356499A (en) 1998-07-03 1999-06-29 Safety catch and brake stop, especially for elevator cars

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP98810624A EP0968954B1 (en) 1998-07-03 1998-07-03 Safety brake device, particularly for lift cabins

    Publications (2)

    Publication Number Publication Date
    EP0968954A1 EP0968954A1 (en) 2000-01-05
    EP0968954B1 true EP0968954B1 (en) 2003-05-07

    Family

    ID=8236176

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98810624A Expired - Lifetime EP0968954B1 (en) 1998-07-03 1998-07-03 Safety brake device, particularly for lift cabins

    Country Status (6)

    Country Link
    EP (1) EP0968954B1 (en)
    AT (1) ATE239663T1 (en)
    AU (1) AU4356499A (en)
    DE (1) DE59808283D1 (en)
    ES (1) ES2198678T3 (en)
    WO (1) WO2000001604A1 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US10544009B2 (en) 2016-02-23 2020-01-28 Otis Elevator Company Elevator service panel

    Families Citing this family (13)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US6981575B2 (en) 1999-09-27 2006-01-03 Otis Elevator Company Concrete rail safety device for an elevator car
    FR2816300B1 (en) * 2000-11-09 2003-02-28 Otis Elevator Co SAFETY DEVICE OF AN ELEVATOR CAB WITH NON-METALLIC RAILS
    WO2003008317A1 (en) * 2001-06-29 2003-01-30 Mitsubishi Denki Kabushiki Kaisha Emergency brake device of elevator
    FR2852587A1 (en) 2003-03-20 2004-09-24 Thyssenkrupp Elevator Mfg F DEVICE FOR RELEASING A PARACHUTE FOR AN ELEVATOR CAB, AS WELL AS THE PARACHUTE THUS EQUIPPED
    DE502005003930D1 (en) * 2004-01-22 2008-06-19 Inventio Ag Safety device for a lift
    EP1997767B1 (en) * 2006-03-08 2018-11-14 Mitsubishi Denki Kabushiki Kaisha Emergency stop device for elevator
    ES2319706B1 (en) * 2006-06-07 2009-12-09 Thyssenkrupp Elevator Manufacturing Spain, S.L. DOUBLE EFFECT EMERGENCY BRAKING DEVICE FOR ELEVATOR CABINS.
    ATE487674T1 (en) 2007-01-08 2010-11-15 Thyssenkrupp Elevator Mfg Spai FLOTATION DEVICE FOR PROPERLY CLAMPING A LIFE PROTECTION DEVICE
    US9321611B2 (en) * 2011-04-19 2016-04-26 Otis Elevator Company Elevator brake having a brake release feature
    US10377606B2 (en) 2015-04-10 2019-08-13 Otis Elevator Company Elevator safety gear guiding assembly and method
    EP3353105B1 (en) * 2015-09-23 2019-12-18 Inventio AG Capture device for a lift system
    CN105819302B (en) * 2016-05-31 2018-06-29 石家庄五龙制动器股份有限公司 Rope brake
    EP4043380A1 (en) * 2019-10-07 2022-08-17 Dynatech, Dynamics & Technology, S.L. Electromechanical actuator by flexible transmission for the triggering of the anti-fall safety gear of a lift

    Family Cites Families (2)

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    Publication number Priority date Publication date Assignee Title
    US3762512A (en) * 1971-10-29 1973-10-02 Us Elevator Corp Elevator rail grab safety apparatus
    DE19780136D2 (en) * 1996-03-01 2000-01-27 Cobianchi Liftteile Ag Muensin Brake safety device and brake shoe, in particular for elevator cars

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US10544009B2 (en) 2016-02-23 2020-01-28 Otis Elevator Company Elevator service panel

    Also Published As

    Publication number Publication date
    ES2198678T3 (en) 2004-02-01
    DE59808283D1 (en) 2003-06-12
    WO2000001604A1 (en) 2000-01-13
    ATE239663T1 (en) 2003-05-15
    AU4356499A (en) 2000-01-24
    EP0968954A1 (en) 2000-01-05

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