EP0870719B1 - Bearing element for a gripping device - Google Patents

Bearing element for a gripping device Download PDF

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Publication number
EP0870719B1
EP0870719B1 EP19980106015 EP98106015A EP0870719B1 EP 0870719 B1 EP0870719 B1 EP 0870719B1 EP 19980106015 EP19980106015 EP 19980106015 EP 98106015 A EP98106015 A EP 98106015A EP 0870719 B1 EP0870719 B1 EP 0870719B1
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EP
European Patent Office
Prior art keywords
safety device
housing
catch housing
catch
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP19980106015
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German (de)
French (fr)
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EP0870719A1 (en
Inventor
Christoph Masch.-Ing. Liebetrau
Ortwin Masch.-Ing. Piper
Albrecht Masch.-Ing. Morlok
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Inventio AG
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Inventio AG
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Priority to EP19980106015 priority Critical patent/EP0870719B1/en
Publication of EP0870719A1 publication Critical patent/EP0870719A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/22Braking 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 safety gear on an elevator car with a holder for the braking part according to the preamble of claim 1.
  • a safety gear in a defined position, in which at a minimum distance to the guide surface of a guide rail no touching an active or passive part of the Safety gear takes place.
  • the minimum distance to The guide rail is required for a short reaction time to reach the triggered safety gear.
  • a safety gear of the aforementioned type is in the CH patent No. 650,479.
  • the safety gear is on the side slidably mounted and is attached by means of a compression spring pressed an adjustable stop. With a set screw can the game between the guide rail and passive part can be set.
  • a passive part of a safety gear the one opposite a catching roller or a catching wedge Understood side, then the capture role or accordingly the catch wedge is meant as an active part.
  • European patent application EP 0 562 931 shows a solution which partially takes this wish into account.
  • One on the side rigid safety gear can counteract spring forces move vertically up a certain path when the Safety gear engages.
  • the one above the safety gear arranged compression springs release the vertical deceleration force climb linearly onto the cabin construction when braking and can with optimal dimensioning the deceleration jerk reduce accordingly.
  • An optimal one for all load cases Sizing of the springs is not possible and it must therefore appropriate compromises are made.
  • the present invention is therefore based on the object with a simple construction an improved bracket for to create a safety gear that meets the requirements regarding self-centering, horizontal movement and gentle power transmission to the cabin construction fulfilled.
  • the invention is characterized inter alia by in that the Safety gear in the ready position against a vertical positive bearing device is pressed, with which defined fixation in the horizontal plane is achieved and that the safety gear catches when the brakes are released automatically aligns with the guide rail, combined with Delay forces on the cabin construction.
  • the freedom of movement of the trap housing is advantageous the trigger.
  • the quasi-positive storage of the safety gear in the Rest position is by means of pointed conical bolts on one side and preferably tapered holes on the other side reached between the catch housing and the catch device holder.
  • a carrier plate is an elastic plate under tension inserted, which the catch housing in the standby position in the positive bearing presses and when braking on the one hand a lifting of the positive storage for the Self centering allowed and on the other hand a subdued and sprung transmission of the deceleration forces to the Cabin construction causes.
  • a rubber plate is preferably used as the elastic plate adjusted Shor hardness provided.
  • the holder of the safety device according to the invention is also applicable for wedge catchers.
  • the holder according to the invention can be below or above an elevator car can be arranged.
  • Safety gear 1 shows a fixed with a cabin construction part 3 connected and arranged around a guide rail 4 Safety gear 1 in the ready position.
  • the Safety gear 1, or its holder is essentially with an approximately U-shaped safety gear holder 15 lateral projections on the two upper ends of the legs and a carrier plate 2, which on the safety gear holder 15th put on and on the projecting leg ends with this is screwed.
  • the actual safety gear is a arranged within the safety gear holder 15 Catch housing 5.
  • the left side of the catch housing 5 has one Inclined track with a catch roller 6, which is from a Push rod 8 are pushed up into the catch position can.
  • the catch roller 6 is in the Ready position on a lower stop, which of bent ends of a placed on the catch housing 5 Holding plate 7 is formed.
  • a release wedge 9 not described here in detail used, the upper end behind a holding plate 10th is visible.
  • the catch housing 5 is mounted on pointed cones 11, which on horizontal inner bottom of the safety gear holder 15 are attached. As counterparts to this storage are with the Pointed cones 11 geometrically arranged pointed conical bores 12 on the underside of the collecting housing 5 available. Below the carrier plate 2 and on the side Depositions in the safety gear holder 15 is placed a blank elastic plate 13, which in the middle in the Area of the guide rail 4 has a recess and its underside is covered with a slide film 14. The height the interior of the safety gear holder 15 is dimensioned that the capture housing 5 on the underside of the elastic plate 13, or on the slide film 14 with a little bias rests and with this preload on the quasi positive storage with the pointed cones 11 and pointed conical holes 12 is pressed.
  • This storage results in a defined position for the safety gear 1, or the Catch housing 5 in the standby position, one sufficient air gap between guide rail 4 and Catch roller 6 and between release wedge 9 and guide rail 4 is striven for.
  • FIG. 2 shows an enlarged section with a pointed cone 11 and bore 12 according to the invention.
  • the conical bore 12 has a cylindrical center bore so that a secure flank contact is achieved.
  • the catching role 6 indented. This has an effect when braking downwards a vertical upward force and a centering one lateral force on the catch housing 5.
  • the vertical force moves the catch housing 5 against the spring force of the elastic Plate 13 upwards, which is at the very beginning of the Upward movement freed from storage and then with what immediately self-centering on the guide rail with the necessary sideways movement of the housing 5 can take place.
  • the pressure on the elastic Plate 13 and the slide film 14 are not yet very large, so that the necessary sideways movement of the catch housing 5 by means of Sliding friction between the top of the housing 5 and the Slide film 14 can take place easily.
  • the elastic plate 13 by the Catch housing 5 compressed to a fraction of their thickness and so the braking force is dampened and sprung over that Cabin construction part 3 on the not shown Transfer elevator car.
  • the plate is preferably rubber with an adjusted Shor hardness used. The internal friction of this elastic material has a dampening effect and the present arrangement results in a strong progressive spring characteristic, which is also very desirable is.
  • a safety device 1 interferes with the prescribed function of the Safety gear 1 in no way.
  • a safety device 1 interferes with the prescribed function of the Safety gear 1 in no way.
  • a cutting edge bearing can also be provided according to FIG. This can be from a cutting edge 16 in the safety device holder 15 and an opposite notch in the catch housing 5, as well one horizontally distanced to the cutting edge 16 Parallel stop 18 exist. These items can too be reversed.
  • Another type of horizontal fixation can be done using balls and spherical depressions in the catch housing 5 and in Safety gear holder 15 can be reached.
  • the elastic plate 13 can also instead of rubber other materials are used, which the necessary Progressive spring characteristics and have internal friction for damping.
  • Teflon but also another material with an equivalent, lower Friction coefficient can be used.

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

Description

Die vorliegende Erfindung betrifft eine Fangvorrichtung an einer Aufzugskabine mit einer Halterung für den bremsenden Teil gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a safety gear on an elevator car with a holder for the braking part according to the preamble of claim 1.

In der Bereitschaftsstellung muss eine Fangvorrichtung in einer definierten Lage gehalten werden, in welcher bei einem minimalen Abstand zur Führungsfläche einer Führungsschiene keine Berührung eines aktiven oder passiven Teils der Fangvorrichtung stattfindet. Der minimale Abstand zur Führungsschiene ist erforderlich um eine kurze Reaktionszeit der ausgelösten Fangvorrichtung zu erreichen. Hierzu wird bei bekannten Ausführungen ein Seitenanschlag vorgesehen, an welchen die Fangvorrichtung mittels Federkraft angedrückt wird und so eine definierte Bereitschaftslage einnimmt. Bei einer Auslösung kann sich die Fangvorrichtung gegen diese Federkraft seitlich verschieben und eine selbstzentrierte Lage einnehmen ohne seitlichen Druck auf die Führungsschuhe auszuüben.In the standby position, a safety gear in a defined position, in which at a minimum distance to the guide surface of a guide rail no touching an active or passive part of the Safety gear takes place. The minimum distance to The guide rail is required for a short reaction time to reach the triggered safety gear. This is done at known versions provided a side stop which the safety gear is pressed by spring force and thus occupies a defined standby position. At a The safety gear can trigger against this spring force move sideways and assume a self-centered position without exerting lateral pressure on the guide shoes.

Eine Fangvorrichtung der vorgenannten Art ist im CH-Patent Nr. 650 479 offenbart. Die Fangvorrichtung ist seitlich verschiebbar gelagert und wird mittels einer Druckfeder an einen verstellbaren Anschlag gedrückt. Mit einer Stellschraube kann das Spiel zwischen Führungsschiene und Passivteil eingestellt werden. Als Passivteil einer Fangvorrichtung wird die einer Fangrolle oder eines Fangkeils gegenüberliegende Seite verstanden, wobei dann dementsprechend die Fangrolle oder der Fangkeil als Aktivteil gemeint ist.A safety gear of the aforementioned type is in the CH patent No. 650,479. The safety gear is on the side slidably mounted and is attached by means of a compression spring pressed an adjustable stop. With a set screw can the game between the guide rail and passive part can be set. As a passive part of a safety gear the one opposite a catching roller or a catching wedge Understood side, then the capture role or accordingly the catch wedge is meant as an active part.

Es kann bei dieser Anordnung nicht übersehen werden, dass bei einer Bremsauslösung grosse vertikale Kräfte auftreten welche der seitlichen Verschiebung entsprechend grosse Reibkräfte entgegensetzen. Eine verzögerte Horizontalverschiebung führt zu einem verspäteten Bremseingriff, zu einem verstärkten Bremsruck und erhöht das Verletzungsrisiko von Fahrgästen.With this arrangement it cannot be overlooked that at large vertical forces occur when a brake is triggered large frictional forces corresponding to the lateral displacement oppose. A delayed horizontal shift leads to a delayed braking intervention, to an increased braking jerk and increases the risk of injury to passengers.

Das Einrücken einer Fangvorrichtung erzeugt einen schlagartigen Anstieg der vertikalen Verzögerungskraft, welche von der Kabinenkonstruktion aufgenommen werden muss. Es wäre deshalb wünschenswert, dass dieser steile Anstieg der vertikalen Verzögerungskräfte etwas abgeschwächt auf die Kabinenkonstruktion übertragen wird.The engagement of a safety gear creates a sudden Increase in the vertical retarding force, which from the Cabin construction must be included. So it would be desirable that this steep increase in vertical Decelerated somewhat weakened on the Cabin construction is transferred.

Die Europäische Patentanmeldung EP 0 562 931 zeigt eine Lösung, die diesem Wunsche teilweise Rechnung trägt. Eine seitlich starr gelagerte Fangvorrichtung kann sich gegen Federkräfte um einen bestimmten Weg vertikal nach oben bewegen, wenn die Fangvorrichtung greift. Die oberhalb der Fangvorrichtung angeordneten Druckfedern lassen die vertikale Verzögerungskraft auf die Kabinenkonstruktion beim Bremsen linear ansteigen und können so bei optimaler Dimensionierung den Verzögerungsruck entsprechen reduzieren. Eine für alle Belastungsfälle optimale Dimensionierung der Federn ist aber nicht möglich und es müssen deshalb entsprechende Kompromisse eingegangen werden.European patent application EP 0 562 931 shows a solution which partially takes this wish into account. One on the side rigid safety gear can counteract spring forces move vertically up a certain path when the Safety gear engages. The one above the safety gear arranged compression springs release the vertical deceleration force climb linearly onto the cabin construction when braking and can with optimal dimensioning the deceleration jerk reduce accordingly. An optimal one for all load cases Sizing of the springs is not possible and it must therefore appropriate compromises are made.

Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, mit einer einfachen Konstruktion eine verbesserte Halterung für eine Fangvorrichtung zu schaffen, welche die Anforderungen bezüglich Selbstzentrierung, horizontale Verschieblichkeit und schonende Kraftübertragung auf die Kabinenkonstruktion erfüllt.The present invention is therefore based on the object with a simple construction an improved bracket for to create a safety gear that meets the requirements regarding self-centering, horizontal movement and gentle power transmission to the cabin construction fulfilled.

Diese Aufgabe wird durch die im Anspruch 1 gekennzeichnete und beispielhaft in Zeichnung und Beschreibung dargestellte Erfindung gelöst.This object is characterized by the in claim 1 and exemplified in the drawing and description Invention solved.

Die Erfindung zeichnet sich u.a. dadurch aus, dass die Fangvorrichtung in der Bereitschaftslage vertikal gegen eine formschlüssige Lagereinrichtung gedrückt wird, womit eine definierte Fixierung in der horizontalen Ebene erreicht wird und dass sich das Fanggehäuse bei einer Bremsauslösung selbsttätig an der Führungsschiene ausrichtet, kombiniert mit Verzögerungskräfte auf die Kabinenkonstruktion. Besonders vorteilhaft ist die freie Beweglichkeit des Fanggehäuses nach der Auslösung.The invention is characterized inter alia by in that the Safety gear in the ready position against a vertical positive bearing device is pressed, with which defined fixation in the horizontal plane is achieved and that the safety gear catches when the brakes are released automatically aligns with the guide rail, combined with Delay forces on the cabin construction. Especially The freedom of movement of the trap housing is advantageous the trigger.

Vorteilhaft Weiterbildungen und Verbesserungen sind in den Unteransprüchen aufgeführt.Advantageous further training and improvements are in the Subclaims listed.

Die quasi formschlüssige Lagerung der Fangvorrichtung in der Ruhelage wird mittels spitzkonischen Bolzen auf einer Seite und vorzugsweise spitzkonischen Bohrungen auf der anderen Seite zwischen Fanggehäuse und Fangvorrichtungshalter erreicht.The quasi-positive storage of the safety gear in the Rest position is by means of pointed conical bolts on one side and preferably tapered holes on the other side reached between the catch housing and the catch device holder.

Zwischen der Oberseite des Fanggehäuses und der Unterseite einer Trägerplatte ist eine elastische Platte unter Vorspannung eingelegt, welche das Fanggehäuse in der Bereitschaftslage in die formschlüssige Lagerung drückt und beim Bremsen einerseits eine Aufhebung der formschlüssige Lagerung für die Selbstzentrierung erlaubt und andererseits eine gedämpfte und gefederte Uebertragung der Verzögerungskräfte auf die Kabinenkonstruktion bewirkt.Between the top of the catch housing and the bottom a carrier plate is an elastic plate under tension inserted, which the catch housing in the standby position in the positive bearing presses and when braking on the one hand a lifting of the positive storage for the Self centering allowed and on the other hand a subdued and sprung transmission of the deceleration forces to the Cabin construction causes.

Als elastische Platte wird vorzugsweise eine Gummiplatte mit angepasster Shor-Härte vorgesehen.A rubber plate is preferably used as the elastic plate adjusted Shor hardness provided.

Für die erleichterte seitliche Verschiebung bei der Selbstzentrierung ist die elastische Platte auf ihrer dem Fanggehäuse zugekehrten Seite mit einer Gleitfolie versehen.For the easier lateral shift at the Self-centering is the elastic plate on your that Cover the side of the trap housing with a slide film.

Als horizontal fixierende Elemente können auch Kugeln und sphärische Vertiefungen sowie Schneide und Kerbe vorgesehen werden.Balls and can also be used as horizontally fixing elements spherical depressions as well as cutting edge and notch are provided become.

Die erfindungsgemässe Halterung der Fangvorrichtung ist auch für Keilfangvorrichtungen anwendbar.The holder of the safety device according to the invention is also applicable for wedge catchers.

Die erfindungsgemässe Halterung kann unterhalb oder oberhalb einer Aufzugskabine angeordnet werden. The holder according to the invention can be below or above an elevator car can be arranged.

Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels näher erläutert und in den Zeichnungen dargestellt, es zeigen

Fig.1
eine Fangvorrichtung in der Bereitschaftsstellung,
Fig.2
eine Einzelheit der formschlüssigen Lagerung in der Bereitschaftsstellung,
Fig.3
die Fangvorrichtung der Fig.1 in der Bremsstellung und
Fig.4
eine Variante der horizontalen Lagefixierung.
The invention is explained below with reference to an embodiment and shown in the drawings, show it
Fig.1
a safety gear in the standby position,
Fig.2
a detail of the form-fitting storage in the standby position,
Figure 3
1 in the braking position and
Figure 4
a variant of the horizontal position fixation.

Die Fig.1 zeigt eine mit einem Kabinenkonstruktionsteil 3 fest verbundene und um eine Führungsschiene 4 angeordnete Fangvorrichtung 1 in der Bereitschaftsstellung. Die Fangvorrichtung 1, bzw. deren Halterung besteht im wesentlichen aus einem etwa U-förmigen Fangvorrichtungshalter 15 mit seitlichen Auskragungen an den beiden oberen Schenkelenden und einer Trägerplatte 2, welche auf den Fangvorrichtungshalter 15 aufgesetzt und an den auskragenden Schenkelenden mit diesem verschraubt ist. Die eigentliche Fangvorrichtung ist ein innerhalb des Fangvorrichtungshalters 15 angeordnetes Fanggehäuse 5. Die linke Seite des Fanggehäuses 5 weist eine Schrägbahn mit einer Fangrolle 6 auf, welche von einer Druckstange 8 nach oben in die Fangposition geschoben werden kann. Die Fangrolle 6 befindet sich in der Bereitschaftsstellung an einem unteren Anschlag, welcher von abgebogenen Enden eines auf das Fanggehäuse 5 aufgesetzten Haltebleches 7 gebildet wird. In der rechten Hälfte des Fanggehäuses ist ein hier nicht näher beschriebener Lösekeil 9 eingesetzt, dessen oberes Ende hinter einem Halteblech 10 sichtbar ist.1 shows a fixed with a cabin construction part 3 connected and arranged around a guide rail 4 Safety gear 1 in the ready position. The Safety gear 1, or its holder is essentially with an approximately U-shaped safety gear holder 15 lateral projections on the two upper ends of the legs and a carrier plate 2, which on the safety gear holder 15th put on and on the projecting leg ends with this is screwed. The actual safety gear is a arranged within the safety gear holder 15 Catch housing 5. The left side of the catch housing 5 has one Inclined track with a catch roller 6, which is from a Push rod 8 are pushed up into the catch position can. The catch roller 6 is in the Ready position on a lower stop, which of bent ends of a placed on the catch housing 5 Holding plate 7 is formed. In the right half of the Catch housing is a release wedge 9 not described here in detail used, the upper end behind a holding plate 10th is visible.

Das Fanggehäuse 5 ist auf Spitzkonussen 11 gelagert, welche am horizontalen inneren Boden des Fangvorrichtungshalters 15 befestigt sind. Als Gegenstücke dieser Lagerung sind mit den Spitzkonussen 11 geometrisch übereinstimmend angeordnete spitzkonische Bohrungen 12 an der Unterseite des Fanggehäuses 5 vorhanden. Unterhalb der Trägerplatte 2 und seitlich auf Absetzungen im Fangvorrichtungshalter 15 aufgelegt befindet sich eine diecke elastische Platte 13, welche in der Mitte im Bereich der Führungsschiene 4 eine Aussparung aufweist und an ihrer Unterseite mit einer Gleitfolie 14 belegt ist. Die Höhe des Innenraumes des Fangvorrichtungshalters 15 ist so bemessen, dass das Fanggehäuse 5 an der Unterseite der elastischen Platte 13, bzw. an der Gleitfolie 14 mit etwas Vorspannung satt anliegt und mit dieser Vorspannkraft auf die quasi formschlüssige Lagerung mit den Spitzkonussen 11 und spitzkonischen Bohrungen 12 gedrückt wird. Diese Lagerung ergibt eine definierte Lage für die Fangvorrichtung 1, bzw. des Fanggehäuses 5 in der Bereitschaftsstellung, wobei ein ausreichender Luftspalt zwischen Führungsschiene 4 und Fangrolle 6 sowie zwischen Lösekeil 9 und Führungsschiene 4 angestrebt einzuhalten ist.The catch housing 5 is mounted on pointed cones 11, which on horizontal inner bottom of the safety gear holder 15 are attached. As counterparts to this storage are with the Pointed cones 11 geometrically arranged pointed conical bores 12 on the underside of the collecting housing 5 available. Below the carrier plate 2 and on the side Depositions in the safety gear holder 15 is placed a blank elastic plate 13, which in the middle in the Area of the guide rail 4 has a recess and its underside is covered with a slide film 14. The height the interior of the safety gear holder 15 is dimensioned that the capture housing 5 on the underside of the elastic plate 13, or on the slide film 14 with a little bias rests and with this preload on the quasi positive storage with the pointed cones 11 and pointed conical holes 12 is pressed. This storage results in a defined position for the safety gear 1, or the Catch housing 5 in the standby position, one sufficient air gap between guide rail 4 and Catch roller 6 and between release wedge 9 and guide rail 4 is striven for.

Die Fig.2 zeigt einen vergrösserten Ausschnitt mit Spitzkonus 11 und erfindungsgemässe Bohrung 12. Die spitzkonische Bohrung 12 weist eine zylindrische Zentrumsbohrung auf, damit eine sichere Flankenauflage erreicht wird. Die Lage der Spitzkonusse 11 und deren Befestigung, beispielsweise durch schweissen, wird beim Zusammenbau mit aufgelegtem Fanggehäuse 5 definiert.2 shows an enlarged section with a pointed cone 11 and bore 12 according to the invention. The conical bore 12 has a cylindrical center bore so that a secure flank contact is achieved. The location of the pointed cones 11 and their attachment, for example by welding defined when assembled with the catch housing 5 on.

In der Fig.3 wird die Fangvorrichtung 1, bzw. das Fanggehäuse 5 in der ausgelösten und bremsenden Lage gezeigt. Mittels dieser Darstellung wird im folgenden die Funktion der erfindungsgemässen Einrichtung beschrieben.3, the safety device 1, or the safety housing 5 shown in the triggered and braking position. By means of this The following is the function of the representation described device according to the invention.

Beim Auslösen der Fangvorrichtung, etwa durch eine Vorrichtung gemäss EP-Anmeldung Nr. 96810763.1 (IP1144) wird die Fangrolle 6 eingerückt. Damit wirkt beim Abbremsen einer Abwärtsfahrt eine vertikale Kraft nach oben sowie eine zentrierende seitliche Kraft auf das Fanggehäuse 5. Die vertikale Kraft bewegt das Fanggehäuse 5 gegen die Federkraft der elastischen Platte 13 nach oben, womit es sich schon ganz am Anfang der Aufwärtsbewegung von der Lagerung freimacht und womit dann sofort die Selbstzentrierung an die Führungsschiene mit der nötigen Seitwärtsbewegung des Fanggehäuses 5 stattfinden kann. When the safety gear is triggered, for example by a device according to EP application no. 96810763.1 (IP1144), the catching role 6 indented. This has an effect when braking downwards a vertical upward force and a centering one lateral force on the catch housing 5. The vertical force moves the catch housing 5 against the spring force of the elastic Plate 13 upwards, which is at the very beginning of the Upward movement freed from storage and then with what immediately self-centering on the guide rail with the necessary sideways movement of the housing 5 can take place.

Am Anfang der Aufwärtsbewegung ist der Druck auf die elastische Platte 13 und die Gleitfolie 14 noch nicht sehr gross, so dass die nötige Seitwärtsbewegung des Fanggehäuses 5 mittels Gleitreibung zwischen dem Oberteil des Fanggehäuses 5 und der Gleitfolie 14 problemlos stattfinden kann. Im weiteren Verlauf der Fangoperation wird die elastische Platte 13 durch das Fanggehäuse 5 auf einen Bruchteil ihrer Dicke zusammengedrückt und so die Bremskraft gedämpft und gefedert über das Kabinenkonstruktionsteil 3 auf die nicht dargestellte Aufzugskabine übertragen. Als Material für die elastische Platte wird vorzugsweise Gummi mit angepasster Shor-Härte verwendet. Die innere Reibung dieses elastischen Materials wirkt dämpfend und die vorliegende Anordnung ergibt eine stark progressive Federcharakteristik, was ebenfalls sehr erwünscht ist.At the beginning of the upward movement is the pressure on the elastic Plate 13 and the slide film 14 are not yet very large, so that the necessary sideways movement of the catch housing 5 by means of Sliding friction between the top of the housing 5 and the Slide film 14 can take place easily. In the further course the catching operation, the elastic plate 13 by the Catch housing 5 compressed to a fraction of their thickness and so the braking force is dampened and sprung over that Cabin construction part 3 on the not shown Transfer elevator car. As a material for the elastic The plate is preferably rubber with an adjusted Shor hardness used. The internal friction of this elastic material has a dampening effect and the present arrangement results in a strong progressive spring characteristic, which is also very desirable is.

Die erfindungsgemässe Halterung und Lagerung des Fanggehäuses 5 einer Fangvorrichtung 1 stört die vorgeschriebene Funktion der Fangvorrichtung 1 in keiner Weise. Mit der gedämpft und progressiv gefederten Uebertragung der Fangkräfte auf die Aufzugskabine und deren Konstruktionsteile 3 ergibt sich eine entsprechend reduzierte Spitzenbeanspruchung dieser Elemente beim Abbremsen durch die ausgelöste Fangvorrichtung 1. Durch den gedämpften und progressiv gefederten Verzögerungsbeginn werden nebst einer ebenfalls kleineren Beanspruchung der Führungsschienen 4 auch Fahrgäste in der Aufzugskabine eine Notbremsung als weniger hart erleben.The mounting and mounting of the capture housing 5 according to the invention a safety device 1 interferes with the prescribed function of the Safety gear 1 in no way. With the steamed and progressively suspended transmission of the catching forces to the An elevator car and its construction parts 3 result in a accordingly reduced peak stress on these elements when braking through the triggered safety gear 1. By the damped and progressively sprung delay start in addition to a smaller load on the Guide rails 4 also passengers in the elevator car Experience emergency braking as less harsh.

Als Alternative für die horizontal fixierende Lagerung kann gemäss Fig.4 auch eine Schneidenlagerung vorgesehen werden. Diese kann aus einer Schneide 16 im Fangvorrichtungshalter 15 und einer gegenüberliegenden Kerbe im Fanggehäuse 5, sowie aus einem zur Schneide 16 horizontal distanzierten Parallellanschlag 18 bestehen. Diese Elemente können auch seitenvertauscht angeordnet werden.As an alternative for horizontally fixing storage a cutting edge bearing can also be provided according to FIG. This can be from a cutting edge 16 in the safety device holder 15 and an opposite notch in the catch housing 5, as well one horizontally distanced to the cutting edge 16 Parallel stop 18 exist. These items can too be reversed.

Eine weitere Art der horizontalen Fixierung kann mittels Kugeln und sphärischen Vertiefungen im Fanggehäuse 5 und im Fangvorrichtungshalter 15 erreicht werden. Another type of horizontal fixation can be done using balls and spherical depressions in the catch housing 5 and in Safety gear holder 15 can be reached.

Wichtig bei der erfindungsgemässen horizontal fixierenden Lagerung ist der Umstand, dass die hierzu verwendeten Elemente schräge oder allenfalls runde Berührungsflächen oder spitze Berührungspunkte aufweisen, damit die horizontale Fixierung schon bei der kleinsten Aufwärtsbewegung des Fanggehäuses 5 sofort aufgehoben wird. Das schliesst horizontal fixierende Lagerungen durch Verwendung irgendwelcher zylindrischer oder paralleler Elemente, wie beispielsweise Pass-Stiften, aus.Important in the horizontally fixing according to the invention Storage is the fact that the elements used for this sloping or possibly round contact surfaces or pointed Have contact points so that the horizontal fixation even with the smallest upward movement of the safety housing 5 is lifted immediately. That includes fixing horizontally Bearings by using any cylindrical or parallel elements, such as dowel pins.

Die Anwendung der erfindungsgemässen Halterung des Fanggehäuses 5 einer Fangvorrichtung 1 ist nicht auf die beispielhafte Rollenfangvorrichtung beschränkt. Keilfangvorrichtungen jeglicher Art, sowie weitere Arten von Fangvorrichtungen können, in angepasster Form, ebenfalls mit der erfindungsgemässen Halterung ausgeführt werden.The application of the catch housing holder according to the invention 5 of a safety gear 1 is not based on the example Roller safety device limited. Wedge safety gears of any kind, as well as other types of safety gear can, in an adapted form, also with the bracket according to the invention are executed.

Für die elastische Platte 13 können anstelle von Gummi auch andere Materialien verwendet werden, welche die nötigen Eigenschaften bezüglich progressive Federcharakteristik und innere Reibung für die Dämpfung aufweisen.For the elastic plate 13 can also instead of rubber other materials are used, which the necessary Progressive spring characteristics and have internal friction for damping.

Als Material für die Gleitfolie 14 kann beispielsweise Teflon, aber auch ein anderes Material mit gleichwertigem, niederem Reibwert verwendet werden.For example, Teflon, but also another material with an equivalent, lower Friction coefficient can be used.

Claims (6)

  1. Safety device at a lift cage, with a mount for the braking part (5), wherein the mount consists of a positional fixing thereof in the position of readiness and a device for movement thereof in at least one plane during the braking process, characterised in that the safety device (1) comprises a catch housing (5) which includes the braking part and which is immovably supported (11, 12) in the horizontal plane in a defined position of readiness and that a resilient plate (13) is present, by way of which the catching forces of the catch housing (5) are transferred damped and sprung to cage constructional parts (3) of a lift cage, wherein the catch housing (5) is lifted out of the support (11, 12) during the catching.
  2. Safety device with a mount according to claim 1, characterised in that the support of the catch housing (5) consists of at least one cone (11) on one side and at least one bore (12), which is preferably conically pointed, on an opposite side.
  3. Safety device with a mount according to claim 1, characterised in that the resilient plate (13) is covered at the side, which faces the catch housing (5), with a slide foil (14) with a low friction value.
  4. Safety device with a mount according to claim 1, characterised in that the resilient plate (13) consists of a material which produces a damping effect by internal friction during compression and exhibits a progressive spring characteristic.
  5. Safety device with a mount according to claim 1, characterised in that a knife-edge support (16, 17, 18) of the catch housing (5) is provided in the safety device holder (15) as support for the defined position of readiness.
  6. Safety device with a mount according to claim 1, characterised in that balls and spherical depressions are provided in the safety housing (5) and in the safety device holder (15) as support for the defined position of readiness.
EP19980106015 1997-04-11 1998-04-02 Bearing element for a gripping device Expired - Lifetime EP0870719B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19980106015 EP0870719B1 (en) 1997-04-11 1998-04-02 Bearing element for a gripping device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97810218 1997-04-11
EP97810218 1997-04-11
EP19980106015 EP0870719B1 (en) 1997-04-11 1998-04-02 Bearing element for a gripping device

Publications (2)

Publication Number Publication Date
EP0870719A1 EP0870719A1 (en) 1998-10-14
EP0870719B1 true EP0870719B1 (en) 2002-10-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980106015 Expired - Lifetime EP0870719B1 (en) 1997-04-11 1998-04-02 Bearing element for a gripping device

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Country Link
EP (1) EP0870719B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004262652A (en) 2002-09-23 2004-09-24 Inventio Ag Safety device for elevator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI84253C (en) * 1989-12-18 1991-11-11 Kone Oy Capture device for a lift
FI98295C (en) * 1991-11-18 1997-05-26 Kone Oy catching device
FR2689113A1 (en) * 1992-03-26 1993-10-01 Prudhomme Dominique Emergency stop device or parachute of an elevator car having integrated damping means.

Also Published As

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EP0870719A1 (en) 1998-10-14

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