EP3181503A1 - Rope catch, and lift installation with the same - Google Patents

Rope catch, and lift installation with the same Download PDF

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Publication number
EP3181503A1
EP3181503A1 EP15200226.7A EP15200226A EP3181503A1 EP 3181503 A1 EP3181503 A1 EP 3181503A1 EP 15200226 A EP15200226 A EP 15200226A EP 3181503 A1 EP3181503 A1 EP 3181503A1
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EP
European Patent Office
Prior art keywords
rope
safety
centrifugal force
speed
actuating element
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.)
Granted
Application number
EP15200226.7A
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German (de)
French (fr)
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EP3181503B1 (en
Inventor
Frank Lülfing
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.)
DualLift GmbH
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DualLift GmbH
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Filing date
Publication date
Application filed by DualLift GmbH filed Critical DualLift GmbH
Priority to DK15200226.7T priority Critical patent/DK3181503T3/en
Priority to EP15200226.7A priority patent/EP3181503B1/en
Priority to ES15200226T priority patent/ES2966078T3/en
Publication of EP3181503A1 publication Critical patent/EP3181503A1/en
Application granted granted Critical
Publication of EP3181503B1 publication Critical patent/EP3181503B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure

Definitions

  • the present invention relates to a rope catching device for a lift with a safety rope, comprising a housing with a safety cable inlet and a safety cable outlet, a clamping device arranged in the housing, which is adapted to move from a release position in which the safety cable is movable relative to the clamping device.
  • the clamping device in particular non-positively or frictionally engages the safety cable, and arranged in the housing triggering device, which is adapted to the speed of the between the safety cable inlet and the Grasping catch rope outlet extending catch rope, and is operatively connected with a clamping device such that when a predetermined speed of the safety rope is exceeded, the clamping device is moved from the release position to the clamping position.
  • Rope catching devices for lifts are well known.
  • WO 2012/08449 such a rope catching device described.
  • Lifting systems can be equipped with these rope catching devices for intrinsic safety, in order to prevent the fall of a means of transport of the lift system in the event of the failure of the lift drive.
  • the above-described rope catching devices when transporting persons that is to say when the means of transport is a so-called person-receiving means.
  • hanging or hoistable person receiving means to which e.g. Work platforms, work baskets or work seats belong. These must be secured in the event that the support rope breaks or passes through the winch against accidental drops to protect persons within the pickup or even in the area.
  • rope catching devices are used. These rope catching devices can pick up the load of the person receiving means on a safety rope independent of the carrying rope and thereby secure the person receiving means against a fall.
  • Such rope catching devices are usually mounted directly on a person receiving means and drive, for example. on hanging in front of a facade wire cables together with the people receiving means up and down.
  • a rope catching device detects by means of the triggering device continuously the speed of his safety rope, e.g. via a feeler roller inside the rope catching device. Occurs in a hanging people receiving means now the case that the support rope ruptures or runs through, so is detected by the rope catcher overspeed and automatically closes the clamping mechanism of the rope catching device. As a result, the load of the person receiving means via the clamping mechanism of the rope catching device is collected by means of the safety rope and thus prevents a collapse of the person receiving means. As overspeed speeds are classified according to the EN 1808 from 30 m / min in. Only after the safety cable has been relieved can the system be used e.g. be manually unlocked using the hand lever and resume the person receiving means its operation, if the security is given again.
  • the invention has the object to improve a rope catching device of the type described in such a way that a functional test is made possible with less effort.
  • the invention has the object to improve the rope catching device to the effect that the functional test can be done without disassembling the rope catching device and / or the safety rope of the lift system.
  • the tripping device has a movable actuating element operable from outside the housing, which is coupled in a force-transmitting manner to the tripping device in such a way that the speed detected by the tripping device changes, in particular increases, as a function of the actuating speed of the actuating element.
  • the invention makes use of the knowledge that the previously required movement, and sometimes necessary disassembly of the safety rope to perform the functional check can be omitted if it succeeds in other ways to produce an accelerated movement of the triggering device.
  • the invention proposes to integrate an actuating element in the rope catching device, which causes a movement of the triggering device when actuated.
  • the force exerted by the actuator movement by means of power transmission the stronger the faster the actuator is moved.
  • the invention makes use of the fact that the triggering device is operated independently of the safety rope "from the other side", and thus a cumbersome movement of the safety cable can be omitted.
  • the invention is further developed in that the triggering device has a centrifugal force mechanism which is rotationally movable in dependence on the speed of the safety rope and is adapted to bring the clamping device into the locking position. Since most rope catching devices already use such a centrifugal mechanism, it is also possible with only slight structural interventions in the rope catching device to retrofit an actuating element with existing release devices of existing rope catching devices.
  • the centrifugal mechanism is preferably adapted to assume the coupling position as a function of its rotational speed as soon as the safety rope speed exceeds the predetermined value.
  • the tripping device is adapted to trigger according to standard EN1808 when exceeding a maximum permissible speed of 30 m / min of the safety rope and to bring the clamping device in the clamping position.
  • the actuator is substantially rotationally rigidly coupled to the centrifugal mechanism.
  • torsionally rigid coupling with the centrifugal mechanism is achieved that a movement of the actuating element is substantially one-to-one converted into a movement of the centrifugal mechanism.
  • the speed of actuation of the actuator can be pre-defined and adjusted to the value that would result in triggering of the trip device when the centrifugal mechanism and the trip device as a whole are operating properly.
  • the actuating element is designed as a shaft journal, which has a shaft end with a drive contour for transmitting torque.
  • the triggering device preferably has a sensing roller which is rotatable and drivably supported by the catching cable in the housing, and is coupled in a torsionally rigid manner to the centrifugal force mechanism.
  • the centrifugal mechanism has, in a preferred embodiment, a rotationally fixed to the actuating element connected to the first coupling member, and a relative to the actuating element rotatably mounted second coupling member.
  • the two coupling members are rotatably mounted coaxially.
  • the second coupling member could be mounted on the actuating element designed as a shaft journal.
  • the centrifugal mechanism on one or more centrifugal elements which are preferably mounted only pivotally on the first coupling member, and are pivotally mounted on the second coupling member and relative to the axis of rotation of the second coupling member radially slidably. If the centrifugal elements are moved by rotational drive of the first coupling member in a circle, they will dodge radially outward in response to the Zentripetalbeatung in the direction of acting as a dummy force centrifugal force. A Dodge at the first bearing point (the first coupling link) is not possible. However, due to the radially displaceable mounting on the second coupling member, the centrifugal force elements can escape radially outwards with the section mounted there. As a result, the centrifugal clutch expands radially outward during rotation.
  • the centrifugal force elements preferably have one or more drivers, for example in the form of serrated projections, which move radially outward as a result of the increasing rotational speed of the centrifugal force elements and come into contact with a force transmission element of the clamping device, for example a trigger lever in a coupling position.
  • the centrifugal mechanism is preferably designed so that the centrifugal force elements reach the coupling position when the maximum speed specified in EN1808 is reached or exceeded.
  • the centrifugal force element or the centrifugal force elements are coupled to a restoring spring, which is set up to apply a restoring force against the centrifugal force against the centrifugal force. This ensures that the centrifugal elements are returned to the uncoupled position when falling below the permissible maximum speed of the safety rope or when the lift system.
  • the rope catching device together with the lift system again perform their proper function.
  • the centrifugal clutch has an adjusting screw for adjusting the bias of the return spring.
  • the actuating element is coupled to a torque generator, the torque generator having a drive contour of the actuating element complementarily complementary drive contour, and is preferably selected from the list consisting of: rotary lever, handwheel, knob, or electric or pneumatic screwdriver.
  • the torque generator and the actuating element are preferably matched to one another such that the complementarily correspondingly formed drive contours have a geometric profile deviating from standard key dimensions.
  • the torque generator is coupled to the actuating element such that a torque takes place only in a first direction of rotation, while in the opposite second direction of rotation either no torque transmission takes place or a movement in the second direction of rotation is mechanically prevented.
  • the first direction of rotation, in which the torque can be transmitted, according to this embodiment is equal to the direction of rotation of the follower roller at Sinkiolo the rope catching device relative to the safety rope.
  • the invention further relates to a lift system, in particular passenger or freight lift installation, with a means of transport for receiving persons or loads, a drive device which is coupled to the conveyor and is adapted to selectively move the conveyor upward or downward, wherein the drive device in particular is designed as a cable winch, a carrying cable to which the drive device engages, a safety rope, and a rope catching device which is coupled to the means of transport, adapted to detect a relative speed between the conveyor and the safety rope and adapted to, by means of engagement of the safety cable to the means of transport stop as soon as a predetermined value of the relative speed is reached or exceeded.
  • a lift system in particular passenger or freight lift installation, with a means of transport for receiving persons or loads, a drive device which is coupled to the conveyor and is adapted to selectively move the conveyor upward or downward
  • the drive device in particular is designed as a cable winch, a carrying cable to which the drive device engages, a safety rope, and a rope catching device which is coupled to the means of transport,
  • the invention solves its underlying object in such a lift system by having a rope catching device, which is designed according to one of the preferred embodiments described above.
  • the lift system according to the invention has the same advantages and preferred embodiments as the rope catching device according to the invention, for which reason reference is made in this regard to the above statements.
  • FIG. 1 a rope catching device 1 is shown, which is prepared for mounting on a lift system.
  • the rope catching device 1 has a catching cable inlet 3 and a catching cable outlet 5 on a housing 7.
  • a safety cable 9 extends through the safety cable inlet 3 and the safety cable outlet 5 and extends here between inside the housing 7.
  • the rope catching device 1 has a locking lever 11 for manually triggering a clamping device (not shown) in the interior of the housing 7. Furthermore, the rope catching device 1 has an unlocking lever 13 for manually unlocking the clamping device in the interior of the housing 7.
  • actuating element 17 is arranged within the recess 15 such that it can be actuated from outside the housing 7 by means of a torque generator 19.
  • the actuating element 17 and the torque generator 19 have complementary corresponding drive contours, which enable a torque transmission to the actuating element.
  • the complementary corresponding attack profiles for the positive connection of the torque generator 19 are formed with the actuating element 17.
  • the safety cable 9 moves in the lifting operation of the lift ( FIG. 5 ) in the direction of the arrow A through the housing 7 of the rope catching device 1 therethrough.
  • a (not shown) follower roller is arranged, which bears against the safety cable 9 and is driven by the safety cable 9.
  • the follower roller 27 is substantially torsionally rigidly connected to a triggering device 23, which in the Figures 3 and 4 is shown in more detail.
  • FIG. 2 the rope catching device 1 is shown in perspective in an external view.
  • the safety rope 9 has been hidden for easier recognition.
  • the above explanations apply to FIG. 1 corresponding.
  • the housing 7 is divided into a housing rear wall 7b and a housing cover 7a.
  • the actuating element 17 extends through the recess 4 in the housing cover 7a, so that the end section of the actuating element provided with the drive contour can be attacked from outside by means of the torque generator 19.
  • FIG. 3 the housing 7 is shown with dismantled housing cover 7a, which releases the view of a triggering device 23.
  • the triggering device 23 has a centrifugal mechanism 25.
  • the centrifugal force mechanism 25, in turn, is connected in a torsionally rigid manner to the follower roller 27 (partially hidden).
  • the triggering device 23 comprises the actuating element 17, which is designed as a shaft journal, which has a shaft end 29, on which the drive contour is formed.
  • the drive contour is formed by two parallel flanks 31a, b.
  • the attack flanks 31a, b spaced from each other in a key width, which can not be positively gripped with standard tools to prevent incorrect operation by not properly trained operating personnel with non-professional tools as possible.
  • the centrifugal clutch 25 has a first coupling member 33, which is non-rotatably connected to the sensing roller 27 and the actuating element 17. Further, the centrifugal mechanism 25 on a second coupling member 35, which is rotatable, preferably coaxial with the first coupling member 33, is mounted on the triggering device 23.
  • the centrifugal force mechanism 25 has a first centrifugal force element 37a and a second centrifugal force element 37b.
  • At the centrifugal force elements 37a, 37b are each a plurality of carriers 39 in the form of radially outwardly extending projections.
  • the drivers 39 are adapted to engage in a coupling position of the centrifugal clutch 25 with a release lever 41 into engagement, which is a Actuation of the (not shown) clamping device effected in a well-known manner. Details on the kinematics arise FIG. 4 ,
  • centrifugal force elements 37a, b each mounted purely rotationally movable on the first coupling member 33, preferably by means of bearing pin 43rd
  • centrifugal force elements 37a, b are mounted on the second coupling member 35 in oblong holes 45a, b by means of correspondingly formed sliding blocks 47a, b.
  • the slots 45a, b extend in relation to a rotational axis R of the triggering device 23 in the radial direction.
  • the centrifugal force elements 37a, b at sufficiently fast rotation of the triggering device 23 and the follower roller 27 can give in that bearing portion of the centrifugal force in which the slots 45a, b are formed, and in which the second coupling member 35 relative to the first coupling member 33 is rotatably mounted, the driver 39 of the centrifugal force elements 37 a, b move radially outward with increasing speed of the centrifugal clutch 25. If the rotational speed of the centrifugal clutch 25 reaches or exceeds a predetermined value, for example 30 m / min in accordance with EN1808, the drivers 39 contact the release lever 41 and actuate the clamping device. This evasive movement as a result of the centrifugal force is effected either by the sensing roller 27 in normal operation, or by rotational movement of the actuating element 17th
  • the sliding blocks 47a, b, with which the centrifugal elements 37a, b are slidably mounted on the second coupling member 35 are connected by means of a return spring 48 designed as a tension spring, preferably biased.
  • a return spring 48 designed as a tension spring, preferably biased.
  • an adjusting screw 50 is arranged on the first sliding block 47a.
  • FIG. 5 a lift system according to a preferred embodiment of the invention is shown to illustrate the installation location of the rope catching device 1.
  • the lift system 100 has a conveyor 103, shown in the present example as a cabin for persons or loads. On the conveyor means 103, a drive device 105, preferably on the roof side, mounted. The drive device 105 is formed in the present example as a cable winch.
  • a rope catching device 1 is attached at the conveyor means 103.
  • the rope catching device 1 acts on a safety rope 9, which parallel to a support cable 109th is guided. On the support cable 109, the drive device 105 engages.
  • the rope catching device 1 is configured in the manner described above to detect the relative speed between it and the safety rope 9, in particular by means of the triggering device 23 according to FIGS Figures 3 and 4 , Upon reaching or exceeding a predetermined maximum speed, for example 30 m / min, the rope catching device 1 catches the conveyor 103 on the safety rope 9.
  • a tensioning weight 113 is attached, which tensions the supporting cable and keeps it in vertical alignment.
  • the rope catching device 1 is preferably mounted so that it is easily accessible by maintenance personnel. Access is preferably either from within the conveyance means 103 or from outside, for example from the roof of the means of transport 103.
  • the checking of the function of the triggering device 23 has been made possible from a particularly simple manner, that the actuating element 17 through the recess 15 through now accessible from the outside and can be actuated.
  • the operation of the function check is possible according to the invention in a fraction of the time previously required and can be carried out by an operator without accompaniment easily and reliably. This lowers the obstruction of each operator to carry out the prescribed daily working check process practically and leads to an overall significant improvement in the security situation wherever the lift system according to the invention is used with the rope catching device according to the invention.

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

Abstract

Die Erfindung betrifft eine Seilfangvorrichtung (1) für eine Liftanlage mit einem Fangseil (9), mit einer Klemmvorrichtung, die dazu eingerichtet ist, von einer Freigabestellung, in welcher das Fangseil (9) relativ zu der Klemmvorrichtung beweglich ist, in eine Klemmstellung gebracht zu werden, und einer in dem Gehäuse (7) angeordneten Auslösevorrichtung, welche dazu eingerichtet ist, die Geschwindigkeit des sich zwischen dem Fangseileinlass (3) und dem Fangseilauslass (5) erstreckenden Fangseils (9) zu erfassen, und mit der Klemmvorrichtung derart wirkverbunden ist, dass bei Überschreiten einer vorbestimmten Geschwindigkeit des Fangseils (9) die Klemmvorrichtung von der Freigabestellung in die Klemmstellung verbracht wird. Erfindungsgemäß wird vorgeschlagen, das die Auslösevorrichtung ein von außerhalb des Gehäuses (7) bedienbares, bewegliches Betätigungselement aufweist, welches mit der Auslösevorrichtung derart kraftübertragend gekoppelt ist, dass sich die von der Auslösevorrichtung erfasste Geschwindigkeit in Abhängigkeit der Betätigungsgeschwindigkeit des Betätigungselements erhöht.The invention relates to a rope catching device (1) for a lift system with a safety rope (9), with a clamping device which is adapted to be brought into a clamping position from a release position in which the safety cable (9) is movable relative to the clamping device and a release device arranged in the housing (7), which is set up to detect the speed of the safety cable (9) extending between the safety cable inlet (3) and the safety cable outlet (5), and is operatively connected to the clamping device, that when a predetermined speed of the safety rope (9) is exceeded, the clamping device is moved from the release position into the clamping position. According to the invention, it is proposed that the triggering device has a movable actuating element that can be operated from outside the housing (7), which is coupled in a force-transmitting manner to the triggering device such that the speed detected by the triggering device increases as a function of the actuating speed of the actuating element.

Description

Die vorliegende Erfindung betrifft eine Seilfangvorrichtung für eine Liftanlage mit einem Fangseil, mit einem Gehäuse mit einem Fangseileinlass und einem Fangseilauslass, einer in dem Gehäuse angeordneten Klemmvorrichtung, die dazu eingerichtet ist, von einer Freigabestellung, in welcher das Fangseil relativ zu der Klemmvorrichtung beweglich ist, insbesondere Schlupf oder Spiel aufweist, in eine Klemmstellung gebracht zu werden, in welcher die Klemmvorrichtung, insbesondere kraftschlüssig oder reibschlüssig, an dem Fangseil angreift, und einer in dem Gehäuse angeordneten Auslösevorrichtung, welche dazu eingerichtet ist, die Geschwindigkeit des sich zwischen dem Fangseileinlass und dem Fangseilauslass erstreckenden Fangseils zu erfassen, und mit einer Klemmvorrichtung derart wirkverbunden ist, dass bei Überschreiten einer vorbestimmten Geschwindigkeit des Fangseils die Klemmvorrichtung von der Freigabestellung in die Klemmstellung verbracht wird.The present invention relates to a rope catching device for a lift with a safety rope, comprising a housing with a safety cable inlet and a safety cable outlet, a clamping device arranged in the housing, which is adapted to move from a release position in which the safety cable is movable relative to the clamping device. in particular slippage or play, to be brought into a clamping position in which the clamping device, in particular non-positively or frictionally engages the safety cable, and arranged in the housing triggering device, which is adapted to the speed of the between the safety cable inlet and the Grasping catch rope outlet extending catch rope, and is operatively connected with a clamping device such that when a predetermined speed of the safety rope is exceeded, the clamping device is moved from the release position to the clamping position.

Seilfangvorrichtungen für Liftanlagen sind allgemein bekannt. Beispielsweise ist in WO 2012/08449 eine solche Seilfangvorrichtung beschrieben. Liftanlagen können zur Eigensicherung mit diesen Seilfangvorrichtungen ausgestattet werden, um den Absturz eines Beförderungsmittels der Liftanlage im Falle des Defekts des Liftantriebs zu verhindern. Besondere Relevanz haben die vorstehend beschriebenen Seilfangvorrichtungen beim Transport von Personen, wenn also das Beförderungsmittel ein sogenanntes Personenaufnahmemittel ist.Rope catching devices for lifts are well known. For example, in WO 2012/08449 such a rope catching device described. Lifting systems can be equipped with these rope catching devices for intrinsic safety, in order to prevent the fall of a means of transport of the lift system in the event of the failure of the lift drive. Of particular relevance are the above-described rope catching devices when transporting persons, that is to say when the means of transport is a so-called person-receiving means.

Es sind so genannte hängende bzw. hochziehbare Personenaufnahmemittel bekannt, zu denen z.B. Arbeitsbühnen, Arbeitskörbe oder Arbeitssitze gehören. Diese müssen für den Fall, dass das Tragseil reißt oder durch die Seilwinde durchläuft gegen ein ungewolltes Herunterfallen gesichert werden, um Personen innerhalb des Personenaufnahmemittels oder auch in der Umgebung zu schützen.There are known so-called hanging or hoistable person receiving means, to which e.g. Work platforms, work baskets or work seats belong. These must be secured in the event that the support rope breaks or passes through the winch against accidental drops to protect persons within the pickup or even in the area.

Hierzu werden so genannte Seilfangvorrichtungen verwendet. Diese Seilfangvorrichtungen können die Last des Personenaufnahmemittelsan einem vom Tragseil unabhängigen Sicherheitsseil aufnehmen und hierdurch das Personenaufnahmemittel gegen einen Absturz sichern. Derartige Seilfangvorrichtungen werden in der Regel direkt an einem Personenaufnahmemittel angebaut und fahren z.B. an vor einer Fassade hängenden Drahtseilen zusammen mit dem Personenaufnahmemittel auf und ab.For this purpose, so-called rope catching devices are used. These rope catching devices can pick up the load of the person receiving means on a safety rope independent of the carrying rope and thereby secure the person receiving means against a fall. Such rope catching devices are usually mounted directly on a person receiving means and drive, for example. on hanging in front of a facade wire cables together with the people receiving means up and down.

Eine Seilfangvorrichtung erfasst dabei mittels der Auslösevorrichtung fortlaufend die Geschwindigkeit seines Sicherheitsseils z.B. über eine Tastrolle im Inneren der Seilfangvorrichtung. Tritt bei einem hängenden Personenaufnahmemittel nun der Fall ein, dass das Tragseil reißt oder durchläuft, so wird von der Seilfangvorrichtung eine Übergeschwindigkeit detektiert und der Klemmmechanismus der Seilfangvorrichtung automatisch geschlossen. Hierdurch wird die Last des Personenaufnahmemittelsüber den Klemmmechanismus der Seilfangvorrichtung mittels des Sicherheitsseils aufgefangen und so ein Abstürzen des Personenaufnahmemittelsverhindert. Als Übergeschwindigkeit werden dabei nach der EN 1808 Geschwindigkeiten ab 30 m/min in eingestuft. Erst nach der Entlastung des Sicherheitsseiles kann das System z.B. mit Hilfe des Handhebels wieder manuell freigeschaltet werden und das Personenaufnahmemittel seinen Betrieb fortsetzen, falls die Sicherheit wieder gegeben ist.A rope catching device detects by means of the triggering device continuously the speed of his safety rope, e.g. via a feeler roller inside the rope catching device. Occurs in a hanging people receiving means now the case that the support rope ruptures or runs through, so is detected by the rope catcher overspeed and automatically closes the clamping mechanism of the rope catching device. As a result, the load of the person receiving means via the clamping mechanism of the rope catching device is collected by means of the safety rope and thus prevents a collapse of the person receiving means. As overspeed speeds are classified according to the EN 1808 from 30 m / min in. Only after the safety cable has been relieved can the system be used e.g. be manually unlocked using the hand lever and resume the person receiving means its operation, if the security is given again.

Bei Seilfangvorrichtungen sind aus arbeitsschutzrechtlichen Gründen derzeit regelmäßige Überprüfungen der Funktionsfähigkeit für den Betreiber verbindlich vorgeschrieben. Diese müssen in der Regel arbeitstäglich durchgeführt werden. In der Funktionsüberprüfung enthalten ist ein Test der Funktionsfähigkeit der Auslösevorrichtung. Bislang wird die Funktionsfähigkeit der Auslösevorrichtung überprüft, indem das Fangseil von Hand ruckartig durch die Fangvorrichtung gezogen wird. Löst die Auslösevorrichtung hierbei die Klemmvorrichtung aus, gilt der Test als bestanden. Wenngleich diese Methode in der Regel eine erfolgreiche Funktionsüberprüfung ermöglicht, so wird als Nachteil empfunden, dass der Test sehr umständlich und arbeitsintensiv ist. In bestimmten Einbausituationen ist ein solcher Test ohne Demontage des Fangseils und/oder der Seilfangvorrichtung unmöglich. Dies führt in der Praxis häufig dazu, dass die Betreiber der Liftanlage vom eigentlich vorgeschriebenen Funktionstest absehen.For safety reasons, regular checks of the functionality of rope safety devices are mandatory for the operator. These usually have to be carried out every working day. Included in the functional check is a test of the functionality of the tripping device. So far, the functionality of the triggering device is checked by the safety rope is pulled by hand jerkily by the safety gear. If the triggering device releases the clamping device, the test is passed. Although this method usually allows for a successful functional check, the disadvantage is that the test is very cumbersome and labor intensive. In certain installation situations, such a test without disassembly of the safety rope and / or the Rope catching device impossible. In practice, this frequently leads to the operators of the lift system refraining from the actually prescribed functional test.

Demzufolge lag der Erfindung die Aufgabe zugrunde, eine Seilfangvorrichtung der eingangs bezeichneten Art dahingehend zu verbessern, dass ein Funktionstest mit geringerem Aufwand ermöglicht wird. Insbesondere lag der Erfindung die Aufgabe zugrunde, die Seilfangvorrichtung dahingehend zu verbessern, dass der Funktionstest erfolgen kann, ohne die Seilfangvorrichtung und/oder das Fangseil von der Liftanlage zu demontieren.Accordingly, the invention has the object to improve a rope catching device of the type described in such a way that a functional test is made possible with less effort. In particular, the invention has the object to improve the rope catching device to the effect that the functional test can be done without disassembling the rope catching device and / or the safety rope of the lift system.

Die Erfindung löst die ihr zugrunde liegende Aufgabe bei einer Seilfangvorrichtung der eingangs bezeichneten Art, indem diese mit den Merkmalen von Anspruch 1 ausgebildet ist. Erfindungsgemäß weist die Auslösevorrichtung ein von außerhalb des Gehäuses bedienbares, bewegliches Betätigungselement auf, welches mit der Auslösevorrichtung derart kraftübertragend gekoppelt ist, dass sich die von der Auslösevorrichtung erfasste Geschwindigkeit in Abhängigkeit der Betätigungsgeschwindigkeit des Betätigungselements ändert, insbesondere erhöht. Die Erfindung macht sich die Erkenntnis zunutze, dass die zuvor erforderliche Bewegung, und teils notwendige Demontage des Fangseils zum Durchführen der Funktionsüberprüfung unterbleiben kann, wenn es auf andere Weise gelingt, eine beschleunigte Bewegung der Auslösevorrichtung zu erzeugen. Diesem Ansatz folgend schlägt die Erfindung vor, ein Betätigungselement in die Seilfangvorrichtung zu integrieren, welches bei Betätigung eine Bewegung der Auslösevorrichtung bewirkt. Insbesondere ist die vom Betätigungselement ausgeübte Bewegung mittels Kraftübertragung umso stärker, je schneller das Betätigungselement bewegt wird. Insbesondere macht sich die Erfindung zunutze, dass die Auslösevorrichtung unabhängig vom Fangseil "von der anderen Seite" her betätigt wird, und somit eine umständliche Bewegung des Fangseils unterbleiben kann.The invention solves the underlying task in a rope catching device of the type described by this is formed with the features of claim 1. According to the invention, the tripping device has a movable actuating element operable from outside the housing, which is coupled in a force-transmitting manner to the tripping device in such a way that the speed detected by the tripping device changes, in particular increases, as a function of the actuating speed of the actuating element. The invention makes use of the knowledge that the previously required movement, and sometimes necessary disassembly of the safety rope to perform the functional check can be omitted if it succeeds in other ways to produce an accelerated movement of the triggering device. Following this approach, the invention proposes to integrate an actuating element in the rope catching device, which causes a movement of the triggering device when actuated. In particular, the force exerted by the actuator movement by means of power transmission, the stronger the faster the actuator is moved. In particular, the invention makes use of the fact that the triggering device is operated independently of the safety rope "from the other side", and thus a cumbersome movement of the safety cable can be omitted.

Die Erfindung wird weitergebildet, indem die Auslösevorrichtung einen Fliehkraftmechanismus aufweist, welcher in Abhängigkeit der Geschwindigkeit des Fangseils rotatorisch bewegbar und dazu eingerichtet ist, die Klemmvorrichtung in die Sperrstellung zu bringen. Da die meisten Seilfangvorrichtungen einen solchen Fliehkraftmechanismus bereits einsetzen, ist es mit nur geringen strukturellen Eingriffen in die Seilfangvorrichtung auch möglich, ein Betätigungselement bei bestehenden Auslösevorrichtungen bestehender Seilfangvorrichtungen nachzurüsten.The invention is further developed in that the triggering device has a centrifugal force mechanism which is rotationally movable in dependence on the speed of the safety rope and is adapted to bring the clamping device into the locking position. Since most rope catching devices already use such a centrifugal mechanism, it is also possible with only slight structural interventions in the rope catching device to retrofit an actuating element with existing release devices of existing rope catching devices.

Der Fliehkraftmechanismus ist vorzugsweise dazu eingerichtet, in Abhängigkeit seiner Rotationsgeschwindigkeit die Kupplungsstellung einzunehmen, sobald die Fangseilgeschwindigkeit den vorbestimmten Wert überschreitet. Erfindungsgemäß ist die Auslösevorrichtung dazu eingerichtet, nach Norm EN1808 bei Überschreiten einer zulässigen Höchstgeschwindigkeit von 30 m/min des Fangseils auszulösen und die Klemmvorrichtung in die Klemmstellung zu bringen.The centrifugal mechanism is preferably adapted to assume the coupling position as a function of its rotational speed as soon as the safety rope speed exceeds the predetermined value. According to the invention, the tripping device is adapted to trigger according to standard EN1808 when exceeding a maximum permissible speed of 30 m / min of the safety rope and to bring the clamping device in the clamping position.

Vorzugsweise ist das Betätigungselement im Wesentlichen drehstarr mit dem Fliehkraftmechanismus gekoppelt. Durch die drehstarre Kopplung mit dem Fliehkraftmechanismus wird erreicht, dass eine Bewegung des Betätigungselements im Wesentlichen eins zu eins in eine Bewegung des Fliehkraftmechanismusumgesetzt wird. So lässt sich die Geschwindigkeit der Betätigung des Betätigungselements vorab definieren und auf denjenigen Wert einstellen, der zu einer Auslösung der Auslösevorrichtung führen müsste, wenn der Fliehkraftmechanismusund die Auslösevorrichtung insgesamt ordnungsgemäß arbeitet.Preferably, the actuator is substantially rotationally rigidly coupled to the centrifugal mechanism. By the torsionally rigid coupling with the centrifugal mechanism is achieved that a movement of the actuating element is substantially one-to-one converted into a movement of the centrifugal mechanism. Thus, the speed of actuation of the actuator can be pre-defined and adjusted to the value that would result in triggering of the trip device when the centrifugal mechanism and the trip device as a whole are operating properly.

In einer besonders bevorzugten Ausführungsform der Erfindung ist das Betätigungselement als Wellenzapfen ausgebildet, der ein Wellenende mit einer Antriebskontur zur Drehmomentübertragung aufweist.In a particularly preferred embodiment of the invention, the actuating element is designed as a shaft journal, which has a shaft end with a drive contour for transmitting torque.

Die Auslösevorrichtung weist vorzugsweise eine Tastrolle auf, die drehbar und von dem Fangseil antreibbar in dem Gehäuse gelagert ist, und im Wesentlichen drehstarr mit dem Fliehkraftmechanismusgekoppelt ist.The triggering device preferably has a sensing roller which is rotatable and drivably supported by the catching cable in the housing, and is coupled in a torsionally rigid manner to the centrifugal force mechanism.

Der Fliehkraftmechanismus weist in einer bevorzugten Ausführungsform ein drehstarr mit dem Betätigungselement verbundenes erstes Koppelglied auf, und ein relativ zu dem Betätigungselement drehbar gelagertes zweites Koppelglied. Vorzugsweise sind die beiden Koppelglieder koaxial drehbar gelagert. Beispielsweise könnte das zweite Koppelglied auf dem als Wellenzapfen ausgebildeten Betätigungselement gelagert sein.The centrifugal mechanism has, in a preferred embodiment, a rotationally fixed to the actuating element connected to the first coupling member, and a relative to the actuating element rotatably mounted second coupling member. Preferably, the two coupling members are rotatably mounted coaxially. For example, the second coupling member could be mounted on the actuating element designed as a shaft journal.

In einer besonders bevorzugten Ausführungsform weist der Fliehkraftmechanismus ein oder mehrere Fliehkraftelemente auf, die vorzugsweise an dem ersten Koppelglied ausschließlich schwenkbar gelagert sind, und an dem zweiten Koppelglied schwenkbar und bezogen auf die Drehachse des zweiten Koppelglieds radial verschiebbar gelagert sind. Werden die Fliehkraftelemente durch rotatorischen Antrieb des ersten Koppelglieds im Kreis bewegt, werden sie als Reaktion auf die Zentripetalbeschleunigung in Richtung der als Scheinkraft wirkenden Fliehkraft radial nach außen ausweichen. Eine Ausweichung am ersten Lagerpunkt (dem ersten Koppelglied) ist nicht möglich. Allerdings können die Fliehkraftelemente aufgrund der radial verschiebbaren Lagerung am zweiten Koppelglied mit dem dort gelagerten Abschnitt radial nach außen ausweichen. Hierdurch weitet sich die Fliehkraftkupplung bei Rotation radial nach außen auf.In a particularly preferred embodiment, the centrifugal mechanism on one or more centrifugal elements, which are preferably mounted only pivotally on the first coupling member, and are pivotally mounted on the second coupling member and relative to the axis of rotation of the second coupling member radially slidably. If the centrifugal elements are moved by rotational drive of the first coupling member in a circle, they will dodge radially outward in response to the Zentripetalbeschleunigung in the direction of acting as a dummy force centrifugal force. A Dodge at the first bearing point (the first coupling link) is not possible. However, due to the radially displaceable mounting on the second coupling member, the centrifugal force elements can escape radially outwards with the section mounted there. As a result, the centrifugal clutch expands radially outward during rotation.

Die Fliehkraftelemente weisen vorzugsweise einen oder mehrere Mitnehmer auf, beispielsweise in Form von zackenartig ausgebildeten Vorsprüngen, die sich in Folge der zunehmenden Rotationsgeschwindigkeit der Fliehkraftelemente radial nach außen bewegen und in einer Kupplungsstellung mit einem Kraftübertragungselement der Klemmvorrichtung, beispielsweise einem Auslösehebel, in Kontakt geraten. Der Fliehkraftmechanismus ist vorzugsweise so eingerichtet, dass die Fliehkraftelemente bei Erreichen oder Überschreiten der nach EN1808 vorgeschriebenen Höchstgeschwindigkeit in Kupplungsstellung geraten.The centrifugal force elements preferably have one or more drivers, for example in the form of serrated projections, which move radially outward as a result of the increasing rotational speed of the centrifugal force elements and come into contact with a force transmission element of the clamping device, for example a trigger lever in a coupling position. The centrifugal mechanism is preferably designed so that the centrifugal force elements reach the coupling position when the maximum speed specified in EN1808 is reached or exceeded.

In einer weiteren bevorzugten Ausgestaltung sind das Fliehkraftelement bzw. die Fliehkraftelemente mit einer Rückstellfeder gekoppelt, welche dazu eingerichtet ist, auf die Fliehkraftelemente eine Rückstellkraft entgegen der Fliehkraft aufzubringen. Hierdurch wird sichergestellt, dass die Fliehkraftelemente bei Unterschreiten der zulässigen Höchstgeschwindigkeit des Fangseils oder bei Stillstand der Liftanlage in die entkuppelte Stellung zurückverbracht werden. Dadurch kann nach einem entriegeln der Klemmvorrichtung, welches vorzugsweise manuell mittels eines Handbetätigungselements separat erfolgt, die Seilfangvorrichtung mitsamt der Liftanlage wieder ihre ordnungsgemäße Funktion ausführen.In a further preferred embodiment, the centrifugal force element or the centrifugal force elements are coupled to a restoring spring, which is set up to apply a restoring force against the centrifugal force against the centrifugal force. This ensures that the centrifugal elements are returned to the uncoupled position when falling below the permissible maximum speed of the safety rope or when the lift system. As a result, after an unlocking of the clamping device, which is preferably done manually by means of a manual operating element separately, the rope catching device together with the lift system again perform their proper function.

Vorzugsweise weist die Fliehkraftkupplung eine Einstellschraube zur Einstellung der Vorspannung der Rückstellfeder auf. Je höher die Vorspannung der Rückstellfeder eingestellt wird, desto höher ist die erforderliche Rotationsgeschwindigkeit des Fliehkraftmechanismus, bis die Fliehkraftelemente in Kupplungsstellung gebracht sind.Preferably, the centrifugal clutch has an adjusting screw for adjusting the bias of the return spring. The higher the bias of the return spring is set, the higher the required rotational speed of the centrifugal mechanism until the centrifugal elements are brought into the coupling position.

In einer bevorzugten Ausgestaltung der Seilfangvorrichtung ist das Betätigungselement mit einem Drehmomenterzeuger gekoppelt, wobei der Drehmomenterzeuger eine mit der Antriebskontur des Betätigungselements komplementär korrespondierende Antriebskontur aufweist, und vorzugsweise ausgewählt ist aus der Liste bestehend aus: Drehhebel, Handrad, Drehknauf, oder Elektro- oder Druckluftschrauber.In a preferred embodiment of the rope catching device, the actuating element is coupled to a torque generator, the torque generator having a drive contour of the actuating element complementarily complementary drive contour, and is preferably selected from the list consisting of: rotary lever, handwheel, knob, or electric or pneumatic screwdriver.

Der Drehmomenterzeuger und das Betätigungselement sind vorzugsweise dergestalt aufeinander abgestimmt, dass die komplementär korrespondierend ausgebildeten Antriebskonturen ein von Standartschlüsselmaßen abweichendes geometrisches Profil aufweisen.The torque generator and the actuating element are preferably matched to one another such that the complementarily correspondingly formed drive contours have a geometric profile deviating from standard key dimensions.

Besonders bevorzugt ist der Drehmomenterzeuger derart mit dem Betätigungselement gekoppelt, dass ein Drehmoment nur in einer ersten Drehrichtung erfolgt, während in der entgegengesetzten zweiten Drehrichtung entweder keine Drehmomentübertragung erfolgt oder eine Bewegung in die zweite Drehrichtung mechanisch unterbunden ist.Particularly preferably, the torque generator is coupled to the actuating element such that a torque takes place only in a first direction of rotation, while in the opposite second direction of rotation either no torque transmission takes place or a movement in the second direction of rotation is mechanically prevented.

Die erste Drehrichtung, in der das Drehmoment übertragen werden kann, ist gemäß dieser Ausführungsform gleich der Drehrichtung der Tastrolle bei Sinkbewegung der Seilfangvorrichtung relativ zum Fangseil.The first direction of rotation, in which the torque can be transmitted, according to this embodiment is equal to the direction of rotation of the follower roller at Sinkbewegung the rope catching device relative to the safety rope.

Die Erfindung betrifft weiterhin eine Liftanlage, insbesondere Personen- oder Lastaufzugsanlage, mit einem Beförderungsmittel zu Aufnahme von Personen oder Lasten, einer Antriebsvorrichtung, die mit dem Beförderungsmittel gekoppelt ist und dazu ausgebildet ist, das Beförderungsmittel wahlweise aufwärts oder abwärts zu verfahren, wobei die Antriebsvorrichtung insbesondere als Seildurchlaufwinde ausgebildet ist, einem Tragseil, an welchem die Antriebsvorrichtung angreift, einem Fangseil, und einer Seilfangvorrichtung, welche mit dem Beförderungsmittel gekoppelt, zur Erfassung einer Relativgeschwindigkeit zwischen dem Beförderungsmittel und dem Fangseil eingerichtet und dazu ausgebildet ist, mittels Angreifen des Fangseils das Beförderungsmittel zu stoppen, sobald ein vorbestimmter Wert der Relativgeschwindigkeit erreicht oder überschritten wird.The invention further relates to a lift system, in particular passenger or freight lift installation, with a means of transport for receiving persons or loads, a drive device which is coupled to the conveyor and is adapted to selectively move the conveyor upward or downward, wherein the drive device in particular is designed as a cable winch, a carrying cable to which the drive device engages, a safety rope, and a rope catching device which is coupled to the means of transport, adapted to detect a relative speed between the conveyor and the safety rope and adapted to, by means of engagement of the safety cable to the means of transport stop as soon as a predetermined value of the relative speed is reached or exceeded.

Die Erfindung löst die ihr zugrunde liegende Aufgabe bei einer solchen Liftanlage, indem sie eine Seilfangvorrichtung aufweist, die nach einer der vorstehend beschriebenen bevorzugten Ausführungsformen ausgebildet ist. Die erfindungsgemäße Liftanlage weist die gleichen Vorteile und bevorzugten Ausführungsformen wie die erfindungsgemäße Seilfangvorrichtung auf, weswegen diesbezüglich auf die obigen Ausführungen verwiesen wird.The invention solves its underlying object in such a lift system by having a rope catching device, which is designed according to one of the preferred embodiments described above. The lift system according to the invention has the same advantages and preferred embodiments as the rope catching device according to the invention, for which reason reference is made in this regard to the above statements.

Die Erfindung wird im Folgenden anhand eines bevorzugten Ausführungsbeispiels unter Bezugnahme auf die beiliegenden Figuren näher erläutert. Hierbei zeigen:

Fig. 1
eine prinzipielle Frontansicht einer Seilfangvorrichtung gemäß einem bevorzugten Ausführungsbeispiel,
Fig. 2
eine prinzipielle räumliche Ansicht der Seilfangvorrichtung gemäß Fig. 2.,
Fig. 3
eine prinzipielle räumliche Darstellung der Seilfangvorrichtung gemäß Fig. 1 und 2 in teilmontiertem Zustand, und
Fig. 4
eine prinzipielle Frontansicht der Teildarstellung gemäß Fig. 3, und
Fig. 5
eine erfindungsgemäße Liftanlage.
The invention will be explained in more detail below with reference to a preferred embodiment with reference to the accompanying figures. Hereby show:
Fig. 1
a schematic front view of a rope catching device according to a preferred embodiment,
Fig. 2
a basic spatial view of the rope catching device according to Fig. 2 .,
Fig. 3
a basic spatial representation of the rope catching device according to Fig. 1 and 2 in partially assembled condition, and
Fig. 4
a schematic front view of the partial view according to Fig. 3 , and
Fig. 5
a lift system according to the invention.

In Figur 1 ist eine Seilfangvorrichtung 1 gezeigt, die zur Montage an einer Liftanlage vorbereitet ist. Die Seilfangvorrichtung 1 weist einen Fangseileinlass 3 und einen Fangseilauslass 5 an einem Gehäuse 7 auf. Ein Fangseil 9 erstreckt sich durch den Fangseileinlass 3 und Fangseilauslass 5 hindurch und verläuft hier zwischen innerhalb des Gehäuses 7.In FIG. 1 a rope catching device 1 is shown, which is prepared for mounting on a lift system. The rope catching device 1 has a catching cable inlet 3 and a catching cable outlet 5 on a housing 7. A safety cable 9 extends through the safety cable inlet 3 and the safety cable outlet 5 and extends here between inside the housing 7.

Die Seilfangvorrichtung 1 weist einen Verriegelungshebel 11 zum manuellen Auslösen einer (nicht dargestellten) Klemmvorrichtung im Inneren des Gehäuses 7 auf. Ferner weist die Seilfangvorrichtung 1 einen Entriegelungshebel 13 zum manuellen Entriegeln der Klemmvorrichtung im Inneren des Gehäuses 7 auf.The rope catching device 1 has a locking lever 11 for manually triggering a clamping device (not shown) in the interior of the housing 7. Furthermore, the rope catching device 1 has an unlocking lever 13 for manually unlocking the clamping device in the interior of the housing 7.

An der Seilfangvorrichtung 1 ist an dem Gehäuse 7, insbesondere an dem Gehäusedeckel 7a (Figur 2) eine Ausnehmung 15 eingebracht. Ein Betätigungselement 17 ist innerhalb der Ausnehmung 15 derart angeordnet, dass es von außerhalb des Gehäuses 7 mittels eines Drehmomenterzeugers 19 betätigbar ist. Vorzugsweise weisen das Betätigungselement 17 und der Drehmomenterzeuger 19 komplementär korrespondierende Antriebskonturen auf, die eine Drehmomentübertragung auf das Betätigungselement ermöglichen. Besonders bevorzugt sind die komplementär korrespondierenden Angriffsprofile zum formschlüssigen Verbinden des Drehmomenterzeugers 19 mit dem Betätigungselement 17 ausgebildet. Mittels des Drehmomenterzeugers 19, der im vorliegenden Ausführungsbeispiel als Handhebel ausgebildet ist, ist das Betätigungselement 17 in Richtung des Pfeils 21 drehbeweglich gelagert.At the rope catching device 1 is on the housing 7, in particular on the housing cover 7a ( FIG. 2 ) introduced a recess 15. An actuating element 17 is arranged within the recess 15 such that it can be actuated from outside the housing 7 by means of a torque generator 19. Preferably, the actuating element 17 and the torque generator 19 have complementary corresponding drive contours, which enable a torque transmission to the actuating element. Particularly preferably, the complementary corresponding attack profiles for the positive connection of the torque generator 19 are formed with the actuating element 17. By means of the torque generator 19, which is formed in the present embodiment as a hand lever, the actuating element 17 is rotatably mounted in the direction of the arrow 21.

Das Fangseil 9 bewegt sich im Hubbetrieb der Liftanlage (Figur 5) in Richtung des Pfeils A durch das Gehäuse 7 der Seilfangvorrichtung 1 hindurch. Im Inneren des Gehäuses 7 ist eine (nicht gezeigte) Tastrolle angeordnet, die an dem Fangseil 9 anliegt und von dem Fangseil 9 angetrieben wird. Die Tastrolle 27 ist im Wesentlichen drehstarr mit einer Auslösevorrichtung 23 verbunden, die in den Figuren 3 und 4 detaillierter dargestellt wird.The safety cable 9 moves in the lifting operation of the lift ( FIG. 5 ) in the direction of the arrow A through the housing 7 of the rope catching device 1 therethrough. Inside the housing 7 a (not shown) follower roller is arranged, which bears against the safety cable 9 and is driven by the safety cable 9. The follower roller 27 is substantially torsionally rigidly connected to a triggering device 23, which in the Figures 3 and 4 is shown in more detail.

In Figur 2 ist die Seilfangvorrichtung 1 in einer Außenansicht perspektivisch dargestellt. Das Fangseil 9 wurde zur leichteren Erkennbarkeit ausgeblendet. Es gelten die obigen Erläuterungen zur Figur 1 entsprechend. Das Gehäuse 7 ist in eine Gehäuserückwand 7b und einen Gehäusedeckel 7a unterteilt. Das Betätigungselement 17 erstreckt sich durch die Ausnehmung 4 in dem Gehäusedeckel 7a hindurch, so dass der mit der Antriebskontur versehene Endabschnitt des Betätigungselements von außen mittels des Drehmomenterzeugers 19 angreifbar ist.In FIG. 2 the rope catching device 1 is shown in perspective in an external view. The safety rope 9 has been hidden for easier recognition. The above explanations apply to FIG. 1 corresponding. The housing 7 is divided into a housing rear wall 7b and a housing cover 7a. The actuating element 17 extends through the recess 4 in the housing cover 7a, so that the end section of the actuating element provided with the drive contour can be attacked from outside by means of the torque generator 19.

In Figur 3 ist das Gehäuse 7 mit demontiertem Gehäusedeckel 7a gezeigt, was den Blick auf eine Auslösevorrichtung 23 freigibt. Die Auslösevorrichtung 23 weist einen Fliehkraftmechanismus 25 auf. Der Fliehkraftmechanismus 25 wiederum ist im Wesentlichen drehstarr mit der Tastrolle 27 verbunden (teilweise verdeckt dargestellt).In FIG. 3 the housing 7 is shown with dismantled housing cover 7a, which releases the view of a triggering device 23. The triggering device 23 has a centrifugal mechanism 25. The centrifugal force mechanism 25, in turn, is connected in a torsionally rigid manner to the follower roller 27 (partially hidden).

Die Auslösevorrichtung 23 umfasst das Betätigungselement 17, welches als Wellenzapfen ausgebildet ist, der ein Wellenende 29 aufweist, an welchem die Antriebskontur ausgebildet ist. Im vorliegenden Beispiel wird die Antriebskontur durch zwei parallele Flanken 31a,b gebildet. Vorzugsweise sind die Angriffsflanken 31a,b in einer Schlüsselweite voneinander beabstandet, die mit Standartwerkzeugen nicht formschlüssig gegriffen werden kann, um eine Fehlbedienung durch nicht sachgemäß ausgebildetes Bedienpersonal mit nicht fachgerechtem Werkzeug möglichst zu unterbinden.The triggering device 23 comprises the actuating element 17, which is designed as a shaft journal, which has a shaft end 29, on which the drive contour is formed. In the present example, the drive contour is formed by two parallel flanks 31a, b. Preferably, the attack flanks 31a, b spaced from each other in a key width, which can not be positively gripped with standard tools to prevent incorrect operation by not properly trained operating personnel with non-professional tools as possible.

Die Fliehkraftkupplung 25 weist ein erstes Koppelglied 33 auf, welches drehfest mit der Tastrolle 27 und dem Betätigungselement 17 verbunden ist. Ferner weist der Fliehkraftmechanismus 25 ein zweites Koppelglied 35 auf, welches drehbar, vorzugsweise koaxial zu dem ersten Koppelglied 33, an der Auslösevorrichtung 23 gelagert ist.The centrifugal clutch 25 has a first coupling member 33, which is non-rotatably connected to the sensing roller 27 and the actuating element 17. Further, the centrifugal mechanism 25 on a second coupling member 35, which is rotatable, preferably coaxial with the first coupling member 33, is mounted on the triggering device 23.

Ferner weist der Fliehkraftmechanismus 25 ein erstes Fliehkraftelement 37a und ein zweites Fliehkraftelement 37b auf. An den Fliehkraftelementen 37a, 37b sind jeweils mehrere Mitnehmer 39 in Form von radial nach außen erstreckten Vorsprüngen ausgebildet. Die Mitnehmer 39 sind dazu ausgebildet, in einer Kupplungsstellung der Fliehkraftkupplung 25 mit einem Auslösehebel 41 in Eingriff zu gelangen, welcher eine Betätigung der (nicht gezeigten) Klemmvorrichtung in allgemein bekannter Weise bewirkt. Einzelheiten zur Kinematik ergeben sich aus Figur 4.Furthermore, the centrifugal force mechanism 25 has a first centrifugal force element 37a and a second centrifugal force element 37b. At the centrifugal force elements 37a, 37b are each a plurality of carriers 39 in the form of radially outwardly extending projections. The drivers 39 are adapted to engage in a coupling position of the centrifugal clutch 25 with a release lever 41 into engagement, which is a Actuation of the (not shown) clamping device effected in a well-known manner. Details on the kinematics arise FIG. 4 ,

Wie in Figur 4 dargestellt ist, sind die Fliehkraftelemente 37a,b jeweils rein rotatorisch beweglich an dem ersten Koppelglied 33 gelagert, vorzugsweise mittels Lagerbolzen 43.As in FIG. 4 is shown, the centrifugal force elements 37a, b each mounted purely rotationally movable on the first coupling member 33, preferably by means of bearing pin 43rd

Ferner sind die Fliehkraftelemente 37a,b an dem zweiten Koppelglied 35 in Langlöchern 45a,b mittels korrespondierend ausgebildeter Gleitsteine 47a,b gelagert. Die Langlöcher 45a,b erstrecken sich bezogen auf eine Rotationsachse R der Auslösevorrichtung 23 in radialer Richtung. Dadurch, dass die Fliehkraftelemente 37a,b bei ausreichend schneller Rotation der Auslösevorrichtung 23 bzw. der Tastrolle 27 in demjenigen Lagerabschnitt der Fliehkraft nachgeben können, in dem die Langlöcher 45a,b ausgebildet sind, und in dem das zweite Koppelglied 35 relativ zu dem ersten Koppelglied 33 drehbar gelagert ist, wandern die Mitnehmer 39 der Fliehkraftelemente 37a,b bei steigender Geschwindigkeit der Fliehkraftkupplung 25 radial nach außen. Erreicht bzw. überschreitet die Rotationsgeschwindigkeit der Fliehkraftkupplung 25 einen vorbestimmten Wert, beispielsweise 30 m/min gemäß EN1808, berühren die Mitnehmer 39 den Auslösehebel 41 und Betätigen die Klemmvorrichtung. Diese Ausweichbewegung in Folge der Fliehkraft wird entweder durch die Tastrolle 27 im normalen Betrieb bewirkt, oder durch rotatorisches Bewegen des Betätigungselements 17.Furthermore, the centrifugal force elements 37a, b are mounted on the second coupling member 35 in oblong holes 45a, b by means of correspondingly formed sliding blocks 47a, b. The slots 45a, b extend in relation to a rotational axis R of the triggering device 23 in the radial direction. Characterized in that the centrifugal force elements 37a, b at sufficiently fast rotation of the triggering device 23 and the follower roller 27 can give in that bearing portion of the centrifugal force in which the slots 45a, b are formed, and in which the second coupling member 35 relative to the first coupling member 33 is rotatably mounted, the driver 39 of the centrifugal force elements 37 a, b move radially outward with increasing speed of the centrifugal clutch 25. If the rotational speed of the centrifugal clutch 25 reaches or exceeds a predetermined value, for example 30 m / min in accordance with EN1808, the drivers 39 contact the release lever 41 and actuate the clamping device. This evasive movement as a result of the centrifugal force is effected either by the sensing roller 27 in normal operation, or by rotational movement of the actuating element 17th

Die Gleitsteine 47a,b, mit denen die Fliehkraftelemente 37a,b an dem zweiten Koppelglied 35 gleitend gelagert sind, sind mittels eines als Spannfeder ausgebildeten Rückstellelements 48 verbunden, vorzugsweise vorgespannt. Zum Justieren der Vorspannung ist weiter vorzugsweise eine Einstellschraube 50 an dem ersten Gleitstein 47a angeordnet.The sliding blocks 47a, b, with which the centrifugal elements 37a, b are slidably mounted on the second coupling member 35 are connected by means of a return spring 48 designed as a tension spring, preferably biased. For adjusting the bias further preferably an adjusting screw 50 is arranged on the first sliding block 47a.

In Figur 5 ist eine Liftanlage gemäß einem bevorzugten Ausführungsbeispiel der Erfindung gezeigt, um den Einbauort der Seilfangvorrichtung 1 zu verdeutlichen.In FIG. 5 a lift system according to a preferred embodiment of the invention is shown to illustrate the installation location of the rope catching device 1.

Die Liftanlage 100 weist ein Beförderungsmittel 103 auf, im vorliegenden Beispiel als Kabine für Personen oder Lasten abgebildet. An dem Beförderungsmittel 103 ist eine Antriebsvorrichtung 105, vorzugsweise dachseitig, angebracht. Die Antriebsvorrichtung 105 ist im vorliegenden Beispiel als Seildurchlaufwinde ausgebildet.The lift system 100 has a conveyor 103, shown in the present example as a cabin for persons or loads. On the conveyor means 103, a drive device 105, preferably on the roof side, mounted. The drive device 105 is formed in the present example as a cable winch.

An dem Beförderungsmittel 103 ist eine Seilfangvorrichtung 1 befestigt. Die Seilfangvorrichtung 1 greift an ein Fangseil 9 an, welches parallel zu einem Tragseil 109 geführt ist. An dem Tragseil 109 greift die Antriebsvorrichtung 105 an. Die Seilfangvorrichtung 1 ist in vorstehend beschriebener Weise dazu eingerichtet, die Relativgeschwindigkeit zwischen ihr und dem Fangseil 9 zu erfassen, insbesondere mittels der Auslösevorrichtung 23 gemäß den Figuren 3 und 4. Bei Erreichen oder Überschreiten einer vorbestimmten Maximalgeschwindigkeit, beispielsweise 30 m/min, fängt die Seilfangvorrichtung 1 das Beförderungsmittel 103 am Fangseil 9 auf. Unterhalb des Beförderungsmittels 103 ist ein Spanngewicht 113 befestigt, welches das Tragseil spannt und in senkrechter Ausrichtung hält. Die Seilfangvorrichtung 1 ist vorzugsweise so angebracht, dass sie von Wartungspersonal leicht zugänglich ist. Der Zugang erfolgt vorzugsweise entweder von innerhalb des Beförderungsmittels 103 oder von außerhalb, beispielsweise vom Dach des Beförderungsmittels 103 aus.At the conveyor means 103, a rope catching device 1 is attached. The rope catching device 1 acts on a safety rope 9, which parallel to a support cable 109th is guided. On the support cable 109, the drive device 105 engages. The rope catching device 1 is configured in the manner described above to detect the relative speed between it and the safety rope 9, in particular by means of the triggering device 23 according to FIGS Figures 3 and 4 , Upon reaching or exceeding a predetermined maximum speed, for example 30 m / min, the rope catching device 1 catches the conveyor 103 on the safety rope 9. Below the conveying means 103, a tensioning weight 113 is attached, which tensions the supporting cable and keeps it in vertical alignment. The rope catching device 1 is preferably mounted so that it is easily accessible by maintenance personnel. Access is preferably either from within the conveyance means 103 or from outside, for example from the roof of the means of transport 103.

Wie sich aus den vorstehenden Erläuterungen zu den beigefügten Figuren ergibt, ist das Überprüfen der Funktion der Auslösevorrichtung 23 aus besonders einfache Weise dadurch ermöglicht worden, dass das Betätigungselement 17 durch die Ausnehmung 15 hindurch nun von außen erreichbar und betätigbar ist. Der Vorgang der Funktionsüberprüfung ist erfindungsgemäß in einem Bruchteil der zuvor benötigten Zeit möglich und kann von einem Bediener ohne Begleitung ohne weiteres und zuverlässig durchgeführt werden. Dies senkt die Hemmnis eines jeden Betreibers, den vorgeschriebenen arbeitstäglichen Überprüfungsvorgang praktisch durchzuführen deutlich und führt zu einer insgesamten signifikanten Verbesserung der Sicherheitslage überall dort, wo die erfindungsgemäße Liftanlage mit der erfindungsgemäßen Seilfangvorrichtung zum Einsatz kommt.As is apparent from the above explanations to the accompanying figures, the checking of the function of the triggering device 23 has been made possible from a particularly simple manner, that the actuating element 17 through the recess 15 through now accessible from the outside and can be actuated. The operation of the function check is possible according to the invention in a fraction of the time previously required and can be carried out by an operator without accompaniment easily and reliably. This lowers the obstruction of each operator to carry out the prescribed daily working check process practically and leads to an overall significant improvement in the security situation wherever the lift system according to the invention is used with the rope catching device according to the invention.

Claims (12)

Seilfangvorrichtung (1) für eine Liftanlage mit einem Fangseil (9), mit - einem Gehäuse (7) mit einem Fangseileinlass (3) und einem Fangseilauslass (5), - einer in dem Gehäuse (7) angeordneten Klemmvorrichtung, die dazu eingerichtet ist, von einer Freigabestellung, in welcher das Fangseil (9) relativ zu der Klemmvorrichtung beweglich ist, in eine Klemmstellung gebracht zu werden, in welcher die Klemmvorrichtung an dem Fangseil (9) angreift, und - einer in dem Gehäuse (7) angeordneten Auslösevorrichtung (23), welche dazu eingerichtet ist, die Geschwindigkeit des sich zwischen dem Fangseileinlass (3) und dem Fangseilauslass (5) erstreckenden Fangseils (9) zu erfassen, und mit der Klemmvorrichtung derart wirkverbunden ist, dass bei Überschreiten einer vorbestimmten Geschwindigkeit des Fangseils (9) die Klemmvorrichtung von der Freigabestellung in die Klemmstellung verbracht wird, dadurch gekennzeichnet, dass die Auslösevorrichtung (23) ein von außerhalb des Gehäuses (7) bedienbares, bewegliches Betätigungselement (17) aufweist, welches mit der Auslösevorrichtung derart kraftübertragend gekoppelt ist, dass sich die von der Auslösevorrichtung erfasste Geschwindigkeit in Abhängigkeit der Betätigungsgeschwindigkeit des Betätigungselements erhöht.Rope catching device (1) for a lift with a safety rope (9), with - a housing (7) with a safety cable inlet (3) and a safety cable outlet (5), - One in the housing (7) arranged clamping device which is adapted to be brought from a release position in which the safety cable (9) is movable relative to the clamping device in a clamping position in which the clamping device on the safety catch (9 ) attacks, and - One in the housing (7) arranged release device (23) which is adapted to the speed of the between the safety rope inlet (3) and the Fangseilauslass (5) extending catch rope (9) to capture, and is so operatively connected to the clamping device in that, when a predetermined speed of the safety rope (9) is exceeded, the clamping device is moved from the release position into the clamping position. characterized in that the triggering device (23) from a outside of the housing (7) operable, movable actuating element (17), which is so coupled force-transmitting to the triggering device, that increases the speed detected by the triggering device in dependence on the operating speed of the actuating element , Seilfangvorrichtung (1) nach Anspruch 1,
wobei die Auslösevorrichtung einen Fliehkraftmechanismus(25) aufweist, welche in Abhängigkeit der Geschwindigkeit des Fangseils (9) rotatorisch bewegbar und dazu eingerichtet ist, in einer Kupplungsstellung die Klemmvorrichtung in die Sperrstellung zu bringen.Rope catching device (1) according to claim 1,
wherein the triggering device comprises a centrifugal force mechanism (25) which is rotationally movable in dependence on the speed of the safety catch (9) and adapted to bring the clamping device in the locked position in a coupling position. Seilfangvorrichtung (1) nach Anspruch 2,
wobei der Fliehkraftmechanismus (25) dazu eingerichtet ist, in Abhängigkeit ihrer Rotationsgeschwindigkeit die Kupplungsstellung einzunehmen, sobald die Fangseilgeschwindigkeit den vorbestimmten Wert überschreitet.Rope catching device (1) according to claim 2,
wherein the centrifugal force mechanism (25) is adapted to assume the coupling position as a function of its rotational speed as soon as the safety rope speed exceeds the predetermined value. Seilfangvorrichtung (1) nach einem der vorstehenden Ansprüche,
wobei das Betätigungselement (17) im Wesentlichen drehstarr mit dem Fliehkraftmechanismus (25) gekoppelt ist.Rope catching device (1) according to one of the preceding claims,
wherein the actuator (17) is substantially rotationally rigidly coupled to the centrifugal force mechanism (25). Seilfangvorrichtung (1) nach einem der vorstehenden Ansprüche,
wobei das Betätigungselement (17) als Wellenzapfen ausgebildet ist, der ein Wellenende (29) mit einer Antriebskontur (31a,b) zur Drehmomentübertragung aufweist.Rope catching device (1) according to one of the preceding claims,
wherein the actuating element (17) is designed as a shaft journal which has a shaft end (29) with a drive contour (31a, b) for transmitting torque. Seilfangvorrichtung (1) nach einem der Ansprüche 2 bis 5,
wobei die Auslösevorrichtung eine Tastrolle (27) aufweist, die drehbar und von dem Fangseil (9) antreibbar in dem Gehäuse (7) gelagert ist, und im Wesentlichen drehstarr mit dem Fliehkraftmechanismus (25) gekoppelt ist.Rope catching device (1) according to one of claims 2 to 5,
wherein the triggering device comprises a follower roller (27) which is rotatably and drivably supported in the housing (7) by the catching cable (9) and is coupled in a torsionally rigid manner to the centrifugal force mechanism (25). Seilfangvorrichtung (1) nach einem der Ansprüche 2 bis 6,
wobei der Fliehkraftmechanismus (25) ein drehstarr mit dem Betätigungselement (17) verbundenes erstes Koppelglied (33) aufweist und ein relativ zu dem Betätigungselement (17) drehbar gelagertes zweites Koppelglied (35) aufweist.Rope catching device (1) according to one of claims 2 to 6,
wherein the centrifugal force mechanism (25) has a first coupling member (33) rotationally rigidly connected to the actuating element (17) and has a second coupling member (35) rotatably mounted relative to the actuating element (17). Seilfangvorrichtung (1) nach Anspruch 7,
wobei der Fliehkraftmechanismus (25) ein oder mehrere Fliehkraftelemente (37a,b) aufweist, die vorzugsweise - an dem ersten Koppelglied (33) ausschließlich schwenkbar gelagert sind, und - an dem zweiten Koppelglied (35) schwenkbar und bezogen auf die Drehachse (R) des zweiten Koppelgliedes (35) radial verschiebbar gelagert sind. Rope catching device (1) according to claim 7,
wherein the centrifugal force mechanism (25) one or more centrifugal elements (37 a, b), preferably - Are mounted exclusively on the first coupling member (33) pivotally, and - On the second coupling member (35) pivotally and relative to the axis of rotation (R) of the second coupling member (35) are mounted radially displaceable. Seilfangvorrichtung (1) nach Anspruch 8,
wobei das Fliehkraftelement bzw. die Fliehkraftelemente (37a,b) mit einer Rückstellfeder (48) gekoppelt sind, welche dazu eingerichtet ist, auf die Fliehkraftelemente (37a,b) eine Rückstellkraft entgegen der Fliehkraft aufzubringen.Rope catching device (1) according to claim 8,
wherein the centrifugal force element (s) (37a, b) is coupled to a return spring (48) which is adapted to apply a restoring force against centrifugal force to the centrifugal force elements (37a, b). Seilfangvorrichtung (1) nach Anspruch 9,
wobei der Fliehkraftmechanismus (25) eine Einstellschraube (50) zur Einstellung der Vorspannung der Rückstellfeder (48) aufweist.Rope catching device (1) according to claim 9,
wherein the centrifugal force mechanism (25) comprises an adjusting screw (50) for adjusting the bias of the return spring (48). Seilfangvorrichtung (1) nach einem der Ansprüche 5 bis 10,
wobei das Betätigungselement (17) mit einem Drehmomenterzeuger (19) gekoppelt ist, wobei der Drehmomenterzeuger eine mit der Antriebskontur des Betätigungselements komplementär korrespondierende Antriebskontur aufweist, und vorzugsweise ausgewählt ist aus der Liste bestehend aus: - Drehhebel, - Handrad, - Drehknauf, insbesondere mit Wickelseil zum rotatorischen Antreiben oder - Elektro- oder Druckluftschrauber. Rope catching device (1) according to one of claims 5 to 10,
wherein the actuating element (17) is coupled to a torque generator (19), wherein the torque generator has a drive contour complementarily corresponding to the drive contour of the actuating element, and is preferably selected from the list consisting of: - rotary lever, - Handwheel, - knob, especially with winding rope for rotary driving or - Electric or pneumatic screwdriver. Liftanlage (100), insbesondere Personen- oder Lastenaufzugsanlage, mit - einem Beförderungsmittel (103) zur Aufnahme von Personen oder Lasten, - einer Antriebsvorrichtung (105), die mit dem Beförderungsmittel (103) gekoppelt und dazu ausgebildet ist, das Beförderungsmittel (103) wahlweise aufwärts oder abwärts zu verfahren, wobei die Antriebsvorrichtung insbesondere als Seildurchlaufwinde ausgebildet ist, - einem Tragseil (109), an welchem die Antriebsvorrichtung (105) angreift, - einem Fangseil (9), und
einer Seilfangvorrichtung (1), welche mit dem Beförderungsmittel (103) gekoppelt, zur Erfassung einer Relativgeschwindigkeit zwischen dem Beförderungsmittel (103) und dem Fangseil (9) eingerichtet und dazu ausgebildet ist, mittels Angreifen des Fangseils (11) das Beförderungsmittel (103) zu stoppen, sobald ein vorbestimmter Wert der Relativgeschwindigkeit erreicht oder überschritten wird,
dadurch gekennzeichnet, dass die Seilfangvorrichtung (1) nach einem der vorstehenden Ansprüche ausgebildet ist. Lift (100), in particular passenger or goods lift, with a means of transport (103) for receiving persons or loads, a drive device (105) which is coupled to the conveying means (103) and adapted to selectively move the conveying means (103) upwards or downwards, wherein the drive device is designed in particular as a rope-passing winch, a suspension cable (109) on which the drive device (105) acts, - a safety rope (9), and
a rope catching device (1) which is coupled to the conveying means (103) and adapted for detecting a relative speed between the conveying means (103) and the catching cable (9) and adapted to engage the conveying means (103) by engaging the catching rope (11) stop as soon as a predetermined value of the relative speed is reached or exceeded,
characterized in that the rope catching device (1) is designed according to one of the preceding claims.
EP15200226.7A 2015-12-15 2015-12-15 Rope catch mechanism, and lift installation with the same Active EP3181503B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DK15200226.7T DK3181503T3 (en) 2015-12-15 2015-12-15 Rope safety device and elevator installation with same
EP15200226.7A EP3181503B1 (en) 2015-12-15 2015-12-15 Rope catch mechanism, and lift installation with the same
ES15200226T ES2966078T3 (en) 2015-12-15 2015-12-15 Cable retaining device and lifting installation with the same

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EP3444215A1 (en) * 2017-08-17 2019-02-20 Aip Aps Methods and systems for testing a fall arrest device
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CN111942990A (en) * 2020-08-05 2020-11-17 锦州大可矿山机械制造有限公司 Cage stall and rope breakage dual-protection device

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