EP1957391B1 - Apparatus for, and method of, triggering an intercepting means - Google Patents

Apparatus for, and method of, triggering an intercepting means Download PDF

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Publication number
EP1957391B1
EP1957391B1 EP06762100A EP06762100A EP1957391B1 EP 1957391 B1 EP1957391 B1 EP 1957391B1 EP 06762100 A EP06762100 A EP 06762100A EP 06762100 A EP06762100 A EP 06762100A EP 1957391 B1 EP1957391 B1 EP 1957391B1
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EP
European Patent Office
Prior art keywords
actuating
actuating mechanism
cable
limiter cable
lift cage
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.)
Not-in-force
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EP06762100A
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German (de)
French (fr)
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EP1957391A1 (en
Inventor
Hans-Ferdinand Von Scholley
Frank Dudde
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ThyssenKrupp Aufzugswerke GmbH
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ThyssenKrupp Aufzugswerke GmbH
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Priority to EP06762100A priority Critical patent/EP1957391B1/en
Publication of EP1957391A1 publication Critical patent/EP1957391A1/en
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Publication of EP1957391B1 publication Critical patent/EP1957391B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—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

Definitions

  • the present invention relates to a device for triggering a safety gear on a car or a conveyor of an elevator system according to the preamble of patent claim 1.
  • the invention further relates to a corresponding method according to the preamble of patent claim 8.
  • an elevator system includes a speed limiter having a speed limiter wheel and a guide wheel with a governor rope extending therebetween connected to an actuating mechanism for a safety device of a car.
  • the governor rope is biased by a spring.
  • This speed limiter mechanism acts to pressurize the safety device in the event of an excessive speed of the car.
  • Such a security system is, for example, in the DE 299 12 544 U1 described.
  • This document describes a device for limiting the speed of elevator systems with anizsbegrenzerrad, a governor rope, a safety gear on the car and a trigger mechanism for the safety gear.
  • the trigger mechanism is designed here as centrifugal force limiter. With such a mechanism, at a predetermined overspeed of the car (for example 20% above allowable maximum speed), the speed governor wheel (idler) can be blocked in rotation by the attached centrifugal device, thereby also blocking the governor-driven governor rope from moving. Due to the standing governor rope and the car or car frame, which continues to move, a catch brake or a safety gear is triggered with increasing governor traction, which brakes or stops the car.
  • the safety brake for example, in a rope-driven centrifugal force limiter or the like can not be triggered when the governor rope is no longer in ner intended position or cracked or no longer exists.
  • Such states of the limiter rope are usually detected electrically by so-called slack rope releases on one of the deflection rollers of the limiter rope, and an electrical emergency stop is subsequently initiated by means of the normal service brake.
  • the safety gear is ineffective under such conditions, which can lead to further dangers, for example, in case of fire or inappropriate personal liberation, to a crash of the car.
  • the aim of the invention is to improve the safety of an elevator installation.
  • the present invention provides a device having the features of claim 1 and a method having the features of claim 9.
  • the solution according to the invention is characterized in that with the proposed device or the corresponding method for triggering a safety gear on a car or a conveyor of an elevator system both an excessive speed of the car or the conveyor as well as a drop or a loss of rope tension the Beipporseils can be determined in a simple manner, and in both cases a proposed safety gear can be triggered directly in a simple and reliable manner.
  • a situation can be avoided in which there is initially a drop or elimination of the Beskyrseilposition, and for this reason in connection thereto an operation of a safety gear is no longer possible.
  • the two ends of the Beipporseils are attached to each other movably mounted components of the trigger mechanism.
  • a normal operating position in which there is sufficient cable tension of the governor rope
  • a release operating position in which the cable tension of the governor rope falls below a certain voltage value
  • the two components of the trigger mechanism in the normal operating position at a first distance, and in the release operating position, a second, different from the first distance to each other.
  • the device according to the invention is characterized in that it can trigger the safety gear both by means of the governor rope traction, and without the help of the governor rope traction. With this configuration, a safe deceleration of a car or a conveyor of a variety of possible situations in a simple manner can be accomplished.
  • the release mechanism in the case of an inadmissible elongation of the governor rope or an inadmissible fall of the cable tension of the governor rope or in the event of breakage of the governor rope, the release mechanism is brought from the normal operating position to the release position by moving one of the mutually movable components of the release mechanism from an operating position relative to the second the movable components are displaced by means of a permanently stored energy into a release position relative to the second of the movable components.
  • This spring can, depending on the design, be designed either as a tension or compression spring.
  • the force provided by the spring is compensated by the rope tension of the governor rope. If there is a drop in voltage or a break of the limiter rope, leads This results in a change in the length of the spring, whereby a catch mechanism operatively connected to the spring on the car or the conveyor of the elevator system can be triggered.
  • the energy stored by the spring over its entire stroke corresponds to a force which corresponds at least to the weight of the maximum single length of the governor rope from top to bottom plus the release force of the safety gear.
  • a mechanism for enabling a relative movement of the triggering mechanism with respect to the car is provided such that the triggering mechanism can be moved from the defined normal operating position to a further triggering position in the case of a speed of the car or of the conveyor which exceeds a presettable maximum speed.
  • This mechanism expediently has a slot formed on the trigger mechanism into which a bolt attached to the elevator car or conveyor engages. If there is a slowing down or a stoppage of the governor rope due to an excessive speed of the elevator car due to an obstruction of the governor rope, the car, limited by the length of the oblong hole, can make a relative movement to the governor cable. Also by means of this relative movement provided on the car or the conveyor safety gear can be triggered in a simple and reliable manner.
  • the trigger mechanism is formed with a catch rod movably mounted on the car.
  • a catch rod realizes the operative connection between the trigger mechanism and the safety device provided on the car or the conveyor, so that when the two components of the trigger mechanism relative to each other or the trigger mechanism in total relative to the car or the conveyor triggering the safety gear can be ensured.
  • the first component of the trigger mechanism is designed as a housing, and the second component is designed as a slide displaceable in the housing.
  • the governor rope is further guided around two pulleys, wherein the one end of the governor rope is attached to the housing and the other end of the governor rope is attached to the plunger slidably mounted in the housing.
  • the housing further expediently has on its outer side a tab which is formed with the slot in which the bolt mounted on the car is displaceable.
  • the catch rod is also attachable, via which the triggering of the safety gear is accomplished.
  • the plunger causes during normal operation by means of a spring action, in particular by means of a tension spring, maintaining the normal operating position of the trigger mechanism in such a way that the governor moves synchronously, ie at the same speed to the car or the conveyor.
  • the governor moves synchronously, ie at the same speed to the car or the conveyor.
  • the Rope tension of the governor rope below a certain cable tension value to a caused by the spring loading relative movement of the plunger within the housing, whereby also a relative movement between the plunger and the catch rod is effected, which leads to the triggering of the safety gear.
  • the housing has two mutually displaceable and lockable components, in particular tubes, so that the overall length of the housing is adjustable.
  • the housing has two mutually displaceable and lockable components, in particular tubes, so that the overall length of the housing is adjustable.
  • the plunger is guided in a sleeve within the housing, wherein one end of the sleeve serves as a stop for the head portion of the plunger.
  • This sleeve is expediently designed to be displaceable and lockable with respect to the housing, so that an adaptation of the spring tension and / or the cable tension of the governor rope can be achieved by corresponding displacement of the sleeve relative to the housing.
  • the displaceability of the housing components relative to one another or of the sleeve relative to the components of the housing is expediently realized by means of corresponding internal or external threads.
  • FIG. 1 is an elevator installation, which comprises a preferred embodiment of the device according to the invention, designated overall by 100.
  • a car is shown schematically and designated 110, on which a safety gear 146 is arranged.
  • the device according to the invention has a trigger mechanism 120 and a limiter cable 122.
  • the limiter rope 122 is guided around two deflection rollers, namely around a deflection roller provided in the lower shaft area 150, and a guide shaft 152 mounted in the upper shaft area.
  • a first (upper) end 122a of the limiter cable 122 is connected to an upper terminal 120a of the triggering mechanism, and a second (lower) end 122b of the limiter cable 122 is connected to a lower terminal 120b of the triggering mechanism 120.
  • the connections 120a and 120b are expediently designed as cable locks.
  • the upper terminal 120 a is formed at the upper end of a housing 124 of the triggering mechanism 120.
  • the lower limiter cable end 122b is attached at the bottom to a slidable plunger 126 provided in the housing 124.
  • the cable tension of the governor rope 122 is adjustable in a manner known per se by means of positioning the deflecting rollers 150, 152, for example by means of a tension weight 154. An additional or alternative possibility of adjusting the cable tension will be described below with reference to FIG. 4 explained.
  • the cable tension causes a downwardly directed force illustrated by an arrow G, which acts on the plunger 126.
  • the plunger 126 is further acted upon by a compression spring 130 opposite to the direction of the cable tension (illustrated by arrow F), and lies in the in FIG. 1 illustrated normal operating state with its head portion 126a on an upper ram storage (or stop) 128 on.
  • a recess is formed, through which the spring 130 engages the head end 126a of the plunger 126. Accordingly, in the in FIG. 1 illustrated normal operating state the by the rope tension applied limiter rope tensile force greater than a force caused by the spring 130.
  • the cable tension of the governor rope 122, and thus the preload between the upper and lower governor cable connections 122a, 122b, must be so great that in the normal event of a fall, i. at too high speed of the car with a functioning or intact limiter rope 122 and subsequent braking of the governor rope by a speed limiter, the safety gear 146 is triggered both when catching down and when catching up with the help of Beskyrseil-pulling force.
  • the cable tension must be such that the plunger 126 is pulled firmly onto the top of the upper plunger bearing 128, and the plunger or its head portion 126a is not raised by the spring 130 and / or car accelerations during normal driving operation. ie in the representation of FIG. 1 force exerted by the compression spring on the plunger upwards (arrow F) must be more than compensated by the cable tension (arrow G).
  • the plunger 126 is longitudinally displaceable, i. in the direction of travel of the trigger mechanism 120 and the car, in the housing 124 slidably mounted.
  • a tab 131 On the outside of the housing 124 is a tab 131 having a slot 132 provided therein, whose extension direction is parallel to the direction of travel of the car 110, formed.
  • this slot 132 engages a fastened to the car 110 bolt 111 a.
  • car 110 and housing 124 to each other slidably connected.
  • a catch rod 140 extends through an in FIG. 1 not shown, but in FIG. 3 recognizable opening 144 in the housing 124 in the direction of the elevator car 110.
  • the catch rod 140 is biased at its car-side end by means of a tension spring 112 provided on the car.
  • the catch rod 140 is the housing side and car side mounted, in particular pivotally mounted, and also car side with in FIG. 1 schematically illustrated safety gear 146, which is triggered during a pivoting movement of the catch rod (as will be explained in detail below).
  • the connection between catch rod 140 and the catch 146 is in the FIGS. 1 and 2 indicated schematically at 142.
  • the upper deflection roller 152 is expediently designed as a speed limiting wheel. As a result, blocks the upper guide pulley 152 and decelerates the governor rope when exceeding a maximum permissible speed of the Beskyrseiles 122 and thus moving in the same operating state at the same speed car 110 and thereby causing a relative movement between governor 122 and thus triggering device 120 and car 110.
  • the lower guide roller 150 is expediently designed as a chip roll, which is mounted displaceably or pivotably and connected to a tensioning weight 154, so that the governor rope 122 always maintains a certain minimum stress.
  • This minimum voltage ensures a safe running of the governor rope 122 in the respective (not shown) wheel grooves of the guide rollers 150, 152 and thus a reliable triggering of the safety gear in the case of blocking the trained asxiasbeskyrrad deflection roller 152th
  • FIG. 2a is, in a further simplified representation, again the normal operating state of the device according to the invention shown.
  • the cable tension of the governor rope 122 is sufficiently large, so that the head end 126a of the plunger 126 is pulled against the upper plunger bearing 128.
  • the travel speed of the elevator car 110 and the governor cable 122 operatively connected to the car 110 is within the allowable range, i. there is no blockage or deceleration of the deflection roller 152.
  • the catch rod 140 is in the neutral position, ie there is no triggering of the connected via the connection 142 with the catch rod 140 safety gear 146th
  • FIG. 2b shows the state in which the governor rope 122 is de-energized. This condition may occur, for example, due to a rope break.
  • a rope break is in FIG. 2b ) indicated schematically at the point of the arrow S. Analogous considerations also arise in the event that the cable tension of the governor rope 122 falls below a certain minimum value.
  • the compression spring 130 causes the plunger 126 to move upwardly within the housing 124 and thus also to remove the head region 126a of the plunger from the upper pushrod support 128. This is due to the fact that only the upwardly directed force caused by the spring 130 acts on the plunger (arrow F in FIG. 1 ). This means that the catch rod 140 connected to the plunger 126 or the head region 126a of the plunger is pushed upwards so that an actuation of the catching device 146 occurs via the connection 142. In this case, the housing which takes over the support of the spring supports downward with the upper edge of the elongated hole 132 on the bolt 111.
  • a third operating state which corresponds to the traditional operating state of a speed limiter device, is in Figure 2c ).
  • the car 110 has exceeded a certain maximum speed.
  • a corresponding rotational speed of the upper deflecting roller 152 which, as already mentioned, is formed in a manner known per se with a blocking device (illustrated schematically and designated by 153).
  • a blocking device 153 may be formed, for example, as a centrifugal force.
  • the limiter cable 122 is decelerated or stopped while the car 110 continues, which leads to a relative movement between the limiter cable 122 and thus the triggering device 120 and the car 110.
  • the cable tension and the force exerted by the spring 130 on the plunger 126 relative to the in FIG. 2a shown normal operating state remain essentially unchanged.
  • Relative movement between the triggering device 120 and the car 110 is transmitted via the catch rod 140 via the connection 142 to the safety gear 146 and triggers the safety gear.
  • FIG. 3 1 shows the housing 124, the cable connections 120a, 120b, the lower end of the plunger 126, the tab 131 and the elongated hole 132 introduced into the tab. Furthermore, one recognizes that from the Housing 124 projecting catch rod 140 and the opening 144th
  • the housing 124 has an upper or outer housing part 124a, and a lower or inner housing part 124b.
  • the housing parts 124a and 124b may be formed, for example, as tubes.
  • FIG. 4 a sectional view of the release mechanism according to FIG. 3 is shown to recognize.
  • the tubes 124a, 124b are in the overlapping region 125, for example by means of formation of corresponding thread devices, against each other displaced and locked together.
  • the total length of the housing 124 is thus variable or adjustable by appropriate displacement of the tubes 124a, 124b.
  • the plunger 126 is longitudinally displaceably mounted in a sleeve 127 which is arranged in the longitudinal direction adjustable and fixable or lockable in the tubes 124a, 124b.
  • the sleeve 127 forms with its upper end 127a the upper ram bearing 128, i. a stop for the head end 126a of the plunger to limit the movement of the plunger 126 in the downward direction. Due to the adjustability and fixability of the sleeve 127 in the longitudinal direction thus an adjustable stop for the plunger movement is provided down.
  • the restricting cable end 122a coming from above is fixed to one end of the upper pipe 124a.
  • the already mentioned opening 144 of the Housing is suitably formed in the upper tube 124a.
  • the catch rod 126 pivotally mounted on the plunger 126 can protrude outward.
  • the housing or the upper tube 124a has at least two laterally offset openings 144, wherein at least one of these openings for easier mounting of the catch rod 140 on the plunger 126 is used.
  • a pivotable mounting of the catch rod 140 on the plunger 126 is conveniently accomplished by means of a hinge 140a.
  • the normal operating positions of the catch rod 140 in solid lines and the release position are shown in dashed lines.
  • a spring plate 134 is arranged, which is displaceable and fixable on the sleeve 127 in the longitudinal direction.
  • the spring plate 134 is expediently displaceable and fixable in the upper or lower tube in the longitudinal direction.
  • the spring plate serves as a lower stop for the spring 130th
  • the sleeve 127 For a relative displacement of sleeve 127 and spring plate 134 to each other for adjusting the spring force, the sleeve 127 expediently has an external thread, and the spring plate 134 has a corresponding internal thread.
  • the spring plate 134 is expediently fastened with its outer circumference to the lower tube 124b.
  • By forming appropriate threads of the spring plate 134 may be formed slidably relative to the lower tube.
  • By forming appropriate thread between the Upper tube and the lower tube can be accomplished by a displacement of the upper tube and the lower tube to each other, also a displacement of the spring plate relative to the upper tube.
  • all adjustments could be made by an additional component, for example with a lever, hydraulically, pneumatically or with an electric drive.
  • a locking example of the upper tube 124a with respect to the lower tube 124b can be achieved after setting a desired positioning, for example by screwing through a slot 129 in a tube and a thread in the other tube.
  • the sleeve 127 and the lower tube 124b can be locked after setting a desired relative position, for example by screwing or a screw 135.
  • the sleeve 127 at its lower end on the outer periphery of a polygon or other attack possibility, in FIG. 4 schematically indicated at 127b, to facilitate the attack to twist the sleeve 127 or to hold the sleeve when other parts, such as the lower tube 124b are to be rotated on.
  • the spring 130 is disposed between the spring plate 134 and the head end 126a of the plunger 126, wherein, as mentioned, the upper sleeve end 127a in the illustrated embodiment, the upper plunger bearing 128 for the head end 126a of the plunger during tensioning of the spring by the tensioning of the governor rope 122nd forms.
  • the spring 130 is tensioned and after resting the plunger 126 on the upper ram bearing 128, the voltage in the governor 122 can be increased as needed.
  • the upper plunger bearing or the lower stop for the plunger 126 can be adjusted in height, so that in different elevator systems different lever configurations of the catch rod 140, or lever movements, aspect ratios or forces can be set or taken into account.
  • the cable tension of the governor rope 122 can be adjusted by pivoting the lower deflecting roller 150. Additionally or alternatively, the cable tension and / or the bias of the spring 130 by moving the tubes 124a, 124b and the sleeve 127 relat.iv each other can be changed.
  • a rope tension of the governor rope 122 for example, by appropriate positioning of the sleeve 127 can be adjusted by a displacement of the lower tube 124b relative to the upper tube 124a, the spring tension of the spring 130 such that at normal catch, ie in the case of excessive speed of the car That is, the head 126a of the plunger 126 on the upper end 127a of the sleeve is left with sufficient force and does not lift off while the trigger mechanism 120 is displaced with respect to the car 110 as a whole.
  • the tension of the spring can be adjusted so that upon loss of tension or breakage or tearing of the governor rope 122 the head end 126a of the plunger of the upper sleeve end 127a is lifted by means of the stored spring force (bias) of the spring 130, and with the moving plunger, the catch rod 140 is actuated.
  • the trigger mechanism 120 is supported at the connection point to the car or the catch frame or the conveyor, that is, the bolt 111 in the slot 132, from.
  • the catch rod 140 is pivotally or rotatably mounted on the plunger 126 by means of the joint 140a, and on the car, and also has a third articulated connection for triggering the catching device.
  • a third articulated connection for triggering the catching device.
  • such a second joint on the car is designated 140b.
  • the third hinged connection is a special embodiment of the connection 142.
  • FIG. 5 Finally, the area of a lower beam of a car is shown, on which the trigger mechanism 120, as shown for example in the Figures 3 and 4 is shown attached. In addition to the triggering mechanism 120, cabin insulation devices 512 provided on the lower beam 510 can be seen. Roller guides 514 are provided below the sub-beam. A safety gear is in FIG. 5 represented and designated 516.

Abstract

The present invention relates to an apparatus for triggering an intercepting means on a lift car or a conveying arrangement of a lift installation, having a brakeable limiter cable (122) which is connected to the lift car or the conveying arrangement, it being possible for the intercepting means to be triggered by virtue of the limiter cable (122) being braked, characterized by a triggering mechanism (120) which is arranged between the limiter cable (122) and the lift car or the conveying arrangement, is connected to two ends (122a, 122b) of the limiter cable (122) and is mounted in a movable manner on the lift car or the conveying arrangement (110).

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zum Auslösen einer Fangvorrichtung an einem Fahrkorb oder einer Fördereinrichtung einer Aufzuganlage gemäß dem Oberbegriff des Patentanspruchs 1. Die Erfindung betrifft ferner ein entsprechendes Verfahren nach dem Oberbegriff des Patentanspruchs 8.The present invention relates to a device for triggering a safety gear on a car or a conveyor of an elevator system according to the preamble of patent claim 1. The invention further relates to a corresponding method according to the preamble of patent claim 8.

Bei einer Vielzahl von bewegten Körpern, wie beispielsweise Fördermitteln im Bereich der Automatisierungs- oder der Fördertechnik, oder beispielsweise bei Aufzügen oder dergleichen, ist das Bestimmen bzw. eine Kontrolle der Geschwindigkeit des bewegten Körpers, beim Aufzug insbesondere des Fahrkorbes, von entscheidender Bedeutung, um einen effizienten Arbeitsablauf sowie die Sicherheit von Personen oder Sachen zu gewährleisten.In a variety of moving bodies, such as conveyors in the field of automation or conveyor technology, or for example in elevators or the like, the determination or a control of the speed of the moving body, the elevator in particular the car, is of crucial importance to to ensure an efficient work process as well as the safety of persons or things.

Bei bewegten Körpern in Form von Aufzugsfahrkörben hat sich ein mechanisches Sicherungssystem bewährt, bei dem in Ergänzung zu den üblichen Tragseilen ein weiteres gespanntes Seil, im folgenden Begrenzerseil genannt, an den mitfahrenden Teilen, beispielsweise dem Fahrkorb befestigt ist, und über im Schacht angeordnete, in etwa ortsfeste Umlenkrollen geführt wird.In moving bodies in the form of elevator cars, a mechanical security system has proven to be in addition to the usual support cables another tensioned cable, hereinafter called Begrenzerseil attached to the moving parts, such as the car, and arranged in the shaft, in about stationary pulleys is performed.

Aus der GB 2 114 092 A ist ein Sicherheitsmechanismus für ein Aufzugsystem bekannt. Hierbei weist ein Aufzugsystem einen Geschwindigkeitsbegrenzer auf, welches ein Geschwindigkeitsbegrenzerrad und ein Führungsrad aufweist, wobei sich hierzwischen ein Begrenzerseil erstreckt, welches mit einem Betätigungsmechanismus für eine Sicherheitsvorrichtung eines Fahrkorb verbunden ist. Das Begrenzerseil ist mittels einer Feder vorgespannt. Dieser Geschwindigkeitsbegrenzermechanismus wirkt im Falle einer überhöhten Geschwindigkeit des Fahrkorbs zur Beaufschlagung der Sicherheitsvorrichtung.From the GB 2 114 092 A For example, a safety mechanism for an elevator system is known. Here, an elevator system includes a speed limiter having a speed limiter wheel and a guide wheel with a governor rope extending therebetween connected to an actuating mechanism for a safety device of a car. The governor rope is biased by a spring. This speed limiter mechanism acts to pressurize the safety device in the event of an excessive speed of the car.

Ein derartiges Sicherungssystem ist beispielsweise auch in der DE 299 12 544 U1 beschrieben. Diese Druckschrift beschreibt eine Vorrichtung zur Geschwindigkeitsbegrenzung bei Aufzugsanlagen mit einem Geschwindigkeitsbegrenzerrad, einem Begrenzerseil, einer Fangvorrichtung am Fahrkorb und einem Auslösemechanismus für die Fangvorrichtung. Der Auslösemechanismus ist hier als Fliehkraftbegrenzer ausgeführt. Mit einem derartigen Mechanismus kann bei einer vorbestimmten Übergeschwindigkeit des Fahrkorbes (beispielsweise von 20 % über zulässiger Maximalgeschwindigkeit) das Geschwindigkeitsbegrenzerrad (Umlenkrolle) durch die angebaute Fliehkrafteinrichtung in ihrer Drehung blockiert werden, wodurch das mit der Umlenkrolle angetriebene Begrenzerseil ebenfalls in seiner Bewegung gesperrt wird. Durch das stehende Begrenzerseil und den sich aber weiter bewegenden Fahrkorb bzw. Fahrkorbrahmen wird mit steigender Begrenzerseil-Zugkraft eine Fangbremse oder eine Fangvorrichtung ausgelöst, die den Fahrkorb abbremst oder zum Stehen bringt.Such a security system is, for example, in the DE 299 12 544 U1 described. This document describes a device for limiting the speed of elevator systems with a Geschwindigkeitsbegrenzerrad, a governor rope, a safety gear on the car and a trigger mechanism for the safety gear. The trigger mechanism is designed here as centrifugal force limiter. With such a mechanism, at a predetermined overspeed of the car (for example 20% above allowable maximum speed), the speed governor wheel (idler) can be blocked in rotation by the attached centrifugal device, thereby also blocking the governor-driven governor rope from moving. Due to the standing governor rope and the car or car frame, which continues to move, a catch brake or a safety gear is triggered with increasing governor traction, which brakes or stops the car.

Im Falle eines Spannungsabfalls des Begrenzerseils, insbesondere im Falle eines spannungslosen Begrenzerseils (beispielsweise aufgrund eines Seilrisses) kommt es zu Beeinträchtigungen eines derart ausgebildeten Sicherungssystems. In diesem Fall kann beispielsweise das Begrenzerseil in der Rille der Umlenkrolle bzw. des Geschwindigkeitsbegrenzerrades rutschen, wodurch ein Auslösen der Fangbremse wegen fehlender Begrenzerseil-Zugkraft nicht mehr gewährleistet werden kann.In the event of a voltage drop of the limiter rope, in particular in the case of a tension-free limiter rope (for example due to a rope tear), a safety system designed in this way is impaired. In this case, for example, the governor rope slip in the groove of the guide roller or the speed governor, whereby a triggering of the safety brake can not be guaranteed because of lack of governor traction.

Ebenso kann die Fangbremse beispielsweise bei einem seilangetriebenen Fliehkraftbegrenzer oder dergleichen nicht mehr ausgelöst werden, wenn das Begrenzerseil nicht mehr in sei ner bestimmungsgemäßen Lage oder gerissen oder gar nicht mehr vorhanden ist.Likewise, the safety brake, for example, in a rope-driven centrifugal force limiter or the like can not be triggered when the governor rope is no longer in ner intended position or cracked or no longer exists.

Derartige Zustände des Begrenzerseils werden üblicherweise durch sogenannte Schlaffseilauslösungen an einer der Umlenkrollen des Begrenzerseils elektrisch erkannt, und ein elektrischer Nothalt nachfolgend mittels der normalen Betriebsbremse eingeleitet. Die Fangvorrichtung ist unter derartigen Bedingungen jedoch wirkungslos, was beispielsweise im Brandfall oder bei unsachgemäßer Personenbefreiung zu weiteren Gefahren, bis hin zu einem Absturz des Fahrkorbs führen kann. Im Falle eines Brandes im Aufzugschacht kann es beispielsweise dazu kommen, dass zunächst die Begrenzerseile durchbrennen, ohne dass es zu einer Betätigung der Fangvorrichtung kommt, und anschließend die Tragseile durchbrennen. Dies kann dann zum Absturz der Fahrkörbe führen.Such states of the limiter rope are usually detected electrically by so-called slack rope releases on one of the deflection rollers of the limiter rope, and an electrical emergency stop is subsequently initiated by means of the normal service brake. However, the safety gear is ineffective under such conditions, which can lead to further dangers, for example, in case of fire or inappropriate personal liberation, to a crash of the car. In the event of a fire in the hoistway, it may happen, for example, that first the limiter ropes burn through, without there being any actuation of the safety gear, and then blow the suspension cables. This can then lead to the crash of the cars.

Mit der Erfindung wird zum Einen angestrebt, die Sicherheit einer Aufzuganlage zu verbessern.On the one hand, the aim of the invention is to improve the safety of an elevator installation.

Es wird ferner angestrebt, bei Systemen, die eine Geschwindigkeitsüberwachung eines Fahrkorbs oder einer Fördereinrichtung mittels einer Seilübertragung zu einer Fangvorrichtung realisieren, Fehlfunktionen des Systems aufgrund einer zu geringen Seilspannung oder eines fehlenden Seiles in möglichst einfacher und unaufwendiger Weise zu erkennen und dann trotz fehlender Seilkraft die Fangvorrichtung auslösen zu können.It is also desirable in systems that realize a speed monitoring of a car or a conveyor by means of a cable transmission to a safety gear to detect malfunctions of the system due to too low rope tension or missing rope in a simple and inexpensive way and then despite the lack of cable force the To trigger safety gear.

Die vorliegende Erfindung stellt eine Vorrichtung mit den Merkmalen des Patentanspruchs 1 sowie ein Verfahren mit den Merkmalen des Patentanspruchs 9 bereit.The present invention provides a device having the features of claim 1 and a method having the features of claim 9.

Die erfindungsgemäße Lösung zeichnet sich dadurch aus, dass mit der vorgeschlagenen Vorrichtung bzw. dem entsprechenden Verfahren zum Auslösen einer Fangvorrichtung an einem Fahrkorb oder einer Fördereinrichtung einer Aufzuganlage sowohl eine überhöhte Geschwindigkeit des Fahrkorbs bzw. der Fördereinrichtung als auch ein Abfall bzw. ein Wegfall der Seilspannung des Begrenzerseils in einfacher Weise festgestellt werden können, und in beiden Fällen eine vorgesehene Fangvorrichtung in einfacher und zuverlässiger Weise unmittelbar ausgelöst werden kann. Insbesondere ist mit der erfindungsgemäßen Vorrichtung eine Situation vermeidbar, bei der es zunächst zu einem Abfall bzw. Wegfall der Begrenzerseilspannung kommt, und aus diesem Grunde im Anschluß hieran eine Betätigung einer Fangvorrichtung nicht mehr möglich ist.The solution according to the invention is characterized in that with the proposed device or the corresponding method for triggering a safety gear on a car or a conveyor of an elevator system both an excessive speed of the car or the conveyor as well as a drop or a loss of rope tension the Begrenzerseils can be determined in a simple manner, and in both cases a proposed safety gear can be triggered directly in a simple and reliable manner. In particular, with the device according to the invention, a situation can be avoided in which there is initially a drop or elimination of the Begrenzerseilspannung, and for this reason in connection thereto an operation of a safety gear is no longer possible.

Hierbei sind die zwei Enden des Begrenzerseils an zueinander beweglich gelagerten Bauteilen des Auslösemechanismus befestigt. Mit dieser Ausbildung sind in einfacher Weise eine Normalbetriebsposition, bei der eine ausreichende Seilspannung des Begrenzerseils vorliegt, sowie eine Auslöse-Betriebsposition, bei dem die Seilspannung des Begrenzerseils unter einen bestimmten Spannungswert abfällt, realisierbar. Hierbei weisen die beiden Bauteile des Auslösemechanismus in der Normalbetriebsposition einen ersten Abstand, und in der Auslöse-Betriebsposition einen zweiten, vom ersten Abstand unterschiedlichen Abstand zueinander auf. Mittels der somit auftretenden Relativbewegung zwischen den beiden Bauteilen des Auslösemechanismus und der damit einhergehenden Längenänderung des Auslösemechanismus kann in einfacher Weise ein am Fahrkorb oder an der Fördereinrichtung der Aufzuganlage angebrachter Fangmechanismus ausgelöst werden.Here, the two ends of the Begrenzerseils are attached to each other movably mounted components of the trigger mechanism. With this design, a normal operating position, in which there is sufficient cable tension of the governor rope, and a release operating position, in which the cable tension of the governor rope falls below a certain voltage value, can be realized in a simple manner. Here, the two components of the trigger mechanism in the normal operating position at a first distance, and in the release operating position, a second, different from the first distance to each other. By means of the thus occurring relative movement between the two components of the trigger mechanism and the concomitant change in length of the trigger mechanism can in a simple One triggered on the car or on the conveyor of the elevator system catching mechanism are triggered.

Die erfindungsgemäße Vorrichtung zeichnet sich dadurch aus, dass sie die Fangvorrichtung sowohl mit Hilfe der Begrenzerseil-Zugkraft, als auch ohne die Hilfe der Begrenzerseil-Zugkraft auslösen kann. Mit dieser Ausgestaltung ist ein sicheres Abbremsen eines Fahrkorbs bzw. einer Fördereinrichtung einer Vielzahl von möglichen Situationen in einfacher Weise bewerkstelligbar.The device according to the invention is characterized in that it can trigger the safety gear both by means of the governor rope traction, and without the help of the governor rope traction. With this configuration, a safe deceleration of a car or a conveyor of a variety of possible situations in a simple manner can be accomplished.

Gemäß der Erfindung wird im Fall einer unzulässigen Längung des Begrenzerseils oder eines unzulässigen Abfalls der Seilspannung des Begrenzerseils oder bei einem Bruch des Begrenzerseils der Auslösemechanismus aus der Normalbetriebsposition in die Auslöseposition gebracht, indem eines der zueinander beweglichen Bauteile des Auslösemechanismus aus einer Betriebsposition relativ zu dem zweiten der beweglichen Bauteile mittels einer permanent gespeicherten Energie in eine Auslöseposition relativ zu dem zweiten der beweglichen Bauteile verschoben wird.According to the invention, in the case of an inadmissible elongation of the governor rope or an inadmissible fall of the cable tension of the governor rope or in the event of breakage of the governor rope, the release mechanism is brought from the normal operating position to the release position by moving one of the mutually movable components of the release mechanism from an operating position relative to the second the movable components are displaced by means of a permanently stored energy into a release position relative to the second of the movable components.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.

Es erweist sich hierbei als besonders vorteilhaft zur Speicherung der Energie, wenn der Auslösemechanismus eine vorgespannte Feder aufweist. Diese Feder kann, je nach Ausführung, entweder als Zug- oder Druckfeder ausgebildet sein. Hierbei wird, in der Betriebsposition, die durch die Feder bereitgestellte Kraft durch die Seilspannung des Begrenzerseils kompensiert. Kommt es zu einem Spannungsabfall oder einem Bruch des Begrenzerseils, führt dies zu einer Änderung der Länge der Feder, wodurch ein mit der Feder in Wirkverbindung stehender Fangmechanismus am Fahrkorb oder der Fördereinrichtung der Aufzuganlage auslösbar ist.It proves to be particularly advantageous for storing the energy when the trigger mechanism has a preloaded spring. This spring can, depending on the design, be designed either as a tension or compression spring. Here, in the operating position, the force provided by the spring is compensated by the rope tension of the governor rope. If there is a drop in voltage or a break of the limiter rope, leads This results in a change in the length of the spring, whereby a catch mechanism operatively connected to the spring on the car or the conveyor of the elevator system can be triggered.

Die durch die Feder gespeicherte Energie entspricht über ihrem gesamten Hub einer Kraft, die wenigstens der Gewichtskraft der maximalen einfachen Länge des Begrenzerseils von oben bis unten zuzüglich der Auslösekraft der Fangvorrichtung entspricht.The energy stored by the spring over its entire stroke corresponds to a force which corresponds at least to the weight of the maximum single length of the governor rope from top to bottom plus the release force of the safety gear.

Zweckmäßigerweise ist ein Mechanismus zur Ermöglichung einer Relativbewegung des Auslösemechanismus bezüglich des Fahrkorbes derart vorgesehen, dass der Auslösemechanismus im Falle einer Geschwindigkeit des Fahrkorbes oder der Fördereinrichtung, die eine voreinstellbare Maximalgeschwindigkeit übersteigt, von der definierten Normal-Betriebsposition in eine weitere Auslöseposition bringbar ist. Dieser Mechanismus weist zweckmäßigerweise ein an dem Auslösemechanismus ausgebildetes Langloch auf, in welches ein an dem Fahrkorb oder der Fördereinrichtung angebrachter Bolzen eingreift. Kommt es in Folge eines Blockierens des Begrenzerseils aufgrund einer überhöhten Geschwindigkeit des Fahrkorbes zu einer Verlangsamung bzw. einem Stillstand des Begrenzerseils, kann der Fahrkorb, begrenzt durch die Länge des Langlochs, eine Relativbewegung zu dem Begrenzerseil ausführen. Auch mittels dieser Relativbewegung kann die an dem Fahrkorb oder der Fördereinrichtung vorgesehene Fangvorrichtung in einfacher und zuverlässiger Weise ausgelöst werden.Conveniently, a mechanism for enabling a relative movement of the triggering mechanism with respect to the car is provided such that the triggering mechanism can be moved from the defined normal operating position to a further triggering position in the case of a speed of the car or of the conveyor which exceeds a presettable maximum speed. This mechanism expediently has a slot formed on the trigger mechanism into which a bolt attached to the elevator car or conveyor engages. If there is a slowing down or a stoppage of the governor rope due to an excessive speed of the elevator car due to an obstruction of the governor rope, the car, limited by the length of the oblong hole, can make a relative movement to the governor cable. Also by means of this relative movement provided on the car or the conveyor safety gear can be triggered in a simple and reliable manner.

Zweckmäßigerweise ist der Auslösemechanismus mit einem an dem Fahrkorb beweglich gelagerten Fanggestänge ausgebildet. Ein derartiges Fanggestänge realisiert die Wirkverbindung zwischen dem Auslösemechanismus und der am Fahrkorb oder der Fördereinrichtung vorgesehenen Fangvorrichtung, so dass bei einer Bewegung der beiden Bauteile des Auslösemechanismus relativ zueinander oder des Auslösemechanismus insgesamt relativ zu dem Fahrkorb oder der Fördereinrichtung ein Auslösen der Fangvorrichtung gewährleistet werden kann.Conveniently, the trigger mechanism is formed with a catch rod movably mounted on the car. Such a catch rod realizes the operative connection between the trigger mechanism and the safety device provided on the car or the conveyor, so that when the two components of the trigger mechanism relative to each other or the trigger mechanism in total relative to the car or the conveyor triggering the safety gear can be ensured.

Gemäß einer besonders bevorzugten Ausführungsform ist das erste Bauteil des Auslösemechanismus als Gehäuse, und das zweite Bauteil als in dem Gehäuse verschiebbarer Stößel ausgebildet. Zweckmäßigerweise ist ferner das Begrenzerseil um zwei Umlenkrollen geführt, wobei das eine Ende des Begrenzerseils an dem Gehäuse befestigt ist und das andere Ende des Begrenzerseils an dem in dem Gehäuse verschiebbar gelagerten Stößel angebracht ist. Das Gehäuse weist ferner zweckmäßigerweise auf seiner Außenseite eine Lasche auf, die mit dem Langloch ausgebildet ist, in welchem der am Fahrkorb angebrachte Bolzen verschiebbar ist. An dem Stößel ist ferner das Fanggestänge anbringbar, über welches die Auslösung der Fangvorrichtung bewerkstelligbar ist. Dabei bewirkt der Stößel bei Normalbetrieb mittels einer Federbeaufschlagung, insbesondere mittels einer Zugfeder, die Beibehaltung der Normal-Betriebsposition des Auslösemechanismus in der Art, dass das Begrenzerseil sich synchron, d. h. mit gleicher Geschwindigkeit zu dem Fahrkorb oder der Fördereinrichtung bewegt. Hierbei erfolgt erst im Falle einer überhöhten Geschwindigkeit und einer hierdurch verursachten Abbremsung des Begrenzerseils bei vorhandener Begrenzerseilspannung eine Relativbewegung des am Fahrkorb ortsfest befestigten Bolzens in dem Langloch. Andererseits kommt es im Falle eines Abfalls der Seilspannung des Begrenzerseils unter einen bestimmten Seilspannungswert zu einer durch die Federbeaufschlagung verursachten Relativbewegung des Stößels innerhalb des Gehäuses, wodurch ebenfalls eine Relativbewegung zwischen dem Stößel und dem Fanggestänge bewirkt wird, das zur Auslösung der Fangvorrichtung führt.According to a particularly preferred embodiment, the first component of the trigger mechanism is designed as a housing, and the second component is designed as a slide displaceable in the housing. Conveniently, the governor rope is further guided around two pulleys, wherein the one end of the governor rope is attached to the housing and the other end of the governor rope is attached to the plunger slidably mounted in the housing. The housing further expediently has on its outer side a tab which is formed with the slot in which the bolt mounted on the car is displaceable. On the plunger, the catch rod is also attachable, via which the triggering of the safety gear is accomplished. In this case, the plunger causes during normal operation by means of a spring action, in particular by means of a tension spring, maintaining the normal operating position of the trigger mechanism in such a way that the governor moves synchronously, ie at the same speed to the car or the conveyor. In this case, only in the event of an excessive speed and thus caused braking of the governor rope in existing Begrenzerseilspannung a relative movement of the car stationary fixed bolt in the slot. On the other hand, in the case of a drop, the Rope tension of the governor rope below a certain cable tension value to a caused by the spring loading relative movement of the plunger within the housing, whereby also a relative movement between the plunger and the catch rod is effected, which leads to the triggering of the safety gear.

Zweckmäßigerweise weist das Gehäuse zwei gegeneinander verschiebbare und arretierbare Komponenten, insbesondere Rohre auf, so dass die Gesamtlänge des Gehäuses einstellbar ist. Mit dieser Maßnahme ist, zusätzlich oder alternativ zu einer Einstellung der Seilspannung des Begrenzerseils mittels Beaufschlagung einer der Umlenkrollen, eine weitere Justiermöglichkeit für die Seilspannung des Begrenzerseils zur Verfügung gestellt.Conveniently, the housing has two mutually displaceable and lockable components, in particular tubes, so that the overall length of the housing is adjustable. With this measure, in addition to or as an alternative to setting the cable tension of the governor rope by acting upon one of the deflecting rollers, a further adjustment possibility for the cable tension of the governor rope is provided.

Zweckmäßigerweise ist der Stößel in einer Hülse innerhalb des Gehäuses geführt, wobei ein Ende der Hülse als Anschlag für den Kopfbereich des Stößels dient. Auch diese Hülse ist zweckmäßigerweise verschiebbar und arretierbar bezüglich des Gehäuses ausgebildet, so dass auch durch entsprechende Verschiebung der Hülse relativ zu dem Gehäuse eine Anpassung der Federspannung und/oder der Seilspannung des Begrenzerseils erzielbar ist.Conveniently, the plunger is guided in a sleeve within the housing, wherein one end of the sleeve serves as a stop for the head portion of the plunger. This sleeve is expediently designed to be displaceable and lockable with respect to the housing, so that an adaptation of the spring tension and / or the cable tension of the governor rope can be achieved by corresponding displacement of the sleeve relative to the housing.

Die Verschiebbarkeit der Gehäusekomponenten zueinander bzw. der Hülse relativ zu den Komponenten des Gehäuses ist zweckmäßigerweise mittels entsprechender Innen- bzw. Außengewinde realisiert.The displaceability of the housing components relative to one another or of the sleeve relative to the components of the housing is expediently realized by means of corresponding internal or external threads.

Bevorzugte Ausgestaltungen der Erfindung werden nun unter Bezugnahme auf die beigefügte Zeichnung näher erläutert. In dieser zeigt bzw. zeigen

Figur 1
eine schematische (nicht maßstabsgetreue) seitliche Schnittansicht einer bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung, die mit einem Fahrkorb zusammenwirkt, beim Normalbetrieb einer Aufzuganlage,
Figuren 2a) - 2c)
in einer gegenüber der Figur 1 weiter vereinfachten seitlichen Schnittansicht verschiedene Betriebszustände der erfindungsgemäßen Vorrichtung,
Figur 3
eine perspektivische Ansicht einer bevorzugten Ausführungsform des erfindungsgemäß eingesetzten Auslösemechanismus,
Figur 4
eine seitliche Schnittansicht des Auslösemechanismus gemäß der Figur 3, und
Figur 5
eine perspektivische Ansicht eines Unterholms eines Fahrkorbs einer Aufzuganlage, an dem.der erfindungsgemäße Auslösemechanismus angebracht ist.
Preferred embodiments of the invention will now be explained in more detail with reference to the accompanying drawings. In this shows or show
FIG. 1
3 is a schematic (not to scale) side sectional view of a preferred embodiment of the device according to the invention, which cooperates with a car, during normal operation of an elevator system,
FIGS. 2a) - 2c)
in one opposite the FIG. 1 further simplified lateral sectional view of various operating states of the device according to the invention,
FIG. 3
a perspective view of a preferred embodiment of the invention used trigger mechanism,
FIG. 4
a side sectional view of the trigger mechanism according to the FIG. 3 , and
FIG. 5
a perspective view of a sub-spar of a car of an elevator installation, is mounted.to the trigger mechanism according to the invention.

In Figur 1 ist eine Aufzuganlage, welche eine bevorzugte Ausführungsform der erfindungsgemäßen Vorrichtung umfasst, insgesamt mit 100 bezeichnet. Ein Fahrkorb ist schematisch dargestellt und mit 110 bezeichnet, an dem eine Fangvorrichtung 146 angeordnet ist.In FIG. 1 is an elevator installation, which comprises a preferred embodiment of the device according to the invention, designated overall by 100. A car is shown schematically and designated 110, on which a safety gear 146 is arranged.

Die erfindungsgemäße Vorrichtung weist einen Auslösemechanismus 120 und ein Begrenzerseil 122 auf. Das Begrenzerseil 122 list um zwei Umlenkrollen geführt, nämlich um eine im unteren Schachtbereich vorgesehene Umlenkrolle 150, und eine im oberen Schachtbereich gelagerte Umlenkrolle 152.The device according to the invention has a trigger mechanism 120 and a limiter cable 122. The limiter rope 122 is guided around two deflection rollers, namely around a deflection roller provided in the lower shaft area 150, and a guide shaft 152 mounted in the upper shaft area.

Ein erstes (oberes) Ende 122a des Begrenzerseils 122 ist mit einem oberen Anschluß 120a des Auslösemechanismus, und ein zweites (unteres) Ende 122b des Begrenzerseils 122 mit einem unteren Anschluß 120b des Auslösemechanismus 120 verbunden. Die Anschlüsse 120a und 120b sind zweckmäßigerweise als Seilschlösser ausgebildet. Der obere Anschluß 120a ist am oberen Ende eines Gehäuses 124 des Auslösemechanismuses 120 ausgebildet. Das untere Begrenzerseilende 122b ist unten an einem in dem Gehäuse 124 vorgesehenen verschiebbaren Stößel 126 angebracht.A first (upper) end 122a of the limiter cable 122 is connected to an upper terminal 120a of the triggering mechanism, and a second (lower) end 122b of the limiter cable 122 is connected to a lower terminal 120b of the triggering mechanism 120. The connections 120a and 120b are expediently designed as cable locks. The upper terminal 120 a is formed at the upper end of a housing 124 of the triggering mechanism 120. The lower limiter cable end 122b is attached at the bottom to a slidable plunger 126 provided in the housing 124.

Die Seilspannung des Begrenzerseils 122 ist in an sich bekannter Weise mittels Positionierung der Umlenkrollen 150, 152 einstellbar z.B. mit Hilfe eines Spanngewichtes 154. Eine zusätzliche oder alternative Möglichkeit einer Einstellung der Seilspannung wird weiter unten unter Bezugnahme auf Figur 4 erläutert. Die Seilspannung verursacht eine mittels eines Pfeils G veranschaulichte, nach unten gerichtete Kraft, die an dem Stößel 126 angreift.The cable tension of the governor rope 122 is adjustable in a manner known per se by means of positioning the deflecting rollers 150, 152, for example by means of a tension weight 154. An additional or alternative possibility of adjusting the cable tension will be described below with reference to FIG FIG. 4 explained. The cable tension causes a downwardly directed force illustrated by an arrow G, which acts on the plunger 126.

Der Stößel 126 wird ferner mittels einer Druckfeder 130 entgegen der Richtung der Seilspannung beaufschlagt (mittels Pfeil F veranschaulicht), und liegt in dem in Figur 1 dargestellten normalen Betriebszustand mit seinem Kopfbereich 126a auf einer oberen Stößellagerung (bzw. Anschlag) 128 auf. In der oberen Stößellagerung 128 ist eine Ausnehmung ausgebildet, durch welche die Feder 130 am Kopfende 126a des Stößels 126 angreift. Demzufolge ist bei dem in Figur 1 dargestellten normalen Betriebszustand die durch die Seilspannung aufgebrachte Begrenzerseil-Zugkraft größer als eine durch die Feder 130 bewirkte Kraft.The plunger 126 is further acted upon by a compression spring 130 opposite to the direction of the cable tension (illustrated by arrow F), and lies in the in FIG. 1 illustrated normal operating state with its head portion 126a on an upper ram storage (or stop) 128 on. In the upper ram bearing 128, a recess is formed, through which the spring 130 engages the head end 126a of the plunger 126. Accordingly, in the in FIG. 1 illustrated normal operating state the by the rope tension applied limiter rope tensile force greater than a force caused by the spring 130.

Die Seilspannung des Begrenzerseils 122, und damit die Vorspannung zwischen dem oberen und dem unteren Begrenzerseilanschluß 122a, 122b muss so groß sein, dass im normalen Fangfall, d.h. bei zu hoher Geschwindigkeit des Fahrkorbes bei funktionierendem bzw. intaktem Begrenzerseil 122 und darauffolgendem Abbremsen des Begrenzerseils durch einen Geschwindigkeitsbegrenzer die Fangvorrichtung 146 sowohl bei Fang nach unten als auch bei Fang nach oben mit Hilfe der Begrenzerseil-Zugkraft ausgelöst wird.The cable tension of the governor rope 122, and thus the preload between the upper and lower governor cable connections 122a, 122b, must be so great that in the normal event of a fall, i. at too high speed of the car with a functioning or intact limiter rope 122 and subsequent braking of the governor rope by a speed limiter, the safety gear 146 is triggered both when catching down and when catching up with the help of Begrenzerseil-pulling force.

Ferner muss die Seilspannung so groß sein, dass der Stößel 126 fest auf die Oberseite der oberen Stößellagerung 128 gezogen wird, und der Stößel bzw. sein Kopfbereich 126a beim normalen Fahrbetrieb nicht durch die Feder 130 und/oder Fahrkorbbeschleunigungen bzw. -verzögerungen angehoben wird, d.h. die in der Darstellung der Figur 1 durch die Druckfeder ausgeübte Kraft auf den Stößel nach oben (Pfeil F) muß durch die Seilspannung (Pfeil G) mehr als kompensiert werden.Furthermore, the cable tension must be such that the plunger 126 is pulled firmly onto the top of the upper plunger bearing 128, and the plunger or its head portion 126a is not raised by the spring 130 and / or car accelerations during normal driving operation. ie in the representation of FIG. 1 force exerted by the compression spring on the plunger upwards (arrow F) must be more than compensated by the cable tension (arrow G).

Der Stößel 126 ist längsverschiebbar, d.h. in Verfahrrichtung des Auslösemechanismus 120 bzw. des Fahrkorbs, in dem Gehäuse 124 verschiebbar gelagert.The plunger 126 is longitudinally displaceable, i. in the direction of travel of the trigger mechanism 120 and the car, in the housing 124 slidably mounted.

An der Außenseite des Gehäuses 124 ist eine Lasche 131 mit einem darin vorgesehenen Langloch 132, dessen Erstreckungsrichtung parallel zur Verfahrrichtung des Fahrkorbes 110 verläuft, ausgebildet. In dieses Langloch 132 greift ein am Fahrkorb 110 befestigter Bolzen 111 ein. Entlang der Länge des Langlochs 132 sind somit, wie unten weiter erläutert wird, Fahrkorb 110 und Gehäuse 124 zueinander verschiebbar miteinander verbunden.On the outside of the housing 124 is a tab 131 having a slot 132 provided therein, whose extension direction is parallel to the direction of travel of the car 110, formed. In this slot 132 engages a fastened to the car 110 bolt 111 a. Along the length of the slot 132 are thus as below is explained further, car 110 and housing 124 to each other slidably connected.

Vom Kopfende 126a des Stößels 126 erstreckt sich ein Fanggestänge 140 durch eine in Figur 1 nicht dargestellte, jedoch in Figur 3 erkennbare Öffnung 144 in dem Gehäuse 124 in Richtung des Fahrkorbes 110. Das Fanggestänge 140 ist an seinem fahrkorbseitigen Ende mittels einer am Fahrkorb vorgesehenen Zugfeder 112 vorgespannt. Das Fanggestänge 140 ist gehäuseseitig und fahrkorbseitig gelagert, insbesondere verschwenkbar gelagert, und ferner fahrkorbseitig mit der in Figur 1 schematisch dargestellten Fangvorrichtung 146 verbunden, die bei einer Schwenkbewegung des Fanggestänges (wie im folgenden ausführlich erläutert wird) auslösbar ist. Die Verbindung zwischen Fanggestänge 140 und der Fangvorrichtung 146 ist in den Figuren 1 und 2 schematisch mit 142 bezeichnet.From the head end 126a of the plunger 126, a catch rod 140 extends through an in FIG. 1 not shown, but in FIG. 3 recognizable opening 144 in the housing 124 in the direction of the elevator car 110. The catch rod 140 is biased at its car-side end by means of a tension spring 112 provided on the car. The catch rod 140 is the housing side and car side mounted, in particular pivotally mounted, and also car side with in FIG. 1 schematically illustrated safety gear 146, which is triggered during a pivoting movement of the catch rod (as will be explained in detail below). The connection between catch rod 140 and the catch 146 is in the FIGS. 1 and 2 indicated schematically at 142.

Zweckmäßigerweise ist die obere Umlenkrolle 152 als Geschwindigkeitsbegrenzerrad ausgebildet. Dadurch blockiert bei Überschreiten einer zulässigen Höchstgeschwindigkeit des Begrenzerseiles 122 und damit des sich im normalen Betriebszustand mit gleicher Geschwindigkeit bewegenden Fahrkorbes 110 die obere Umlenkrolle 152 und bremst das Begrenzerseil ab, wodurch es zu einer Relativbewegung zwischen Begrenzerseil 122 und damit Auslösevorrichtung 120 und Fahrkorb 110 kommt.The upper deflection roller 152 is expediently designed as a speed limiting wheel. As a result, blocks the upper guide pulley 152 and decelerates the governor rope when exceeding a maximum permissible speed of the Begrenzerseiles 122 and thus moving in the same operating state at the same speed car 110 and thereby causing a relative movement between governor 122 and thus triggering device 120 and car 110.

Die untere Umlenkrolle 150 ist zweckmäßigerweise als Spanrolle ausgebildet, welche verschieb- oder verschwenkbar gelagert und mit einem Spanngewicht 154 verbunden ist, so dass das Begrenzerseil 122 stets eine gewisse Mindestspannung beibehält. Diese Mindestspannung gewährleistet einen sichern Lauf des Begrenzerseils 122 in den jeweiligen (nicht dargestellten) Radrillen der Umlenkrollen 150, 152 und damit ein zuverlässiges Auslösen der Fangvorrichtung im Falle eines Blockierens der als Geschwindigkeitsbegrenzerrad ausgebildeten Umlenkrolle 152.The lower guide roller 150 is expediently designed as a chip roll, which is mounted displaceably or pivotably and connected to a tensioning weight 154, so that the governor rope 122 always maintains a certain minimum stress. This minimum voltage ensures a safe running of the governor rope 122 in the respective (not shown) wheel grooves of the guide rollers 150, 152 and thus a reliable triggering of the safety gear in the case of blocking the trained as Geschwindigkeitsbegrenzerrad deflection roller 152th

Die unterschiedlichen Betriebszustände bzw. Auslösezustände der erfindungsgemäßen Vorrichtung werden nun anhand der Figuren 2a) bis 2c) weiter erläutert.The different operating states or tripping states of the device according to the invention will now be described with reference to FIG FIGS. 2a) to 2c ) explained further.

In Figur 2a) ist, in weiter vereinfachter Darstellung, wiederum der normale Betriebszustand der erfindungsgemäßen Vorrichtung dargestellt. Wie bereits unter Bezugnahme auf Figur 1 erläutert, ist die Seilspannung des Begrenzerseils 122 ausreichend groß, so dass das Kopfende 126a des Stößels 126 gegen die obere Stößellagerung 128 gezogen wird.In FIG. 2a ) is, in a further simplified representation, again the normal operating state of the device according to the invention shown. As already with reference to FIG. 1 illustrated, the cable tension of the governor rope 122 is sufficiently large, so that the head end 126a of the plunger 126 is pulled against the upper plunger bearing 128.

Die Fahrgeschwindigkeit des Fahrkorbes 110 und des mit dem Fahrkorb 110 in Wirkverbindung stehenden Begrenzerseils 122 befindet sich im erlaubten Bereich, d.h. es kommt nicht zu einer Blockierung bzw. Abbremsung der Umlenkrolle 152.The travel speed of the elevator car 110 and the governor cable 122 operatively connected to the car 110 is within the allowable range, i. there is no blockage or deceleration of the deflection roller 152.

In diesem Zustand wird, wie erwähnt, der Stößel 126 gegen die obere Stößellagerung 128 gezogen, und der am Fahrkorb 110 fest angebrachte Bolzen 111 befindet sich an dem oberen Ende des Langlochs 132.In this state, as mentioned, the plunger 126 is pulled against the upper plunger bearing 128, and the fixed to the car 110 bolt 111 is located at the upper end of the slot 132nd

Das Fanggestänge 140 befindet sich in der neutralen Position, d.h. es kommt nicht zu einer Auslösung der über die Verbindung 142 mit dem Fanggestänge 140 verbundenen Fangvorrichtung 146.The catch rod 140 is in the neutral position, ie there is no triggering of the connected via the connection 142 with the catch rod 140 safety gear 146th

In Figur 2b) ist nun der Zustand dargestellt, in dem das Begrenzerseil 122 spannungslos ist. Dieser Zustand kann beispielsweise aufgrund eines Seilrisses eintreten. Ein Seilriss ist in Figur 2b) schematisch an der Stelle des Pfeiles S angedeutet. Analoge Betrachtungen ergeben sich auch für den Fall, dass die Seilspannung des Begrenzerseils 122 unter einen bestimmten Mindestwert fällt.In FIG. 2b ) shows the state in which the governor rope 122 is de-energized. This condition may occur, for example, due to a rope break. A rope break is in FIG. 2b ) indicated schematically at the point of the arrow S. Analogous considerations also arise in the event that the cable tension of the governor rope 122 falls below a certain minimum value.

Im Falle der Spannungslosigkeit des Begrenzerseils 122 bewirkt die Druckfeder 130, dass sich innerhalb des Gehäuses 124 der Stößel 126 nach oben bewegt und damit auch den Kopfbereich 126a des Stößels von der oberen Stößellagerung 128 entfernt. Dies liegt darin begründet, dass auf den Stößel nur noch die nach oben gerichtete, durch die Feder 130 verursachte Kraft wirkt (Pfeil F in Figur 1). Dies bedeutet, dass das mit dem Stößel 126 bzw. dem Kopfbereich 126a des Stößels verbundene Fanggestänge 140 nach oben gedrückt wird, so dass es über die Verbindung 142 zu einer Betätigung der Fangvorrichtung 146 kommt. Hierbei stütz sich das die Abstützung der Feder übernehmende Gehäuse nach unten hin mit der Oberkante des Langloches 132 auf dem Bolzen 111 ab.In the case of tensionlessness of the limiter cable 122, the compression spring 130 causes the plunger 126 to move upwardly within the housing 124 and thus also to remove the head region 126a of the plunger from the upper pushrod support 128. This is due to the fact that only the upwardly directed force caused by the spring 130 acts on the plunger (arrow F in FIG FIG. 1 ). This means that the catch rod 140 connected to the plunger 126 or the head region 126a of the plunger is pushed upwards so that an actuation of the catching device 146 occurs via the connection 142. In this case, the housing which takes over the support of the spring supports downward with the upper edge of the elongated hole 132 on the bolt 111.

Hierdurch ist, im Gegensatz zu herkömmlichen Vorrichtungen, auch bei spannunglosem Begrenzerseil 122 eine sichere Betätigung der Fangvorrichtung 146 gewährleistet.In this way, in contrast to conventional devices, even with voltage-free limiter 122 ensures a safe operation of the safety gear 146.

Ein dritter Betriebszustand, der dem traditionellen Betriebszustand einer Geschwindigkeitsbegrenzervorrichtung entspricht, ist in Figur 2c) dargestellt. Hier sei davon ausgegangen, dass der Fahrkorb 110 eine bestimmte Höchstgeschwindigkeit überschritten hat.A third operating state, which corresponds to the traditional operating state of a speed limiter device, is in Figure 2c ). Here it is assumed that the car 110 has exceeded a certain maximum speed.

Aufgrund der Wirkverbindung des Fahrkorbes 110 mit dem Begrenzerseil 122 kommt es zu einer entsprechenden Drehgeschwindigkeit der oberen Umlenkrolle 152, welche, wie bereits erwähnt, in an sich bekannter Weise mit einer Blockiereinrichtung (schematisch dargestellt und mit 153 bezeichnet) ausgebildet ist. Eine derartige Blockiereinrichtung 153 kann beispielsweise als Fliehkrafteinrichtung ausgebildet sein. Durch das Blockieren der Umlenkrolle 152 kommt es zu einem Abbremsen bzw. Stillstand des Begrenzerseiles 122 während der Fahrkorb 110 weiterfährt, was zu einer Relativbewegung zwischen Begrenzerseil 122 und damit Auslösevorrichtung 120 und Fahrkorb 110 führt. Es sei angemerkt, dass die Seilspannung sowie die durch die Feder 130 ausgeübte Kraft auf den Stößel 126 gegenüber dem in Figur 2a dargestellten normalen Betriebszustand im wesentlichen unverändert bleiben.Due to the operative connection of the elevator car 110 with the governor rope 122, a corresponding rotational speed of the upper deflecting roller 152, which, as already mentioned, is formed in a manner known per se with a blocking device (illustrated schematically and designated by 153). Such a blocking device 153 may be formed, for example, as a centrifugal force. As a result of the blocking of the deflection roller 152, the limiter cable 122 is decelerated or stopped while the car 110 continues, which leads to a relative movement between the limiter cable 122 and thus the triggering device 120 and the car 110. It should be noted that the cable tension and the force exerted by the spring 130 on the plunger 126 relative to the in FIG. 2a shown normal operating state remain essentially unchanged.

Diese. Relativbewegung zwischen Auslösevorrichtung 120 und Fahrkorb 110 wird über das Fanggestänge 140 über die Verbindung 142 auf die Fangvorrichtung 146 übertragen und löst die Fangvorrichtung aus.These. Relative movement between the triggering device 120 and the car 110 is transmitted via the catch rod 140 via the connection 142 to the safety gear 146 and triggers the safety gear.

Eine bevorzugte Ausführungsform des Auslösemechanismus 120 wird nun anhand der Figuren 3 und 4 im einzelnen erläutert.A preferred embodiment of the triggering mechanism 120 will now be described with reference to FIGS Figures 3 and 4 explained in detail.

Figur 3 zeigt zunächst eine perspektivische Ansicht einer bevorzugten Ausführungsform des erfindungsgemäßen Auslösemechanismus 120. In dieser Figur erkennt man das Gehäuse 124, die Seilanschlüsse 120a, 120b, das untere Ende des Stößels 126, die Lasche 131 sowie das in die Lasche eingebrachte Langloch 132. Ferner erkennt man das aus dem Gehäuse 124 vorragende Fanggestänge 140 sowie die Öffnung 144. FIG. 3 1 shows the housing 124, the cable connections 120a, 120b, the lower end of the plunger 126, the tab 131 and the elongated hole 132 introduced into the tab. Furthermore, one recognizes that from the Housing 124 projecting catch rod 140 and the opening 144th

Wie ferner in Figur 3 zu erkennen, weist das Gehäuse 124 ein oberes bzw. äußeres Gehäuseteil 124a, und ein unteres bzw. inneres Gehäuseteil 124b auf. Die Gehäuseteile 124a und 124b können z.B. als Rohre ausgebildet sein.As further in FIG. 3 To recognize, the housing 124 has an upper or outer housing part 124a, and a lower or inner housing part 124b. The housing parts 124a and 124b may be formed, for example, as tubes.

Die genannten Komponenten sind auch in Figur 4, in der eine Schnittansicht des Auslösemechanismus gemäß Figur 3 dargestellt ist, zu erkennen.The components mentioned are also in FIG. 4 in which a sectional view of the release mechanism according to FIG. 3 is shown to recognize.

Die Rohre 124a, 124b sind im Überdeckungsbereich 125 beispielsweise mittels Ausbildung entsprechender Gewindevorrichtungen, gegeneinander verschiebbar und miteinander arretierbar. Die Gesamtlänge des Gehäuses 124 ist somit durch entsprechende Verschiebung der Rohre 124a, 124b veränderbar bzw. einstellbar.The tubes 124a, 124b are in the overlapping region 125, for example by means of formation of corresponding thread devices, against each other displaced and locked together. The total length of the housing 124 is thus variable or adjustable by appropriate displacement of the tubes 124a, 124b.

Der Stößel 126 ist längsverschiebbar in einer Hülse 127 gelagert, die in Längsrichtung einstellbar und festsetzbar bzw. arretierbar in den Rohren 124a, 124b angeordnet ist. Die Hülse 127 bildet mit ihrem oberen Ende 127a die obere Stößellagerung 128, d.h. einen Anschlag für das Kopfende 126a des Stößels zur Begrenzung der Bewegung des Stößels 126 in Abwärtsrichtung. Durch die Einstellbarkeit und Festsetzbarkeit der Hülse 127 in Längsrichtung ist somit ein einstellbarer Anschlag für die Stößelbewegungnach unten zur Verfügung gestellt.The plunger 126 is longitudinally displaceably mounted in a sleeve 127 which is arranged in the longitudinal direction adjustable and fixable or lockable in the tubes 124a, 124b. The sleeve 127 forms with its upper end 127a the upper ram bearing 128, i. a stop for the head end 126a of the plunger to limit the movement of the plunger 126 in the downward direction. Due to the adjustability and fixability of the sleeve 127 in the longitudinal direction thus an adjustable stop for the plunger movement is provided down.

In der Ausführungsform der Figur 3 ist das von oben kommende Begrenzerseilende 122a an einem Ende des oberen Rohres 124a befestigt. Die bereits erwähnte Öffnung 144 des Gehäuses ist zweckmäßigerweise in dem oberen Rohr 124a ausgebildet. Durch diese Öffnung, kann, wie erwähnt, das am Stößel 126 schwenkbar gelagerte Fanggestänge 140 nach außen ragen. Vorteilhafterweise weist das Gehäuse bzw. das obere Rohr 124a mindestens zwei seitlich zueinander versetzte Öffnungen 144 auf, wobei wenigstens eine dieser Öffnungen zu leichteren Montage des Fanggestänges 140 an dem Stößel 126 verwendbar ist. Wie in Figur 4 zu erkennen, wird eine verschwenkbare Lagerung des Fanggestänges 140 an dem Stößel 126 zweckmäßigerweise mittels eines Gelenks 140a bewerkstelligt. In Figur 4 sind ferner die Normalbetriebspositionen des Fanggestänges 140 in durchgezogenen Linien und die Auslöseposition in gestrichelten Linien dargestellt.In the embodiment of the FIG. 3 For example, the restricting cable end 122a coming from above is fixed to one end of the upper pipe 124a. The already mentioned opening 144 of the Housing is suitably formed in the upper tube 124a. Through this opening, as mentioned, the catch rod 126 pivotally mounted on the plunger 126 can protrude outward. Advantageously, the housing or the upper tube 124a has at least two laterally offset openings 144, wherein at least one of these openings for easier mounting of the catch rod 140 on the plunger 126 is used. As in FIG. 4 can be seen, a pivotable mounting of the catch rod 140 on the plunger 126 is conveniently accomplished by means of a hinge 140a. In FIG. 4 Furthermore, the normal operating positions of the catch rod 140 in solid lines and the release position are shown in dashed lines.

Zwischen der Hülse 127 und dem unteren Rohr 124b ist ein Federteller 134 angeordnet, der auf der Hülse 127 in Längsrichtung verschiebbar und festsetzbar ist. Der Federteller 134 ist zweckmäßigerweise auch in dem oberen oder unteren Rohr in Längsrichtung verschiebbar und festsetzbar. Der Federteller dient als unterer Anschlag für die Feder 130.Between the sleeve 127 and the lower tube 124b, a spring plate 134 is arranged, which is displaceable and fixable on the sleeve 127 in the longitudinal direction. The spring plate 134 is expediently displaceable and fixable in the upper or lower tube in the longitudinal direction. The spring plate serves as a lower stop for the spring 130th

Für eine relative Verschiebung von Hülse 127 und Federteller 134 zueinander zur Einstellung der Federkraft weist die Hülse 127 zweckmäßigerweise ein Außengewinde, und der Federteller 134 ein entsprechendes Innengewinde auf.For a relative displacement of sleeve 127 and spring plate 134 to each other for adjusting the spring force, the sleeve 127 expediently has an external thread, and the spring plate 134 has a corresponding internal thread.

Der Federteller 134 ist zweckmäßigerweise mit seinem Außenumfang am unteren Rohr 124b befestigt. Durch Ausbildung entsprechender Gewinde kann der Federteller 134 gegenüber dem unteren Rohr verschiebbar ausgebildet sein. Durch die Ausbildung entsprechender Gewinde zwischen dem oberen Rohr und dem unteren Rohr kann, über eine Verschiebung des oberen Rohrs und des unteren Rohrs zueinander, auch eine Verschiebung des Federtellers relativ zu dem oberen Rohr bewerkstelligt werden. Ebenso könnten sämtliche Verstellungen durch ein zusätzliches Bauteil, beispielsweise mit einem Hebel, hydraulisch, pneumatisch oder mit einem elektrischen Antrieb vorgenommen werden.The spring plate 134 is expediently fastened with its outer circumference to the lower tube 124b. By forming appropriate threads of the spring plate 134 may be formed slidably relative to the lower tube. By forming appropriate thread between the Upper tube and the lower tube can be accomplished by a displacement of the upper tube and the lower tube to each other, also a displacement of the spring plate relative to the upper tube. Likewise, all adjustments could be made by an additional component, for example with a lever, hydraulically, pneumatically or with an electric drive.

Eine Arretierung beispielsweise des oberen Rohres 124a bezüglich des unteren Rohres 124b kann nach dem Einstellen einer gewünschten Positionierung beispielsweise durch Verschrauben durch ein Langloch 129 in einem Rohr und ein Gewinde in dem jeweils anderen Rohr erreicht werden. Die Hülse 127 und das untere Rohr 124b können nach der Einstellung einer gewünschten Relativposition beispielsweise durch Verschrauben bzw. eine Verschraubung 135 arretiert werden.A locking example of the upper tube 124a with respect to the lower tube 124b can be achieved after setting a desired positioning, for example by screwing through a slot 129 in a tube and a thread in the other tube. The sleeve 127 and the lower tube 124b can be locked after setting a desired relative position, for example by screwing or a screw 135.

Vorteilhafterweise weist die Hülse 127 an ihrem unteren Ende auf dem Außenumfang einen Mehrkant oder eine andere Angriffsmöglichkeit, in Figur 4 schematisch mit 127b bezeichnet, zur Erleichterung des Angriffs zum Verdrehen der Hülse 127 oder zum Festhalten der Hülse, wenn andere Teile, beispielsweise das untere Rohr 124b verdreht werden sollen, auf.Advantageously, the sleeve 127 at its lower end on the outer periphery of a polygon or other attack possibility, in FIG. 4 schematically indicated at 127b, to facilitate the attack to twist the sleeve 127 or to hold the sleeve when other parts, such as the lower tube 124b are to be rotated on.

Die Feder 130 ist zwischen dem Federteller 134 und dem Kopfende 126a des Stößels 126 angeordnet, wobei, wie erwähnt, das obere Hülsenende 127a bei der dargestellten Ausführungsform die obere Stößellagerung 128 für das Kopfende 126a des Stößels beim Spannen der Feder durch das Spannen des Begrenzerseils 122 bildet. Mit dem Spannen des Begrenzerseils durch Vergrößerung des Abstands der beiden Umlenkrollen oder durch entsprechende Verschiebungen in der Auslösevorrichtung wird die Feder 130 gespannt und nach Auflage des Stößels 126 auf der oberen Stößellagerung 128 kann nach Notwendigkeit die Spannung im Begrenzerseil 122 erhöht werden.The spring 130 is disposed between the spring plate 134 and the head end 126a of the plunger 126, wherein, as mentioned, the upper sleeve end 127a in the illustrated embodiment, the upper plunger bearing 128 for the head end 126a of the plunger during tensioning of the spring by the tensioning of the governor rope 122nd forms. By tightening the governor rope by increasing the distance between the two Pulleys or by appropriate shifts in the triggering device, the spring 130 is tensioned and after resting the plunger 126 on the upper ram bearing 128, the voltage in the governor 122 can be increased as needed.

Mit der dargestellten Ausführungsform ist aufgrund der Verschiebbarkeit der Hülse 127 die obere Stößellagerung bzw. der untere Anschlag für den Stößel 126 höheneinstellbar, so dass bei unterschiedlichen Aufzugsanlagen unterschiedliche Hebelausbildungen des Fanggestänges 140, bzw. Hebelbewegungen, Längenverhältnisse oder Kräfte eingestellt oder berücksichtigt werden können.With the illustrated embodiment, due to the displaceability of the sleeve 127, the upper plunger bearing or the lower stop for the plunger 126 can be adjusted in height, so that in different elevator systems different lever configurations of the catch rod 140, or lever movements, aspect ratios or forces can be set or taken into account.

Es wurde bereits erwähnt, dass die Seilspannung des Begrenzerseils 122 mittels Verschwenkens der unteren Umlenkrolle 150 einstellbar ist. Zusätzlich oder alternativ hierzu können die Seilspannung und/oder die Vorspannung der Feder 130 durch Verschieben der Rohre 124a, 124b sowie der Hülse 127 relat.iv zueinander verändert werden.It has already been mentioned that the cable tension of the governor rope 122 can be adjusted by pivoting the lower deflecting roller 150. Additionally or alternatively, the cable tension and / or the bias of the spring 130 by moving the tubes 124a, 124b and the sleeve 127 relat.iv each other can be changed.

Nach einer Einstellung einer Seilspannung des Begrenzerseils 122 beispielsweise durch entsprechende Positionierung der Hülse 127 kann durch eine Verschiebung des unteren Rohres 124b relativ zu dem oberen Rohr 124a die Federspannung der Feder 130 derart angepasst werden, dass bei Normalfang, d.h. im Falle einer überhöhten Geschwindigkeit des Fahrkorbes, der Kopf 126a des Stößels 126 auf dem oberen Ende 127a der Hülse mit ausreichender Kraft liegenbleibt und nicht abhebt, während der Auslösemechanismus 120 insgesamt gegenüber dem Fahrkorb 110 verschoben wird.After adjusting a rope tension of the governor rope 122, for example, by appropriate positioning of the sleeve 127 can be adjusted by a displacement of the lower tube 124b relative to the upper tube 124a, the spring tension of the spring 130 such that at normal catch, ie in the case of excessive speed of the car That is, the head 126a of the plunger 126 on the upper end 127a of the sleeve is left with sufficient force and does not lift off while the trigger mechanism 120 is displaced with respect to the car 110 as a whole.

Zusätzlich oder alternativ hierzu kann nach der Einstellung der Seilspannung des Begrenzerseils 122 mittels der entsprechenden Positionierung der Hülse 127 durch eine Verschiebung des unteren Rohres gegen das obere Rohr die Spannung der Feder so angepasst werden, dass bei Spannungsverlust oder Bruch oder Reissen des Begrenzerseils 122 das Kopfende 126a des Stößels von dem oberen Hülsenende 127a mittels der gespeicherten Federkraft (Vorspannung) der Feder 130 abgehoben wird, und mit dem sich bewegenden Stößel das Fanggestänge 140 betätigt. Hierbei stützt sich der Auslösemechanismus 120 auf dem Verbindungspunkt zu dem Fahrkorb bzw. dem Fangrahmen oder dem Fördermittel, das heißt dem Bolzen 111 in dem Langloch 132, ab.Additionally or alternatively, after adjustment of the rope tension of the governor rope 122 by means of the corresponding positioning of the sleeve 127 by displacement of the lower tube against the upper tube, the tension of the spring can be adjusted so that upon loss of tension or breakage or tearing of the governor rope 122 the head end 126a of the plunger of the upper sleeve end 127a is lifted by means of the stored spring force (bias) of the spring 130, and with the moving plunger, the catch rod 140 is actuated. Here, the trigger mechanism 120 is supported at the connection point to the car or the catch frame or the conveyor, that is, the bolt 111 in the slot 132, from.

Vorteilhafterweise ist das Fanggestänge 140 zum einem mittels des Gelenks 140a an dem Stößel 126, und zum anderen an dem Fahrkorb gelenkig oder drehbar gelagert, und weist ferner einen dritten gelenkigen Anschluß zum Auslösen der Fangvorrichtung auf. In den Figuren 2a) - 2c) ist ein derartiges zweites Gelenk an dem Fahrkorb mit 140b bezeichnet. Der dritte gelenkige Anschluß stellt eine spezielle Ausführung der Verbindung 142 dar.Advantageously, the catch rod 140 is pivotally or rotatably mounted on the plunger 126 by means of the joint 140a, and on the car, and also has a third articulated connection for triggering the catching device. In the Figures 2a) - 2c ), such a second joint on the car is designated 140b. The third hinged connection is a special embodiment of the connection 142.

In Figur 5 ist schließlich der Bereich eines Unterholm eines Fahrkorbes dargestellt, an dem der Auslösemechanismus 120, wie er beispielsweise in den Figuren 3 und 4 dargestellt ist, angebracht ist. Zusätzlich zu dem Auslösemechanismus 120 erkennt man auf dem Unterholm 510 vorgesehene Kabinenisolationsvorrichtungen 512. Unterhalb des Unterholms sind Rollenführungen 514 vorgesehen. Eine Fangvorrichtung ist in Figur 5 dargestellt und mit 516 bezeichnet.In FIG. 5 Finally, the area of a lower beam of a car is shown, on which the trigger mechanism 120, as shown for example in the Figures 3 and 4 is shown attached. In addition to the triggering mechanism 120, cabin insulation devices 512 provided on the lower beam 510 can be seen. Roller guides 514 are provided below the sub-beam. A safety gear is in FIG. 5 represented and designated 516.

Claims (10)

1. Apparatus for actuating a catching device on a lift cage or a conveying means of a lift installation, having a limiter cable (122) connected to the lift cage or the conveying means and adapted to be braked, the catching device being adapted to be actuated by the braking of the limiter cable (122), comprising an actuating mechanism (120) arranged between the limiter cable (122) and the lift cage or the conveying means, which is connected to both ends (122a, 122b) of the limiter cable (122)) and is movably mounted on the lift cage or the conveying device (110), the two ends (122a, 122b) of the limiter cable (122) being attached to components (124, 126) of the actuating mechanism (120) that are mounted to be movable witz respect to one another, characterised in that it is capable of actuating the catching device both with the aid of the tensile force of the limiter cable and also without the aid of the tensile force of the limiter cable, while in the event of an elongation of the limiter cable (122) beyond a predeterminable maximum value or a drop in the tension of the cable below a predeterminable minimum value or in the event of breakage of the limiter cable, the actuating mechanism can be moved out of a defined operating position into an actuating position by one of the components (126) of the actuating mechanism that are movable with respect to one another being movable out of a defined operating position relative to the other one (124) of the movable components into an actuating position relative to the other one (124) of the movable components by means of a permanently stored energy (130).
Apparatus according to claim 1, characterised in that the actuating mechanism comprises a tensioned spring (130).
Apparatus according to one of the preceding claims, characterised by a mechanism (131, 132, 111) for enabling a relative movement of the actuating mechanism (120) relative to the lift cage (110), so that in the event of a defined excessive speed of the lift cage (110) or the conveying means, the actuating mechanism can be brought from the normal operating position into a further actuating position by braking of the limiter cable.
Apparatus according to one of the preceding claims, characterised in that the actuating mechanism (120) is constructed with a catching linkage (140) movably mounted on the lift cage.
Apparatus according to one of the preceding claims, characterised in that the second component (124) of the actuating mechanism (120) is provided as a housing, and the first component (126) is provided as a ram that is movable within the housing (124).
Apparatus according to claim 5, characterised in that the housing (124) has two housing parts (124a, 124b) that can be moved relative to one another, so that the overall length of the housing (124) is adjustable.
Apparatus according to one of the preceding claims, characterised in that the ram (126) is guided in a sleeve (127), one end of the sleeve acting as a stop for a head region (126a) of the ram (126).
Method of actuating a catching device on a lift cage or a conveying means of a lift installation with the apparatus according to claim 1, characterised in that between the limiter cable (122) and the lift cage or the conveying means an actuating mechanism (120) is arranged which is connected to two ends (122a, 122b) of the limiter cable (122) and is movably mounted on the lift cage or the conveying means (110), wherein, in the event of breakage of the cable or a drop in the tension of the limiter cable below a predeterminable minimum value, the actuating mechanism is moved out of a normal operating position into an actuating operating position, as a result of which a catching linkage (140) of the actuating mechanism is moved from am operating position into an actuating position, and whereby a catching device connected to the catching linkage (140) is then actuated.
Method according to claim 8, characterised in that the movement of the actuating mechanism from the normal operating position into the actuating operating position is implemented by a relative movement of two components (124, 126) of the actuating mechanism to one another.
Method according to one of claims 8 or 9, characterised in that, where the limiter cable (122) is correctly tensioned, in the event of the lift cage (110) exceeding a preselectable maximum speed, the limiter cable is blocked and as a result relative movement between the lift cage (110) and the actuating mechanism (120) is implemented, thereby actuating the catching device.
EP06762100A 2005-12-05 2006-06-20 Apparatus for, and method of, triggering an intercepting means Not-in-force EP1957391B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06762100A EP1957391B1 (en) 2005-12-05 2006-06-20 Apparatus for, and method of, triggering an intercepting means

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05026488 2005-12-05
EP06762100A EP1957391B1 (en) 2005-12-05 2006-06-20 Apparatus for, and method of, triggering an intercepting means
PCT/EP2006/005911 WO2007065488A1 (en) 2005-12-05 2006-06-20 Apparatus for, and method of, triggering an intercepting means

Publications (2)

Publication Number Publication Date
EP1957391A1 EP1957391A1 (en) 2008-08-20
EP1957391B1 true EP1957391B1 (en) 2010-08-11

Family

ID=37564124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06762100A Not-in-force EP1957391B1 (en) 2005-12-05 2006-06-20 Apparatus for, and method of, triggering an intercepting means

Country Status (6)

Country Link
EP (1) EP1957391B1 (en)
AT (1) ATE477208T1 (en)
DE (1) DE502006007659D1 (en)
ES (1) ES2349714T3 (en)
RU (1) RU2398727C2 (en)
WO (1) WO2007065488A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2965558B1 (en) * 2010-10-05 2013-11-15 Arnoult Patrice TENSIONER DEVICE FOR PARACHUTE CONTROL SPEED LIMITER FOR ELEVATOR
BR112015011905A2 (en) * 2012-12-17 2017-07-11 Mitsubishi Electric Corp elevator appliance
DE202015105373U1 (en) * 2015-10-09 2017-01-11 Wittur Holding Gmbh Spring-loaded tensioning device for speed limiter cable
RU2764310C1 (en) * 2021-02-23 2022-01-17 Алексей Геннадьевич Данилов Apparatus for elevator safety

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58119573A (en) * 1982-01-07 1983-07-16 三菱電機株式会社 Elevator device
JP4107728B2 (en) * 1998-09-07 2008-06-25 東芝エレベータ株式会社 Elevator equipment
JP2000219450A (en) * 1999-02-01 2000-08-08 Toshiba Corp Elevator device
ES2169988B1 (en) * 2000-03-17 2003-10-01 Otis Elevator Co CONTROLLER DEVICE OF THE DRIVER OF THE SPEED LIMITER OF AN ELEVATOR.
DE50309764D1 (en) * 2002-04-02 2008-06-19 Inventio Ag Device for engaging a safety gear for an elevator car
MY135853A (en) * 2003-02-04 2008-07-31 Inventio Ag Safety device for an elevator

Also Published As

Publication number Publication date
EP1957391A1 (en) 2008-08-20
WO2007065488A1 (en) 2007-06-14
ATE477208T1 (en) 2010-08-15
RU2008125988A (en) 2010-01-20
RU2398727C2 (en) 2010-09-10
DE502006007659D1 (en) 2010-09-23
ES2349714T3 (en) 2011-01-10

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