EP1700811B1 - Elevator - Google Patents

Elevator Download PDF

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Publication number
EP1700811B1
EP1700811B1 EP05005443A EP05005443A EP1700811B1 EP 1700811 B1 EP1700811 B1 EP 1700811B1 EP 05005443 A EP05005443 A EP 05005443A EP 05005443 A EP05005443 A EP 05005443A EP 1700811 B1 EP1700811 B1 EP 1700811B1
Authority
EP
European Patent Office
Prior art keywords
cable
installation according
elevator installation
car
counterweight
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
Application number
EP05005443A
Other languages
German (de)
French (fr)
Other versions
EP1700811A1 (en
Inventor
Günter Dr.-Ing. Reuter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TK Elevator GmbH
Original Assignee
ThyssenKrupp Elevator AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to ES05005443T priority Critical patent/ES2399095T3/en
Application filed by ThyssenKrupp Elevator AG filed Critical ThyssenKrupp Elevator AG
Priority to EP05005443A priority patent/EP1700811B1/en
Priority to CN2005800490635A priority patent/CN101142136B/en
Priority to MX2007011133A priority patent/MX2007011133A/en
Priority to JP2008500055A priority patent/JP2008532880A/en
Priority to KR1020077020871A priority patent/KR101011644B1/en
Priority to RU2007137627/11A priority patent/RU2410321C2/en
Priority to BRPI0520111-0A priority patent/BRPI0520111A2/en
Priority to PCT/EP2005/011541 priority patent/WO2006097138A1/en
Priority to TW095107867A priority patent/TWI295271B/en
Publication of EP1700811A1 publication Critical patent/EP1700811A1/en
Priority to US11/899,990 priority patent/US20080060884A1/en
Application granted granted Critical
Publication of EP1700811B1 publication Critical patent/EP1700811B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00Other common features of elevators
    • B66B7/06Arrangements of ropes or cables
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00Other common features of elevators
    • B66B7/06Arrangements of ropes or cables
    • B66B7/08Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings

Definitions

  • the invention relates to an elevator system with at least one car movable in a shaft, which is connected via two cable strands, which are assigned to different sides of the car, with a counterweight, and with a motor-driven traction sheave, over which the two cable strands are guided, wherein the Car is kept in a suspension ratio of 1: 1.
  • Such elevator systems are from the EP-A-1 329 412 known.
  • This elevator system two in a shaft independently upwards and downwards movable cars are used.
  • the upper car is connected to a traction sheave and a counterweight via a single, multi-strand cable harness. Starting from this counterweight, the rope strand is then guided to a traction sheave of the lower car, and then the rope strand is divided into two rope strands, which run at a distance from each other and each associated with one side of the lower car.
  • the lateral arrangement of the two cable strands of the lower car makes it possible to guide the cable strands each on one side of the upper car, which occupies a position between the two strands of rope.
  • a separate drive is used, which is coupled to the respective traction sheave and causes it to rotate.
  • the different expansion behavior of the two cable strands is not negligible.
  • the car is maintained in a suspension ratio of 1: 1, so that the change in height of the car is identical to the feed of the cable strands and consequently there is no relative movement between the cable strands and the car.
  • Object of the present invention is to develop an elevator system of the type mentioned in such a way that a different elongation behavior of the two cable strands can be compensated.
  • the cable length compensation device By means of the cable length compensation device, a different elongation behavior of the two cable strands can be compensated, in particular larger, resulting in operation of the elevator system length differences of the two cable strands can be compensated despite the suspension ratio of 1: 1 with a cable guide the rope strands on two different ways.
  • the two cable strands are loaded in the elevator installation according to the invention with the same tensile force, so that sets for both cable strands practically the same friction behavior in the range of the traction sheave. In addition, a tilt of the car is avoided.
  • the rope length compensation device can be positioned on the car or on the counterweight. It can be arranged, for example, above or below the car or the counterweight.
  • the car is both a user-accessible car cabin without a car frame and a car cabin including a car frame, on which the car cabin is held.
  • the cable length compensation device has two connecting members, via which the two cable strands are operatively connected to the car or the counterweight, wherein the cable strands are coupled together between the two connecting members or via the two connecting members.
  • the cable strands each act on a connecting member which is associated with the respective cable strand.
  • the link is disposed adjacent to a plane defined by the side of the car or counterweight to which the respective cable strand is associated.
  • the rope strands comprise several single ropes.
  • the connecting members comprise a plurality of connecting elements, wherein each individual cable is assigned a connecting element and individual cables of the two cable strands between the respective connecting elements or via the respective connecting elements are coupled together.
  • Such a configuration has the advantage that a rope length compensation and thus a train compensation is made possible between individual ropes of the two cable strands, so that a different elongation behavior of the individual ropes can be compensated.
  • a locking device is arranged between the connecting links for non-displaceable mounting of the cable strands relative to the car or to the counterweight.
  • Such a configuration makes it possible to prevent a cable length compensation in the presence of certain operating conditions of the elevator system, for example in the presence of a malfunction.
  • an immovable mounting of the two cable strands relative to the car or the counterweight can be ensured by means of the locking device.
  • the locking device can be deactivated, so that a rope length compensation is possible during normal operation of the elevator system.
  • the locking device may for example comprise a cable clamp with which the cable strands can be fixed immovably on the car or on the counterweight.
  • the connecting links at least one cable tension compensation element is assigned to compensate for the rope strands prevailing rope tensions.
  • the cable tension compensation elements can be counteracted in addition to the compensation of the rope lengths directly a difference in the rope tensions by the rope tension is increased in the one strand of rope and reduced in the other strand of rope.
  • the cable strands have a plurality of individual cables, then it is particularly advantageous if a plurality of cable tension compensation elements are assigned to the connecting elements to compensate for the cable stresses prevailing in the individual cables. This can be ensured in a structurally simple manner that the individual cables of a rope strand have virtually the same cable tension and therefore loaded in the same way and are not overloaded.
  • the at least one cable tension compensation element can interact in different ways with at least one cable strand and a connecting member.
  • a cable tension compensation element is arranged between a cable strand and a connecting link.
  • a cable tension compensation element is arranged between a connecting link and the car or the counterweight.
  • the cable tension compensation element comprises in a structurally particularly simple embodiment, a spring element.
  • the two connecting members are coupled together via a rope length compensation element.
  • the links can hereby be movably held on the car or on the counterweight be, so that by moving at least one link, a difference in the pitches of the two cable strands can be compensated.
  • the cable length compensation element has a linear adjustment system, for example a linear drive element, in particular an electrical, mechanical, hydraulic or pneumatic drive element for a linear (linear) movement, for example a hydraulic or pneumatic piston-cylinder unit.
  • a linear adjustment system has the advantage that by means of an electric, mechanical, hydraulic or pneumatic adjusting actively a difference in the cable lengths of the two cable strands can be counteracted by the linear adjustment is activated according to a present pitch difference and thus extended or shortened.
  • the connecting members are spaced from each other and the two cable strands are preferably integrally connected to one another between the connecting members.
  • Such a configuration makes it possible to guide the interconnected cable strands around the connecting members and thereby to achieve an immediate tension and length compensation between the cable strands.
  • the connecting members are designed as deflection members, around which a cord is guided around each. It can be provided that the cable strands are slidably supported on the respective deflecting member so that they can move relative to the deflecting member to compensate for an unequal tensile load of the two cable strands.
  • the deflecting members are designed as freely rotatable deflection rollers.
  • the deflecting rollers have a plurality of deflecting disks, with each individual cable being guided around a separate deflecting disk. This allows a particularly simple tension and length compensation between the individual cables of the two cable strands.
  • the deflecting pulleys of a deflection roller are rotatably supported relative to each other.
  • the deflection pulleys can rotate independently, so that in a rope length compensation only the affected individual rope is moved, while the other individual ropes of the rope strand experience no relative movement.
  • the deflecting members are held on a common carrier, which is arranged on the car or on the counterweight.
  • the deflecting members are each held on a separate carrier, which is arranged on the car or on the counterweight.
  • the carriers can, for example, each form a bearing block, on which a deflection member in the form of a deflection roller is freely rotatably mounted.
  • the deflecting members are held by means of a spring element on the car or on the counterweight.
  • the spring element not only allows the compensation of different cable lengths and cable tensions, but secures also a very low-vibration storage of the car or the counterweight.
  • the deflecting members are held by means of a linear adjustment system, for example a piston-cylinder unit, on the car or on the counterweight. By activating the linear adjustment system, the deflecting members can be moved relative to the car or to the counterweight.
  • the mutual distance of the deflecting members is variable.
  • the deflecting members each protrude beyond a side of the car or the counterweight and are held perpendicular to the plane defined by the respective car or counterweight side plane, thereby changing the distance between the deflecting members.
  • the compensating movement of the deflecting members can also take place in the vertical direction.
  • the connecting members each form a pivotally mounted lever arm on which a cable strand is held.
  • a rope length compensation can be achieved in a structurally simple way.
  • the lever arms have a plurality of lever arm elements, on each of which a single cable is held. As a result, a different expansion behavior of the individual ropes of a rope strand can be compensated.
  • the two lever arms are rigidly connected to each other and form a rocker.
  • the rocker may for example be mounted on a stand projecting from the car bearing block.
  • the rocker is pivotally held in the region of a vertical center axis of the car or the counterweight.
  • the rocker is formed symmetrically such that the two lever arms each have the same length.
  • the individual cables of the two cable strands are each coupled to one another via a rocker.
  • the individual cables can each be arranged on a cable tension compensation element at the ends of the rocker.
  • the cable tension compensation elements can be configured, for example, as a one-piece or multi-part spring.
  • the two cable strands have a different number of individual cables.
  • Such a configuration may be particularly advantageous for high shafts. It is advantageous if a rocker is used, which is held in the direction of the cable strand with the larger number of individual cables offset from the vertical center axis of the car or the counterweight pivotally. The rope strand with the larger number of individual ropes is thus held on a shorter lever arm than the rope strand with the smaller number of individual ropes.
  • a rope length compensation and thus a train compensation between the rope strands can be achieved.
  • the pivoting movement of the rocker can be monitored by means of a sensor.
  • a sensor for this purpose, in particular a non-contact sensor, for example a magnetic field sensor, preferably a Hall sensor, can be used or else a conventional incremental encoder which is coupled to the pivot axis of the rocker. It can also be the approach of a lever arm of the Rocker be monitored to the car by the distance between the lever arm and the car is detected by a sensor.
  • a control signal can be output from the sensor when a predetermined pivoting angle of the rocker or a predetermined distance between the lever arm and the car is exceeded.
  • the control signal may be provided to an elevator controller of the elevator system so that the elevator controller may issue a visual or audible warning signal upon the presence of the control signal to indicate to the user that the two cable strands have a very different cable length, for example due to a longer service life of the cable strands.
  • the two connecting members are each configured as pivotally mounted angle lever with a first side arm and an angle, preferably oriented at right angles to this second side arm, wherein the first side arm a cable strand is held and the second side arms connected to each other via a coupling member are.
  • the first side arms may each protrude beyond a side wall of the car or counterweight and may face in opposite directions, with each of the free ends of the first side arm adjacent to a cable strand.
  • the cable strand can be rigidly connected to the respective side arm. It is particularly advantageous, however, if the cable strand is fixed to the first side arm via a cable tension compensation element, in particular a spring element.
  • the second side arms may be vertically aligned with each other via the coupling member.
  • the coupling member may comprise a spring element which is clamped between the second side arms.
  • the coupling member has a linear adjustment system, so that the second side arms, for example, electrically, mechanically, pneumatically or hydraulically coupled to each other.
  • the angle levers each comprise a plurality of angle lever elements with a first and a second side arm, wherein a single cable is held on a first side arm of an angle lever element, preferably via a cable tension compensation element, and the second side arms of two Angle lever elements are connected to each other via their own coupling members. Different cable lengths of single ropes can thus be counteracted particularly effectively.
  • the angle lever elements are held pivotally to each other.
  • FIG. 1 an elevator system 10 is shown with a car 12, which is movable in a shaft 13 for the transport of persons and / or loads and a car frame 14 and a car cabin 15 has.
  • the car 12 is connected in a suspension ratio of 1: 1 via two cable strands 17, 18 with a counterweight 20, wherein the cable strands 17, 18 are guided over a common traction sheave 21 which is rotationally driven by means of a drive 22.
  • the cable strands 17 and 18 are each associated with a car side 24 and 25 respectively.
  • the car carries a cable length compensation device 30 with two spaced-apart connecting members in the form of two guide rollers 32, 33, around each of a car-side end portion of the cable strands 17 and 18 is guided around.
  • the two guide rollers 32, 33 are each mounted on a support in the form of a rigidly connected to the car 12 bearing block 35 and 36 freely rotatable. Between the two pulleys 32, 33, the two cable strands 17, 18 are integrally connected.
  • the cable strands 17, 18 are also integrally connected to one another in the region of the counterweight 20 and guided around a counterweight roller 38 which is freely rotatably mounted on the upper side on the counterweight 20.
  • FIG. 2 shows a second embodiment of a total occupied by the reference numeral 40 elevator system according to the invention.
  • This is as well as the embodiments described in detail below, in the FIGS. 3 to 9 are designed largely identically designed as the elevator system 10.
  • the FIGS. 2 to 9 the same reference numerals as in FIG. 1 , To avoid repetition, reference is made in this regard to the above explanations.
  • the in the FIG. 2 Lift system 40 shown differs from the elevator system 10 in that below the car cabin 15, a rope length compensation device 42 is arranged.
  • This includes pulleys 44 and 45, which are each freely rotatably mounted on a common carrier 47, which is held by spring elements 49, 50 on the cab cage 15.
  • the cable clamp 52 By means of the cable clamp 52, the two cable strands 17, 18 are held relative to the car cage 15 immovable by being clamped firmly on the carrier 47.
  • the elevator system 40 also differs in that the two cable strands 17 and 18 are set directly on the counterweight 20.
  • a counterweight roller, as used in the elevator installation 10, is omitted in the elevator installation 40.
  • FIG. 3 a third embodiment of an elevator system is shown in fragmentary form, which is occupied overall by the reference numeral 60.
  • cable strands 61 and 62 are used, each having a plurality of individual cables 63 and 64 respectively.
  • the cable strands 61 and 62 are guided around deflecting rollers of a cable length compensation device 67 mounted on the underside of the car 12, wherein, however, each individual cable 63 or 64 is assigned a separate deflecting disk 65 or 66 of the deflecting rollers.
  • each deflection roller and in particular each deflection pulley 65, 66 is held separately resilient. The resilient mounting of the carrier 47 by means of the spring elements 49, 50 is then not required.
  • FIG. 4 is a total occupied by the reference numeral 70 fourth embodiment of an elevator system according to the invention with a rope length compensation unit 74 shown in the underside of the car 12 arranged pulleys 71 and 72 are held on a rope length compensation element in the form of a hydraulic piston-cylinder unit 73, the underside am Car 12 is set.
  • the piston-cylinder assembly 73 forms a linear adjustment system by means of which the deflection rollers 71, 72 can be offset relative to each other in opposite directions in order to change the distance between the deflection rollers 71 and 72. By changing this distance changes in the cable lengths of the cable strands 61, 62 can be specifically compensated.
  • the pulleys 71, 72 as already in FIG.
  • a deflection pulley of the deflection roller 71 may be coupled via a piston-cylinder assembly 73 with a deflection pulley of the guide roller 72, so that the cable lengths of the individual cables of the cable strands 61, 62 can be individually compensated.
  • FIG. 5 shows a fifth embodiment of a generally designated by the reference numeral 80 inventive elevator system with a rope length compensation device 85, in which two pulleys 81, 82 are used, each free via a cable tension compensation element in the form of a spring element 83 and 84 at the bottom of the car 12 are rotatably mounted.
  • the cable strands 61, 62 are integrally connected to each other in the area between the guide rollers 81 and 82, so that between the cable strands 61, 62 can be made a length compensation during operation of the elevator system 80.
  • the storage of the guide rollers 81 and 82 by means of the spring elements 83 and 84 makes it possible to counteract different cable tensions of the cable strands 61, 62 in a structurally simple manner.
  • the pulleys 81, 82 may have individual, mutually rotatable deflection pulleys, around each of which a single rope of the cable strands 61, 62 is guided around.
  • the individual deflecting disks can each be mounted on the car 12 via a separate spring element 83, 84, so that the cable tensions of the individual cables can be individually compensated.
  • FIG. 6 a sixth embodiment of an elevator system according to the invention shown with reference numeral 90 shown with a rope length compensation device 107, are fixed at the cable strands 91 and 92 at the end via cable tension compensation elements in the form of spring elements 93 and 94 on a lever arm 95 and 96, respectively.
  • the two lever arms 95, 96 are integrally connected to each other and form a rocker 97, which is mounted in the region of a vertical center axis 98 of the car 12 about a horizontally oriented pivot axis 99 pivotally mounted on a carrier 100 which is rigidly connected to the car 12.
  • the cable strands 91 and 92 each have a plurality of individual cables 101 and 102, respectively, and the lever arms 95 and 96 each comprise lever arm elements 103 and 104, respectively, to which a single cable 101 or 102 is fixed via a spring element 93 and 94, respectively.
  • Two lever arm elements each form a rocker element 105, which is mounted pivotably relative to the remaining rocker elements 105 on the carrier 100.
  • All rocker elements 105 each cooperate with a rotary encoder 106, by means of which the pivotal position of the rocker element 105 can be detected and which provides a control signal when a maximum permissible and predefinable swivel angle of a known per se and therefore not shown in the drawing, so that the latter If the permissible swivel angle is exceeded, a warning signal can be output.
  • FIG. 7 A seventh embodiment of an elevator installation according to the invention with a rope length compensation device 108 is shown in FIG. 7 shown in detail and occupied by the reference numeral 110.
  • two cable strands 111 and 112 are used which have a different number of individual cables 113 and 114, respectively.
  • the individual cables 113 and 114 are fixed via cable tension compensation elements in the form of spring elements 115 and 116 respectively to a lever arm 117 and 118, respectively.
  • the lever arms 117 and 118 each form a connecting member of the cable length compensation device 108 and are pivotally mounted on the carrier 100.
  • the two lever arms 117, 118 form a rocker 119, in contrast to the in FIG. 6 illustrated embodiment offset from the vertical center axis 98 on the carrier 100 is pivotally mounted.
  • the rocker 119 in spite of the use of cable strands 111, 112 with a different number of individual ropes 113 and 114 in a structurally simple manner an equally high load and a length compensation of the cable strands 111, 112 can be achieved.
  • Via the spring elements 115 and 116 compensation of the cable tensions prevailing in the individual cables 113, 114 is additionally possible.
  • FIG. 8 is an overall denoted by the reference numeral 130 eighth embodiment of an elevator system according to the invention is shown in which a rope length compensation device 131 is used, the two spaced apart connecting members in the form of two angle levers 133, 134 each having a first side arm 135 and 136 and a
  • the angle levers 133, 134 are pivotable about horizontal pivot axes 139 and 140, respectively, on carriers 141 and 142 fixed to the underside of the car 12, respectively held.
  • a respective cable strand 143 and 144 is fixed, and the second side arms 137, 138 are connected to each other via a coupling member in the form of a tension spring 145.
  • FIG. 9 a ninth embodiment of an elevator installation according to the invention with a cable length compensation device 164 is shown in which, corresponding to the elevator installation 130, two angle levers 151 and 152 are used, each with a first side arm 153 or 154 and a second side arm 155 or 156 Once again, a cable strand 157 or 158 is fixed to the first side arms 153, 154.
  • the second side arms 155, 156 are not coupled to one another via a tension spring but via a linear adjustment system in the form of a hydraulic piston-cylinder unit 159.
  • the two angle levers 151, 152 are mounted on a common carrier 160, which is formed substantially U-shaped and two fixed to the car 12 support arms 161, 162, which are integrally connected via a support web 163.
  • the piston-cylinder unit 159 is held between the two support arms 161, 162 and is thus covered on the top side by the car 12 and on the underside by the support web 163. It forms a rope length compensation element to compensate for different cable lengths of the cable strands 157, 158th
  • the cable strands 143, 144 and 157, 158 may comprise a plurality of individual cables, each of which is assigned a separate angle lever 133, 134 and 151, 152, respectively an angle lever 133 or 151 is coupled via a separate coupling member 145 or 159 with an associated angle lever 134 or 152.
  • the cable lengths of individual cables of the cable strands 143, 144 and 157, 158 are compensated regardless of the pitch of the remaining individual ropes. Especially at the in FIG.
  • rope length compensation device 164 may also be provided that the individual cables of the cable strands 157, 158 each have a spring element, as for example in FIG. 6 shown and occupied by the reference numerals 93, 94, are held at the respective angle lever 151 and 152, respectively.
  • the spring elements allow a balance of the rope tensions of the individual ropes.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

Die Erfindung betrifft eine Aufzuganlage mit mindestens einem in einem Schacht verfahrbaren Fahrkorb, der über zwei Seilstränge, die unterschiedlichen Seiten des Fahrkorbs zugeordnet sind, mit einem Gegengewicht verbunden ist, und mit einer motorisch antreibbaren Treibscheibe, über die die beiden Seilstränge geführt sind, wobei der Fahrkorb in einem Aufhängungsverhältnis von 1:1 gehalten ist.The invention relates to an elevator system with at least one car movable in a shaft, which is connected via two cable strands, which are assigned to different sides of the car, with a counterweight, and with a motor-driven traction sheave, over which the two cable strands are guided, wherein the Car is kept in a suspension ratio of 1: 1.

Derartige Aufzuganlagen sind aus der EP-A-1 329 412 bekannt. Bei dieser Aufzuganlage kommen zwei in einem Schacht unabhängig voneinander aufwärts und abwärts verfahrbare Fahrkörbe zum Einsatz. Der obere Fahrkorb ist über einen einzigen, aus mehreren Einzelseilen bestehenden Seilstrang mit einer Treibscheibe und einem Gegengewicht verbunden. Ausgehend von diesem Gegengewicht wird der Seilstrang dann zu einer Treibscheibe des unteren Fahrkorbes geführt, und anschließend wird der Seilstrang aufgeteilt in zwei Seilstränge, die im Abstand zueinander verlaufen und jeweils einer Seite des unteren Fahrkorbs zugeordnet sind. Die seitliche Anordnung der beiden Seilstränge des unteren Fahrkorbs ermöglicht es, die Seilstränge jeweils an einer Seite des oberen Fahrkorbs vorbei zu führen, wobei dieser eine Position zwischen den beiden Seilsträngen einnimmt. Für die beiden Fahrkörbe kommt jeweils ein eigener Antrieb zum Einsatz, der mit der jeweiligen Treibscheibe gekoppelt ist und diese in Drehung versetzt.Such elevator systems are from the EP-A-1 329 412 known. In this elevator system two in a shaft independently upwards and downwards movable cars are used. The upper car is connected to a traction sheave and a counterweight via a single, multi-strand cable harness. Starting from this counterweight, the rope strand is then guided to a traction sheave of the lower car, and then the rope strand is divided into two rope strands, which run at a distance from each other and each associated with one side of the lower car. The lateral arrangement of the two cable strands of the lower car makes it possible to guide the cable strands each on one side of the upper car, which occupies a position between the two strands of rope. For each of the two cars, a separate drive is used, which is coupled to the respective traction sheave and causes it to rotate.

Der Einsatz zweier im Abstand zueinander angeordneter Seilstränge zum Antrieb eines Fahrkorbs führt im allgemeinen dazu, daß die beiden Seilstränge eine unterschiedliche Dehnung aufweisen, da die Seilstränge in aller Regel auf unterschiedlichen Wegen mit unterschiedlichen Biegebelastungen geführt werden. Ein unterschiedliches Dehnungsverhalten der Seilstränge ist auch bei einer gleichmäßigen Belastung des Fahrkorbes nicht auszuschließen, da die Seilstränge in aller Regel unterschiedlichen Reibungsverhältnissen unterliegen. Das unterschiedliche Dehnungsverhalten kann dazu führen, daß der an den beiden Seilsträngen gehaltene Fahrkorb schief steht. Es ist deshalb bekannt, die Seilstränge über Federelemente am Fahrkorb zu lagern. Allerdings kann mittels derartiger Federelemente das unterschiedliche Dehnungsverhalten der Seilstränge nicht an allen Fällen vollständig kompensiert werden, da insbesondere bei langen Seilsträngen die Federelemente mit ihrer üblichen Federlänge nicht zum vollständigen Ausgleich ausreichen.The use of two spaced apart cable strands to drive a car generally leads to the fact that the two cable strands have a different elongation, since the cable strands are usually performed in different ways with different bending loads. A different expansion behavior of the rope strands is also in a uniform load on the car can not be ruled out, since the cable strands are usually subject to different friction conditions. The different expansion behavior can cause the car held on the two cable strands is wrong. It is therefore known to store the cable strands on spring elements on the car. However, by means of such spring elements, the different elongation behavior of the cable strands can not be fully compensated in all cases, since especially with long strands of rope, the spring elements with their usual spring length are not sufficient for complete compensation.

Vor allem bei Hochgeschwindigkeitsaufzügen, bei denen mindestens ein Fahrkorb mit Hilfe von zwei Seilsträngen mit Geschwindigkeiten von meist über 4 m/s verfahren wird, ist das unterschiedliche Dehnungsverhalten der beiden Seilstränge nicht vernachlässigbar. Um Fahrgeräusche und Schwingungen des Fahrkorbes sowie Geräusche der Umlenkrollen und Seilstränge auch bei verhältnismäßig hohen Geschwindigkeiten im Fahrkorb gering zu halten, ist der Fahrkorb in einem Aufhängungsverhältnis von 1:1 gehalten, so daß die Höhenveränderung des Fahrkorbs identisch ist mit dem Vorschub der Seilstränge und folglich keine Relativbewegung zwischen den Seilsträngen und dem Fahrkorb vorliegt.Particularly in the case of high-speed elevators, in which at least one car is moved by means of two cable strands with speeds of mostly over 4 m / s, the different expansion behavior of the two cable strands is not negligible. To keep driving noises and vibrations of the car and noise of the pulleys and cable strands low even at relatively high speeds in the car, the car is maintained in a suspension ratio of 1: 1, so that the change in height of the car is identical to the feed of the cable strands and consequently there is no relative movement between the cable strands and the car.

Aufgabe der vorliegenden Erfindung ist es, eine Aufzuganlage der eingangs genannten Art derart weiterzubilden, daß ein unterschiedliches Dehnungsverhalten der beiden Seilstränge ausgeglichen werden kann.Object of the present invention is to develop an elevator system of the type mentioned in such a way that a different elongation behavior of the two cable strands can be compensated.

Diese Aufgabe wird bei einer Aufzuganlage der gattungsgemäßen Art erfindungsgemäß dadurch gelöst, daß die beiden Seilstränge über eine am Fahrkorb und/oder am Gegengewicht angeordnete Seillängenausgleichseinrichtung miteinander gekoppelt sind.This object is achieved in an elevator system of the generic type according to the invention that the two cable strands are coupled together via a arranged on the car and / or counterweight rope length compensation device.

Mittels der Seillängenausgleichseinrichtung kann ein unterschiedliches Dehnungsverhalten der beiden Seilstränge ausgeglichen werden, insbesondere können auch größere, beim Betrieb der Aufzuganlage entstehende Längenunterschiede der beiden Seilstränge kompensiert werden trotz des Aufhängungsverhältnisses von 1:1 mit einer Seilführung der Seilstränge auf zwei unterschiedlichen Wegen. Die beiden Seilstränge werden bei der erfindungsgemäßen Aufzuganlage mit der gleichen Zugkraft belastet, so daß sich für beide Seilstränge praktisch dasselbe Reibungsverhalten im Bereich der Treibscheibe einstellt. Außerdem wird eine Schrägstellung des Fahrkorbes vermieden.By means of the cable length compensation device, a different elongation behavior of the two cable strands can be compensated, in particular larger, resulting in operation of the elevator system length differences of the two cable strands can be compensated despite the suspension ratio of 1: 1 with a cable guide the rope strands on two different ways. The two cable strands are loaded in the elevator installation according to the invention with the same tensile force, so that sets for both cable strands practically the same friction behavior in the range of the traction sheave. In addition, a tilt of the car is avoided.

Die Seillängenausgleichseinrichtung kann am Fahrkorb oder auch am Gegengewicht positioniert sein. Sie kann beispielsweise über oder unter dem Fahrkorb bzw. dem Gegengewicht angeordnet sein. Als Fahrkorb wird vorliegend sowohl eine vom Benutzer betretbare Fahrkorbkabine ohne Fahrkorbrahmen als auch eine Fahrkorbkabine einschließlich eines Fahrkorbrahmens, an dem die Fahrkorbkabine gehalten ist, bezeichnet.The rope length compensation device can be positioned on the car or on the counterweight. It can be arranged, for example, above or below the car or the counterweight. In the present case, the car is both a user-accessible car cabin without a car frame and a car cabin including a car frame, on which the car cabin is held.

Bei einer besonders bevorzugten Ausführungsform der erfindungsgemäßen Aufzuganlage weist die Seillängenausgleichseinrichtung zwei Verbindungsglieder auf, über die die beiden Seilstränge mit dem Fahrkorb bzw. dem Gegengewicht wirkverbunden sind, wobei die Seilstränge zwischen den beiden Verbindungsgliedern oder über die beiden Verbindungsglieder miteinander gekoppelt sind. Die Seilstränge greifen jeweils an einem Verbindungsglied an, das dem jeweiligen Seilstrang zugeordnet ist. Vorzugsweise ist das Verbindungsglied einer Ebene benachbart angeordnet, die durch die Seite des Fahrkorbs bzw. des Gegengewichts definiert wird, der der jeweilige Seilstrang zugeordnet ist.In a particularly preferred embodiment of the elevator installation according to the invention, the cable length compensation device has two connecting members, via which the two cable strands are operatively connected to the car or the counterweight, wherein the cable strands are coupled together between the two connecting members or via the two connecting members. The cable strands each act on a connecting member which is associated with the respective cable strand. Preferably, the link is disposed adjacent to a plane defined by the side of the car or counterweight to which the respective cable strand is associated.

In vielen Fällen umfassen die Seilstränge mehrere Einzelseile. Hierbei ist es von Vorteil, wenn die Verbindungsglieder mehrere Verbindungselemente umfassen, wobei jedem Einzelseil ein Verbindungselement zugeordnet ist und Einzelseile der beiden Seilstränge zwischen den jeweiligen Verbindungselementen oder über die jeweiligen Verbindungselemente miteinander gekoppelt sind. Eine derartige Ausgestaltung hat den Vorteil, daß zwischen Einzelseilen der beiden Seilstränge ein Seillängenausgleich und damit auch ein Zugausgleich ermöglicht wird, so daß ein unterschiedliches Dehnungsverhalten der Einzelseile ausgeglichen werden kann.In many cases, the rope strands comprise several single ropes. It is advantageous if the connecting members comprise a plurality of connecting elements, wherein each individual cable is assigned a connecting element and individual cables of the two cable strands between the respective connecting elements or via the respective connecting elements are coupled together. Such a configuration has the advantage that a rope length compensation and thus a train compensation is made possible between individual ropes of the two cable strands, so that a different elongation behavior of the individual ropes can be compensated.

Von Vorteil ist es, wenn zwischen den Verbindungsgliedern eine Arretiereinrichtung angeordnet ist zur unverschieblichen Halterung der Seilstränge relativ zum Fahrkorb bzw. zum Gegengewicht. Eine derartige Ausgestaltung gibt die Möglichkeit, einen Seillängenausgleich bei Vorliegen bestimmter Betriebsbedingungen der Aufzuganlage zu unterbinden, beispielsweise bei Vorliegen einer Betriebsstörung. In diesem Falle kann mittels der Arretiereinrichtung eine unverschiebliche Halterung der beiden Seilstränge bezogen auf den Fahrkorb bzw. das Gegengewicht sichergestellt werden. Während des Normalbetriebs der Aufzuganlage kann die Arretiereinrichtung deaktiviert werden, so daß während des Normalbetriebs der Aufzuganlage ein Seillängenausgleich möglich ist.It is advantageous if a locking device is arranged between the connecting links for non-displaceable mounting of the cable strands relative to the car or to the counterweight. Such a configuration makes it possible to prevent a cable length compensation in the presence of certain operating conditions of the elevator system, for example in the presence of a malfunction. In this case, an immovable mounting of the two cable strands relative to the car or the counterweight can be ensured by means of the locking device. During normal operation of the elevator system, the locking device can be deactivated, so that a rope length compensation is possible during normal operation of the elevator system.

Die Arretiereinrichtung kann beispielsweise eine Seilklemme umfassen, mit der die Seilstränge unverschieblich am Fahrkorb bzw. am Gegengewicht festgelegt werden können.The locking device may for example comprise a cable clamp with which the cable strands can be fixed immovably on the car or on the counterweight.

Von besonderem Vorteil ist es, wenn den Verbindungsgliedern zumindest ein Seilspannungsausgleichselement zugeordnet ist zum Ausgleich der in den Seilsträngen herrschenden Seilspannungen. Mittels der Seilspannungsausgleichselemente kann zusätzlich zum Ausgleich der Seillängen unmittelbar einem Unterschied in den Seilspannungen entgegengewirkt werden, indem die Seilspannung in dem einen Seilstrang erhöht und in dem anderen Seilstrang verringert wird.It is particularly advantageous if the connecting links at least one cable tension compensation element is assigned to compensate for the rope strands prevailing rope tensions. By means of the cable tension compensation elements can be counteracted in addition to the compensation of the rope lengths directly a difference in the rope tensions by the rope tension is increased in the one strand of rope and reduced in the other strand of rope.

Weisen die Seilstränge mehrere Einzelseile auf, so ist es von besonderem Vorteil, wenn den Verbindungsgliedern mehrere Seilspannungsausgleichselemente zugeordnet sind zum Ausgleich der in den Einzelseilen herrschenden Seilspannungen. Dadurch kann auf konstruktiv einfache Weise sichergestellt werden, daß die Einzelseile eines Seilstranges praktisch dieselbe Seilspannung aufweisen und daher in gleicher Weise belastet und nicht überlastet werden.If the cable strands have a plurality of individual cables, then it is particularly advantageous if a plurality of cable tension compensation elements are assigned to the connecting elements to compensate for the cable stresses prevailing in the individual cables. This can be ensured in a structurally simple manner that the individual cables of a rope strand have virtually the same cable tension and therefore loaded in the same way and are not overloaded.

Das mindestens eine Seilspannungsausgleichselement kann in unterschiedlicher Weise mit mindestens einem Seilstrang und einem Verbindungsglied zusammenwirken. So kann beispielsweise vorgesehen sein, daß zwischen einem Seilstrang und einem Verbindungsglied ein Seilspannungsausgleichselement angeordnet ist.The at least one cable tension compensation element can interact in different ways with at least one cable strand and a connecting member. For example, it can be provided that a cable tension compensation element is arranged between a cable strand and a connecting link.

Alternativ oder ergänzend kann vorgesehen sein, daß zwischen einem Verbindungsglied und dem Fahrkorb bzw. dem Gegengewicht ein Seilspannungsausgleichselement angeordnet ist.Alternatively or additionally, it can be provided that a cable tension compensation element is arranged between a connecting link and the car or the counterweight.

Das Seilspannungsausgleichselement umfaßt bei einer konstruktiv besonders einfachen Ausgestaltung ein Federelement.The cable tension compensation element comprises in a structurally particularly simple embodiment, a spring element.

Es kann auch vorgesehen sein, daß die beiden Verbindungsglieder über ein Seillängenausgleichselement miteinander gekoppelt sind. Die Verbindungsglieder können hierbei beweglich am Fahrkorb bzw. am Gegengewicht gehalten sein, so daß durch Bewegen von mindestens einem Verbindungsglied ein Unterschied in den Seillängen der beiden Seilstränge ausgeglichen werden kann.It can also be provided that the two connecting members are coupled together via a rope length compensation element. The links can hereby be movably held on the car or on the counterweight be, so that by moving at least one link, a difference in the pitches of the two cable strands can be compensated.

Von Vorteil ist es, wenn das Seillängenausgleichselement ein lineares Verstellsystem aufweist, beispielsweise ein lineares Antriebselement, insbesondere ein elektrisches, mechanisches, hydraulisches oder pneumatisches Antriebselement für eine geradlinige (lineare) Bewegung, zum Beispiel ein hydraulisches oder pneumatisches Kolben-Zylinderaggregat. Der Einsatz eines linearen Verstellsystems hat den Vorteil, daß mittels einer elektrischen, mechanischen, hydraulischen oder pneumatischen Verstellgliedes aktiv einem Unterschied in den Seillängen der beiden Seilstränge entgegengewirkt werden kann, indem das lineare Verstellsystem entsprechend einem vorliegenden Seillängenunterschied aktiviert und somit verlängert oder verkürzt wird.It is advantageous if the cable length compensation element has a linear adjustment system, for example a linear drive element, in particular an electrical, mechanical, hydraulic or pneumatic drive element for a linear (linear) movement, for example a hydraulic or pneumatic piston-cylinder unit. The use of a linear adjustment system has the advantage that by means of an electric, mechanical, hydraulic or pneumatic adjusting actively a difference in the cable lengths of the two cable strands can be counteracted by the linear adjustment is activated according to a present pitch difference and thus extended or shortened.

Bei einer besonders bevorzugten Ausführungsform sind die Verbindungsglieder im Abstand zueinander angeordnet und die beiden Seilstränge sind zwischen den Verbindungsgliedern vorzugsweise einstückig miteinander verbunden. Eine derartige Ausgestaltung gibt die Möglichkeit, die miteinander verbundenen Seilstränge um die Verbindungsglieder herumzuführen und dadurch einen unmittelbaren Zug- und Längenausgleich zwischen den Seilsträngen zu erzielen.In a particularly preferred embodiment, the connecting members are spaced from each other and the two cable strands are preferably integrally connected to one another between the connecting members. Such a configuration makes it possible to guide the interconnected cable strands around the connecting members and thereby to achieve an immediate tension and length compensation between the cable strands.

Bei einer konstruktiv einfachen Ausgestaltung der erfindungsgemäßen Aufzuganlage sind die Verbindungsglieder als Umlenkglieder ausgestaltet, um die jeweils ein Seilstrang herumgeführt ist. Hierbei kann vorgesehen sein, daß die Seilstränge am jeweiligen Umlenkglied gleitend gehalten sind, so daß sie sich relativ zum Umlenkglied verschieben können, um eine ungleiche Zugbelastung der beiden Seilstränge auszugleichen.In a structurally simple embodiment of the elevator system according to the invention, the connecting members are designed as deflection members, around which a cord is guided around each. It can be provided that the cable strands are slidably supported on the respective deflecting member so that they can move relative to the deflecting member to compensate for an unequal tensile load of the two cable strands.

Vorzugsweise sind die Umlenkglieder als frei drehbare Umlenkrollen ausgestaltet.Preferably, the deflecting members are designed as freely rotatable deflection rollers.

Umfassen die beiden Seilstränge mehrere Einzelseile, so ist es von Vorteil, wenn die Umlenkrollen mehrere Umlenkscheiben aufweisen, wobei jedes Einzelseil um eine separate Umlenkscheibe herumgeführt ist. Dies ermöglicht einen besonders einfachen Zug- und Längenausgleich zwischen den Einzelseilen der beiden Seilstränge.If the two cable strands comprise a plurality of individual cables, then it is advantageous if the deflecting rollers have a plurality of deflecting disks, with each individual cable being guided around a separate deflecting disk. This allows a particularly simple tension and length compensation between the individual cables of the two cable strands.

Um eine gegenseitige Beeinflussung der Einzelseile bei einem Längenausgleich zu vermeiden, ist es von Vorteil, wenn die Umlenkscheiben einer Umlenkrolle relativ zueinander drehbar gehalten sind. Bei einer derartigen Ausführungsform können die Umlenkscheiben unabhängig voneinander rotieren, so daß bei einem Seillängenausgleich jeweils nur das betroffene Einzelseil bewegt wird, während die anderen Einzelseile des Seilstrangs keine Relativbewegung erfahren.In order to avoid a mutual influence of the individual ropes in a length compensation, it is advantageous if the deflecting pulleys of a deflection roller are rotatably supported relative to each other. In such an embodiment, the deflection pulleys can rotate independently, so that in a rope length compensation only the affected individual rope is moved, while the other individual ropes of the rope strand experience no relative movement.

Es kann vorgesehen sein, daß die Umlenkglieder an einem gemeinsamen Träger gehalten sind, der am Fahrkorb bzw. am Gegengewicht angeordnet ist.It can be provided that the deflecting members are held on a common carrier, which is arranged on the car or on the counterweight.

Alternativ kann vorgesehen sein, daß die Umlenkglieder jeweils an einem separaten Träger gehalten sind, der am Fahrkorb bzw. am Gegengewicht angeordnet ist. Die Träger können beispielsweise jeweils einen Lagerbock ausbilden, an dem ein Umlenkglied in Form einer Umlenkrolle frei drehbar gelagert ist.Alternatively, it may be provided that the deflecting members are each held on a separate carrier, which is arranged on the car or on the counterweight. The carriers can, for example, each form a bearing block, on which a deflection member in the form of a deflection roller is freely rotatably mounted.

Vorzugsweise sind die Umlenkglieder mittels eines Federelements am Fahrkorb bzw. am Gegengewicht gehalten. Das Federelement ermöglicht nicht nur den Ausgleich unterschiedlicher Seillängen und Seilspannungen, sondern sichert auch eine sehr schwingungsarme Lagerung des Fahrkorbs bzw. des Gegengewichts. Alternativ oder ergänzend kann vorgesehen sein, daß die Umlenkglieder mittels eines linearen Verstellsystems, zum Beispiel eines Kolben-Zylinderaggregats, am Fahrkorb bzw. am Gegengewicht gehalten sind. Durch Aktivierung des linearen Verstellsystems können die Umlenkglieder relativ zum Fahrkorb bzw. zum Gegengewicht bewegt werden.Preferably, the deflecting members are held by means of a spring element on the car or on the counterweight. The spring element not only allows the compensation of different cable lengths and cable tensions, but secures also a very low-vibration storage of the car or the counterweight. Alternatively or additionally, it can be provided that the deflecting members are held by means of a linear adjustment system, for example a piston-cylinder unit, on the car or on the counterweight. By activating the linear adjustment system, the deflecting members can be moved relative to the car or to the counterweight.

Von Vorteil ist es, wenn der gegenseitige Abstand der Umlenkglieder veränderbar ist. So kann beispielsweise vorgesehen sein, daß die Umlenkglieder jeweils über eine Seite des Fahrkorbs bzw. des Gegengewichts hervorstehen und senkrecht zu der durch die jeweilige Fahrkorb- bzw. Gegengewichtsseite definierten Ebene beweglich gehalten sind, um dadurch den Abstand zwischen den Umlenkgliedern zu verändern. Ebenso kann die Ausgleichsbewegung der Umlenkglieder auch in vertikaler Richtung erfolgen.It is advantageous if the mutual distance of the deflecting members is variable. Thus, for example, be provided that the deflecting members each protrude beyond a side of the car or the counterweight and are held perpendicular to the plane defined by the respective car or counterweight side plane, thereby changing the distance between the deflecting members. Likewise, the compensating movement of the deflecting members can also take place in the vertical direction.

Anstatt die Verbindungsglieder in Form von Umlenkgliedern auszubilden, ist bei einer vorteilhaften Ausführungsform der Erfindung vorgesehen, daß die Verbindungsglieder jeweils einen schwenkbar gelagerten Hebelarm ausbilden, an dem ein Seilstrang gehalten ist. Durch Schwenken des Hebelarmes kann auf konstruktiv einfache Weise ein Seillängenausgleich erzielt werden.Instead of forming the connecting links in the form of deflecting, is provided in an advantageous embodiment of the invention that the connecting members each form a pivotally mounted lever arm on which a cable strand is held. By pivoting the lever arm a rope length compensation can be achieved in a structurally simple way.

Weisen die Seilstränge mehrere Einzelseile auf, so ist es von Vorteil, wenn die Hebelarme mehrere Hebelarmelemente aufweisen, an denen jeweils ein Einzelseil gehalten ist. Dadurch kann ein unterschiedliches Dehnungsverhalten der Einzelseile eines Seilstrangs ausgeglichen werden.If the cable strands have a plurality of individual cables, then it is advantageous if the lever arms have a plurality of lever arm elements, on each of which a single cable is held. As a result, a different expansion behavior of the individual ropes of a rope strand can be compensated.

Bevorzugt sind die beiden Hebelarme starr miteinander verbunden und bilden eine Wippe aus. Die Wippe kann beispielsweise an einem vom Fahrkorb abstehenden Lagerbock gelagert sein.Preferably, the two lever arms are rigidly connected to each other and form a rocker. The rocker may for example be mounted on a stand projecting from the car bearing block.

Vorzugsweise ist die Wippe im Bereich einer vertikalen Mittelachse des Fahrkorbs bzw. des Gegengewichts schwenkbar gehalten. Bei einer derartigen Ausgestaltung ist die Wippe symmetrisch ausgebildet dergestalt, daß die beiden Hebelarme jeweils dieselbe Länge aufweisen.Preferably, the rocker is pivotally held in the region of a vertical center axis of the car or the counterweight. In such an embodiment, the rocker is formed symmetrically such that the two lever arms each have the same length.

Von besonderem Vorteil ist es, wenn die Einzelseile der beiden Seilstränge jeweils über eine Wippe miteinander gekoppelt sind. Die Einzelseile können jeweils an einem Seilspannungsausgleichselement an den Enden der Wippe angeordnet sein. Die Seilspannungsausgleichselemente können beispielsweise als einteilige oder mehrteilige Feder ausgestaltet sein.It is particularly advantageous if the individual cables of the two cable strands are each coupled to one another via a rocker. The individual cables can each be arranged on a cable tension compensation element at the ends of the rocker. The cable tension compensation elements can be configured, for example, as a one-piece or multi-part spring.

Es kann vorgesehen sein, daß die beiden Seilstränge eine unterschiedliche Anzahl von Einzelseile aufweisen. Eine derartige Ausgestaltung kann insbesondere bei hohen Schächten von Vorteil sein. Günstig ist es, wenn eine Wippe zum Einsatz kommt, die in Richtung des Seilstrangs mit der größeren Anzahl von Einzelseilen versetzt zur vertikalen Mittelachse des Fahrkorbs bzw. des Gegengewichts schwenkbar gehalten ist. Der Seilstrang mit der größeren Anzahl von Einzelseilen ist somit an einem kürzeren Hebelarm gehalten als der Seilstrang mit der geringeren Anzahl von Einzelseilen. Somit kann trotz unterschiedlicher Anzahl von Einzelseilen auf einfache Weise ein Seillängenausgleich und damit auch ein Zugausgleich zwischen den Seilsträngen erzielt werden.It can be provided that the two cable strands have a different number of individual cables. Such a configuration may be particularly advantageous for high shafts. It is advantageous if a rocker is used, which is held in the direction of the cable strand with the larger number of individual cables offset from the vertical center axis of the car or the counterweight pivotally. The rope strand with the larger number of individual ropes is thus held on a shorter lever arm than the rope strand with the smaller number of individual ropes. Thus, despite a different number of individual ropes in a simple way a rope length compensation and thus a train compensation between the rope strands can be achieved.

Vorzugsweise ist die Schwenkbewegung der Wippe mittels eines Sensors überwachbar. Hierzu kann insbesondere ein berührungsloser Sensor, beispielsweise ein Magnetfeldsensor, vorzugsweise ein Hallsensor, zum Einsatz kommen oder auch ein üblicher Inkrementalgeber, der mit der Schwenkachse der Wippe gekoppelt ist. Es kann auch die Annäherung eines Hebelarmes der Wippe an den Fahrkorb überwacht werden, indem der Abstand zwischen dem Hebelarm und dem Fahrkorb mittels eines Sensors erfasst wird.Preferably, the pivoting movement of the rocker can be monitored by means of a sensor. For this purpose, in particular a non-contact sensor, for example a magnetic field sensor, preferably a Hall sensor, can be used or else a conventional incremental encoder which is coupled to the pivot axis of the rocker. It can also be the approach of a lever arm of the Rocker be monitored to the car by the distance between the lever arm and the car is detected by a sensor.

Um eine sehr starke Längenänderung eines der beiden Seilstränge erkennen zu können, ist es günstig, wenn bei Überschreiten eines vorgegebenen Schwenkwinkels der Wippe oder eines vorgegebenen Abstandes zwischen Hebelarm und Fahrkorb vom Sensor ein Steuersignal ausgebbar ist. Das Steuersignal kann einer Aufzugsteuerung der Aufzuganlage bereitgestellt werden kann, so daß die Aufzugsteuerung bei Vorliegen des Steuersignals ein optisches oder akustisches Warnsignal ausgeben kann, um dem Benutzer anzuzeigen, daß die beiden Seilstränge eine sehr unterschiedliche Seillänge aufweisen, beispielsweise aufgrund einer längeren Nutzungsdauer der Seilstränge.In order to recognize a very strong change in length of the two cable strands, it is advantageous if a control signal can be output from the sensor when a predetermined pivoting angle of the rocker or a predetermined distance between the lever arm and the car is exceeded. The control signal may be provided to an elevator controller of the elevator system so that the elevator controller may issue a visual or audible warning signal upon the presence of the control signal to indicate to the user that the two cable strands have a very different cable length, for example due to a longer service life of the cable strands.

Bei einer besonders bevorzugten Ausführungsform der Erfindung sind die beiden Verbindungsglieder jeweils als schwenkbar gelagerte Winkelhebel ausgestaltet mit einem ersten Seitenarm und einem winklig, vorzugsweise rechtwinklig zu diesem ausgerichteten zweiten Seitenarm, wobei am ersten Seitenarm ein Seilstrang gehalten ist und die zweiten Seitenarme über ein Kopplungsglied miteinander verbunden sind. Die ersten Seitenarme können jeweils über eine Seitenwand des Fahrkorbs bzw. des Gegengewichts vorstehen und in einander entgegengerichtete Richtungen weisen, wobei jeweils dem freien Ende des ersten Seitenarms benachbart ein Seilstrang gehalten ist. Der Seilstrang kann starr mit dem jeweiligen Seitenarm verbunden sein. Von besonderem Vorteil ist es allerdings, wenn der Seilstrang über ein Seilspannungsausgleichselement, insbesondere ein Federelement, am ersten Seitenarm festgelegt ist. Die zweiten Seitenarme können vertikal ausgerichtet sein, wobei sie über das Kopplungsglied miteinander verbunden sind.In a particularly preferred embodiment of the invention, the two connecting members are each configured as pivotally mounted angle lever with a first side arm and an angle, preferably oriented at right angles to this second side arm, wherein the first side arm a cable strand is held and the second side arms connected to each other via a coupling member are. The first side arms may each protrude beyond a side wall of the car or counterweight and may face in opposite directions, with each of the free ends of the first side arm adjacent to a cable strand. The cable strand can be rigidly connected to the respective side arm. It is particularly advantageous, however, if the cable strand is fixed to the first side arm via a cable tension compensation element, in particular a spring element. The second side arms may be vertically aligned with each other via the coupling member.

Das Kopplungsglied kann ein Federelement umfassen, das zwischen die zweiten Seitenarme eingespannt ist.The coupling member may comprise a spring element which is clamped between the second side arms.

Alternativ oder ergänzend kann vorgesehen sein, daß das Kopplungsglied ein lineares Verstellsystem aufweist, so daß die zweiten Seitenarme beispielsweise elektrisch, mechanisch, pneumatisch oder hydraulisch miteinander gekoppelt sind.Alternatively or additionally, it can be provided that the coupling member has a linear adjustment system, so that the second side arms, for example, electrically, mechanically, pneumatically or hydraulically coupled to each other.

Weisen die Seilstränge mehrere Einzelseile auf, so ist es günstig, wenn die Winkelhebel jeweils mehrere Winkelhebelelemente mit einem ersten und einem zweiten Seitenarm umfassen, wobei jeweils an einem ersten Seitenarm eines Winkelhebelelements, vorzugsweise über ein Seilspannungsausgleichselement, ein Einzelseil gehalten ist und die zweiten Seitenarme zweier Winkelhebelelemente über jeweils eigene Kopplungsglieder miteinander verbunden sind. Unterschiedlichen Seillängen von Einzelseilen kann damit besonders wirkungsvoll entgegengewirkt werden. Vorzugsweise sind die Winkelhebelelemente zueinander schwenkbar gehalten.If the cable strands have several individual cables, then it is favorable if the angle levers each comprise a plurality of angle lever elements with a first and a second side arm, wherein a single cable is held on a first side arm of an angle lever element, preferably via a cable tension compensation element, and the second side arms of two Angle lever elements are connected to each other via their own coupling members. Different cable lengths of single ropes can thus be counteracted particularly effectively. Preferably, the angle lever elements are held pivotally to each other.

Die nachfolgende Beschreibung bevorzugter Ausführungsformen der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:

Figur 1:
eine schematische Darstellung einer ersten Ausführungsform einer erfindungsgemäßen Aufzuganlage;
Figur 2:
eine schematische Darstellung einer zweiten Ausführungsform einer erfindungsgemäßen Aufzuganlage;
Figuren 3 bis 9:
ausschnittsweise schematische Darstellungen von dritten bis neunten Ausführungsformen der erfindungsgemäßen Aufzuganlage.
The following description of preferred embodiments of the invention is used in conjunction with the drawings for further explanation. Show it:
FIG. 1:
a schematic representation of a first embodiment of an elevator system according to the invention;
FIG. 2:
a schematic representation of a second embodiment of an elevator system according to the invention;
FIGS. 3 to 9:
partial schematic representations of third to ninth embodiments of the elevator installation according to the invention.

In Figur 1 ist eine Aufzuganlage 10 dargestellt mit einem Fahrkorb 12, der in einem Schacht 13 zur Beförderung von Personen und/oder Lasten verfahrbar ist und einen Fahrkorbrahmen 14 sowie eine Fahrkorbkabine 15 aufweist. Der Fahrkorb 12 ist in einem Aufhängungsverhältnis von 1:1 über zwei Seilstränge 17, 18 mit einem Gegengewicht 20 verbunden, wobei die Seilstränge 17, 18 über eine gemeinsame Treibscheibe 21 geführt sind, die mittels eines Antriebs 22 drehend antreibbar ist. Die Seilstränge 17 und 18 sind jeweils einer Fahrkorbseite 24 bzw. 25 zugeordnet.In FIG. 1 an elevator system 10 is shown with a car 12, which is movable in a shaft 13 for the transport of persons and / or loads and a car frame 14 and a car cabin 15 has. The car 12 is connected in a suspension ratio of 1: 1 via two cable strands 17, 18 with a counterweight 20, wherein the cable strands 17, 18 are guided over a common traction sheave 21 which is rotationally driven by means of a drive 22. The cable strands 17 and 18 are each associated with a car side 24 and 25 respectively.

An seiner Oberseite trägt der Fahrkorb eine Seillängenausgleichseinrichtung 30 mit zwei im Abstand zueinander angeordneten Verbindungsgliedern in Form zweier Umlenkrollen 32, 33, um die jeweils ein fahrkorbseitiger Endbereich der Seilstränge 17 bzw. 18 herumgeführt ist. Die beiden Umlenkrollen 32, 33 sind jeweils an einem Träger in Form eines starr mit dem Fahrkorb 12 verbundenen Lagerbockes 35 bzw. 36 frei drehbar gelagert. Zwischen den beiden Umlenkrollen 32, 33 sind die beiden Seilstränge 17, 18 einstückig miteinander verbunden.At its top, the car carries a cable length compensation device 30 with two spaced-apart connecting members in the form of two guide rollers 32, 33, around each of a car-side end portion of the cable strands 17 and 18 is guided around. The two guide rollers 32, 33 are each mounted on a support in the form of a rigidly connected to the car 12 bearing block 35 and 36 freely rotatable. Between the two pulleys 32, 33, the two cable strands 17, 18 are integrally connected.

Die Seilstränge 17, 18 sind auch im Bereich des Gegengewichts 20 einstückig miteinander verbunden und um eine oberseitig am Gegengewicht 20 frei drehbar gelagerte Gegengewichtsrolle 38 herumgeführt.The cable strands 17, 18 are also integrally connected to one another in the region of the counterweight 20 and guided around a counterweight roller 38 which is freely rotatably mounted on the upper side on the counterweight 20.

Tritt beispielsweise aufgrund einer längeren Nutzungsdauer von sehr langen Seilen oder auch einer unsymmetrischen Gewichtsbelastung des Fahrkorbs 12 eine unterschiedliche Dehnung der beiden Seilstränge 17, 18 auf, so kann die damit einhergehende Längenänderung über die einstückige Verbindung der beiden Seilstränge 17, 18 und deren Halterung am Fahrkorb 12 mittels der Umlenkrollen 32, 33 durch Verschiebung des Verbindungsbereiches der Seilstränge 17, 18 gegenüber dem Fahrkorb 12 ausgeglichen werden.Occurs, for example, due to a longer service life of very long ropes or a non-symmetrical weight load of the car 12, a different elongation of the two cable strands 17, 18, so may associated length change over the one-piece connection of the two cable strands 17, 18 and their support on the car 12 by means of the guide rollers 32, 33 by displacement of the connecting portion of the cable strands 17, 18 are compared with the car 12.

In Figur 2 ist eine zweite Ausführungsform einer insgesamt mit dem Bezugszeichen 40 belegten erfindungsgemäßen Aufzuganlage dargestellt. Diese ist ebenso wie die nachfolgend im einzelnen beschriebenen Ausführungsformen, die in den Figuren 3 bis 9 dargestellt sind, weitgehend identisch ausgestaltet wie die Aufzuganlage 10. Für identische Bauteile werden daher in den Figuren 2 bis 9 dieselben Bezugszeichen verwendet wie in Figur 1. Zur Vermeidung von Wiederholungen wird diesbezüglich auf die voranstehenden Erläuterungen Bezug genommen.In FIG. 2 shows a second embodiment of a total occupied by the reference numeral 40 elevator system according to the invention. This is as well as the embodiments described in detail below, in the FIGS. 3 to 9 are designed largely identically designed as the elevator system 10. For identical components are therefore in the FIGS. 2 to 9 the same reference numerals as in FIG. 1 , To avoid repetition, reference is made in this regard to the above explanations.

Die in der Figur 2 dargestellte Aufzuganlage 40 unterscheidet sich von der Aufzuganlage 10 dadurch, daß unterhalb der Fahrkorbkabine 15 eine Seillängenausgleichseinrichtung 42 angeordnet ist. Diese umfaßt Umlenkrollen 44 und 45, die jeweils frei drehbar an einem gemeinsamen Träger 47 gelagert sind, der über Federelemente 49, 50 an der Fahrkorbkabine 15 gehalten ist. Ein Fahrkorbrahmen, wie er bei der in Figur 1 dargestellten Aufzuganlage 10 zum Einsatz kommt, entfällt bei der Aufzuganlage 40.The in the FIG. 2 Lift system 40 shown differs from the elevator system 10 in that below the car cabin 15, a rope length compensation device 42 is arranged. This includes pulleys 44 and 45, which are each freely rotatably mounted on a common carrier 47, which is held by spring elements 49, 50 on the cab cage 15. A car frame, as at the in FIG. 1 shown elevator system 10 is used, is omitted in the elevator system 40th

Auch bei der Aufzuganlage 40 sind die Seilstränge 17, 18 im Bereich zwischen den Umlenkrollen 44 und 45 einstückig miteinander verbunden, wobei sie in diesem Bereich mit einer Arretiereinrichtung in Form einer Seilklemme 52 zusammenwirken. Mittels der Seilklemme 52 können die beiden Seilstränge 17, 18 relativ zur Fahrkorbkabine 15 unverschieblich gehalten werden, indem sie am Träger 47 fest geklemmt werden. Damit kann beispielsweise im Falle einer Betriebsstörung ein Längenausgleich zwischen den Seilsträngen 17 und 18 gezielt unterbunden werden, wodurch dann hilfsweise die Fahrkorbkabine 15 auch mit nur einem Seilstrang 17 oder 18 bewegt werden könnte.Also in the elevator system 40, the cable strands 17, 18 in the region between the guide rollers 44 and 45 integrally connected to each other, wherein they cooperate in this area with a locking device in the form of a cable clamp 52. By means of the cable clamp 52, the two cable strands 17, 18 are held relative to the car cage 15 immovable by being clamped firmly on the carrier 47. Thus, for example, in the case of a malfunction a length compensation between the cable strands 17 and 18 targeted be prevented, which then alternatively the car cabin 15 could be moved with only one strand of rope 17 or 18.

Von der Aufzuganlage 10 unterscheidet sich die Aufzuganlage 40 außerdem dadurch, daß die beiden Seilstränge 17 und 18 unmittelbar am Gegengewicht 20 festgelegt sind. Eine Gegengewichtrolle, wie sie bei der Aufzuganlage 10 zum Einsatz kommt, entfällt bei der Aufzuganlage 40.From the elevator system 10, the elevator system 40 also differs in that the two cable strands 17 and 18 are set directly on the counterweight 20. A counterweight roller, as used in the elevator installation 10, is omitted in the elevator installation 40.

In Figur 3 ist eine dritte Ausführungsform einer Aufzuganlage ausschnittsweise dargestellt, die insgesamt mit dem Bezugszeichen 60 belegt ist. Bei dieser Aufzuganlage kommen Seilstränge 61 und 62 zum Einsatz, die jeweils mehrere Einzelseile 63 bzw. 64 aufweisen. Entsprechend der in Figur 2 dargestellten Ausführungsform sind die Seilstränge 61 und 62 um unterseitig am Fahrkorb 12 gelagerte Umlenkrollen einer Seillängenausgleichseinrichtung 67 herumgeführt, wobei allerdings jedem Einzelseil 63 bzw. 64 eine separate Umlenkscheibe 65 bzw. 66 der Umlenkrollen zugeordnet ist. Die einzelnen Umlenkscheiben 65 und 66 sind relativ zueinander drehbar am Träger 47 gehalten, so daß jeweils zwischen zwei Einzelseilen 63 und 64 der beiden Seilstränge 61 bzw. 62 ein Längenausgleich erfolgen kann, ohne daß hiervon die anderen Einzelseile 63 bzw. 64 beeinflußt werden. Hierbei kann auch vorgesehen sein, daß jede Umlenkrolle und insbesondere jede Umlenkscheibe 65, 66 separat federnd gehalten ist. Die federnde Lagerung des Trägers 47 mittels der Federelemente 49, 50 ist dann nicht erforderlich.In FIG. 3 a third embodiment of an elevator system is shown in fragmentary form, which is occupied overall by the reference numeral 60. In this elevator installation cable strands 61 and 62 are used, each having a plurality of individual cables 63 and 64 respectively. According to the in FIG. 2 In the illustrated embodiment, the cable strands 61 and 62 are guided around deflecting rollers of a cable length compensation device 67 mounted on the underside of the car 12, wherein, however, each individual cable 63 or 64 is assigned a separate deflecting disk 65 or 66 of the deflecting rollers. The individual deflection disks 65 and 66 are held rotatably relative to one another on the carrier 47, so that a length compensation can take place between two individual cables 63 and 64 of the two cable strands 61 and 62, respectively, without the other individual cables 63 and 64 being influenced thereby. It can also be provided that each deflection roller and in particular each deflection pulley 65, 66 is held separately resilient. The resilient mounting of the carrier 47 by means of the spring elements 49, 50 is then not required.

In Figur 4 ist eine insgesamt mit dem Bezugszeichen 70 belegte vierte Ausführungsform einer erfindungsgemäßen Aufzuganlage mit einer Seillängenausgleichseinheit 74 dargestellt, bei der unterseitig am Fahrkorb 12 angeordnete Umlenkrollen 71 und 72 an einem Seillängenausgleichselement in Form eines hydraulischen Kolben-Zylinderaggregates 73 gehalten sind, das unterseitig am Fahrkorb 12 festgelegt ist. Das Kolben-Zylinderaggregat 73 bildet ein lineares Verstellsystem, mit dessen Hilfe die Umlenkrollen 71, 72 relativ zueinander in einander entgegengesetzte Richtungen versetzt werden können, um den Abstand zwischen den Umlenkrollen 71 und 72 zu verändern. Durch Veränderung dieses Abstands können Änderungen der Seillängen der Seilstränge 61, 62 gezielt ausgeglichen werden. Auch bei dieser Ausführungsform können die Umlenkrollen 71, 72, wie schon in Figur 3 gezeigt, aus einzelnen, gegeneinander drehbaren Umlenkscheiben bestehen, um die jeweils ein Einzelseil der Seilstränge 61, 62 herumgeführt ist. Jeweils eine Umlenkscheibe der Umlenkrolle 71 kann über ein Kolben-Zylinderaggregat 73 mit einer Umlenkscheibe der Umlenkrolle 72 gekoppelt sein, so daß die Seillängen der Einzelseile der Seilstränge 61, 62 individuell ausgeglichen werden können.In FIG. 4 is a total occupied by the reference numeral 70 fourth embodiment of an elevator system according to the invention with a rope length compensation unit 74 shown in the underside of the car 12 arranged pulleys 71 and 72 are held on a rope length compensation element in the form of a hydraulic piston-cylinder unit 73, the underside am Car 12 is set. The piston-cylinder assembly 73 forms a linear adjustment system by means of which the deflection rollers 71, 72 can be offset relative to each other in opposite directions in order to change the distance between the deflection rollers 71 and 72. By changing this distance changes in the cable lengths of the cable strands 61, 62 can be specifically compensated. Also in this embodiment, the pulleys 71, 72, as already in FIG. 3 shown, consist of individual, mutually rotatable deflecting wheels, around each of which a single rope of the cable strands 61, 62 is guided around. In each case, a deflection pulley of the deflection roller 71 may be coupled via a piston-cylinder assembly 73 with a deflection pulley of the guide roller 72, so that the cable lengths of the individual cables of the cable strands 61, 62 can be individually compensated.

In Figur 5 ist eine fünfte Ausführungsform einer insgesamt mit dem Bezugszeichen 80 belegten erfindungsgemäßen Aufzuganlage mit einer Seillängenausgleichseinrichtung 85 dargestellt, bei der zwei Umlenkrollen 81, 82 zum Einsatz kommen, die jeweils über ein Seilspannungsausgleichselement in Form eines Federelements 83 bzw. 84 an der Unterseite des Fahrkorbs 12 frei drehbar gelagert sind. Die Seilstränge 61, 62 sind im Bereich zwischen den Umlenkrollen 81 und 82 einstückig miteinander verbunden, so daß zwischen den Seilsträngen 61, 62 ein Längenausgleich während des Betriebs der Aufzuganlage 80 erfolgen kann. Die Lagerung der Umlenkrollen 81 und 82 mittels der Federelemente 83 bzw. 84 ermöglicht es, unterschiedlichen Seilspannungen der Seilstränge 61, 62 auf konstruktiv einfache Weise entgegenzuwirken. Wiederum können die Umlenkrollen 81, 82 einzelne, gegeneinander drehbare Umlenkscheiben aufweisen, um die jeweils ein Einzelseil der Seilstränge 61, 62 herumgeführt ist. Die einzelnen Umlenkscheiben können jeweils über ein separates Federelement 83, 84 am Fahrkorb 12 gelagert sein, so daß die Seilspannungen der Einzelseile individuell ausgeglichen werden können.In FIG. 5 shows a fifth embodiment of a generally designated by the reference numeral 80 inventive elevator system with a rope length compensation device 85, in which two pulleys 81, 82 are used, each free via a cable tension compensation element in the form of a spring element 83 and 84 at the bottom of the car 12 are rotatably mounted. The cable strands 61, 62 are integrally connected to each other in the area between the guide rollers 81 and 82, so that between the cable strands 61, 62 can be made a length compensation during operation of the elevator system 80. The storage of the guide rollers 81 and 82 by means of the spring elements 83 and 84 makes it possible to counteract different cable tensions of the cable strands 61, 62 in a structurally simple manner. Again, the pulleys 81, 82 may have individual, mutually rotatable deflection pulleys, around each of which a single rope of the cable strands 61, 62 is guided around. The individual deflecting disks can each be mounted on the car 12 via a separate spring element 83, 84, so that the cable tensions of the individual cables can be individually compensated.

Bei den voranstehend erläuterten Ausführungsformen der erfindungsgemäßen Aufzuganlage sind die beiden Seilstränge einstückig miteinander verbunden. Im Gegensatz hierzu ist in Figur 6 eine mit dem Bezugszeichen 90 belegte sechste Ausführungsform einer erfindungsgemäßen Aufzuganlage dargestellt mit einer Seillängenausgleichseinrichtung 107, bei der Seilstränge 91 und 92 endseitig über Seilspannungsausgleichselemente in Form von Federelementen 93 bzw. 94 an einem Hebelarm 95 bzw. 96 festgelegt sind. Die beiden Hebelarme 95, 96 sind einstückig miteinander verbunden und bilden eine Wippe 97 aus, die im Bereich einer vertikalen Mittelachse 98 des Fahrkorbs 12 um eine horizontal ausgerichtete Schwenkachse 99 schwenkbar an einem Träger 100 gelagert ist, der starr mit dem Fahrkorb 12 verbunden ist.In the above-described embodiments of the elevator installation according to the invention, the two cable strands are integrally connected to one another. In contrast, in FIG. 6 a sixth embodiment of an elevator system according to the invention shown with reference numeral 90 shown with a rope length compensation device 107, are fixed at the cable strands 91 and 92 at the end via cable tension compensation elements in the form of spring elements 93 and 94 on a lever arm 95 and 96, respectively. The two lever arms 95, 96 are integrally connected to each other and form a rocker 97, which is mounted in the region of a vertical center axis 98 of the car 12 about a horizontally oriented pivot axis 99 pivotally mounted on a carrier 100 which is rigidly connected to the car 12.

Die Seilstränge 91 und 92 weisen jeweils mehrere Einzelseile 101 bzw. 102 auf, und die Hebelarme 95 und 96 umfassen jeweils Hebelarmelemente 103 bzw. 104, an denen jeweils ein Einzelseil 101 bzw. 102 über ein Federelement 93 bzw. 94 festgelegt ist. Jeweils zwei Hebelarmelemente bilden ein Wippenelement 105 aus, das bezogen auf die restlichen Wippenelemente 105 am Träger 100 schwenkbar gelagert ist.The cable strands 91 and 92 each have a plurality of individual cables 101 and 102, respectively, and the lever arms 95 and 96 each comprise lever arm elements 103 and 104, respectively, to which a single cable 101 or 102 is fixed via a spring element 93 and 94, respectively. Two lever arm elements each form a rocker element 105, which is mounted pivotably relative to the remaining rocker elements 105 on the carrier 100.

Sämtliche Wippenelemente 105 wirken jeweils mit einem Drehwinkelgeber 106 zusammen, mit dessen Hilfe die Schwenkstellung des Wippenelements 105 erfaßbar ist und das bei Überschreiten eines maximal zulässigen und vorgebbaren Schwenkwinkels einer an sich bekannten und deshalb in der Zeichnung nicht dargestellten Aufzugsteuerung ein Steuersignal bereitstellt, so daß letztere bei Überschreiten des zulässigen Schwenkwinkels ein Warnsignal ausgeben kann.All rocker elements 105 each cooperate with a rotary encoder 106, by means of which the pivotal position of the rocker element 105 can be detected and which provides a control signal when a maximum permissible and predefinable swivel angle of a known per se and therefore not shown in the drawing, so that the latter If the permissible swivel angle is exceeded, a warning signal can be output.

Eine siebte Ausführungsform einer erfindungsgemäßen Aufzuganlage mit einer Seillängenausgleichseinrichtung 108 ist in Figur 7 ausschnittsweise dargestellt und insgesamt mit dem Bezugszeichen 110 belegt. Bei dieser Aufzuganlage kommen zwei Seilstränge 111 und 112 zum Einsatz, die eine unterschiedliche Anzahl von Einzelseilen 113 bzw. 114 aufweisen. Die Einzelseile 113 und 114 sind über Seilspannungsausgleichselemente in Form von Federelementen 115 bzw. 116 jeweils an einem Hebelarm 117 bzw. 118 festgelegt. Die Hebelarme 117 und 118 bilden jeweils ein Verbindungsglied der Seillängenausgleichseinrichtung 108 und sind schwenkbar am Träger 100 gelagert. Der Hebelarm 117, an dem der Seilstrang 111 mit der größeren Anzahl von Einzelseilen 113 federnd gehalten ist, ist kürzer als der Hebelarm 118, der die Einzelseile 114 des Seilstrangs 112 federnd lagert. Die beiden Hebelarme 117, 118 bilden eine Wippe 119 aus, die im Unterschied zu der in Figur 6 dargestellten Ausführungsform versetzt zur vertikalen Mittelachse 98 am Träger 100 schwenkbar gelagert ist. Somit kann mittels der Wippe 119 trotz des Einsatzes von Seilsträngen 111, 112 mit einer unterschiedlichen Anzahl von Einzelseilen 113 bzw. 114 auf konstruktiv einfache Weise eine gleich hohe Belastung und ein Längenausgleich der Seilstränge 111, 112 erzielt werden. Über die Federelemente 115 und 116 ist zusätzlich ein Ausgleich der in den Einzelseilen 113, 114 herrschenden Seilspannungen möglich.A seventh embodiment of an elevator installation according to the invention with a rope length compensation device 108 is shown in FIG FIG. 7 shown in detail and occupied by the reference numeral 110. In this elevator installation, two cable strands 111 and 112 are used which have a different number of individual cables 113 and 114, respectively. The individual cables 113 and 114 are fixed via cable tension compensation elements in the form of spring elements 115 and 116 respectively to a lever arm 117 and 118, respectively. The lever arms 117 and 118 each form a connecting member of the cable length compensation device 108 and are pivotally mounted on the carrier 100. The lever arm 117, on which the cable strand 111 is resiliently held with the larger number of individual cables 113, is shorter than the lever arm 118, which resiliently supports the individual cables 114 of the cable strand 112. The two lever arms 117, 118 form a rocker 119, in contrast to the in FIG. 6 illustrated embodiment offset from the vertical center axis 98 on the carrier 100 is pivotally mounted. Thus, by means of the rocker 119 in spite of the use of cable strands 111, 112 with a different number of individual ropes 113 and 114 in a structurally simple manner an equally high load and a length compensation of the cable strands 111, 112 can be achieved. Via the spring elements 115 and 116, compensation of the cable tensions prevailing in the individual cables 113, 114 is additionally possible.

In Figur 8 ist eine insgesamt mit dem Bezugszeichen 130 belegte achte Ausführungsform einer erfindungsgemäßen Aufzuganlage dargestellt, bei der eine Seillängenausgleichseinrichtung 131 zum Einsatz kommt, die zwei im Abstand zueinander angeordnete Verbindungsglieder in Form zweier Winkelhebel 133, 134 aufweist mit jeweils einem ersten Seitenarm 135 bzw. 136 und einem rechtwinklig zu diesem ausgerichteten zweiten Seitenarm 137 bzw. 138. Die Winkelhebel 133, 134 sind um horizontale Schwenkachsen 139 bzw. 140 schwenkbar an unterseitig am Fahrkorb 12 festgelegten Trägern 141 bzw. 142 gehalten. An den freien Enden der ersten Seitenarme 135, 136 ist jeweils ein Seilstrang 143 bzw. 144 festgelegt, und die zweiten Seitenarme 137, 138 sind über ein Kopplungsglied in Form einer Spannfeder 145 miteinander verbunden. Durch Schwenken der Winkelhebel 133, 134 kann ein unterschiedliches Dehnungsverhalten der beiden Seilstränge 143, 144 ausgeglichen werden, wobei mittels der Spannfeder 145 auch die Seilspannungen der beiden Seilstränge 143, 144 ausgeglichen werden.In FIG. 8 is an overall denoted by the reference numeral 130 eighth embodiment of an elevator system according to the invention is shown in which a rope length compensation device 131 is used, the two spaced apart connecting members in the form of two angle levers 133, 134 each having a first side arm 135 and 136 and a The angle levers 133, 134 are pivotable about horizontal pivot axes 139 and 140, respectively, on carriers 141 and 142 fixed to the underside of the car 12, respectively held. At the free ends of the first side arms 135, 136, a respective cable strand 143 and 144 is fixed, and the second side arms 137, 138 are connected to each other via a coupling member in the form of a tension spring 145. By pivoting the angle lever 133, 134, a different elongation behavior of the two cable strands 143, 144 can be compensated, by means of the tension spring 145 and the rope tension of the two cable strands 143, 144 are compensated.

In Figur 9 ist eine insgesamt mit dem Bezugszeichen 150 belegte neunte Ausführungsform einer erfindungsgemäßen Aufzuganlage mit einer Seillängenausgleichseinrichtung 164 dargestellt, bei der entsprechend der Aufzuganlage 130 zwei Winkelhebel 151 und 152 zum Einsatz kommen mit jeweils einem ersten Seitenarm 153 bzw. 154 und einem zweiten Seitenarm 155 bzw. 156. Wiederum ist an den ersten Seitenarmen 153, 154 jeweils ein Seilstrang 157 bzw. 158 festgelegt. Im Gegensatz zur Aufzuganlage 130 sind jedoch die zweiten Seitenarme 155, 156 nicht über eine Spannfeder sondern über ein lineares Verstellsystem in Form eines hydraulischen Kolben-Zylinderaggregats 159 miteinander gekoppelt. Außerdem sind die beiden Winkelhebel 151, 152 an einem gemeinsamen Träger 160 gelagert, der im wesentlichen U-förmig ausgebildet ist und zwei am Fahrkorb 12 festgelegte Tragarme 161, 162 aufweist, die über einen Tragsteg 163 einstückig miteinander verbunden sind. Das Kolben-Zylinderaggregat 159 ist zwischen den beiden Tragarmen 161, 162 gehalten und wird somit oberseitig vom Fahrkorb 12 und unterseitig vom Tragsteg 163 abgedeckt. Es bildet ein Seillängenausgleichselement zum Ausgleich unterschiedlicher Seillängen der Seilstränge 157, 158.In FIG. 9 a ninth embodiment of an elevator installation according to the invention with a cable length compensation device 164 is shown in which, corresponding to the elevator installation 130, two angle levers 151 and 152 are used, each with a first side arm 153 or 154 and a second side arm 155 or 156 Once again, a cable strand 157 or 158 is fixed to the first side arms 153, 154. In contrast to the elevator system 130, however, the second side arms 155, 156 are not coupled to one another via a tension spring but via a linear adjustment system in the form of a hydraulic piston-cylinder unit 159. In addition, the two angle levers 151, 152 are mounted on a common carrier 160, which is formed substantially U-shaped and two fixed to the car 12 support arms 161, 162, which are integrally connected via a support web 163. The piston-cylinder unit 159 is held between the two support arms 161, 162 and is thus covered on the top side by the car 12 and on the underside by the support web 163. It forms a rope length compensation element to compensate for different cable lengths of the cable strands 157, 158th

Auch bei den Seillängenausgleichseinrichtungen 131 und 164 können die Seilstränge 143, 144 bzw. 157, 158 mehrere Einzelseile aufweisen, denen jeweils ein separater Winkelhebel 133, 134 bzw. 151, 152 zugeordnet ist, wobei jeweils ein Winkelhebel 133 bzw. 151 über ein separates Kopplungsglied 145 oder 159 mit einem zugeordneten Winkelhebel 134 bzw. 152 gekoppelt ist. Somit können auch bei den in den Figuren 8 und 9 dargestellten Ausführungsformen die Seillängen von Einzelseilen der Seilstränge 143, 144 bzw. 157, 158 unabhängig von den Seillängen der restlichen Einzelseile ausgeglichen werden. Insbesondere bei der in Figur 9 dargestellten Seillängenausgleichseinrichtung 164 kann außerdem vorgesehen sein, daß die Einzelseile der Seilstränge 157, 158 jeweils über ein Federelement, wie es beispielsweise in Figur 6 dargestellt und mit den Bezugszeichen 93, 94 belegt ist, am jeweiligen Winkelhebel 151 bzw. 152 gehalten sind. Die Federelemente ermöglichen einen Ausgleich der Seilspannungen der Einzelseile.Also in the cable length compensation devices 131 and 164, the cable strands 143, 144 and 157, 158 may comprise a plurality of individual cables, each of which is assigned a separate angle lever 133, 134 and 151, 152, respectively an angle lever 133 or 151 is coupled via a separate coupling member 145 or 159 with an associated angle lever 134 or 152. Thus, also in the in the FIGS. 8 and 9 illustrated embodiments, the cable lengths of individual cables of the cable strands 143, 144 and 157, 158 are compensated regardless of the pitch of the remaining individual ropes. Especially at the in FIG. 9 shown rope length compensation device 164 may also be provided that the individual cables of the cable strands 157, 158 each have a spring element, as for example in FIG. 6 shown and occupied by the reference numerals 93, 94, are held at the respective angle lever 151 and 152, respectively. The spring elements allow a balance of the rope tensions of the individual ropes.

Claims (37)

  1. Elevator installation with at least one car (12), which can be made to travel in a shaft (13) and is connected to a counterweight (20) by means of two cable strands (17, 18; 61, 62; 91, 92; 111, 112; 143, 144; 157, 158), which are associated with different sides (24, 25) of the car (12), and with a traction sheave (21), which can be driven by a motor and over which the two cable strands (17, 18; 61, 62; 91, 92; 111, 112; 143, 144; 157, 158) are led, the car (12) being kept in a suspension ratio of 1:1, characterized in that the two cable strands (17, 18; 61, 62; 91, 92; 111, 112; 143, 144; 157, 158) are coupled to each other by means of a cable length equalizing device (30; 42; 67; 74; 85; 107; 108; 131; 164) disposed on the car (12) and/or on the counterweight (20).
  2. Elevator installation according to Claim 1, characterized in that the cable length equalizing device (30; 42; 67; 74; 85; 107; 108; 131; 164) is disposed above or below the car (12) or the counterweight (20).
  3. Elevator installation according to Claim 1 or 2, characterized in that the cable length equalizing device (30; 42; 67; 74; 85; 107; 108; 131; 164) has two connecting links (32, 33; 44, 45; 71, 72; 81, 82; 95, 96; 117, 118; 133, 134; 151, 152), by means of which the two cable strands (17, 18; 61, 62; 91, 92; 111, 112; 143, 144; 157, 158) are operatively connected to the car (12) or the counterweight (20), the cable strands (17, 18; 61, 62; 91, 92; 111, 112; 143, 144; 157, 158) being coupled to each other between the two connecting links (32, 33; 44, 45; 71, 72; 81, 82) or by means of the two connecting links (95, 96; 117, 118; 133, 134; 151, 152).
  4. Elevator installation according to Claim 3, characterized in that the cable strands (61, 62; 91, 92; 111, 112) have a number of individual cables (63, 64; 101, 102; 113, 114) and the connecting links (44, 45; 95, 96) comprise a number of connecting elements (65, 66; 103, 104), each individual cable (63, 64; 101, 102) being associated with a connecting element (65, 66; 103, 104) and individual cables (63, 64; 101, 102) of the two cable strands (61, 62; 91, 92) being coupled to each other between the respective connecting elements (65, 66) or by means of the respective connecting elements (103, 104).
  5. Elevator installation according to Claim 3 or 4, characterized in that an arresting device (52) is disposed between the connecting links (44, 45) for the non-displaceable securement of the cable strands (17, 18) in relation to the car (12) or the counterweight (20).
  6. Elevator installation according to Claim 5, characterized in that the arresting device comprises a cable clamp (52).
  7. Elevator installation according to one of Claims 3 to 6, characterized in that at least one cable tension equalizing element (49, 50; 83, 84; 93, 94; 115, 116) is associated with the connecting links (44, 45; 71, 72; 81, 82; 95, 96; 117, 118; 133, 134; 151, 152) for equalizing the cable tensions prevailing in the cable strands (17; 18; 61; 62; 91, 92; 111, 112).
  8. Elevator installation according to Claim 7, characterized in that the cable strands (91, 92; 111, 112) have a number of individual cables (101, 102; 113, 114) and the connecting links (95, 96; 117, 118) have a number of associated cable tension equalizing elements (93, 94; 115, 116) for equalizing the cable tensions prevailing in the individual cables (101, 102; 113, 114).
  9. Elevator installation according to Claim 7 or 8, characterized in that at least one cable tension equalizing element (93, 94; 115, 116) is disposed between a cable strand (91, 92; 111, 112) and a connecting link (95, 96; 117, 118).
  10. Elevator installation according to Claim 7, 8 or 9, characterized in that at least one cable tension equalizing element (49, 50; 83, 84) is disposed between a connecting link (44, 45; 71, 72; 81, 82) and the car (12) or the counterweight (20).
  11. Elevator installation according to one of Claims 7 to 10, characterized in that the cable tension equalizing element comprises a spring element (49, 50; 83, 84; 93, 94; 115, 116).
  12. Elevator installation according to one of Claims 3 to 11, characterized in that the two connecting links (71; 72; 133, 134; 151, 152) are coupled to each other by means of a cable length equalizing element (73; 145; 159).
  13. Elevator installation according to Claim 12, characterized in that the cable length equalizing element comprises a linear adjusting system (73; 145; 159).
  14. Elevator installation according to one of Claims 3 to 13, characterized in that the connecting links (32, 33; 44, 45; 71, 72; 81, 82) are disposed at a distance from each other and the two cable strands (17, 18; 61, 62) are connected to each other between the connecting links (32, 33; 44, 45; 71, 72; 81, 82).
  15. Elevator installation according to one of Claims 3 to 14, characterized in that the connecting links are configured as deflecting elements (32, 33; 44, 45; 71, 72; 81, 82), which are disposed at a distance from each other and around which a cable strand (17, 18; 61, 62) is respectively led.
  16. Elevator installation according to Claim 15, characterized in that the deflecting elements are configured as freely rotatable deflecting rollers (32, 33; 44, 45; 71, 72; 81, 82).
  17. Elevator installation according to Claim 16, characterized in that the two cable strands (61, 62) have a number of individual cables (63, 64) and the deflecting rollers (44, 45) comprise a number of deflecting sheaves (65, 66), each individual cable (63, 64) being led around a separate deflecting sheave (65, 66).
  18. Elevator installation according to Claim 17, characterized in that the deflecting sheaves (65, 66) of a deflecting roller (44, 45) are held rotatably in relation to each other.
  19. Elevator installation according to one of Claims 15 to 18, characterized in that the deflecting elements (44, 45; 71, 72) are held on a common carrier (47; 73), which is disposed on the car (12) or on the counterweight (20).
  20. Elevator installation according to one of Claims 15 to 18, characterized in that the deflecting elements (32, 33; 81, 82) are respectively held on a separate carrier (35, 36; 83, 84), which is disposed on the car (12) or on the counterweight (20).
  21. Elevator installation according to one of Claims 15 to 20, characterized in that the deflecting elements (44, 45; 81, 82) are held on the car (12) or on the counterweight (20) by means of a spring element (49, 50; 83, 84).
  22. Elevator installation according to one of Claims 15 to 21, characterized in that the deflecting elements (71, 72) are held on the car (12) or on the counterweight (20) by means of a linear adjusting system (73).
  23. Elevator installation according to one of Claims 15 to 22, characterized in that the distance between the deflecting elements (71, 72) can be changed.
  24. Elevator installation according to Claim 23, characterized in that the distance between the deflecting elements (71, 72) can be changed by means of a linear adjusting system (73).
  25. Elevator installation according to one of Claims 3 to 13, characterized in that the connecting elements respectively form a pivotably mounted lever arm (95, 96; 117, 118), on which a cable strand (91, 92; 111, 112) is held.
  26. Elevator installation according to Claim 25, characterized in that the lever arms (95, 96) have a number of lever arm elements (103, 104), on each of which an individual cable (101, 102) of the cable strand (91, 92) is held.
  27. Elevator installation according to Claim 26, characterized in that the lever arm elements (103, 104) of each lever arm (95, 96) are pivotably held in relation to each other.
  28. Elevator installation according to Claim 25, 26 or 27, characterized in that the lever arms (95, 96; 117, 118) are rigidly connected to each other and form a rocker (97; 119).
  29. Elevator installation according to Claim 28, characterized in that the rocker (97) is pivotably held in the region of a vertical centre axis (98) of the car (12) or of the counterweight (20).
  30. Elevator installation according to Claim 28, characterized in that the two cable strands (111, 112) have a different number of individual cables (113, 114) and the rocker (119) is pivotably held offset in the direction of the cable strand (111) with the greater number of individual cables (113) in relation to the vertical centre axis (98) of the car (12) or of the counterweight (20).
  31. Elevator installation according to Claim 28, 29 or 30, characterized in that the pivoting movement of the rocker (97) can be monitored by means of a sensor (106).
  32. Elevator installation according to Claim 31, characterized in that a control signal can be output by the sensor (106) when a predetermined pivoting angle of the rocker (97) is exceeded.
  33. Elevator installation according to one of Claims 3 to 13, characterized in that the two connecting links are configured as pivotably mounted angle levers (133, 134; 151, 152), with a first side arm (135, 136; 153, 154) and a second side arm (137, 138; 155, 156) aligned at an angle to said first side arm, a cable strand (143, 144; 157, 158) being held on the first side arm (135, 136; 153, 154) and the second side arms (137, 138; 155, 156) being connected to each other by means of a coupling link (145; 159).
  34. Elevator installation according to Claim 33, characterized in that the coupling link comprises a spring element (145).
  35. Elevator installation according to Claim 33 or 34, characterized in that the coupling link comprises a linear adjusting system (159).
  36. Elevator installation according to Claim 33, 34 or 35, characterized in that the cable strands (143, 144; 157, 158) comprise a number of individual cables and the angle levers (133, 134; 151, 152) have a number of angle lever elements with a first and a second side arm, an individual cable being respectively held on a first side arm of an angle lever element and the second side arms of two angle lever elements being connected to each other by means of a coupling link.
  37. Elevator installation according to Claim 36, characterized in that the angle lever elements are pivotably held in relation to each other.
EP05005443A 2005-03-12 2005-03-12 Elevator Not-in-force EP1700811B1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP05005443A EP1700811B1 (en) 2005-03-12 2005-03-12 Elevator
ES05005443T ES2399095T3 (en) 2005-03-12 2005-03-12 Elevator installation
BRPI0520111-0A BRPI0520111A2 (en) 2005-03-12 2005-10-28 elevator system
JP2008500055A JP2008532880A (en) 2005-03-12 2005-10-28 Elevator equipment
KR1020077020871A KR101011644B1 (en) 2005-03-12 2005-10-28 Elevator
RU2007137627/11A RU2410321C2 (en) 2005-03-12 2005-10-28 Elevator installation
CN2005800490635A CN101142136B (en) 2005-03-12 2005-10-28 Elevator
PCT/EP2005/011541 WO2006097138A1 (en) 2005-03-12 2005-10-28 Elevator
MX2007011133A MX2007011133A (en) 2005-03-12 2005-10-28 Elevator.
TW095107867A TWI295271B (en) 2005-03-12 2006-03-09 Elevator installation
US11/899,990 US20080060884A1 (en) 2005-03-12 2007-09-07 Elevator installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05005443A EP1700811B1 (en) 2005-03-12 2005-03-12 Elevator

Publications (2)

Publication Number Publication Date
EP1700811A1 EP1700811A1 (en) 2006-09-13
EP1700811B1 true EP1700811B1 (en) 2013-01-09

Family

ID=34934240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05005443A Not-in-force EP1700811B1 (en) 2005-03-12 2005-03-12 Elevator

Country Status (11)

Country Link
US (1) US20080060884A1 (en)
EP (1) EP1700811B1 (en)
JP (1) JP2008532880A (en)
KR (1) KR101011644B1 (en)
CN (1) CN101142136B (en)
BR (1) BRPI0520111A2 (en)
ES (1) ES2399095T3 (en)
MX (1) MX2007011133A (en)
RU (1) RU2410321C2 (en)
TW (1) TWI295271B (en)
WO (1) WO2006097138A1 (en)

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Also Published As

Publication number Publication date
CN101142136A (en) 2008-03-12
KR20080003785A (en) 2008-01-08
TWI295271B (en) 2008-04-01
TW200702276A (en) 2007-01-16
KR101011644B1 (en) 2011-01-28
RU2410321C2 (en) 2011-01-27
ES2399095T3 (en) 2013-03-25
BRPI0520111A2 (en) 2009-04-22
US20080060884A1 (en) 2008-03-13
CN101142136B (en) 2010-11-17
WO2006097138A1 (en) 2006-09-21
JP2008532880A (en) 2008-08-21
MX2007011133A (en) 2007-10-23
EP1700811A1 (en) 2006-09-13
RU2007137627A (en) 2009-04-20

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