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EP1390284A1 - Device for determining the position of a rail-guided elevator car with a code support - Google Patents

Device for determining the position of a rail-guided elevator car with a code support

Info

Publication number
EP1390284A1
EP1390284A1 EP02727141A EP02727141A EP1390284A1 EP 1390284 A1 EP1390284 A1 EP 1390284A1 EP 02727141 A EP02727141 A EP 02727141A EP 02727141 A EP02727141 A EP 02727141A EP 1390284 A1 EP1390284 A1 EP 1390284A1
Authority
EP
European Patent Office
Prior art keywords
code
guide rail
receiving groove
code carrier
elevator car
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02727141A
Other languages
German (de)
French (fr)
Other versions
EP1390284B1 (en
Inventor
René Kunz
Eric Birrer
Matthias Lorenz
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.)
Inventio AG
Original Assignee
Inventio AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP02727141A priority Critical patent/EP1390284B1/en
Publication of EP1390284A1 publication Critical patent/EP1390284A1/en
Application granted granted Critical
Publication of EP1390284B1 publication Critical patent/EP1390284B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/02—Guideways; Guides
    • B66B7/022—Guideways; Guides with a special shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3492—Position or motion detectors or driving means for the detector

Definitions

  • the invention relates to a device for determining the absolute position of a rail-guided elevator car according to the definition of the claims.
  • Such position sensors are known. In elevator systems, these are used to determine the absolute position of an elevator car and to derive information signals therefrom for the control of the elevator system.
  • the position information is fixed in a coded form along the entire travel path of the elevator car and is read in coded form by means of a code reading device and processed in a control-understandable manner in an evaluation device.
  • a device is known from German utility model G 92 10 996.9, in which a magnetic strip is attached laterally to a cabin guide rail as a code carrier.
  • the magnetic stripe contains a length coding and coded information about stops or the like in the direction of displacement of the elevator car.
  • a magnetic head attached to the elevator car and movable with it in the direction of the coding relative to the magnetic strip reads the coded information and forwards it for evaluation.
  • Disadvantages of the known device consist in the hitherto usual attachment of the magnetic strip on or on the cabin guide rail, as well as in the design of the Magnetic stripe itself.
  • the magnetic stripe must be mounted on the guide rail in the correct position and without overstretching, in order to avoid falsifying the coding and resulting inaccuracies in the positioning of the elevator car.
  • uneven thermal expansions of the magnetic tape compared to the cabin guide rail occur, which results in a relative displacement of the. Coding to the guide rail.
  • the exposed position of the magnetic stripe on the side of the guide rail also harbors the risk of mechanical damage to the magnetic stripe due to parts moving in the shaft, such as the magnetic head when horizontal movements of the elevator car occur.
  • the known magnetic tape is clogged with lubricating oil and dust particles whirled up in the shaft, which impairs the reading of the coding.
  • the object of the invention is to provide a low-maintenance position transmitter device for elevators, which ensures permanent, exact reading of the absolute coding.
  • the non-magnetic cover also acts as a mechanical one Reinforcement for the code carrier and thereby prevents the coding from being falsified by uneven stretching of the code carrier in the reading direction.
  • a further increase in the reliability and accuracy of the position determination can be achieved with a code carrier, which is designed as a magnetic tape carrying the coding and a non-agnizable cover firmly connected thereto, in the form of a metallic masking tape.
  • a code carrier which is designed as a magnetic tape carrying the coding and a non-agnizable cover firmly connected thereto, in the form of a metallic masking tape.
  • a favorable heat balance between the code carrier and the guide rail is achieved with such a code carrier. This counteracts the temperature-related, unequal thermal expansions that occur over the length of the code carrier with respect to the guide rail, or evenens the expansion differences that occur.
  • the code carrier is inserted into a receiving groove of the guide rail with the cover facing outward.
  • the receiving groove enables simple and exact assembly of the code carrier because it can only be inserted into the constructively provided receiving groove without additional aids.
  • the magnetic tape carrying the coding is covered on all sides for protection.
  • the code carrier inserted in the receiving groove is embedded in the guide rail and covered on the outside by the cover and therefore essentially assumes its temperature. There are therefore no temperature-related differences in expansion between the code carrier and the guide rail.
  • the receiving groove is expediently formed on the end face of a guide flange of the cabin guide rail.
  • the production of the receiving groove is simple and the code carrier is very easily accessible for reading the coding for the code reading device.
  • a compact and space-saving design of the elevator is possible in an embodiment in which the receiving groove is formed on the side of a guide flange of the car guide rail. This arrangement also favors an exact reading of the coding with the aid of the code reading device.
  • cover is designed as a band with essentially two mutually parallel surfaces and side boundaries, with at least the side boundaries projecting laterally beyond the code carrier, and advantages with regard to a quick and exact assembly of the code carrier and the manufacture of the device according to the invention
  • Groove flanks of the receiving groove are complementary to the side boundaries of the masking tape.
  • the code carrier is preferably attached to the guide rail in a magnetically self-adhesive manner. This enables easy and time-saving assembly. At the same time, the code carrier lies directly on the guide rail and promotes heat transfer between the two. The code carrier follows all movements of the guide rail without the connection becoming detached or the code carrier experiencing local swellings.
  • the receiving groove lies in a region of the guide flange which is subject to high dynamic stresses when the elevator car is moving. In order to avoid notch stresses arising from the receiving groove in this area, it is expedient to machine the foot area of the guide flange by hot rolling.
  • Figure 1 schematically an elevator with an embodiment of the position transmitter device according to the invention
  • Figure 2a a first embodiment of the magnetic tape according to the invention and its attachment to the guide rail in section according to section line II-II in Fig. 1
  • Figure 2b a second embodiment of the magnetic tape and its attachment to the side
  • FIG. 2b Figure 3c, a third embodiment of the magnetic tape and its attachment to the guide rail;
  • Figure 4a a fourth embodiment of a receiving groove on the side of the guide rail;
  • Figure 4b a fifth embodiment of the receiving groove on the side of the guide rail;
  • FIG. 5 a detailed view V of the receiving groove from Fig. 4b.
  • Fig. 1 shows an elevator with a shaft 1, in which an elevator car 2 and a counterweight 3 are suspended on a common support cable 4.
  • the supporting cable 4 is guided over a non-driven deflection roller 5 and a driven traction sheave 6 and is driven by the latter.
  • the traction sheave 6 transmits the driving forces of a drive motor, not shown here, for lifting and lowering the elevator car 2 and the counterweight 3 to the supporting cable 4 driven by it.
  • the elevator car 2 can be displaced vertically along a guide rail 7.
  • a code tape 9 is attached along the guide rail 7 parallel to the direction of movement 8 of the elevator car 2. In the direction of movement 8 of the elevator car 2, the code tape 9 contains coded length or position information and coded information about stops or the like.
  • the coded information is read from a sensor head 10 and passed on to the evaluation unit 11.
  • the sensor head 10 is arranged on the elevator car 2 and is moved together with the latter along the code band 9.
  • the sensor head 10 is equipped with suitable sensors. Suitable for this purpose are, for example, Hall sensors, induction transmitters or — as in the exemplary embodiment shown — magnetoresitive sensors that detect the magnetic field direction, so-called MR sensors. Either several individual and / or a group of different sensors can be provided from each of these sensors.
  • the coded information read from the sensor head 10 is forwarded to an evaluation unit 11.
  • the evaluation unit 11 translates the coded information into a form that is understandable for the elevator control 12, before it is forwarded, for example, to the elevator control 12 via a hanging cable 13 for positioning the elevator car 2.
  • the code tape 9 consists of a magnetic tape 14 and a metallic masking tape 15.
  • the magnetic tape 14 is glued centrally to the metallic cover tape 15, the cover tape 15 projecting beyond the magnetic tape 14 on both sides.
  • the magnetic tape 14 is inserted into a receiving groove 16 on the end face 17 of the guide flange 18 of the guide rail 7 and is covered towards the shaft 1 by the metallic cover tape 15.
  • the magnetic tape 14 consists of vulcanized nitrile rubber as a binder, in which aligned barium ferrite is embedded.
  • the magnetic tape can be formed from a plastic or rubber material in which any magnetizable material can be embedded.
  • the magnetizable material is magnetized in an alternating order in the form of sections extending transversely to the longitudinal direction of the magnetic tape, either as a magnetic north pole or as a magnetic south pole.
  • the magnetized sections form correspondingly oriented magnetic fields on the outside and represent the code marks of the magnetic tape 14.
  • two different values "0" and "1" can thus be represented as basic components of the coding.
  • the non-magnetic metallic cover 15 is for protection against mechanical damage of the "magnetic tape 14 by the shaft 1 of moving parts, including the sensor head 10, and the balance of alstetenden over the strip length dissimilar thermal expansions of the magnetic tape 14 relative to the guide rail 7. As mechanical reinforcement of the magnetic tape 14 prevents an uneven stretching of the magnetic tape 14 and thus a falsification of the coding during assembly .. Because of its non-magnetic property, the magnetic code marks of the magnetic tape 14 also remain readable for the sensor head 10 through the cover tape 14.
  • the receiving groove 16 is milled over the entire length of the end face 17 of the guide flange 18 and has a cross section which is complementary to the shape of the magnetic tape 14 and is here rectangular.
  • the code tape 9 is with With the help of the magnetic coding of the magnetic tape 14 held magnetically self-adhesive in the receiving groove 16 stationary.
  • a fixed connection for example by means of a screw connection at the upper end of the guide section, serves to secure the position of the magnetic tape 14.
  • adhesive points can be used at regular intervals over the length of the receiving groove 16 to fix the magnetic tape (not shown). However, one is. Gluing is not absolutely necessary with sufficient magnetic self-adhesion of the magnetic tape.
  • FIG. 2b shows an embodiment of the device according to the invention in which a code tape 19 is inserted flush into a receiving groove 23 formed laterally on the foot 20 of the guide flange 21 of a guide rail 22.
  • a sensor head 24 is moved together with the elevator car 2 in the vertical direction 8.
  • a sensor 27 is arranged on a carrier 26 of the sensor head 24 and reads the coded information from the code tape 19, which is then forwarded to an evaluation unit 28.
  • FIG. 3b shows a detailed view IIb of the embodiment from FIG. 2b.
  • the code tape 19 with a substantially rectangular cross section is inserted flush with a metallic non-magnetic cover tape 29 facing outward into a complementary receiving groove 23 of the guide flange.
  • a magnetic tape 30 is firmly bonded to the code tape 19 with the metallic non-magnetic cover tape 29.
  • the code tape 31 again consists of a magnetic tape 33 and a cover tape 34 firmly adhered to it.
  • the magnetic tape 33 corresponds in structure and function to the magnetic tape 14 of the embodiment shown in FIG. 3a.
  • the cover tape 34 has a trapezoidal cross section and projects symmetrically on both sides beyond the magnetic tape 33. The side boundaries 35, 36 of the cover tape 34 are chamfered towards the magnetic tape 33.
  • the groove depth 37 of the receiving groove 38 is greater than the thickness 39 of the code tape 34.
  • the width 40 of the receiving groove 38 is selected to be greater than the width 41 of the magnetic tape 33, while the width 42 of the masking tape 34 is basically the clear width 40 of the receiving groove 38
  • Side surfaces 43, 44 of the receiving groove 38 and the side boundaries 35, 36 of the cover tape 34 are complementary to one another. In the assembled state, the cover band 34 is flush with the surface of the guide rail 32. The position of the magnetic tape 33 is clearly specified by the firmly connected cover tape 34.
  • the receiving groove 38 can be manufactured inexpensively with large manufacturing tolerances, because only the side surfaces 43, 44 on the easily accessible upper edge of the receiving groove 38 are to be designed to be complementary to the side boundaries 35, 36 of the cover tape 34.
  • the receiving groove lies in a region of the guide flange which is subject to high dynamic stresses when the elevator car is moving. To come from the receiving groove in this area To avoid notch stresses, the foot area of the guide flange can be pre-machined by hot rolling.
  • a bead 48 with tension-favorable transitions 49 is formed in the foot region 45 of the guide flange 46 over the length of the guide rail 47.
  • the receiving groove 50 is then machined into this bead 48.
  • An alternative embodiment to the bead 48 without weakening the foot area 45 provides for the receiving groove to be limited laterally at least on one side by a rolled-on rib.
  • 4b shows a receiving groove 51 with rounded transitions of the groove flanks 52, 53, which is rolled into the guide flange 54. 5 that two mutually parallel channels 55, 56 are rolled over the length of the guide rail.
  • the area 57 between the grooves 55, 56 is machined, e.g. milled, and forms a flat support surface 58 for a code tape (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

In order to determine the position of a rail-guided elevator car, the position transmitter device has a code support (9), which is mounted in a fixed manner on the guide rail (7) over the guideway and which is provided with code marks each having a different permeability. A constantly exact reading of the coding is ensured by virtue of the fact that the code support (9) is joined to a non-magnetic covering (15) in a fixed manner, whereby the code marks are covered toward the exterior by the non-magnetic covering (15). In an advantageous design, the code support (9) is inserted with the outwardly pointing nonmagnetic covering (15) into an accommodating slot (16) of the elevator car guide rail (7), whereby achieving a simple and reliable fitting and, in addition, preventing temperature-dependent expansion differences between the code support and the guide rail.

Description

Einrichtung zur Ermittlung der Position einer schienengeführten Aufzugskabine mit CodeträgerDevice for determining the position of a rail-guided elevator car with code carrier
Die Erfindung betrifft eine Einrichtung zur Ermittlung der Absolutposition einer schienengeführten Aufzugskabine nach Definition der Patentansprüche.The invention relates to a device for determining the absolute position of a rail-guided elevator car according to the definition of the claims.
Solche Positionsgebereinrichtungen sind bekannt. Bei Aufzugsanlagen werden diese dazu verwendet, die Absolutposition einer Aufzugskabine zu bestimmen und daraus Informationssignale für die Steuerung der Aufzugsanlage abzuleiten. Die Positionsinformation ist in codierter Form ortsfest entlang des gesamten Verfahrwegs der Aufzugskabine angebracht und wird mittels einer Codeleseeinrichtung in codierter Form abgelesen und in einer Auswerteeinrichtung steuerungsverständlich aufbereitet .Such position sensors are known. In elevator systems, these are used to determine the absolute position of an elevator car and to derive information signals therefrom for the control of the elevator system. The position information is fixed in a coded form along the entire travel path of the elevator car and is read in coded form by means of a code reading device and processed in a control-understandable manner in an evaluation device.
Beispielsweise ist aus dem deutschen Gebrauchsmuster G 92 10 996.9 eine Einrichtung bekannt, bei der als Codeträger ein Magnetstreifen seitlich an einer Kabinenführungsschiene befestigt ist. Der Magnetstreifen enthält in Verschieberichtung der Aufzugskabine eine Längencodierung und codierte Informationen über Haltestellen oder dergleichen. Ein an der Aufzugskabine befestigter und gemeinsam mit dieser in Leserichtung der Codierung relativ zum Magnetstreifen bewegbarer Magnetkopf liest die codierten Informationen ab und leitet sie zur Auswertung weiter.For example, a device is known from German utility model G 92 10 996.9, in which a magnetic strip is attached laterally to a cabin guide rail as a code carrier. The magnetic stripe contains a length coding and coded information about stops or the like in the direction of displacement of the elevator car. A magnetic head attached to the elevator car and movable with it in the direction of the coding relative to the magnetic strip reads the coded information and forwards it for evaluation.
Nachteile der bekannten Einrichtung bestehen in der bisher üblichen Anbringung des Magnetstreifens an oder auf der Kabinenführungsschiene, wie auch in der Ausbildung des Magnetstreifens selbst. Der Magnetstreifen ist positionsgenau und ohne Überdehnung an der Führungsschiene zu montieren, um ein Verfälschen der Codierung und daraus resultierenden Ungenauigkeiten für die Positionierung der Aufzugskabine zu vermeiden. Ferner treten ungleiche Wärmedehnungen des Magnetbandes gegenüber der Kabinenführungsschiene auf, was eine Relativverschiebung der. Codierung zur Führungsschiene zur Folge hat. Die exponierte Lage des Magnetstreifens seitlich an der Führungsschiene birgt ausserde die Gefahr von mechanischen Beschädigungen des Magnetstreifens durch im Schacht bewegte Teile, wie zum Beispiel dem Magnetkopf bei auftretenden Horizontalbewegungen der Aufzugskabine. Das bekannte Magnetband setzt sich mit Schmieröl und im Schacht aufgewirbelten Staubteilchen zu, was ein Ablesen der Codierung beeinträchtigt.Disadvantages of the known device consist in the hitherto usual attachment of the magnetic strip on or on the cabin guide rail, as well as in the design of the Magnetic stripe itself. The magnetic stripe must be mounted on the guide rail in the correct position and without overstretching, in order to avoid falsifying the coding and resulting inaccuracies in the positioning of the elevator car. Furthermore, uneven thermal expansions of the magnetic tape compared to the cabin guide rail occur, which results in a relative displacement of the. Coding to the guide rail. The exposed position of the magnetic stripe on the side of the guide rail also harbors the risk of mechanical damage to the magnetic stripe due to parts moving in the shaft, such as the magnetic head when horizontal movements of the elevator car occur. The known magnetic tape is clogged with lubricating oil and dust particles whirled up in the shaft, which impairs the reading of the coding.
Aufgabe der Erfindung ist es, eine wartungsgünstige Positionsgebereinrichtung für Aufzüge anzugeben, welche ein dauerhaft exaktes Ablesen der Absolutcodierung sicherstellt.The object of the invention is to provide a low-maintenance position transmitter device for elevators, which ensures permanent, exact reading of the absolute coding.
Die Lösung dieser Aufgabe ist erfindungsge äss durch eine Einrichtung zur Ermittlung der Position einer Aufzugskabine mit den Merkmalen des Patentanspruchs 1 angegeben, welche sich insbesondere dadurch auszeichnet, dass der Codeträger mit einer nichtmagnetischen Abdeckung fest verbunden ist, wobei die Codemarken nach aussen hin mittels der nichtmagnetischen Abdeckung abgedeckt sind.The solution to this problem is according to the invention by a device for determining the position of an elevator car with the features of claim 1, which is characterized in particular in that the code carrier is firmly connected to a non-magnetic cover, the code marks externally by means of the non-magnetic Cover are covered.
Mit der Erfindung erzielte Vorteile bestehen darin, dass der Codeträger und damit die Codierung vor mechanischenAdvantages achieved with the invention are that the code carrier and thus the coding before mechanical
Beschädigungen durch im Schacht bewegte Teile geschützt ist.Damage from parts moving in the shaft is protected.
Die nichtmagnetische Abdeckung wirkt ferner als mechanische Verstärkung für den Codeträger und verhindert dadurch bei der Montage ein Verfälschen der Codierung durch ungleichmässiges Dehnen des Codeträgers in Ableserichtung.The non-magnetic cover also acts as a mechanical one Reinforcement for the code carrier and thereby prevents the coding from being falsified by uneven stretching of the code carrier in the reading direction.
Eine weitere Steigerung der Zuverlässigkeit und Genauigkeit der Positionsermittlung ist mit einem Codeträger zu erreichen, welcher als ein die Codierung tragendes Magnetband und eine fest damit verbundene nicht agnetisierbare Abdeckung, in Form eines metallischen Abdeckbands, ausgebildet ist. Neben der hohen mechanischen Festigkeit, wird bei einem solchen Codeträger ein günstiger Wärmeausgleich zwischen Codeträger und Führungsschiene erreicht. Dies wirkt über die Länge des Codeträgers auftretenden temperaturbedingten, ungleichen Wärmedehnungen gegenüber der Führungsschiene entgegen, bzw. vergleichmässigt die auftretenden Dehnungsunterschiede.A further increase in the reliability and accuracy of the position determination can be achieved with a code carrier, which is designed as a magnetic tape carrying the coding and a non-agnizable cover firmly connected thereto, in the form of a metallic masking tape. In addition to the high mechanical strength, a favorable heat balance between the code carrier and the guide rail is achieved with such a code carrier. This counteracts the temperature-related, unequal thermal expansions that occur over the length of the code carrier with respect to the guide rail, or evenens the expansion differences that occur.
In Weiterbildung der Erfindung ist vorgesehen, dass der Codeträger mit nach aussen weisender Abdeckung in eine Aufnahmenut der Führungsschiene eingesetzt ist. Die Aufnahmenut ermöglicht eine einfache und exakte Montage des Codeträgers, weil dieser ohne zusätzliche Hilfsmittel lediglich in die konstruktiv vorgesehene Aufnahmenut einzusetzen ist. Das die Codierung tragende Magnetband ist nach allen Seiten hin schützend abgedeckt. Der in der Aufnahmenut eingesetzte Codeträger ist in der Führungsschiene eingebettet und nach aussen hin durch die Abdeckung abgedeckt und nimmt deshalb im wesentlichen deren Temperatur an. Temperaturbedingte Dehnungsunterschiede zwischen dem Codeträger und der Führungsschiene treten deshalb keine auf. Insbesondere bei einer zum Codeträger komplementär dargestellten Aufnahmenut, bei welcher der Codeträger bündig zur Oberfläche der Führungsschiene eingesetzt ist, ist ausgeschlossen, dass der Codeträger durch im Schacht bewegte Teile oder zum Beispiel durch einen Monteur bei Wartungsarbeiten versehentlich verschoben oder verbogen wird und dadurch die Codierung verfälscht oder unleserlich würde.In a further development of the invention it is provided that the code carrier is inserted into a receiving groove of the guide rail with the cover facing outward. The receiving groove enables simple and exact assembly of the code carrier because it can only be inserted into the constructively provided receiving groove without additional aids. The magnetic tape carrying the coding is covered on all sides for protection. The code carrier inserted in the receiving groove is embedded in the guide rail and covered on the outside by the cover and therefore essentially assumes its temperature. There are therefore no temperature-related differences in expansion between the code carrier and the guide rail. In particular in the case of a receiving groove which is complementary to the code carrier and in which the code carrier is inserted flush with the surface of the guide rail, it is impossible for the code carrier to be inadvertently shifted or bent by parts moving in the shaft or, for example, by a mechanic during maintenance work and thereby falsifying the coding or would become illegible.
Zweckmässiger Weise ist die Aufnahmenut stirnseitig an einem Führungsflansch der Kabinenführungsschiene ausgebildet. Die Fertigung der Aufnahmenut ist einfach und der Codeträger ist zum Ablesen der Codierung für die Codeleseeinrichtung sehr gut zugänglich.The receiving groove is expediently formed on the end face of a guide flange of the cabin guide rail. The production of the receiving groove is simple and the code carrier is very easily accessible for reading the coding for the code reading device.
Eine kompakte und platzsparende Bauweise des Aufzugs ist bei einer Ausführung möglich, bei der die Aufnahmenut seitlich an einem Führungsflansch der Kabinenführungsschiene ausgebildet ist. Diese Anordnung begünstigt ferner ein exaktes Ablesen der Codierung mit Hilfe der Codeleseeinrichtung.A compact and space-saving design of the elevator is possible in an embodiment in which the receiving groove is formed on the side of a guide flange of the car guide rail. This arrangement also favors an exact reading of the coding with the aid of the code reading device.
Vorteile im Hinblick auf eine schnelle und exakte Montage des Codeträgers und die Herstellung der erfindungsgemässen Einrichtung bietet eine Ausführung, bei der die Abdeckung als Band mit im wesentlichen zwei zueinander parallelen Flächen und Seitenbegrenzungen ausgebildet ist, wobei mindestens die Seitenbegrenzungen den Codeträger seitlich überragen, und die Nutflanken der Aufnahmenut komplementär zu den Seitenbegrenzungen des Abdeckbandes ausgebildet sind.An embodiment in which the cover is designed as a band with essentially two mutually parallel surfaces and side boundaries, with at least the side boundaries projecting laterally beyond the code carrier, and advantages with regard to a quick and exact assembly of the code carrier and the manufacture of the device according to the invention Groove flanks of the receiving groove are complementary to the side boundaries of the masking tape.
Der Codeträger ist vorzugsweise magnetisch selbsthaftend an der Führungsschiene befestigt. Dies ermöglicht eine einfache und zeitsparende Montage. Gleichzeitig liegt der Codeträger direkt an der Führungsschiene an und begünstigt die Wärmeübertragung zwischen beiden. Der Codeträger folgt jeglichen Bewegungen der Führungsschiene ohne dass die Anbindung sich löst oder der Codeträger lokale Aufstauchungen erfährt.The code carrier is preferably attached to the guide rail in a magnetically self-adhesive manner. This enables easy and time-saving assembly. At the same time, the code carrier lies directly on the guide rail and promotes heat transfer between the two. The code carrier follows all movements of the guide rail without the connection becoming detached or the code carrier experiencing local swellings.
Bei Ausführungsformen mit seitlich am Führungsflansch der Kabinenführungsschiene angeordnetem Codeträger liegt die Aufnahmenut in einem Bereich des Führungsflansches, der bei fahrender Aufzugskabine dynamisch hoch beansprucht ist. Um in diesem Bereich von der Aufnahrαenut herrührende Kerbspannungen zu vermeiden, ist es zweckmässig, den Fussbereich des Führungsflansches durch Warmwalzen zu bearbeiten.In embodiments with a code carrier arranged laterally on the guide flange of the car guide rail, the receiving groove lies in a region of the guide flange which is subject to high dynamic stresses when the elevator car is moving. In order to avoid notch stresses arising from the receiving groove in this area, it is expedient to machine the foot area of the guide flange by hot rolling.
Weitere abhängige Patentansprüche enthalten vorteilhafte Ausbildungen der Erfindung.Further dependent claims contain advantageous developments of the invention.
Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der beigefügten Zeichnungen erläutert. Es zeigt:Exemplary embodiments of the invention are explained below with reference to the accompanying drawings. It shows:
Figur 1, schematisch einen Aufzug mit einer Ausführungsform der erfindungsgemässen Positionsgebereinrichtung; Figur 2a, ein erstes Ausführungsbeispiel des erfindungsgemässen Magnetbands und seiner Anbringung an der Führungsschiene im Schnitt gemäss Schnittverlauf II-II in Fig. 1; Figur 2b, ein zweites Ausführungsbeispiel des Magnetbandes und seiner Anbringung seitlich an derFigure 1, schematically an elevator with an embodiment of the position transmitter device according to the invention; Figure 2a, a first embodiment of the magnetic tape according to the invention and its attachment to the guide rail in section according to section line II-II in Fig. 1; Figure 2b, a second embodiment of the magnetic tape and its attachment to the side
Führungsschiene im Schnitt gemäss Schnittverlauf II-II in Fig. 1; Figur 3a, eine Detailansicht ,der Stirnseite desGuide rail in section according to section II-II in Fig. 1; Figure 3a, a detailed view of the front of the
Führungsflansches aus Fig. 2a; Figur 3b, eine Detailansicht des Ausführungsbeispiels ausGuide flange from Fig. 2a; Figure 3b, a detailed view of the embodiment
Fig. 2b; Figur 3c, ein drittes Ausführungsbeispiel des Magnetbandes und seiner Anbringung an der Führungsschiene; Figur 4a, eine vierte Ausführung einer Aufnahmenut seitlich an der Führungsschiene; Figur 4b, eine fünfte Ausführung der Aufnahmenut seitlich an der Führungsschiene;Fig. 2b; Figure 3c, a third embodiment of the magnetic tape and its attachment to the guide rail; Figure 4a, a fourth embodiment of a receiving groove on the side of the guide rail; Figure 4b, a fifth embodiment of the receiving groove on the side of the guide rail;
Figur 5, eine Detailansicht V der Aufnahmenut aus Fig. 4b.Figure 5, a detailed view V of the receiving groove from Fig. 4b.
Fig. 1 zeigt einen Aufzug mit einem Schacht 1, im welchem eine Aufzugskabine 2 und ein Gegengewicht 3 an einem gemeinsamen Tragseil 4 aufgehängt sind. Das Tragseil 4 ist über eine nicht angetriebene Umlenkrolle 5 und eine angetriebene Treibscheibe 6 geführt und wird von letzterer angetrieben. Die Treibscheibe 6 überträgt die Antriebskräfte eines hier nicht dargestellten Antriebsmotors zum Heben und Senken der Aufzugskabine 2 und des Gegengewichts 3 auf das von ihr angetriebene Tragseil 4. Die Aufzugskabine 2 ist entlang einer Führungschiene 7 vertikal verschiebbar. Entlang der Führungsschiene 7 ist parallel zur Bewegungsrichtung 8 der Aufzugskabine 2 ein Codeband 9 angebracht. Das Codeband 9 enthält in Bewegungsrichtung 8 der Aufzugskabine 2 codierte Längen- bzw. Positonsangaben und codierte Informationen über Haltestellen oder dergleichen. Die codierten Informationen werden von einem Sensorkopf 10 abgelesen und zur Auswerteeinheit 11 weitergeleitet. Der Sensorkopf 10 ist an der Aufzugskabine 2 angeordnet und wird zusammen mit dieser entlang des Codebandes 9 bewegt. Zum Ablesen der Codierung des Magnetbandes ist der Sensorkopf 10 mit entsprechend geeigneten Sensoren ausgestattet. Hierzu geeignet sind beispielsweise Hall- Sensoren, Induktionsgeber oder - wie in dem dargestellten Ausführungsbeispiel - die Magnetfeldrichtung detektierende Magnetoresitive Sensoren, sogenannte MR-Sensoren. Von jedem dieser Sensoren können entweder mehrere einzelene und/ oder eine Gruppe unterschiedlicher Sensoren, vorgesehen sein.Fig. 1 shows an elevator with a shaft 1, in which an elevator car 2 and a counterweight 3 are suspended on a common support cable 4. The supporting cable 4 is guided over a non-driven deflection roller 5 and a driven traction sheave 6 and is driven by the latter. The traction sheave 6 transmits the driving forces of a drive motor, not shown here, for lifting and lowering the elevator car 2 and the counterweight 3 to the supporting cable 4 driven by it. The elevator car 2 can be displaced vertically along a guide rail 7. A code tape 9 is attached along the guide rail 7 parallel to the direction of movement 8 of the elevator car 2. In the direction of movement 8 of the elevator car 2, the code tape 9 contains coded length or position information and coded information about stops or the like. The coded information is read from a sensor head 10 and passed on to the evaluation unit 11. The sensor head 10 is arranged on the elevator car 2 and is moved together with the latter along the code band 9. To read the coding of the magnetic tape, the sensor head 10 is equipped with suitable sensors. Suitable for this purpose are, for example, Hall sensors, induction transmitters or — as in the exemplary embodiment shown — magnetoresitive sensors that detect the magnetic field direction, so-called MR sensors. Either several individual and / or a group of different sensors can be provided from each of these sensors.
Die vom Sensorkopf 10 abgelesene codierte Information wird an eine Auswerteeinheit 11 weitergeleitet. Die Auswerteeinheit 11 übersetzt die codierte Information in eine für die Aufzugssteuerung 12 verständliche Form, bevor sie beispielsweise wie hier über ein Hängekabel 13 an die Aufzugssteuerung 12 zur Positionierung der Aufzugskabine 2 weitergeleitet wird.The coded information read from the sensor head 10 is forwarded to an evaluation unit 11. The evaluation unit 11 translates the coded information into a form that is understandable for the elevator control 12, before it is forwarded, for example, to the elevator control 12 via a hanging cable 13 for positioning the elevator car 2.
In dem in Fig. 2a dargestellten Horizontalschnitt der Führungsschiene 7 besteht das Codeband 9 aus einem Magnetband 14 und einem metallischen Abdeckband 15. Hierzu geeignet ist grundsätzlich jedes beliebige Material, welches mechanischen Schutz für das Magnetband 14 bzw. die Codemarken bietet. Das Magnetband 14 ist mittig auf das metallische Abdeckband 15 aufgeklebt, wobei das Abdeckband 15 beidseitig über das Magnetband 14 übersteht. Das Magnetband 14 ist in eine Aufnahmenut 16 an der Stirnfläche 17 des Führungsflansches 18 der Führungsschiene 7 eingesetzt und zum Schacht 1 hin durch das metallische Abdeckband 15 abgedeckt . Das Magnetband 14 besteht aus vulkanisiertem Nitril-Gu mi als Binder, in den ausgerichtetes Bariumferrit eingelagert ist. Allgemein kann das Magnetband aus einem Kunststoffoder Gummimaterial ausgebildet sein, in das jegliches magnetisierbare Material eingelagert sein kann. Das magnetisierbare Material ist in abwechselnder Reihenfolge in Form von quer zur Magnetbandlängsrichtung verlaufende Abschnitte entweder als magnetischer Nordpol oder als magnetischer Südpol magnetisiert . Die magnetisierten Abschnitte bilden nach aussen entsprechend orientierte Magnetfelder aus und stellen die Codemarken des Magnetbands 14 dar. Je nach Polarität der Codemarken können damit zwei unterschiedliche Werte „0" und „1" als Grundbausteine der Codierung dargestellt werden.In the horizontal section of the guide rail 7 shown in FIG. 2a, the code tape 9 consists of a magnetic tape 14 and a metallic masking tape 15. In principle, any material that offers mechanical protection for the magnetic tape 14 or the code marks is suitable. The magnetic tape 14 is glued centrally to the metallic cover tape 15, the cover tape 15 projecting beyond the magnetic tape 14 on both sides. The magnetic tape 14 is inserted into a receiving groove 16 on the end face 17 of the guide flange 18 of the guide rail 7 and is covered towards the shaft 1 by the metallic cover tape 15. The magnetic tape 14 consists of vulcanized nitrile rubber as a binder, in which aligned barium ferrite is embedded. In general, the magnetic tape can be formed from a plastic or rubber material in which any magnetizable material can be embedded. The magnetizable material is magnetized in an alternating order in the form of sections extending transversely to the longitudinal direction of the magnetic tape, either as a magnetic north pole or as a magnetic south pole. The magnetized sections form correspondingly oriented magnetic fields on the outside and represent the code marks of the magnetic tape 14. Depending on the polarity of the code marks, two different values "0" and "1" can thus be represented as basic components of the coding.
Das nichtmagnetische metallische Abdeckband 15 dient zum Schutz vor mechanischen Beschädigungen des "Magnetbandes 14 durch im Schacht 1 bewegte Teile, z.B. dem Sensorkopf 10, und dem Ausgleich von über die Bandlänge auftetenden ungleichen Wärmedehnungen des Magnetbandes 14 gegenüber der Führungsschiene 7. Als mechanische Verstärkung des Magnetbandes 14 verhindert es ein ungleichmässiges Dehnen des Magnetbandes 14 und damit ein Verfälschen der Codierung bei der Montage. Wegen seiner nichtmagnetischen Eigenschaft bleiben die magnetischen Codemarken des Magnetbands 14 auch durch das Abdeckband 14 hindurch für den Sensorkopf 10 lesbar.The non-magnetic metallic cover 15 is for protection against mechanical damage of the "magnetic tape 14 by the shaft 1 of moving parts, including the sensor head 10, and the balance of auftetenden over the strip length dissimilar thermal expansions of the magnetic tape 14 relative to the guide rail 7. As mechanical reinforcement of the magnetic tape 14 prevents an uneven stretching of the magnetic tape 14 and thus a falsification of the coding during assembly .. Because of its non-magnetic property, the magnetic code marks of the magnetic tape 14 also remain readable for the sensor head 10 through the cover tape 14.
Die Aufnahmenut 16 ist über die gesamte Länge der Stirnfläche 17 des Führungsflansches 18 eingefrässt und weist einen zur Form des Magnetbandes 14 komplementären, hier rechteckigen Querschnitt auf. Das Codeband 9 ist mit Hilfe der magnetischen Codierung des Magnetbands 14 magnetisch selbsthaftend in der Aufnahmenut 16 ortsfest gehaltert. Eine feste Anbindung, z.B. mittels Schraubverbindung am oberen Ende der Führungsstrecke dient als Lagesicherung des Magnetbandes 14. Zusätzlich können Klebepunkte in regelmässigen Abständen über die Länge der Aufnahemnut 16 zur Fixierung des Magnetbandes dienen (nicht dargestellt) . Allerdings ist eine. Klebung bei ausreichender magnetischer Selbsthaftung des Magnetbandes nicht zwingend erforderlich.The receiving groove 16 is milled over the entire length of the end face 17 of the guide flange 18 and has a cross section which is complementary to the shape of the magnetic tape 14 and is here rectangular. The code tape 9 is with With the help of the magnetic coding of the magnetic tape 14 held magnetically self-adhesive in the receiving groove 16 stationary. A fixed connection, for example by means of a screw connection at the upper end of the guide section, serves to secure the position of the magnetic tape 14. In addition, adhesive points can be used at regular intervals over the length of the receiving groove 16 to fix the magnetic tape (not shown). However, one is. Gluing is not absolutely necessary with sufficient magnetic self-adhesion of the magnetic tape.
Fig. 2b zeigt eine Ausführung der erfindungsgemässen Einrichtung, bei der ein Codeband 19 in eine seitlich am Fuss 20 des Führungsflansches 21 einer Führungsschiene 22 ausgebildeten Aufnahmenut 23 bündig eingesetzt ist. Ein Sensorkopf 24 wird zusammen mit der Aufzugskabine 2 in vertikaler Richtung 8 bewegt. An einem Träger 26 des Sensorkopfes 24 ist wiederum ein Sensor 27 angeordnet, welcher die codierte Information des Codebandes 19 abliest, die dann an eine Auswerteeinheit 28 weiterleitet wird.2b shows an embodiment of the device according to the invention in which a code tape 19 is inserted flush into a receiving groove 23 formed laterally on the foot 20 of the guide flange 21 of a guide rail 22. A sensor head 24 is moved together with the elevator car 2 in the vertical direction 8. In turn, a sensor 27 is arranged on a carrier 26 of the sensor head 24 and reads the coded information from the code tape 19, which is then forwarded to an evaluation unit 28.
Fig. 3b stellt eine Detailansicht Ilb des Ausführungsbeispiels aus Fig. 2b dar. Das Codeband 19 mit im wesentlichen rechteckigem Querschnitt ist mit einem metallischen nichtmagnetischen Abdeckband 29 nach aussen weisend in eine komplementäre Aufnahmenut 23 des Führungflansches bündig eingesetzt. Mit dem metallischen nichtmagnetischen Abdeckband 29 ist ein Magnetband 30 fest zu dem Codeband 19 verklebt.3b shows a detailed view IIb of the embodiment from FIG. 2b. The code tape 19 with a substantially rectangular cross section is inserted flush with a metallic non-magnetic cover tape 29 facing outward into a complementary receiving groove 23 of the guide flange. A magnetic tape 30 is firmly bonded to the code tape 19 with the metallic non-magnetic cover tape 29.
In Fig. 3c ist eine dritte Ausführung des Codeträgers als Codeband 31 und seine Anbringung an einer Führungsschiene 32 dargestellt. Das Codeband 31 besteht wie in den zuvor beschriebenen Ausführungen wiederum aus einem Magnetband 33 und einem mit diesem fest verklebten Abdeckband 34. Das Magnetband 33 entspricht in Aufbau und Funktion dem Magnetband 14 der in Fig. 3a dargestellten Ausführung. Das Abdeckband 34 besitzt einen trapezförmigen Querschnitt und ragt symmetrisch zu beiden Seiten über das Magnetband 33 hinaus. Die Seitenbegrenzungen 35, 36 des Abdeckbandes 34 sind zum Magnetband 33 hin abgeschrägt.3c shows a third embodiment of the code carrier as a code tape 31 and its attachment to a guide rail 32 shown. As in the previously described embodiments, the code tape 31 again consists of a magnetic tape 33 and a cover tape 34 firmly adhered to it. The magnetic tape 33 corresponds in structure and function to the magnetic tape 14 of the embodiment shown in FIG. 3a. The cover tape 34 has a trapezoidal cross section and projects symmetrically on both sides beyond the magnetic tape 33. The side boundaries 35, 36 of the cover tape 34 are chamfered towards the magnetic tape 33.
Die Nuttiefe 37 der Aufnahmenut 38 ist grösser als die Dicke 39 des Codebandes 34. Die Breite 40 der Aufnahmenut 38 ist grösser gewählt als die Breite 41 des Magnetbands 33, während die Breite 42 des Abdeckbands 34 grundsätzlich der lichten Breite 40 der Aufnahmenut 38. Die Seitenflächen 43, 44 der Aufnahmenut 38 und die Seitenbegrenzungen 35, 36 des Abdeckbands 34 sind komplementär zueinander ausgebildet. Im montierten Zustand schliesst das Abdeckband 34 bündig mit der Oberfläche der Führungsschiene 32 ab. Die Position des Magnetbands 33 ist eindeutig durch das fest verbundene Abdeckband 34 vorgegeben. Die Aufnahmenut 38 kann kostengünstig mit grossen Fertigungstoleranzen gefertigt werden, weil lediglich die Seitenflächen 43, 44 am einfach zugänglichen oberen Rand der Aufnahmenut 38 komplementär zu den Seitenbegrenzungen 35, 36 des Abdeckbands 34 auszubilden sind.The groove depth 37 of the receiving groove 38 is greater than the thickness 39 of the code tape 34. The width 40 of the receiving groove 38 is selected to be greater than the width 41 of the magnetic tape 33, while the width 42 of the masking tape 34 is basically the clear width 40 of the receiving groove 38 Side surfaces 43, 44 of the receiving groove 38 and the side boundaries 35, 36 of the cover tape 34 are complementary to one another. In the assembled state, the cover band 34 is flush with the surface of the guide rail 32. The position of the magnetic tape 33 is clearly specified by the firmly connected cover tape 34. The receiving groove 38 can be manufactured inexpensively with large manufacturing tolerances, because only the side surfaces 43, 44 on the easily accessible upper edge of the receiving groove 38 are to be designed to be complementary to the side boundaries 35, 36 of the cover tape 34.
Bei Ausführungsformen mit seitlich am Führungsflansch der Kabinenführungsschiene angeordnetem Codeträger liegt die Aufnahmenut in einem Bereich des Führungsflansches, der bei fahrender Aufzugskabine dynamisch hoch beansprucht ist. Um in diesem Bereich von der Aufnahmenut herrührende Kerbspannungen zu vermeiden, kann der Fussbereich des Führungsflansches durch Warmwalzen vorbearbeitet werden.In embodiments with a code carrier arranged laterally on the guide flange of the car guide rail, the receiving groove lies in a region of the guide flange which is subject to high dynamic stresses when the elevator car is moving. To come from the receiving groove in this area To avoid notch stresses, the foot area of the guide flange can be pre-machined by hot rolling.
Gemäss Fig. 4a wird im Fussbereich 45 des Führungsflansches 46 über die Länge der Führungsschiene 47 eine Wulst 48 mit spannungsgünstigen Übergängen 49 ausgebildet. Die Aufnahmenut 50 wird dann spanabhebend in diese Wulst 48 eingearbeitet.4a, a bead 48 with tension-favorable transitions 49 is formed in the foot region 45 of the guide flange 46 over the length of the guide rail 47. The receiving groove 50 is then machined into this bead 48.
Eine zur Wulst 48 alternative Ausführung ohne Schwächung des Fussbereichs 45 sieht vor, die Aufnahmenut mindestens auf einer Seite seitlich durch eine aufgewalzte Rippe zu begrenzen.An alternative embodiment to the bead 48 without weakening the foot area 45 provides for the receiving groove to be limited laterally at least on one side by a rolled-on rib.
Fig. 4b zeigt eine Aufnahmenut 51 mit abgerundeten Übergängen der Nutflanken 52, 53, die in den Führungsflansch 54 eingewalzt ist. In der Detailansicht gemäss Fig. 5 ist zu erkennen, dass zwei in gegenseitigem Abstand zueinander parallele Rinnen 55, 56 über die Länge der Führungsschiene eingewalzt sind. Der Bereich 57 zwischen den Rinnen 55, 56 ist spanabhebend bearbeitet, z.B. gefrässt, und bildet eine plane Auflagefläche 58 für ein Codeband (nicht dargestellt) . 4b shows a receiving groove 51 with rounded transitions of the groove flanks 52, 53, which is rolled into the guide flange 54. 5 that two mutually parallel channels 55, 56 are rolled over the length of the guide rail. The area 57 between the grooves 55, 56 is machined, e.g. milled, and forms a flat support surface 58 for a code tape (not shown).

Claims

Patentansprüche claims
1. Einrichtung zur Ermittlung der Absolutposition einer entlang Führungsschienen (7 ) , (22) , (32) , (47, ) über eine Fahrstrecke verfahrbaren Aufzugskabine (2) einer Aufzugsanlage, mit einem an mindestens einer Kabinenführungsschiene (7) , (22) , (32) , (47, ) ortsfest ausgebildeten Codeträger (9) , (19) , (31) , welcher in Fahrtrichtung der Aufzugskabine (2) abwechselnd aufeinanderfolgende Codemarken unterschiedlicher Permeabilität aufweist, dadurch gekennzeichnet, dass der Codeträger (9) , (19) , (31) mit einer nichtmagnetischen Abdeckung (15), (29), (34) fest verbunden ist, wobei die Codemarken mittels der nichtmagnetischen Abdeckung (15) , (29) , (34) nach aussen hin abgedeckt sind.1. Device for determining the absolute position of an elevator car (2) of an elevator system, which can be moved along guide rails (7), (22), (32), (47,) over a route, with one on at least one car guide rail (7), (22) , (32), (47,) stationary code carrier (9), (19), (31), which in the direction of travel of the elevator car (2) alternately has successive code marks of different permeability, characterized in that the code carrier (9), ( 19), (31) is firmly connected to a non-magnetic cover (15), (29), (34), the code marks being covered to the outside by means of the non-magnetic cover (15), (29), (34).
2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Codierung nach aussen hin mittels einer metallischen nichtmagnetischen Abdeckung (15) , (29) , (34) abgedeckt ist.2. Device according to claim 1, characterized in that the coding to the outside by means of a metallic non-magnetic cover (15), (29), (34) is covered.
3. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Kabinenführungsschiene (7) , (22) , (32) , (47) eine Aufnahmenut (16) , (23) , (38) , (50) , (51) aufweist, und der Codeträger (9) , (19) , (31) in die Aufnahmenut (16) , (23) , (38) , (50) , (51) eingesetzt ist, wobei der in die Aufnahmenut (16) , (23) , (38) , (50) , (51) eingesetzte Codeträger (9) , (19) , (31) nach aussen mittels nichtmagnetischer Abdeckung (15) , (29) , (34) abgedeckt ist. 3. Device according to claim 1, characterized in that the cabin guide rail (7), (22), (32), (47) has a receiving groove (16), (23), (38), (50), (51) , and the code carrier (9), (19), (31) is inserted into the receiving groove (16), (23), (38), (50), (51), the into the receiving groove (16), ( 23), (38), (50), (51) inserted code carrier (9), (19), (31) to the outside by means of non-magnetic cover (15), (29), (34).
4. Einrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Aufnahmenut (23) , (38) , (50) , (51) seitlich an einem Führungsflansch (21) , (46) , (54) der Kabinenführungsschiene (7) , (22) , (32) , (47, ) ausgebildet ist.4. Device according to claim 3, characterized in that the receiving groove (23), (38), (50), (51) laterally on a guide flange (21), (46), (54) of the cabin guide rail (7), ( 22), (32), (47,).
5. Einrichtung nach Anspruch 3 dadurch gekennzeichnet, dass die Aufnahmenut (16) stirnseitig an einem Führungsflansch (18) der Kabinenführungsschiene (7) ausgebildet ist.5. Device according to claim 3, characterized in that the receiving groove (16) is formed on the end face of a guide flange (18) of the cabin guide rail (7).
6. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die nichtmagnetische Abdeckung (15) , (29) , (34 ) nach aussen bündig in die Aufnahmenut (19), (31) eingesetzt ist.6. Device according to claim 1, characterized in that the non-magnetic cover (15), (29), (34) is flush with the outside into the receiving groove (19), (31).
7. Einrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Abdeckung als Band (15) , (29) , (34 ) mit Seitenbegrenzungen (35), (36) ausgebildet ist, wobei mindestens die Seitenbegrenzungen (35) , (36) den Codeträger (9) , (19) , (31) seitlich überragen, und dass die Seitenflächen (43), 44 der Aufnahmenut (38) und die Seitenbegrenzungen (35), (36) des Abdeckbandes (34) komplementär zueinander ausgebildet sind.7. Device according to claim 3, characterized in that the cover is designed as a band (15), (29), (34) with side boundaries (35), (36), at least the side boundaries (35), (36) Project beyond the code carrier (9), (19), (31) and that the side surfaces (43), 44 of the receiving groove (38) and the side boundaries (35), (36) of the cover strip (34) are designed to be complementary to one another.
Einrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Codeträger (9) , (19) , (31) magnetisch selbsthaftend an der Führungsschiene (7) , (22) , (32) , (47) befestigt ist.Device according to one of the preceding claims, characterized in that the code carrier (9), (19), (31) is magnetically self-adhering to the guide rail (7), (22), (32), (47).
Einrichtung nach einem der vorbenannten Ansprüchen, dadurch gekennzeichnet, dass der Codeträger (9) , (19) , (31) aus vulkanisiertem Nitril-Gummi als Binder und die Codemarken aus darin eingelagertem ausgerichtetem Bariumferrit bestehen. Device according to one of the preceding claims, characterized in that the code carrier (9), (19), (31) made of vulcanized nitrile rubber as a binder and the code marks consist of aligned barium ferrite embedded therein.
EP02727141A 2001-05-31 2002-05-22 Device for determining the position of a rail-guided elevator car with a code support Expired - Lifetime EP1390284B1 (en)

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Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050039987A1 (en) * 2002-09-30 2005-02-24 Ray Redden Elevator landing and control apparatus and method
CN1950285B (en) * 2003-11-26 2010-11-10 奥蒂斯电梯公司 Positioning system and method for moving platform
DE102004037486B4 (en) * 2004-07-27 2006-08-10 ThyssenKrupp Aufzüge GmbH Signal band and system for determining a state of motion of a moving body, and apparatus for speed limiting the moving body, in particular an elevator car, using the same
US7597176B2 (en) * 2004-08-10 2009-10-06 Otis Elevator Company Elevator car position determining system and method using a signal filling technique
SG120230A1 (en) 2004-08-12 2006-03-28 Inventio Ag Lift installation with a cage and equipment for detecting a cage position as well as a method of operating such a lift installation
DE102005049408A1 (en) * 2005-10-13 2007-04-26 Wittenstein Ag Self-propelled elevator
JP5011876B2 (en) * 2006-08-04 2012-08-29 株式会社日立製作所 Elevator equipment
JP4380708B2 (en) * 2007-01-26 2009-12-09 株式会社日立製作所 Elevator equipment
DE102010026140A1 (en) * 2010-07-05 2012-01-05 Cedes Ag Monitoring device for securing a driven element
WO2012065911A1 (en) * 2010-11-16 2012-05-24 Inventio Ag Apparatus for generating shaft information items in an elevator installation
EP2540651B1 (en) * 2011-06-28 2013-12-18 Cedes AG Lift device, building and positioning device
CN102515020A (en) * 2011-12-21 2012-06-27 江苏美佳电梯有限公司 Fault identification feedback notification method of elevator part
FI20116342L (en) * 2011-12-30 2013-07-01 Rdnet Oy Method and arrangement for determining the position and/or speed of an object adapted to move and use of the arrangement
US9352934B1 (en) * 2013-03-13 2016-05-31 Thyssenkrupp Elevator Corporation Elevator positioning system and method
US9469501B2 (en) 2013-10-05 2016-10-18 Thyssenkrupp Elevator Corporation Elevator positioning clip system and method
EP3085653B1 (en) * 2015-04-24 2019-04-10 KONE Corporation Elevator
US10850948B2 (en) 2018-09-12 2020-12-01 Otis Elevator Company Escalator with a sensor for detecting sheave misalignment
US11919745B2 (en) * 2019-03-27 2024-03-05 Inventio Ag Mounting device and method for carrying out an installation process in an elevator shaft of an elevator system
EP3725724A1 (en) * 2019-04-15 2020-10-21 Otis Elevator Company Method and apparatus for sensing motion of an elevator car or counterweight
EP3835249A1 (en) * 2019-12-11 2021-06-16 Otis Elevator Company Alignment measurement of components of passenger conveyance system
DE102021206887A1 (en) 2021-06-30 2023-01-05 Pepperl+Fuchs Se Device for presenting a code
EP4440972B1 (en) 2021-11-30 2026-02-04 Inventio Ag Elevator and method for determining the position of an elevator car of the elevator which can be moved in an elevator shaft
EP4440973B1 (en) 2021-11-30 2026-01-28 Inventio Ag Elevator and method for determining the position of an elevator car of the elevator which can be moved in an elevator shaft

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54131237A (en) * 1978-03-31 1979-10-12 Toshiba Corp Selector tape for elevator
US4683990A (en) * 1985-08-29 1987-08-04 Innovation Industries, Inc. Relative position monitoring apparatus
US4798267A (en) * 1987-01-20 1989-01-17 Delaware Capital Formation, Inc. Elevator system having an improved selector
US4750592A (en) * 1987-03-20 1988-06-14 United States Elevator Corp. Elevator position reading sensor system
US4833306A (en) * 1988-05-18 1989-05-23 Fluoroware, Inc. Bar code remote recognition system for process carriers of wafer disks
DE3825097A1 (en) * 1988-07-23 1990-02-08 Stahl R Foerdertech Gmbh DEVICE FOR POSITION MEASUREMENT ON CRANE AND ELECTRIC MOUNTED RAILWAYS
DE3931828A1 (en) * 1989-09-23 1991-04-04 Krieg Gunther STRIP CODE AND METHOD AND DEVICE FOR READING SUCH A
JPH0585679A (en) * 1991-09-26 1993-04-06 Mitsubishi Electric Corp Hoistway detecting device for elevator
DE9210996U1 (en) * 1992-08-17 1992-10-29 C. Haushahn GmbH & Co, 7000 Stuttgart Combined position measuring and/or control arrangement for an elevator
US5360085A (en) * 1993-08-20 1994-11-01 Otis Elevator Company Elevator cab position sensing with reduced operating noise
CA2165247C (en) * 1995-01-20 2006-05-23 Bernhard Gerstenkorn Method and equipment for the production of shaft information data of a lift shaft
US5594219A (en) * 1995-01-23 1997-01-14 Otis Elevator Company Elevator position apparatus
US5925859A (en) * 1997-08-06 1999-07-20 Interface Products Co., Inc. Landing control system
US6128116A (en) * 1997-12-31 2000-10-03 Otis Elevator Company Retroreflective elevator hoistway position sensor
JPH11209029A (en) * 1998-01-23 1999-08-03 Otis Elevator Co Guide rail for elevator
US6627483B2 (en) * 1998-12-04 2003-09-30 Formfactor, Inc. Method for mounting an electronic component
DE19944373A1 (en) * 1999-09-16 2001-03-22 Degussa Catalyst and process for the preparation of color-reduced isocyanurate-containing polyisocyanants
US6393360B1 (en) * 1999-11-17 2002-05-21 Erjian Ma System for automatically locating and directing a vehicle
DE10047762A1 (en) * 2000-09-27 2002-04-11 Degussa Powdery, water-dispersible blocked polyisocyanate adducts, a process for their preparation and their use
US6435315B1 (en) * 2000-12-11 2002-08-20 Otis Elevator Company Absolute position reference system for an elevator
SG96681A1 (en) * 2001-02-20 2003-06-16 Inventio Ag Method of generating hoistway information to serve an elevator control
DE10163783A1 (en) * 2001-12-22 2003-07-03 Degussa Process for the preparation of epoxidized polyalkenylenes and use of phosphonic acids and their derivatives as catalysts
DE10212706A1 (en) * 2002-03-21 2003-10-02 Degussa Unsaturated, amorphous polyester based on certain dicidol isomers
US6622827B1 (en) * 2002-05-10 2003-09-23 Anna Disieno Elevator tape guide with tape slot redundancy
DE10242265A1 (en) * 2002-09-12 2004-03-25 Degussa Ag Adhesion-improving additive made from an unsaturated, amorphous polyester
DE10258574A1 (en) * 2002-12-14 2004-07-01 Degussa Ag Polymer modified resins
DE10261005A1 (en) * 2002-12-24 2004-07-08 Degussa Ag Dispersions of amorphous, urethanized unsaturated polyester resins based on certain dicidol isomers
DE10261006A1 (en) * 2002-12-24 2004-07-08 Degussa Ag Dispersions of amorphous, unsaturated polyester resins based on certain dicidol isomers
DE10322845A1 (en) * 2003-05-19 2004-12-16 Degussa Ag Branched, amorphous macropolyols based on polyester with a narrow molecular weight distribution
DE10326893A1 (en) * 2003-06-14 2004-12-30 Degussa Ag Resins based on ketones and aldehydes with improved solubility properties and low color numbers
DE10338561A1 (en) * 2003-08-22 2005-04-14 Degussa Ag Ketone-aldehyde resins, especially low water content cyclohexanone-formaldehyde resins with high thermal and yellowing resistance, and a method of preparation and use
DE10338560A1 (en) * 2003-08-22 2005-03-17 Degussa Ag Radiation-curable resins based on hydrogenated ketone and phenol-aldehyde resins and a process for their preparation
DE10338562A1 (en) * 2003-08-22 2005-03-17 Degussa Ag Radiation-curable resins based on ketone and / or urea-aldehyde resins and a process for their preparation
DE10338559A1 (en) * 2003-08-22 2005-04-14 Degussa Ag Process for the preparation of ketone-formaldehyde resins

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02096788A1 *

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CN1512955A (en) 2004-07-14
US20040129504A1 (en) 2004-07-08
EP1390284B1 (en) 2005-11-09
DE50204874D1 (en) 2005-12-15
CA2446419A1 (en) 2002-12-05
WO2002096788A1 (en) 2002-12-05
US6886667B2 (en) 2005-05-03
HK1065020A1 (en) 2005-02-08
CA2446419C (en) 2010-07-20
CN1233543C (en) 2005-12-28
TWI257369B (en) 2006-07-01

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