EP1077195B1 - Rope length gauge - Google Patents

Rope length gauge Download PDF

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Publication number
EP1077195B1
EP1077195B1 EP00116347A EP00116347A EP1077195B1 EP 1077195 B1 EP1077195 B1 EP 1077195B1 EP 00116347 A EP00116347 A EP 00116347A EP 00116347 A EP00116347 A EP 00116347A EP 1077195 B1 EP1077195 B1 EP 1077195B1
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EP
European Patent Office
Prior art keywords
rope
measuring
housing
set forth
passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00116347A
Other languages
German (de)
French (fr)
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EP1077195A1 (en
Inventor
Klaus-Dieter Schulz
Thomas Neumann
Uwe Donner
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.)
Fernsteuergeraete Kurt Oelsch GmbH
Original Assignee
Fernsteuergeraete Kurt Oelsch GmbH
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Publication date
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Publication of EP1077195A1 publication Critical patent/EP1077195A1/en
Application granted granted Critical
Publication of EP1077195B1 publication Critical patent/EP1077195B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/12—Tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/40—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable
    • B65H75/42—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools, machines or vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4402—Guiding arrangements to control paying-out and re-storing of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/511—Processing surface of handled material upon transport or guiding thereof, e.g. cleaning
    • B65H2301/5115—Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/35—Ropes, lines

Abstract

The cable (32) dispenser has air gaps (48, 50) between the cable and inner (30) and outer (40) dispensing channels. These are connected by a central chamber (41) into which compressed air is fed via inlets (42, 44).

Description

Technisches GebietTechnical field

Die Erfindung betrifft einen Seillängengeber mit einem Gehäuse und einem Meßseilausgang für das Meßseil.The invention relates to a cable length sensor with a housing and a Measuring rope exit for the measuring rope.

Seillängengeber sollen ein Meßsignal nach Maßgabe eines Hubes oder einer Wegstrecke liefern. Zu diesem Zweck ist ein Meßseil auf eine Seiltrommel aufgewickelt. Das Meßseil ist an einem Teil angebracht, dessen Hub oder Weg gemessen werden soll, beispielsweise an einem Teleskopausleger eines Krans. Mit der Bewegung des Teils wird das Meßseil von der Seiltrommel gegen einen Rückstellantrieb abgewickelt. Aus der dabei auftretenden Bewegung der Seiltrommel wird ein elektrisches Signal gewonnen. Bei der Abwicklung des Meßseils dreht sich die Seiltrommel. Über ein Gewinde wird diese Drehung in eine Axialbewegung umgesetzt. Das gewährleistet eine definierte Aufund Abwicklung des Meßseils und stellt sicher, daß das Meßseil stets an der gleichen Stelle durch einen Meßseilausgang aus dem Gehäuse des Seillängengebers austritt.Rope length transmitters are intended to provide a measurement signal based on a stroke or a distance deliver. For this purpose, a measuring rope is wound on a rope drum. The Measuring rope is attached to a part whose stroke or path is to be measured, for example on a telescopic boom of a crane. With the movement of the part the measuring cable is unwound from the cable drum against a return drive. From the when the cable drum moves, an electrical signal is obtained. The rope drum rotates when the measuring rope is unwound. About a thread converted this rotation into an axial movement. This ensures a defined opening and closing Processing of the measuring cable and ensures that the measuring cable is always on the same Place emerges from the housing of the cable length sensor through a measuring cable outlet.

Zugrundeliegender Stand der TechnikUnderlying state of the art

Ein solcher Seillängengeber ist beispielsweise bekannt durch die EP 0 778 239 B1.Such a rope length transmitter is known, for example, from EP 0 778 239 B1.

Seillängengeber werden häufig in rauher und staubiger Umgebung eingesetzt. Dabei setzt sich Schmutz an dem Meßseil fest. Wenn dieser Schmutz mit dem Meßseil in das Gehäuse des Seillängengebers eingezogen wird, beeinträchtigt er die Funktion des Seillängengebers. Ebenso kritisch ist Nässe. Wenn das Meßseil bei Regen naß wird, dann wird das daran haftende Wasser mit dem Meßseil in das Gehäuse eingezogen. Feuchtigkeit schlägt sich in dem Inneren des Gehäuses nieder, die nicht wieder aus dem Gehäuse austreten kann. Mit der Zeit füllt sich das Gehäuse mit Wasser. Durch das DE 297 16 524 U, das dem Oberbegriff des Anspruchs 1 entspricht, ist eine am Meßseilausgang vorgesehene mechanische Abstreifvorrichtung bekannt, bei welcher Schmutz und Feuchtigkeit mechanisch von dem Meßseil abgestreift wird. Durch das DE 92 07 212 U ist ebenfalls eine am Meßseilausgang vorgesehene mechanische Abstreifvorrichtung bekannt. Diese Abstreifvorrichtung besteht aus einer oder mehreren Abstreiferplatten, welche eine enge Durchlaßöffnung aufweisen, welche das Meßseil umschließt, und welche Fremdstoffe vom Meßseil abstreifen. Der Meßseilausgang kann aber nicht so eng gemacht werden, daß eine Mitnahme von Schmutz und Feuchtigkeit von dem Meßseil durch den Luftspalt zwischen Meßseilausgang und Meßseil hindurch ausgeschlossen würde.Rope length transmitters are often used in harsh and dusty environments. Doing so dirt sticks to the measuring rope. If this dirt with the measuring rope in the Housing of the cable length sensor is retracted, it affects the function of the Rope length encoder. Wetness is just as critical. If the measuring cable gets wet in the rain, then the water adhering to it is drawn into the housing with the measuring rope. Moisture condenses in the interior of the case, which does not come out of the Housing can leak. Over time, the case fills with water. By the DE 297 16 524 U, which corresponds to the preamble of claim 1, is a mechanical stripping device provided at the measuring cable outlet known at which dirt and moisture mechanically stripped from the measuring rope becomes. DE 92 07 212 U also provides one at the measuring cable outlet mechanical scraper known. This stripping device consists of a or more wiper plates, which have a narrow passage opening, which encloses the measuring rope, and which foreign substances are stripped from the measuring rope. The Measuring rope exit can not be made so tight that a take of Dirt and moisture from the measuring rope through the air gap between Measuring rope exit and measuring rope would be excluded.

Offenbarung der ErfindungDisclosure of the invention

Der Erfindung liegt daher die Aufgabe zu Grunde, einen Meßseilausgang so auszubilden, daß das Meßseil im wesentlichen keinen Schmutz und keine Feuchtigkeit durch den Meßseilausgang in das Gehäuse des Seillängengebers mitnehmen kann.The invention is therefore based on the object of designing a measuring cable outlet in such a way that that the measuring cable essentially no dirt and no moisture through the Take the measuring cable outlet into the housing of the cable length sensor.

Erfindungsgemäß wird diese Aufgabe gelöst durch Mittel zur Erzeugung eines nach außen gerichteten Druckluftstromes um das Meßseil herum.According to the invention, this object is achieved by means of generating an after outward compressed air flow around the measuring rope.

Vorteilhafterweise wird dieser Druckluftstrom dadurch erzeugt, daß das Meßseil mit Luftspalt nacheinander durch einen inneren und einen äußeren Durchgang geführt ist, zwischen den beiden Durchgängen eine Kammer gebildet und über einen Drucklufteinlaß Druckluft in diese Kammer einleitbar ist.This compressed air flow is advantageously generated in that the measuring cable with Air gap is passed successively through an inner and an outer passage, a chamber is formed between the two passages and via a compressed air inlet Compressed air can be introduced into this chamber.

Dann tritt durch den äußeren Durchgang um das Meßseil herum ein Druckluftstrom aus, der Schmutz und Nässe von dem Meßseil abbläst. Es hat sich gezeigt, daß sich durch diese Maßnahme der Transport von Schmutz und Nässe in das Gehäuse des Seillängengebers weitestgehend verhindern läßt.Then a stream of compressed air emerges through the outer passage around the measuring rope, the dirt and moisture blows off the measuring cable. It has been shown that through this measure of transporting dirt and moisture into the housing of the Rope encoder can be largely prevented.

Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Embodiments of the invention are the subject of the dependent claims.

Zwei Ausführungsbeispiele der Erfindung sind nachstehend unter Bezugnahme auf die zugehörigen Zeichnungen näher erläutert.Two embodiments of the invention are described below with reference to FIG associated drawings explained in more detail.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Fig.1Fig.1
zeigt einen Längsschnitt durch einen Meßseilausgang,der an ein Gehäuse des Seillängengebers ansetzbar ist.shows a longitudinal section through a measuring cable outlet connected to a housing the rope length sensor can be used.
Fig.2Fig.2
zeigt eine Vorderansicht des Meßseilausganges.shows a front view of the measuring cable outlet.
Fig.3Figure 3
ist eine perspektivische Darstellung des Meßseilausganges.is a perspective view of the measuring cable outlet.
Fig,4Fig, 4
zeigt eine perspektivische Darstellung eines Seillängengebers mit einer abgewandelten Form der Mittel zur Erzeugung eines Druckluftstromes am Meßseilausgang.shows a perspective view of a cable length sensor with a modified form of the means for generating a compressed air stream on Meßseilausgang.
Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention

Der Meßseilausgang von Fig. bis 3 bildet ein Zubehörteil, das wahlweise an ein mit einer Seilaustrittsöffnung versehenes (nicht dargestelltes) Gehäuse eines Seillängengebers angesetzt werden kann. Der Meßseilausgang kann natürlich auch einen integralen Bestandteil des Gehäuses bilden.The measuring cable outlet from Fig. To 3 forms an accessory that can optionally be connected to a a cable outlet opening (not shown) housing a Rope length sensor can be used. The measuring cable outlet can of course also be one form an integral part of the housing.

Der Meßseilausgang weist ein Vorsatzgehäuse 10 auf, das mittels eines Flansches 12 an das Gehäuse des Seillängengebers anschraubbar ist. Das Vorsatzgehäuse 10 weist einen geraden, zentralen Durchgangskanal 14 auf. Der Durchgangskanal 14 bildet auf der inneren, dem Seillängengeber zugewandten Stirnfläche des Vorsatzgehäuses 10 und auf der äußeren Stirnfläche des Vorsatzgehäuses je eine Erweiterung 16 bzw. 18.The measuring cable outlet has an attachment housing 10 which is attached by means of a flange 12 the housing of the cable length sensor can be screwed on. The front housing 10 has one straight, central through channel 14. The through channel 14 forms on the inner end face of the front housing 10 facing the cable length sensor and an extension 16 or 18 on the outer end face of the front housing.

In die Erweiterung 16 ragt ein Seilausgangsstück 20 hinein, das an dem Gehäuse des Seillängengebers anbringbar ist (oder -alternativ- einen Teil dieses Gehäuses bildet). Das Seilausgangsstück 20 bildet eine Hülse, die sich ausgangsseitig konisch verjüngt und dort mit gegenüberliegenden Abflachungen 22 und 24 versehen ist. Ein solches Seilausgangsstück ist als Teil des Gehäuses in Fig.6 der EP 0 778 239 B1 erkennbar. Das Seilausgangsstück 20 enthält ein sphärisches Lager 26. In dem sphärischen Lager 26 ist eine Kugel 28 gelagert. Die Kugel weist einen diametralen Durchgang 30 auf. Durch diesen Durchgang 30 ist das Meßseil 32 hindurchgeführt. Auf dieses vom Gehäuse des Seillängengebers vorstehende Seilausgangsstück 20 ist das Vorsatzgehäuse 10 mit der Erweiterung 16 des Durchgangskanals 14 aufgesetzt.In the extension 16 extends a rope exit piece 20, which on the housing of the Rope length sensor is attachable (or - alternatively - forms part of this housing). The Rope outlet piece 20 forms a sleeve which tapers conically on the outlet side and there is provided with opposite flats 22 and 24. Such one Rope exit piece can be seen as part of the housing in Fig. 6 of EP 0 778 239 B1. The Rope exit piece 20 contains a spherical bearing 26. In the spherical bearing 26 is a ball 28 stored. The ball has a diametrical passage 30. By the measuring cable 32 is passed through this passage 30. On this from the housing of the Rope output piece 20 protruding cable length is the front housing 10 with the Extension 16 of the through channel 14 is attached.

In die Erweiterung 18 ist ein ähnliches hülsenförmiges Seilausgangsstück 34 eingesetzt und durch einen Stift 35 gesichert. Das Seilausgangsstück 34 enthält ein sphärisches Lager 36. In dem sphärischen Lager 36 ist eine Kugel 38 gelagert. Die Kugel 38 weist einen diametralen Durchgang 40 auf. Das Meßseil 32 ist auch durch den Durchgang 40 hindurchgeführt.A similar sleeve-shaped cable outlet piece 34 is inserted into the extension 18 and secured by a pin 35. The rope exit piece 34 contains a spherical one Bearing 36. A ball 38 is mounted in the spherical bearing 36. The ball 38 has a diametrical passage 40. The measuring cable 32 is also through the passage 40 passed.

Der Abschnitt des Durchgangskanals 14 zwischen den Kugeln 28 und 38 bildet eine Kammer 41The section of the passage 14 between the balls 28 and 38 forms one Chamber 41

In die Kammer 41 mündet ein radialer Kanal 42. Der Kanal 42 steht mit einem Druckluftanschluß 44 in Verbindung. Dem Drockluftanschluß ist eine Drossel vorgeschaltet.A radial channel 42 opens into the chamber 41. The channel 42 stands with one Compressed air connection 44 in connection. The Drockair connection is a throttle upstream.

Der beschriebene Meßseilausgang wirkt wie folgt:The measuring cable outlet described works as follows:

Der zwischen dem Durchgang 40 und dem Meßseil 32 gebildete Luftspalt 48 ist etwas größer als der zwischem dem Durchgang 30 und dem Meßseil 32 gebildete Luftspalt 50. Wenn im Betrieb Druckluft auf den Druckluftanschluß 44 gegeben wird, dann entsteht überwiegend ein Druckluftstrom durch den Luftspalt 48. In der Kammer 41 entsteht ein reduzierter Überdruck, der sich durch einen Strömungsteiler mit (nicht dargestellter) vorgeschalteter Drossel und Luftspalt 48 ergibt.Der reduzierte Überdruck baut sich auch innerhalb des Gehäuses des Seillängengebers auf, ist aber für das Gehäuse unkritisch. Durch den Druckluftstrom, der um das Meßseil 32 herum (Fig.3) wird Schmutz und Nässe beim Einziehen von dem Meßseil 32 abgeblasen.The air gap 48 formed between the passage 40 and the measuring cable 32 is somewhat larger than the air gap 50 formed between the passage 30 and the measuring cable 32. If compressed air is supplied to the compressed air connection 44 during operation, then arises predominantly a flow of compressed air through the air gap 48 reduced overpressure, which is caused by a flow divider with (not shown) upstream throttle and air gap 48 results. The reduced excess pressure also builds up inside the housing of the cable length sensor, but is not critical for the housing. Due to the compressed air flow around the measuring cable 32 (Fig.3) dirt and Blown off moisture when pulling in the measuring cable 32.

Die Kugeln 28 und 38 gewährleisten eine definierte Führung des Meßseils 32 und damit eine definierte gemessene Seillänge, wenn das Meßseil schräg zur Achse des Meßseilausgangs abgezogen wird.The balls 28 and 38 ensure a defined guidance of the measuring cable 32 and thus a defined measured rope length if the measuring rope is inclined to the axis of the Measuring cable output is withdrawn.

Fig.4 zeigt eine andere Ausführung zur Erzeugung eines Druckluftstromes am Meßseilausgang.Fig.4 shows another embodiment for generating a compressed air flow on Meßseilausgang.

In Fig.4 ist mit 52 das Gehäuse eines Seillängengebers bezeichnet. Aus dem Gehäuse 52 wird ein Meßseil 54 aus einem Meßseilausgang 56 abgezogen. Der Meßseilausgang 56 ist ähnlich aufgebaut wie das an dem Gehäuse sitzende Seilausgangsstück 20 bei der Ausführung von Fig.1 bis 3. Der Luftspalt um das Meßseil 54 herum ist vorteilhafterweise etwas breiter als der Luftspalt 50 zwischen Meßseil 32 und Durchgang 30 in Fig.1. An dem Gehäuse 52 sitzt ein Druckluftanschluß 58. Über den Druckluftanschluß 58 kann das Gehäuse 52 unter Überdruck gesetzt werden. Druckluft strömt um das Meßseil 54 herum aus dem Luftspalt heraus. Dieser Luftstrom bläst ebenfalls Schmutz und Feuchtigkeit von dem Meßseil 54 ab. In dem Druckluftanschluß 58 ist eine einstellbare Drosselschraube 60 angeordnet. Durch diese Drosselschraube 60 kann der Überdruck im Gehäuse 52 eingestellt werden. Der von der Drosselschraube 60 bestimmte Drosselquerschnitt und der Luftspalt am Meßseilausgang 56 bilden einen Stromteiler. An dem Drucklufteinlaß 58 sitzt weiterhin ein Überdruckventil 62, welches bei unzulässigem Überdruck im Gehäuse abbläst. Auf diese Weise wird ein unzulässiger Überdruck im Gehäuse 52 vermieden, der das Gehäuse 52 beschädigen könnte.In Figure 4, 52 denotes the housing of a cable length sensor. From the housing 52 a measuring cable 54 is withdrawn from a measuring cable outlet 56. The measuring cable outlet 56 is constructed similarly to the cable outlet piece 20 seated on the housing Execution of Fig.1 to 3. The air gap around the measuring cable 54 is advantageously somewhat wider than the air gap 50 between the measuring cable 32 and the passage 30 in Fig. 1. A compressed air connection 58 sits on the housing 52 Compressed air connection 58, the housing 52 can be pressurized. compressed air flows around the measuring cable 54 out of the air gap. This airflow blows also dirt and moisture from the measuring cable 54. In the compressed air connection 58, an adjustable throttle screw 60 is arranged. Through this throttle screw 60 the overpressure in the housing 52 can be adjusted. The throttle screw 60 certain throttle cross section and the air gap at the measuring cable outlet 56 form one Flow divider. At the compressed air inlet 58 is still a pressure relief valve 62, which blows off in the case of impermissible overpressure. In this way, an inadmissible Avoid excess pressure in the housing 52, which could damage the housing 52.

Claims (10)

  1. Rope length transmitter having a housing and a measuring rope exit for the measuring rope (32), characterized by means for generating a compressed-air flow directed outwards around the measuring rope.
  2. Rope length transmitter as set forth in claim 1, characterized in that the measuring rope (32) is guided with air gap (50;48) successively through an inner and an outer passage (30;40), a chamber (41) is formed between the two passages (30;40) and compressed-air is adapted to be introduced into this chamber (41) through a compressed-air inlet (42,44).
  3. Rope length transmitter as set forth in claim 2, characterized in that the air gap (48) between the measuring rope (32) and the outer passage (40) is larger than the air gap (50) between the measuring rope (32) and the inner passage (30).
  4. Rope length transmitter as set forth in claim 3, characterized in that a throttle (46) is provided in the compressed-air inlet (42).
  5. Rope length transmitter as set forth in any one of the claims 1 to 4, characterized in that the two passages (30,40) are formed by diametrical passages in each a ball (28;38), the balls (28;38) being mounted in spherical bearings (26;36).
  6. Rope length transmitter as set forth in claim 5, characterized in that the two balls (28;38) are held in their bearings (26,36) spaced from each other in a straight through-passage (14), the chamber (41) being formed by the part of the through-passage (14) between the balls (28,38).
  7. Rope length transmitter as set forth in claim 6, characterized in that the spherical bearings (26;36) are located in sleeve-shaped rope exit elements (20;34), which in turn are located in enlargements (16;18) of the through-passage (14).
  8. Rope length transmitter as set forth in claim 1, characterized in that the an air gap is formed in the measuring rope exit (56) between the wall of a passage for the measuring rope (54) and the measuring rope (54) and the housing (52) is provided with a compressed-air connection (58), through which an excess pressure is adapted to be generated in the housing (52).
  9. Rope length transmitter as set forth in claim 8, characterized in that adjustable throttle means (60) are provided at the compressed-air connection (58).
  10. Rope length transmitter as set forth in claim 8 or 9, characterized in that a pressure control valve (62) is provided at the housing (52).
EP00116347A 1999-08-19 2000-07-28 Rope length gauge Expired - Lifetime EP1077195B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19939223 1999-08-19
DE19939223A DE19939223C1 (en) 1999-08-19 1999-08-19 Rope length encoder

Publications (2)

Publication Number Publication Date
EP1077195A1 EP1077195A1 (en) 2001-02-21
EP1077195B1 true EP1077195B1 (en) 2003-10-08

Family

ID=7918836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00116347A Expired - Lifetime EP1077195B1 (en) 1999-08-19 2000-07-28 Rope length gauge

Country Status (3)

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EP (1) EP1077195B1 (en)
AT (1) ATE251587T1 (en)
DE (1) DE19939223C1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3803919A1 (en) * 1988-02-09 1989-08-17 Interatom Device for removing coolant samples from a nuclear reactor container
DE9207212U1 (en) * 1992-05-27 1993-09-23 Asm Automation Sensorik Messte STRIP DEVICE FOR FOREIGN MATERIALS ADHESIVE TO ROPES OR TAPES, ESPECIALLY FOR USE ON TRAVEL AND SPEED SENSORS ACCORDING TO MEASURING ROPE OR MEASURING TAPE PRINCIPLE
DE29519809U1 (en) * 1995-12-04 1996-03-28 Oelsch Fernsteuergeraete Rope drum arrangement in a rope length sensor with a longitudinally movable rope drum
DE29716524U1 (en) * 1997-09-05 1998-02-12 Oelsch Fernsteuergeraete Scraper device for rope length sensor

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Publication number Publication date
EP1077195A1 (en) 2001-02-21
DE19939223C1 (en) 2001-03-08
ATE251587T1 (en) 2003-10-15

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