EP0896107B1 - Tensioning bundle and method and device for producing same - Google Patents

Tensioning bundle and method and device for producing same Download PDF

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Publication number
EP0896107B1
EP0896107B1 EP19980890225 EP98890225A EP0896107B1 EP 0896107 B1 EP0896107 B1 EP 0896107B1 EP 19980890225 EP19980890225 EP 19980890225 EP 98890225 A EP98890225 A EP 98890225A EP 0896107 B1 EP0896107 B1 EP 0896107B1
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EP
European Patent Office
Prior art keywords
plastics
hose
open
tube
tensioning elements
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
EP19980890225
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German (de)
French (fr)
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EP0896107A3 (en
EP0896107A2 (en
Inventor
Hermann Dipl.-Ing. Thal
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to AT98890225T priority Critical patent/ATE319892T1/en
Priority to DE29824481U priority patent/DE29824481U1/en
Publication of EP0896107A2 publication Critical patent/EP0896107A2/en
Publication of EP0896107A3 publication Critical patent/EP0896107A3/en
Application granted granted Critical
Publication of EP0896107B1 publication Critical patent/EP0896107B1/en
Anticipated expiration legal-status Critical
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions

Definitions

  • the invention relates to a method for producing the sheathed clamping beam.
  • the invention also includes an apparatus for carrying out the method.
  • DE 2 944 878 A discloses a method for applying a metallic protective cover to prestressing steels.
  • the object of the invention while avoiding the aforementioned drawback, to produce a clamping bundle, which has a sheath that can be applied by simple means without high cost on the clamping beam.
  • the tensioning beam is produced by the method according to claim 1 with simple means and low labor.
  • the measure according to claim 5 forms a preferred development the device according to claim 4.
  • the device shown in a simplified representation in FIGS. 2a and 2b has on a longitudinally extending frame 1 or table or the like.
  • a drive device 2 for guiding and locomotion of a commercial plastic tube 3 in any length, which is oval in cross-section with rounded ends, as well as preferably mutually parallel tendons 4, in the form of monolayers, the most, as shown in FIG. 1, with a corrosion protection 5 in the form of grease, a plastic jacket or the like. can be provided.
  • a common drive for the tendons 4 and the plastic tube 3 is provided, which consists in the present case of several consecutive vertical rolls 2A, which are rotatably mounted, wherein at least one of them, preferably the output side, is driven.
  • the drive rollers 2A guide the tendons 4 above the plastic tube 3, so that the plastic tube 3 and the tendons 4 are moved at the same speed in the direction of the arrow A one above the other, as shown in Fig. 2A.
  • rollers 6 Following the drive device 2 are superposed rollers 6, rollers or the like. for guiding the plastic tube 3 of a subsequent cutting device 7 designed as a rotating cutter disc, which cuts open the highly guided plastic tube, as shown in FIG. 3B, at the apex of its rounded end.
  • a subsequent cutting device 7 designed as a rotating cutter disc, which cuts open the highly guided plastic tube, as shown in FIG. 3B, at the apex of its rounded end.
  • a gap or folding device 8 is provided, through which the incision or Gap 9 of the plastic tube 3, as shown in FIG. 3C, is widened. Expediently, the expansion takes place only in the region of the elasticity of the tube material.
  • a deflection channel 10 is provided which deflects the tendons 4 down and introduces through the widened slot 9 in the plastic tube 3, whereupon the tube 3, due to the spring force closes and then, as illustrated in Fig. 2b, is welded by a welding device 12, so that a band-shaped clamping beam of Fig. 3d is formed.
  • the spring force of the pipe material for closing the plastic pipe 3 is not sufficient, can be provided on the welding device 12 laterally acting on the pipe wall pressure rollers or pressure rollers. This measure can be done as a precaution, if the spring force is sufficient.
  • a means for supplying cement is provided, so that the spaces between the tendons and the plastic pipe 3, as shown in FIG. 1 and FIG. 3e, are provided with a filling material or a filling 11.
  • cement of course, plastic or a fat-like mass or the like. be used as filler.
  • the arrangement of the device for supplying cement may also be provided in front of the welding device.
  • At least one feed lance may be provided for introducing the filling material, which is introduced into the plastic tube 3 or the plastic tube prior to the welding of the cut or gap 9, so that this or this is guided past the feed lances and filled with the filling material.
  • the lance can extend up to or in the area of the weld or behind. Instead of such a supply of the filling material, this can also be introduced as a prefabricated band with the tendons 4 in the cut or slotted plastic tube 3 or in the cut or slit plastic tube.
  • drive rollers 13 may be provided, which feed the finished tensioning bundle according to Fig. 3f of a reel, not shown.
  • Hiebei encloses the coat or the plastic tube 3 or the plastic tube preferably the tendons, leaving a narrow gap at best to the extent of manufacturing tolerance.
  • guide rollers 14 may be provided along the guide track of the plastic tube 3 or the plastic tube in the region of the welding device.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung des ummantelten Spannbündels.The invention relates to a method for producing the sheathed clamping beam.

Die Erfindung umfaßt auch eine Vorrichtung zur Durchführung des Verfahrens.The invention also includes an apparatus for carrying out the method.

Bei Spannbündeln dieser Art ist es bekannt, die Ummantelung aufzuextrudieren. Dieses Verfahren ist verhältnismäßig kostenaufwendig, da die hiefür erforderlichen Extruder mit hohen Anschaffungskosten verbunden sind.In clamping bundles of this type, it is known to extrude the casing. This method is relatively expensive, since the extruders required for this are associated with high acquisition costs.

Durch die DE 196 06 574 A1 ist ein Verfahren zum Aufbringen einer rohrförmigen Ummantelung auf ein Zugglied bekannt geworden, wobei in einem ersten Arbeitsschritt das Rohr zunächst durch einen schraubenlinienförmigen Schnitt entlang seines Umfanges aufgetrennt wird. Dadurch entsteht ein Band, mit welchem das Zugglied schraubenlinienförmig umwickelt wird, wonach die Kanten des Schnitts verschweißt werden. Dieses Verfahren ist mit hohem Arbeits- und Zeitaufwand verbunden.From DE 196 06 574 A1 a method for applying a tubular sheath on a tension member has become known, wherein in a first step, the tube is first separated by a helical cut along its circumference. This creates a band with which the tension member is wrapped helically, after which the edges of the cut are welded. This process involves a great deal of work and time.

Die DE 2 944 878 A offenbart ein Verfahren zum Aufbringen einer metallischen Schutzhülle auf Spannstähle.DE 2 944 878 A discloses a method for applying a metallic protective cover to prestressing steels.

Aufgabe der Erfindung ist unter Vermeidung des zuvor erwähnten Nachteiles, ein Spannbündel herzustellen, welches eine Ummantelung hat, die mit einfachen Mitteln ohne hohen Kostenaufwand auf das Spannbündel aufgebracht werden kann.The object of the invention, while avoiding the aforementioned drawback, to produce a clamping bundle, which has a sheath that can be applied by simple means without high cost on the clamping beam.

Diese Aufgabe wird erfindungsgemäß durch die Maßnahme nach dem kennzeichnenden Teil des Anspruches 1 gelöst.This object is achieved by the measure according to the characterizing part of claim 1.

Das Spannbündel wird durch das Verfahren nach Anspruch 1 mit einfachen Mitteln und geringem Arbeitsaufwand hergestellt.The tensioning beam is produced by the method according to claim 1 with simple means and low labor.

Durch die Maßnahmen nach den Ansprüchen 2 und 3 ergeben sich vorteilhafte Weiterausbildungen des Verfahrens nach Anspruch 1.By the measures according to claims 2 and 3, advantageous further developments of the method according to claim 1.

Zur Durchführung des Verfahrens wird eine Vorrichtung nach Anspruch 4 vorgeschlagen, welche sich durch einfachen Aufbau erweist.For carrying out the method, a device according to claim 4 is proposed, which proves to be simple in construction.

Die Maßnahme nach Anspruch 5 bildet eine bevorzugte Weiterausbildung der Vorrichtung nach Anspruch 4.The measure according to claim 5 forms a preferred development the device according to claim 4.

Weitere Einzelheiten der Erfindung werden anhand der Zeichnung näher erläutert, in welcher

  • Fig. 1 einen Querschnitt eines fertigen Spannbündels, die
  • Fig. 2a und 2b eine Ausführungsform einer Vorrichtung zur Herstellung des Spannbündels nach Fig. 1 und die
  • Fig. 3A bis 3F Schnitte durch die Elemente des Spannbündels in den einzelnen Herstellungsphasen nach den Linien A-A bzw. B-B bzw. C-C bzw. D-D bzw. E-E bzw. F-F der Fig. 2a bzw 2b zeigen.
Further details of the invention will be explained in more detail with reference to the drawing, in which
  • Fig. 1 shows a cross section of a finished clamping beam, the
  • Fig. 2a and 2b, an embodiment of an apparatus for producing the tensioning beam of FIG. 1 and the
  • 3A to 3F show sections through the elements of the clamping beam in the individual production phases along the lines AA or BB or CC or DD or EE or FF of FIGS. 2a and 2b.

Die in den Fig. 2a und 2b in vereinfachter Darstellung gezeigte Vorrichtung besitzt auf einem sich längserstreckenden Gestell 1 bzw. Tisch od.dgl. eine Antriebsvorrichtung 2 zur Führung und Fortbewegung eines handelsüblichen Kunststoffrohres 3 in beliebiger Länge, welches im Querschnitt oval mit abgerundeten Enden ist, sowie von vorzugsweise parallel zueinander liegenden Spanngliedern 4, in Form von Monolitzen, die allenfalls, wie Fig. 1 zeigt, mit einem Korrosionsschutz 5 in Form von Fett, einer Kunststoffummantelung od.dgl. versehen sein können. Im vorliegenden Fall ist ein gemeinsamer Antrieb für die Spannglieder 4 und das Kunststoffrohr 3 vorgesehen, der im vorliegenden Fall aus mehreren aufeinanderfolgenden lotrechten Walzen 2A besteht, welche drehbar gelagert sind, wobei mindestens eine derselben, vorzugsweise die ausgangsseitige, angetrieben ist. Die Antriebswalzen 2A führen die Spannglieder 4 oberhalb des Kunststoffrohres 3, sodaß das Kunststoffrohr 3 und die Spannglieder 4 mit gleicher Geschwindigkeit in der Richtung des Pfeiles A übereinander fortbewegt werden, wie in Fig. 2A dargestellt ist.The device shown in a simplified representation in FIGS. 2a and 2b has on a longitudinally extending frame 1 or table or the like. a drive device 2 for guiding and locomotion of a commercial plastic tube 3 in any length, which is oval in cross-section with rounded ends, as well as preferably mutually parallel tendons 4, in the form of monolayers, the most, as shown in FIG. 1, with a corrosion protection 5 in the form of grease, a plastic jacket or the like. can be provided. In the present case, a common drive for the tendons 4 and the plastic tube 3 is provided, which consists in the present case of several consecutive vertical rolls 2A, which are rotatably mounted, wherein at least one of them, preferably the output side, is driven. The drive rollers 2A guide the tendons 4 above the plastic tube 3, so that the plastic tube 3 and the tendons 4 are moved at the same speed in the direction of the arrow A one above the other, as shown in Fig. 2A.

Im Anschluß an die Antriebsvorrichtung 2 sind übereinanderliegende Rollen 6, Walzen od.dgl. zur Führung des Kunststoffrohres 3 einer anschließenden als rotierenden Messerscheibe ausgebildeten Schneidvorrichtung 7 vorgesehen, welche das hochgeführte Kunststoffrohr, wie Fig. 3B zeigt, im Scheitel seines abgerundeten Endes aufschneidet.Following the drive device 2 are superposed rollers 6, rollers or the like. for guiding the plastic tube 3 of a subsequent cutting device 7 designed as a rotating cutter disc, which cuts open the highly guided plastic tube, as shown in FIG. 3B, at the apex of its rounded end.

Im Anschluß an die Schneidvorrichtung 7 ist eine Spalt- oder Klappvorrichtung 8 vorgesehen, durch welche der Einschnitt oder Spalt 9 des Kunststoffrohres 3, wie Fig. 3C zeigt, aufgeweitet wird. Zweckmäßig erfolgt die Aufweitung nur im Bereich der Elastizität des Rohrmaterials.Subsequent to the cutting device 7, a gap or folding device 8 is provided, through which the incision or Gap 9 of the plastic tube 3, as shown in FIG. 3C, is widened. Expediently, the expansion takes place only in the region of the elasticity of the tube material.

Zum Einführen der Spannglieder 4 in das aufgeweitete offene Kunststoffrohr 3 ist ein Umlenkkanal 10 vorgesehen, welcher die Spannglieder 4 nach unten ablenkt und durch den aufgeweiteten Schlitz 9 in das Kunststoffrohr 3 einführt, worauf sich das Rohr 3, bedingt durch die Federkraft schließt und hierauf, wie in Fig. 2b veranschaulicht ist, durch eine Schweißeinrichtung 12 zugeschweißt wird, sodaß ein bandförmiges Spannbündel nach Fig. 3d entsteht.For introducing the tendons 4 in the expanded open plastic tube 3, a deflection channel 10 is provided which deflects the tendons 4 down and introduces through the widened slot 9 in the plastic tube 3, whereupon the tube 3, due to the spring force closes and then, as illustrated in Fig. 2b, is welded by a welding device 12, so that a band-shaped clamping beam of Fig. 3d is formed.

Falls die Federkraft des Rohrmaterials zum Schließen des Kunststoffrohres 3 nicht ausreicht, können auf der Schweißeinrichtung 12 seitlich auf die Rohrwand einwirkende Druckrollen oder Druckwalzen vorgesehen sein. Diese Maßnahme kann vorsorglich auch erfolgen, wenn die Federkraft ausreicht. Im Anschluß daran ist eine Einrichtung zur Zufuhr von Zement vorgesehen, sodaß die Zwischenräume zwischen den Spanngliedern und dem Kunststoffrohr 3, wie Fig. 1 bzw. Fig. 3e veranschaulicht, mit einem Füllmaterial bzw. einer Füllung 11 versehen sind. Anstelle von Zement kann natürlich Kunststoff oder eine fettartige Masse od.dgl. als Füllmaterial verwendet werden.If the spring force of the pipe material for closing the plastic pipe 3 is not sufficient, can be provided on the welding device 12 laterally acting on the pipe wall pressure rollers or pressure rollers. This measure can be done as a precaution, if the spring force is sufficient. Thereafter, a means for supplying cement is provided, so that the spaces between the tendons and the plastic pipe 3, as shown in FIG. 1 and FIG. 3e, are provided with a filling material or a filling 11. Instead of cement, of course, plastic or a fat-like mass or the like. be used as filler.

Selbstverständlich kann die Anordnung der Einrichtung zur Zufuhr von Zement auch vor der Schweißeinrichtung vorgesehen sein.Of course, the arrangement of the device for supplying cement may also be provided in front of the welding device.

Zum Einführen des Füllmaterials kann mindestens eine nicht dargestellte Zufuhrlanze vorgesehen sein, die vor dem Verschweißen des Schnittes oder Spaltes 9 in das Kunststoffrohr 3 bzw. den Kunststoffschlauch eingeführt wird, sodaß dieses bzw. dieser an den Zufuhrlanzen vorbeigeführt und mit dem Füllmaterial gefüllt wird. Hiebei kann sich die Lanze bis vor oder in den Bereich der Schweißung oder dahinter erstrecken. Anstelle einer solchen Zufuhr des Füllmaterials kann dieses auch als vorgefertigtes Band mit den Spanngliedern 4 in das aufgeschnittene oder aufgeschlitzte Kunststoffrohr 3 oder in den aufgeschnittenen oder aufgeschlitzten Kunststoffschlauch eingeführt werden.At least one feed lance (not shown) may be provided for introducing the filling material, which is introduced into the plastic tube 3 or the plastic tube prior to the welding of the cut or gap 9, so that this or this is guided past the feed lances and filled with the filling material. Hiebei the lance can extend up to or in the area of the weld or behind. Instead of such a supply of the filling material, this can also be introduced as a prefabricated band with the tendons 4 in the cut or slotted plastic tube 3 or in the cut or slit plastic tube.

Am Ende der Vorrichtung können Antriebswalzen 13 vorgesehen sein, welche das fertige Spannbündel nach Fig. 3f einer nicht dargestellten Aufhaspel zuführen. Hiebei umschließt der Mantel bzw. das Kunststoffrohr 3 bzw. der Kunststoffschlauch vorzugsweise die Spannglieder unter Freilassung eines engen Zwischenraumes allenfalls im Ausmaß der Herstellungstoleranz.At the end of the device drive rollers 13 may be provided, which feed the finished tensioning bundle according to Fig. 3f of a reel, not shown. Hiebei encloses the coat or the plastic tube 3 or the plastic tube preferably the tendons, leaving a narrow gap at best to the extent of manufacturing tolerance.

Zuletzt sei noch erwähnt, daß entlang der Führungsbahn des Kunststoffrohres 3 bzw. des Kunststoffschlauches im Bereich der Schweißeinrichtung weitere Führungsrollen 14 vorgesehen sein können.Finally, it should be mentioned that further guide rollers 14 may be provided along the guide track of the plastic tube 3 or the plastic tube in the region of the welding device.

Claims (5)

  1. A method of producing a tensioning bundle comprised of several tensioning elements (4) provided with a common jacket, characterised in that a plastics tube (3) or a plastics hose is cut open along its longitudinal extension and widened along the cutting area, the tensioning elements (4) are introduced in the open slit thus formed, subsequently the plastics hose, or the plastics tube, respectively, is closed, preferably by its inherent elasticity, whereupon the abutting cutting areas are welded together.
  2. A method according to claim 1, characterised in that prior to the welding procedure, at least one lance is introduced into the still open plastics tube (3) or still open plastics hose, respectively, through which lance a filling material (11) is introduced - in front of, into or behind the welding site - into the common jacket formed by the plastics tube, or plastics hose, respectively, around said tensioning elements (4).
  3. A method according to claim 1, characterised in that a filling material (11) having the form of a pre-fabricated strip is introduced with the tensioning elements (4) into the cut-open plastics hose, or into the cut-open plastics tube (3), respectively, so as to fill the spaces present between the tensioning elements (4) and between the latter and the jacket.
  4. An arrangement for carrying out the method according to claim 1, characterised in that rolls (13) successively arranged in longitudinal direction for commonly guiding and driving a plastics hose, or plastics tube (3), respectively, and tensioning elements (4), a rotating cutter disc (7) or the like for longitudinally cutting open said plastics tube (3), or plastics hose, respectively, a device (10) for introducing the tensioning elements (4) into the slit plastics hose, or the slit or cut-open plastics tube (3), respectively, and a device (12) for welding together said slit, or cut, respectively, in the plastics hose, or plastics tube (3), respectively, are provided.
  5. An arrangement according to claim 4, characterised in that the rollers (13) successively arranged in longitudinal direction are each mounted so as to be rotatable about a vertical axis, wherein at least the rollers (13) arranged on the exit side are driven.
EP19980890225 1997-08-04 1998-08-04 Tensioning bundle and method and device for producing same Expired - Lifetime EP0896107B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT98890225T ATE319892T1 (en) 1997-08-04 1998-08-04 TENSION BUNDLE AND METHOD AND DEVICE FOR PRODUCING THE SAME
DE29824481U DE29824481U1 (en) 1997-08-04 1998-08-04 Band-shaped tension bundle and device for producing the same

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT131397A AT407545B (en) 1997-08-04 1997-08-04 TENSION BUNDLE AND METHOD AND DEVICE FOR PRODUCING THE SAME
AT1313/97 1997-08-04
AT131397 1997-08-04

Publications (3)

Publication Number Publication Date
EP0896107A2 EP0896107A2 (en) 1999-02-10
EP0896107A3 EP0896107A3 (en) 2000-06-14
EP0896107B1 true EP0896107B1 (en) 2006-03-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980890225 Expired - Lifetime EP0896107B1 (en) 1997-08-04 1998-08-04 Tensioning bundle and method and device for producing same

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EP (1) EP0896107B1 (en)
AT (1) AT407545B (en)
DE (1) DE59813432D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104452373A (en) * 2014-11-26 2015-03-25 胡国良 Drag rope and method for manufacturing drag rope

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0990744A1 (en) * 1998-10-02 2000-04-05 Hermann Dipl.-Ing. Thal Tendon
AT410337B (en) * 2000-06-15 2003-03-25 Thal Hermann Dipl Ing ENTRY OF PRELOADING ELEMENTS
CN101343840B (en) * 2007-07-09 2012-12-12 上海三菱电梯有限公司 Stretching component of elevator and elevator device
CN101372814B (en) * 2007-08-24 2012-10-03 上海三菱电梯有限公司 Cable of elevator apparatus and elevator apparatus
AT504886B1 (en) * 2007-09-10 2008-09-15 Thal Hermann Dipl Ing BANDED TENSIONING ELEMENT
CN101387082B (en) * 2007-09-14 2012-10-03 上海三菱电梯有限公司 Load-bearing member of elevator and elevator apparatus
CN103848323A (en) * 2013-01-18 2014-06-11 洛阳百克特工贸有限公司 Mining flat steel wire rope tail rope with U-shaped clamps

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Publication number Priority date Publication date Assignee Title
FR1146229A (en) * 1955-02-26 1957-11-07 Pforzheim Metallschlauch Flexible hose for sheathing and protecting conduits, ropes, tension cables and equipment for the manufacture of this hose
DE1559568B2 (en) * 1965-02-11 1976-04-08 Intercontinentale-Technik Gesellschaft f. Planung u. Konstruktion mbH, 8000 München TENSIONER
GB1209701A (en) * 1967-03-16 1970-10-21 Du Pont Prestressed concrete structures and a process for making them
NL7211109A (en) * 1971-11-11 1973-05-15 Sheathed prestressing cables - lubricated and plastic coated
DE2944878A1 (en) * 1979-11-07 1981-05-21 Dyckerhoff & Widmann AG, 8000 München Concrete reinforcing rod or wire corrosion protection - involves tight full length metal sheath form locked round it
DE3204759C1 (en) * 1982-02-11 1983-07-28 Witzenmann GmbH, Metallschlauch-Fabrik Pforzheim, 7530 Pforzheim Post-tensioned flat prestressed concrete member
EP0393013B2 (en) * 1989-04-12 1997-06-25 Vorspann-Technik Gesellschaft m.b.H. Tensioning-bundle comprising tensioning members
AT400736B (en) * 1991-03-19 1996-03-25 Vorspann Technik Gmbh TENSION BUNDLE FOR PRELOADED CONCRETE STRUCTURES
DE19606574A1 (en) * 1996-02-22 1997-08-28 Dyckerhoff & Widmann Ag Application of a protective cover over bridge tension cables
DE19726973C2 (en) * 1997-06-25 2000-09-21 Dyckerhoff & Widmann Ag Method for applying a tubular covering to a tension member and device for spreading a tubular covering

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104452373A (en) * 2014-11-26 2015-03-25 胡国良 Drag rope and method for manufacturing drag rope

Also Published As

Publication number Publication date
EP0896107A3 (en) 2000-06-14
EP0896107A2 (en) 1999-02-10
DE59813432D1 (en) 2006-05-04
ATA131397A (en) 2000-08-15
AT407545B (en) 2001-04-25

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