EP1870522B1 - Device for damping a rope under tension, in particular for protection against falling rocks, mudflows and avalanches - Google Patents

Device for damping a rope under tension, in particular for protection against falling rocks, mudflows and avalanches Download PDF

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Publication number
EP1870522B1
EP1870522B1 EP07405145A EP07405145A EP1870522B1 EP 1870522 B1 EP1870522 B1 EP 1870522B1 EP 07405145 A EP07405145 A EP 07405145A EP 07405145 A EP07405145 A EP 07405145A EP 1870522 B1 EP1870522 B1 EP 1870522B1
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EP
European Patent Office
Prior art keywords
parts
deformation element
bearing shell
clamping
opening
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Not-in-force
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EP07405145A
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German (de)
French (fr)
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EP1870522A1 (en
Inventor
Marcel Sennhauser
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Fatzer AG Drahtseilfabrik
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Fatzer AG Drahtseilfabrik
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
    • E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries

Definitions

  • the invention relates to a device for damping for a claimed on train rope, especially for rockfall and avalanche barriers, according to the preamble of claim 1.
  • a device of this kind is in the EP-B-0 494 046 disclosed.
  • the rope is looped by a helically shaped, formed as a tube deformation element and the overlapping tube ends passed through a clamping member, wherein the tube plastically deformed in overloading the rope while reducing the helix diameter.
  • the clamping member is designed as a compression sleeve. Between the tube and the compression sleeve creates a frictional connection, which is overcome only after exceeding an initial tensile force.
  • the load-damping curve increases approximately linearly over the area of the cable extension, resulting in a progressive absorption of the kinetic energy, for example, during rockfall.
  • the present invention has for its object to further improve the device of the type mentioned above with respect to the load damping curve.
  • the retainer has chamfers, curves respectively soft inserts or special surface coatings at the inlet and outlet of an opening formed for the overlapping ends of the deformation element, the plastic deformation of the deformation element, in which the helical diameter decreases, becomes more uniform during cable overload run as previously, and the load-damping curve is better defined, the effect (damping) starts faster, ie it is already at the beginning of a greater resistance generated, with a jerky load, for example by large falling stones, is collected.
  • the attenuation profile can be largely predetermined not only by the dimensioning of the helically shaped deformation element, but also by the choice of materials and geometric design of the holding member.
  • the retainer may advantageously include a bushing surrounded by a compression sleeve as an intermediate piece, wherein the ferrule may preferably be made of aluminum and the beveled raceway of corrosion resistant steel or steel with a corrosion resistant coating or coating. Also advantageous in terms of manufacturing technology is a two-part retaining element made of corrosion-resistant steel according to the invention.
  • Fig. 1 schematically shows a safety net 5, which is used in particular for rockfall, and snow building, and for this purpose for example, is installed on a slope and is achieved with him, that falling stones, wood, debris, debris or the like or snow avalanches are safely collected.
  • This safety net 5 consists for example of conventional nested ring elements 6, some of the latter are shown.
  • This safety net 5 is in this case held on supporting cables 7 by corresponding anchored in the ground supports 8, which in turn are secured by retaining ropes 9.
  • the retaining ropes 9 are equipped in each case with a device according to the invention for damping when falling in a rock or the like in the present case. However, it would also be possible to provide several such devices per retaining rope.
  • the conventional steel wire rope 9 is looped by an elongated, helically shaped deformation element 1, preferably a tube, whose two overlapping end regions 2, 3 are guided by a holding member 10 and be held together by this.
  • the rope diameter is smaller than the inner diameter of the tube, so that the rope can be easily retracted.
  • the holding member 10 similar to the device according to the EP-B-0 494 046 a compression sleeve 11 preferably made of aluminum (cf. Fig. 4 ), which, however, does not act directly on the two overlapping end regions 2, 3 of the deformation element 1 and holds them together or compresses them, but encloses a running shell receiving the end regions 2, 3, preferably made of corrosion-resistant steel or steel, with a corrosion-resistant coating or coating.
  • the running shell is designed in two parts, with each running-shell part 12, 13 partially enclosing one end region 2, 3.
  • Fig. 4 to Fig. 6 show one of the running shell parts
  • the running shell part 12, 13 each have a semi-circular, the pipe diameter corresponding part 15 and from this projecting straight parts 16, 17.
  • the width of the running-shell parts 12, 13 is greater than the width of the compression sleeve 11 (cf. Fig. 4 ), and the running-shell parts 12, 13 have flange parts 18, 19, between which the compression sleeve 11 engages.
  • the two running shell parts 12, 13 are then pressed against each other with their straight parts 16, 17 and thus also the end portions 2, 3 are pressed together over the half-round shell parts 15.
  • the holding member 10 has at the input and output of the existing for the overlapping end portions 2, 3 of the deformation element 1 bevels or curves on which favor the associated with the change of the helical diameter deformation process, so that it can run more uniform and defined.
  • Out Fig. 4 to Fig. 6 are input and output side bevels or curves 20, 21 can be seen, which enclose an angle ⁇ of, for example, 45 ° with the longitudinal axis of the retainer opening, and there are also curves 22 indicated. They are both the semicircular part 15 and the straight parts 16, 17 equipped with the bevels or curves.
  • the effect according to the invention can be achieved by means of corresponding inserts in the inlet region of the deformation element.
  • different softer materials can be used, which can be inserted into the curves or bevels.
  • FIG Fig. 7 to 10 Another embodiment of an advantageous holding member 30 is shown in FIG Fig. 7 to 10 shown.
  • the holding member 30 comprises two joinable and together an opening 31 for the overlapping end portions 2, 3 of the deformation element 1 forming clamping parts 33, 34.
  • the clamping or holding parts can also be performed differently, the connection between the two clamping or holding parts also can be performed with screws, bolts or similar fasteners.
  • Each clamping part 33, 34 has a transverse part 36 provided with a semicircular, pipe diameter corresponding recess 35 and two side parts 37 adjoining the transverse part 36.
  • the chamfers 40, 41 according to the invention are arranged, which are made both on the respective transverse part 36 and on side parts 37.
  • the two clamping parts 33, 34 of the holding member 30 are formed identically, wherein each one side part 37 comprises a transverse to the opening axis directed projection 50 and the other side part 37 is fork-shaped and provided with a transverse to the opening axis groove 51 ,
  • the two clamping parts 33, 34 can be mutually rotated by 180 ° in such a way that one clamping part 33 projects with the projection 50 into the groove 51 of the other clamping part 34 and its groove 51 receives the projection 50 of the other clamping part 33.
  • Such intermeshing clamping parts 33, 34 are each guided over one by the fork-shaped side parts and the projections 50 inserted therein pressing bolts 55 joined together and thereby the end portions 2, 3 clamped.
  • both the projections 50 and the grooves 51 are wedge-shaped in cross-section.
  • the clamping parts 33, 34 are preferably made of corrosion-resistant steel or steel with a corrosion-resistant coating or coating.
  • the clamping parts behave after assembly “self-clamping", since the deformation element applies the necessary back pressure.
  • elongated deformation element for receiving the rope could be used instead of a tube and a not fully closed.
  • this deformation elements can be used with U and L profiles or similar profiles.
  • the load damping curve can not only be predetermined as previously by the dimensioning of the helically shaped deformation element and possibly by the generation of a frictional engagement between the deformation element and the holding member, but it can additionally by the geometric design of the holding member and the choice of material be defined more clearly.
  • this holding element can enclose this deformation element with little play or, in the sense of a clamping element, clamp or compress the deformation element.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

The device has a longitudinal helical deformation element (1) through which the rope is looped through. The retaining organ (10) has beveled or curved or other friction-resistance formation at the entrance and the exit of an opening formed for the overlapping end areas (2,3) of the deformation element.

Description

Die Erfindung betrifft eine Vorrichtung zur Dämpfung für ein auf Zug beanspruchtes Seil, insbesondere für Steinschlag- und Lawinenverbauungen, gemäss dem Oberbegriff des Anspruches 1.The invention relates to a device for damping for a claimed on train rope, especially for rockfall and avalanche barriers, according to the preamble of claim 1.

Eine Vorrichtung dieser Art ist in der EP-B-0 494 046 offenbart. Das Seil ist durch ein wendelartig geformtes, als ein Rohr ausgebildetes Deformationselement geschlauft und die sich überlappenden Rohrenden sind durch ein Klemmorgan geführt, wobei sich das Rohr bei Überlastung des Seiles unter Verminderung des Wendeldurchmessers plastisch deformiert. Das Klemmorgan ist als eine Presshülse ausgebildet. Zwischen dem Rohr und der Presshülse entsteht ein Reibschluss, der erst nach Überschreiten einer Initialzugkraft überwunden wird. Die Last-Dämpfungskurve steigt über den Bereich der Seilverlängerung annähernd linear an, wodurch eine progressiv wirkende Aufnahme der kinetischen Energie beispielsweise beim Steinschlag zustande kommt.A device of this kind is in the EP-B-0 494 046 disclosed. The rope is looped by a helically shaped, formed as a tube deformation element and the overlapping tube ends passed through a clamping member, wherein the tube plastically deformed in overloading the rope while reducing the helix diameter. The clamping member is designed as a compression sleeve. Between the tube and the compression sleeve creates a frictional connection, which is overcome only after exceeding an initial tensile force. The load-damping curve increases approximately linearly over the area of the cable extension, resulting in a progressive absorption of the kinetic energy, for example, during rockfall.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die Vorrichtung der eingangs genannten Art bezüglich des Last-Dämpfungsverlaufes entscheidend weiter zu verbessern.The present invention has for its object to further improve the device of the type mentioned above with respect to the load damping curve.

Diese Aufgabe wird erfindungsgemäss durch eine Vorrichtung mit den Merkmalen des Anspruches 1 gelöst.This object is achieved according to the invention by a device having the features of claim 1.

Weitere bevorzugte Ausgestaltungen der erfindungsgemässen Vorrichtung bilden den Gegenstand der abhängigen Ansprüche.Further preferred embodiments of the inventive device form the subject of the dependent claims.

Dadurch, dass erfindungsgemäss das Halteorgan Anschrägungen, Rundungen respektive weiche Einlagen oder spezielle Oberflächenbeschichtungen am Ein- und Ausgang einer für die sich überlappenden Enden des Deformationselementes gebildeten Öffnung aufweist, kann die bei Seilüberlastung stattfindende plastische Verformung des Deformationselementes, bei der sich der Wendeldurchmesser verkleinert, gleichmässiger verlaufen als bisher, und auch der Last-Dämpfungsverlauf ist besser definiert, wobei die Wirkung (Dämpfung) schneller einsetzt, d.h. es wird schon am Anfang ein grösserer Widerstand erzeugt, mit dem eine ruckartige Belastung, beispielsweise durch grosse herabfallende Steine, aufgefangen wird.Due to the fact that according to the invention the retainer has chamfers, curves respectively soft inserts or special surface coatings at the inlet and outlet of an opening formed for the overlapping ends of the deformation element, the plastic deformation of the deformation element, in which the helical diameter decreases, becomes more uniform during cable overload run as previously, and the load-damping curve is better defined, the effect (damping) starts faster, ie it is already at the beginning of a greater resistance generated, with a jerky load, for example by large falling stones, is collected.

Der Dämpfungsverlauf kann nicht nur durch die Dimensionierung des wendelartig geformten Deformationselementes weitgehend vorbestimmt werden, sondern auch durch die Materialwahl und geometrische Gestaltung des Halteorgans. Das Halteorgan kann mit Vorteil eine von einer Presshülse umgebene Laufschale als ein Zwischenstück beinhalten, wobei die Presshülse vorzugsweise aus Aluminium und die mit den Anschrägungen bzw. Rundungen versehene Laufschale aus korrosionsbeständigem Stahl oder aus Stahl mit einem korrosionsbeständigen Überzug oder Beschichtung bestehen kann. Fertigungstechnisch vorteilhaft ist auch ein erfindungsgemässes, zweiteiliges Halteorgan aus korrosionsbeständigem Stahl.The attenuation profile can be largely predetermined not only by the dimensioning of the helically shaped deformation element, but also by the choice of materials and geometric design of the holding member. The retainer may advantageously include a bushing surrounded by a compression sleeve as an intermediate piece, wherein the ferrule may preferably be made of aluminum and the beveled raceway of corrosion resistant steel or steel with a corrosion resistant coating or coating. Also advantageous in terms of manufacturing technology is a two-part retaining element made of corrosion-resistant steel according to the invention.

Die Erfindung wird nachfolgend anhand der Zeichnung näher erläutert.
Es zeigen:

Fig. 1
ein schematisch dargestelltes Auffangnetz mit erfindungsgemässen Vorrichtungen zur Dämpfung für ein auf Zug beanspruchtes Seil,
Fig. 2
die Vorrichtung nach Fig. 1 in Frontansicht;
Fig. 3
die Vorrichtung nach Fig. 2 in Seitenansicht;
Fig. 4
einen Schnitt nach Linie III-III in Fig. 2;
Fig. 5
den Laufschalenteil nach Fig. 4 in Seitenansicht;
Fig. 6
den Laufschalenteil in Pfeilrichtung B nach Fig. 5;
Fig. 7
ein weiteres Ausführungsbeispiel eines Halteorgans für eine erfindungsgemässe Vorrichtung zur Stossdämpfung für ein auf Zug beanspruchtes Seil in perspektivischer Darstellung;
Fig. 8
das Halteorgan nach Fig. 7 in Frontansicht;
Fig. 9
das Halteorgan nach Fig. 7 in Seitenansicht; und
Fig. 10
einen Schnitt entlang der Linie XI-XI gemäss Fig. 9.
The invention will be explained in more detail with reference to the drawing.
Show it:
Fig. 1
a schematically illustrated safety net with inventive devices for damping for a claimed on train rope,
Fig. 2
the device after Fig. 1 in front view;
Fig. 3
the device after Fig. 2 in side view;
Fig. 4
a section along line III-III in Fig. 2 ;
Fig. 5
the running shell part Fig. 4 in side view;
Fig. 6
the running shell part in the direction of arrow B after Fig. 5 ;
Fig. 7
a further embodiment of a holding member for a device according to the invention for shock absorption for a claimed to train rope in a perspective view;
Fig. 8
the retainer after Fig. 7 in front view;
Fig. 9
the retainer after Fig. 7 in side view; and
Fig. 10
a section along the line XI-XI according to Fig. 9 ,

Fig. 1 zeigt schematisch ein Auffangnetz 5, das insbesondere für Steinschlag-,und Schneeverbauungen verwendet wird, und zu diesem Zwecke beispielsweise an einem Abhang installiert ist und mit ihm erzielt wird, dass herunterfallende Steine, Gehölz, Murgang, Geschiebe oder ähnliches bzw. Schneelawinen sicher aufgefangen werden. Dieses Auffangnetz 5 besteht beispielsweise aus herkömmlichen ineinandergewundenen Ringelementen 6, von letzteren einige gezeigt sind. Dieses Auffangnetz 5 ist hierbei über Tragseile 7 von entsprechenden im Boden verankerten Stützen 8 gehalten, welche ihrerseits von Rückhalteseilen 9 gesichert sind. Die Rückhalteseile 9 sind zur Dämpfung beim Hineinfallen eines Felsbrockens oder dergleichen vorliegend jeweils mit einer erfindungsgemässen Vorrichtung bestückt. Es könnten aber auch mehrere solcher Vorrichtungen pro Rückhalteseil vorgesehen sein. Fig. 1 schematically shows a safety net 5, which is used in particular for rockfall, and snow building, and for this purpose for example, is installed on a slope and is achieved with him, that falling stones, wood, debris, debris or the like or snow avalanches are safely collected. This safety net 5 consists for example of conventional nested ring elements 6, some of the latter are shown. This safety net 5 is in this case held on supporting cables 7 by corresponding anchored in the ground supports 8, which in turn are secured by retaining ropes 9. The retaining ropes 9 are equipped in each case with a device according to the invention for damping when falling in a rock or the like in the present case. However, it would also be possible to provide several such devices per retaining rope.

Fig. 2 zeigt diese Vorrichtung zur Dämpfung für das beim Ereignis auf Zug beanspruchtes Seil 9. Das konventionelle Stahldrahtseil 9, wird durch ein längliches, wendelartig geformtes Deformationselement 1, vorzugsweise ein Rohr, geschlauft, dessen beide sich überlappenden Endbereiche 2, 3 durch ein Halteorgan 10 geführt sind und von diesem zusammengehalten werden. Der Seildurchmesser ist kleiner als der Innendurchmesser des Rohres, so dass sich das Seil leicht einziehen lässt. Fig. 2 The conventional steel wire rope 9 is looped by an elongated, helically shaped deformation element 1, preferably a tube, whose two overlapping end regions 2, 3 are guided by a holding member 10 and be held together by this. The rope diameter is smaller than the inner diameter of the tube, so that the rope can be easily retracted.

Bei Überlastung des Seiles 9 beispielsweise durch herabstürzende Gesteins- oder Schneemassen wird der Wendeldurchmesser vermindert, wobei das Deformationselement 1 zumindest auf einer Seite durch das Halteorgan 10 hindurchgezogen wird. Durch diese plastische Deformation des Deformationselementes 1 und durch die Reibung zwischen dem Deformationselement 1 und dem Halteorgan 10 wird eine auf das Seil 9 einwirkende Stossbelastung gedämpft und kinetische Energie mit zunehmender Seilverlängerung progressiv abgebaut, wobei die Seilfestigkeit voll ausgenutzt werden kann. Bei relativ langen Seilen können mehrere solche Wendel über die Seillänge verteilt werden. Es können auch mehrere Wendel durch das Halteorgan geführt werden.When overloading the rope 9, for example, by falling rock or snow masses of the helical diameter is reduced, wherein the deformation element 1 is pulled through at least on one side by the retainer 10. By this plastic deformation of the deformation element 1 and by the friction between the deformation element 1 and the retainer 10 acting on the rope 9 shock load is damped and kinetic energy progressively degraded with increasing rope extension, the rope strength can be fully utilized. For relatively long ropes several such helix can be distributed over the rope length. It can also be performed by the retainer several helix.

Bei der in Fig. 2 bis Fig. 6 veranschaulichten Ausführungsform umfasst das Halteorgan 10 - ähnlich wie bei der Vorrichtung nach der EP-B-0 494 046 - eine Presshülse 11 vorzugsweise aus Aluminium (vgl. insbesondere Fig. 4), die hier jedoch nicht direkt auf die beiden sich überlappenden Endbereiche 2, 3 des Deformationselementes 1 einwirkt und sie zusammenhält oder zusammenpresst, sondern eine die Endbereiche 2, 3 aufnehmende Laufschale vorzugsweise aus korrosionsfestem Stahl oder aus Stahl mit einem korrosionsbeständigen Überzug oder Beschichtung umschliesst. Die Laufschale ist erfindungsgemäss zweiteilig ausgebildet, wobei jeder Laufschalenteil 12, 13 den einen Endbereich 2, 3 teilweise umschliesst.At the in Fig. 2 to Fig. 6 illustrated embodiment, the holding member 10 - similar to the device according to the EP-B-0 494 046 a compression sleeve 11 preferably made of aluminum (cf. Fig. 4 ), which, however, does not act directly on the two overlapping end regions 2, 3 of the deformation element 1 and holds them together or compresses them, but encloses a running shell receiving the end regions 2, 3, preferably made of corrosion-resistant steel or steel, with a corrosion-resistant coating or coating. According to the invention, the running shell is designed in two parts, with each running-shell part 12, 13 partially enclosing one end region 2, 3.

Wie aus Fig. 4 bis Fig. 6 ersichtlich, die einen der Laufschalenteile zeigen, weist der Laufschalenteil 12, 13 jeweils einen halbrunden, dem Rohrdurchmesser entsprechenden Teil 15 sowie von diesem wegragende gerade Teile 16, 17 auf. Die Breite der Laufschalenteile 12, 13 ist grösser als die Breite der Presshülse 11 (vgl. insbesondere Fig. 4), und die Laufschalenteile 12, 13 weisen Flanschteile 18, 19 auf, zwischen welche die Presshülse 11 eingreift. Über die Presshülse 11 werden dann die beiden Laufschalenteile 12, 13 mit ihren geraden Teilen 16, 17 gegeneinander gedrückt und somit auch die Endbereiche 2, 3 über die halbrunden Schalenteile 15 zusammengepresst.How out Fig. 4 to Fig. 6 can be seen, which show one of the running shell parts, the running shell part 12, 13 each have a semi-circular, the pipe diameter corresponding part 15 and from this projecting straight parts 16, 17. The width of the running-shell parts 12, 13 is greater than the width of the compression sleeve 11 (cf. Fig. 4 ), and the running-shell parts 12, 13 have flange parts 18, 19, between which the compression sleeve 11 engages. About the compression sleeve 11, the two running shell parts 12, 13 are then pressed against each other with their straight parts 16, 17 and thus also the end portions 2, 3 are pressed together over the half-round shell parts 15.

Das Halteorgan 10 weist erfindungsgemäss am Ein- und Ausgang der für die sich überlappenden Endbereiche 2, 3 des Deformationselementes 1 vorhandenen Öffnung Anschrägungen bzw. Rundungen auf, die den mit der Veränderung des Wendeldurchmessers verbundenen Deformationsvorgang begünstigen, so dass dieser gleichmässiger und definierter verlaufen kann. Aus Fig. 4 bis Fig. 6 sind eingangs- und ausgangsseitige Anschrägungen bzw. Rundungen 20, 21 ersichtlich, die einen Winkel α von beispielsweise 45° mit der Längsachse der Halteorgan-Öffnung einschliessen, und es sind auch Rundungen 22 angedeutet. Es sind sowohl der halbrunde Teil 15 als auch die geraden Teile 16, 17 mit den Anschrägungen bzw. Rundungen ausgestattet. Es ist jedoch auch möglich, dass durch entsprechende Einlagen im Einlaufbereich des Deformationselements der erfindungsgemäss Effekt erzielt werden kann. Hierzu können verschiedene weichere Materialen verwendet werden, welche in die Rundungen oder Abschrägungen eingelegt werden können.The holding member 10 according to the invention has at the input and output of the existing for the overlapping end portions 2, 3 of the deformation element 1 bevels or curves on which favor the associated with the change of the helical diameter deformation process, so that it can run more uniform and defined. Out Fig. 4 to Fig. 6 are input and output side bevels or curves 20, 21 can be seen, which enclose an angle α of, for example, 45 ° with the longitudinal axis of the retainer opening, and there are also curves 22 indicated. They are both the semicircular part 15 and the straight parts 16, 17 equipped with the bevels or curves. However, it is also possible that the effect according to the invention can be achieved by means of corresponding inserts in the inlet region of the deformation element. For this purpose, different softer materials can be used, which can be inserted into the curves or bevels.

Ein anderes Ausführungsbeispiel eines vorteilhaften Halteorgans 30 ist in Fig. 7 bis 10 gezeigt. Das Halteorgan 30 umfasst zwei zusammenfügbare und zusammen eine Öffnung 31 für die sich überlappenden Endbereiche 2, 3 des Deformationselementes 1 bildende Klemmteile 33, 34. Die Klemm- oder Halteteile können auch andersartig ausgeführt werden, wobei die Verbindung zwischen den zwei Klemm- oder Halteteilen auch mit Schrauben, Bolzen oder ähnlichen Verbindungsmitteln ausgeführt werden kann. Jeder Klemmteil 33, 34 weist einen mit einer halbrunden, dem Rohrdurchmesser entsprechenden Ausnehmung 35 versehenen Querteil 36 sowie zwei an den Querteil 36 anschliessende Seitenteile 37 auf. Am Ein- und Ausgang der Öffnung 31 sind wiederum die erfindungsgemässen Anschrägungen 40, 41 angeordnet, die sowohl am jeweiligen Querteil 36 als auch an Seitenteilen 37 angefertigt sind.Another embodiment of an advantageous holding member 30 is shown in FIG Fig. 7 to 10 shown. The holding member 30 comprises two joinable and together an opening 31 for the overlapping end portions 2, 3 of the deformation element 1 forming clamping parts 33, 34. The clamping or holding parts can also be performed differently, the connection between the two clamping or holding parts also can be performed with screws, bolts or similar fasteners. Each clamping part 33, 34 has a transverse part 36 provided with a semicircular, pipe diameter corresponding recess 35 and two side parts 37 adjoining the transverse part 36. At the inlet and outlet of the opening 31 in turn the chamfers 40, 41 according to the invention are arranged, which are made both on the respective transverse part 36 and on side parts 37.

In einer besonders bevorzugten Weise sind die beiden Klemmteile 33, 34 des Halteorgans 30 identisch ausgebildet, wobei jeweils der eine Seitenteil 37 einen quer zur Öffnungsachse gerichteten Vorsprung 50 umfasst und der andere Seitenteil 37 gabelförmig ausgebildet und mit einer quer zur Öffnungsachse gerichteten Nut 51 versehen ist. Die beiden Klemmteile 33, 34 können - gegenseitig um 180° verdreht - derart zusammengesetzt werden, dass der eine Klemmteil 33 mit dem Vorsprung 50 in die Nut 51 des anderen Klemmteils 34 hineinragt und seine Nut 51 den Vorsprung 50 des anderen Klemmteils 33 aufnimmt. Derart ineinandergreifende Klemmteile 33, 34 werden über je einen durch die gabelförmigen Seitenteile und die darin eingesetzten Vorsprünge 50 geführten Pressbolzen 55 zusammengefügt und dadurch die Endbereiche 2, 3 eingeklemmt.In a particularly preferred manner, the two clamping parts 33, 34 of the holding member 30 are formed identically, wherein each one side part 37 comprises a transverse to the opening axis directed projection 50 and the other side part 37 is fork-shaped and provided with a transverse to the opening axis groove 51 , The two clamping parts 33, 34 can be mutually rotated by 180 ° in such a way that one clamping part 33 projects with the projection 50 into the groove 51 of the other clamping part 34 and its groove 51 receives the projection 50 of the other clamping part 33. Such intermeshing clamping parts 33, 34 are each guided over one by the fork-shaped side parts and the projections 50 inserted therein pressing bolts 55 joined together and thereby the end portions 2, 3 clamped.

Mit Vorteil sind sowohl die Vorsprünge 50 als auch die Nuten 51 im Querschnitt keilförmig ausgebildet.Advantageously, both the projections 50 and the grooves 51 are wedge-shaped in cross-section.

Die Klemmteile 33, 34 sind vorzugsweise aus korrosionsbeständigem Stahl oder aus Stahl mit einem korrosionsbeständigen Überzug oder Beschichtung angefertigt.The clamping parts 33, 34 are preferably made of corrosion-resistant steel or steel with a corrosion-resistant coating or coating.

Die Klemmteile verhalten sich nach dem Zusammenfügen "selbstklemmend", da das Deformationselement den notwendigen Gegendruck aufbringt.The clamping parts behave after assembly "self-clamping", since the deformation element applies the necessary back pressure.

Anstelle eines Rohres könnte auch ein nicht vollumfänglich geschlossenes, längliches Deformationselement für die Aufnahme des Seiles Verwendung finden. Insbesondere können hierzu Deformationselemente mit U- und L-Profilen oder ähnlichen Profilen verwendet werden.Instead of a tube and a not fully closed, elongated deformation element for receiving the rope could be used. In particular, this deformation elements can be used with U and L profiles or similar profiles.

Bei den erfindungsgemässen Vorrichtungen kann der Last-Dämpfungsverlauf nicht nur wie bisher durch die Dimensionierung des wendelartig geformten Deformationselementes und allenfalls durch die Erzeugung eines Reibschlusses zwischen dem Deformationselement und dem Halteorgan vorbestimmt werden, sondern er kann zusätzlich auch durch die geometrische Gestaltung des Halteorgans und die Materialwahl klarer definiert werden.In the inventive devices, the load damping curve can not only be predetermined as previously by the dimensioning of the helically shaped deformation element and possibly by the generation of a frictional engagement between the deformation element and the holding member, but it can additionally by the geometric design of the holding member and the choice of material be defined more clearly.

Dieses Halteorgan kann im Ausgangszustand dieses Deformationselement mit wenig Spiel umschliessen oder aber im Sinne eines Klemmorganes das Deformationselement klemmen bzw. verpressen.In the initial state, this holding element can enclose this deformation element with little play or, in the sense of a clamping element, clamp or compress the deformation element.

Claims (10)

  1. Shock absorbing device for a stretched cable, in particular for rockfall, debris flow and snow control works, with an elongate deformation element (1) in the form of a helix, through which the cable (9) can be passed, while two overlapping end sections (2, 3) of the deformation element (1) are guided through a holding element (10; 30) and, if the cable (9) is overloaded, the deformation element (1) is plastically deformable by reducing the diameter of the helix, characterised in that
    the holding element (10; 30) comprises a divided and projected bearing shell, whose bearing shell parts (12, 13; 33, 34) forms together an opening (31) for the overlapping end sections (2, 3) of the deformation element (1), whereas each bearing shell part (12, 13; 33, 34) in each case partly surrounding the one or the other end section (2, 3) of the deformation element (1), and on the entry and exit of the opening (31) are provided bevels or roundings (21, 22, 23; 40, 41) or other friction-limiting projections on both bearing shell parts (12, 13; 33, 34).
  2. Device according to claim 1, characterised in that the both bearing shell parts (12, 13) are surrounded by a compression sleeve (11), whereas the width of the bearing shell parts (12, 13) is greater than the width of the compression sleeve (11), while the bevels or the roundings (21, 22, 23) are each assigned to a flange part (18, 19) of the respective bearing shell part (12, 13), between which flange parts (18, 19) the compression sleeve (11) engages.
  3. Device according to claim 2, characterised in that the both bearing shell parts (12, 13) are designed for the absorption of two overlapping end sections (2, 3) of a tubular deformation element (1) and each comprising a semi-circular part (15) corresponding to the tube diameter and straight cross-parts (16, 17) projecting from the latter, with which they are pressed against each other, while both the semi-circular parts (15) and the straight cross-parts against they are pressed, while the semi-circular parts (15) and the straight cross-parts (16, 17) are provided with the bevels or roundings (21, 22, 23), which form the opening (31) for the overlapping end sections (2, 3) of the deformation element (1).
  4. Device according to claim 2 or 3, characterised in that the compression sleeve (11) is made from aluminium and the bearing shell parts (12, 13) from corrosion-resistant steel or steel with a corrosion-resistant surface or coat.
  5. Device according to claim 1, characterised in that the two bearing shell parts are designed as two joinable clamping parts (33, 34), and are provided for the absorption of overlapping end sections (2, 3) of a tubular deformation element (1), whereby each clamping part (33, 34) comprise a cross-part (35) have a semi-circular to the tube diameter corresponding recess (35) and two straight side parts (37) attached to the cross parts (35), which build the opening (31) for the overlapping end sections (2, 3) of the deformation element (1), whereby the cross parts (35) as well as the side parts (37) are provided with the bevels respectively roundings (40, 41).
  6. Device according to claim 5, characterised in that the opening (31) building clamping parts (33, 34) are identical in design, while the one side part (37) includes a projection (50) oriented transversely to the opening axis an the other side part (37) is in the form of a fork and is provided with a groove (51) oriented transversely to the opening axis, while the two clamping parts (33, 34) - reciprocally rotated through 180° - can be brought together in such a way that the one clamping part (33) projects with the projection (50) into the groove (51) of the other and its groove (51) accepts the projection (50) of the other, whereby the assembled clamping parts (33, 34) are joinable via a compression bolt (55) guided through the fork-shaped side parts and the projections (50) inserted therein.
  7. Device according to claim 6, characterised in that the projections (50) and the grooves (51) are wedge-shaped in cross section.
  8. Device according to claim 5 to 7, characterised in that the clamping parts (33, 34) are designed to be self-locking once assembled.
  9. Device according to claim 5 to 8, characterised in that both clamping parts (33, 34) are made from corrosion-resistant steel or of steel with a corrosion-resistant layer or coating.
  10. Device according to claim 1, characterised in that the bearing shell parts (12, 13, 33, 34) are preferably made from the same material and/or with the same surface coating as the deformation element (1).
EP07405145A 2006-06-17 2007-05-21 Device for damping a rope under tension, in particular for protection against falling rocks, mudflows and avalanches Not-in-force EP1870522B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00987/06A CH698869B1 (en) 2006-06-17 2006-06-17 Damping device for a claimed on train rope, especially for rockfall, debris flow and avalanche protection.

Publications (2)

Publication Number Publication Date
EP1870522A1 EP1870522A1 (en) 2007-12-26
EP1870522B1 true EP1870522B1 (en) 2009-06-10

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Application Number Title Priority Date Filing Date
EP07405145A Not-in-force EP1870522B1 (en) 2006-06-17 2007-05-21 Device for damping a rope under tension, in particular for protection against falling rocks, mudflows and avalanches

Country Status (7)

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US (1) US7458449B2 (en)
EP (1) EP1870522B1 (en)
JP (1) JP2008069622A (en)
CN (1) CN101122119B (en)
AT (1) ATE433523T1 (en)
CH (1) CH698869B1 (en)
DE (1) DE502007000847D1 (en)

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EP2993269A1 (en) 2014-09-04 2016-03-09 Jakob AG Assembly for the protection of slopes

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JP6035449B1 (en) * 2016-08-24 2016-11-30 有限会社吉田構造デザイン Shock absorber
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CN108035267B (en) * 2018-01-06 2023-08-15 中国科学院、水利部成都山地灾害与环境研究所 Telescoping sleeve vibration damper, falling Dan Jianzhen shed tunnel and design method
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EP2993269A1 (en) 2014-09-04 2016-03-09 Jakob AG Assembly for the protection of slopes

Also Published As

Publication number Publication date
CH698869B1 (en) 2009-11-30
CN101122119B (en) 2012-10-03
US7458449B2 (en) 2008-12-02
JP2008069622A (en) 2008-03-27
US20080006757A1 (en) 2008-01-10
CN101122119A (en) 2008-02-13
ATE433523T1 (en) 2009-06-15
EP1870522A1 (en) 2007-12-26
DE502007000847D1 (en) 2009-07-23

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