FR2777333A1 - Pulling grip for a cable under tension - Google Patents

Pulling grip for a cable under tension Download PDF

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Publication number
FR2777333A1
FR2777333A1 FR9804713A FR9804713A FR2777333A1 FR 2777333 A1 FR2777333 A1 FR 2777333A1 FR 9804713 A FR9804713 A FR 9804713A FR 9804713 A FR9804713 A FR 9804713A FR 2777333 A1 FR2777333 A1 FR 2777333A1
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France
Prior art keywords
jaws
tendon
allowing
grooves
holes
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Granted
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FR9804713A
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French (fr)
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FR2777333B1 (en
Inventor
Frederic Labaeye
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Individual
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Individual
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Priority to FR9804713A priority Critical patent/FR2777333B1/en
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Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/06—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with laterally-arranged screws

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Cable Installation (AREA)

Abstract

The tensioning grip of a cable or similar cylindrical object consists of modular jaws provided with throats adapted to the form of the cable to be pulled. Jaws are provided with holes (2) so that the two halves can be bolted onto the cable by bolts which also fix the jaws to plates (5). The plates have attached to them pulling loops (6). Clamping jaws are provided with two throats of different dimensions to accommodate various sizes of cable.

Description

-1- La présente invention concerne un dispositif pour saisir et pour-1- The present invention relates to a device for grasping and for

mettre en tension un objet de formetension a shaped object

cylindrique tel qu'une barre, un câble,un hauban, un tendon, un tirant, une ligne d'ancrage que nous apellerons5 tendon dans ce texte.  cylindrical such as a bar, a cable, a shroud, a tendon, a tie, an anchor line which we will call5 tendon in this text.

La saisie et la mise en tension de tendon est traditionellement effectué à l'aide de dispositif appelé mordache, comprenant deux longs mors de forme allongée munis d'une gorge dont la dimension est compatible avec10 celle du tendon et dont la force de saisie doit permettre de transmettre la force de tension au tendon. Ces mordaches sont de dimensions et de poids déterminés par la dimension du tendon à saisir et par la force de traction à transmettre. Dans le cas o les dimensions des1i tendons sont différentes, plusieurs mors de dimensions différentes sont nécessaires. Dans le cas o les forces de tension nécessaires sont de valeures différentes,la force de saisie des mors doit correspondre à l'effort de tension maximum nécessaire pour ne pas multiplier la2o quantité de mordaches de force de saisie différente. Le dispositif selon l'invention permet de remédier à ces inconvénients. Il comporte en effet selon une première caractéristique, des mors de saisie du tendon,en forme de galettes carrées ou arrondies, munis de plusieurs gorges2S de dimensions différentes, permettant de s'adapter, chacune, à plusieurs dimensions de tendon. Ces mors comportent, de plus la caractéristique d'être modulaires ce qui permet de les mettre en place en quantité proportionelle à l'effort de tension nécessaire.30 Selon des modes particuliers de réalisation: -le dispositif est constitué de deux ensembles de plaques enserrant des mors sur le tendon à tendre, à l'aide de boulons. - chaque mors est munis de deux ou de quatre ou de  The gripping and tensioning of tendon is traditionally carried out using a device called a jaw, comprising two long jaws of elongated shape provided with a groove whose size is compatible with that of the tendon and whose gripping force must allow to transmit the tensile force to the tendon. These jaws are of dimensions and weight determined by the size of the tendon to be grasped and by the tensile force to be transmitted. In the case where the dimensions of the tendons are different, several jaws of different dimensions are necessary. In the case where the necessary tension forces are of different values, the gripping force of the jaws must correspond to the maximum tensile force necessary so as not to multiply the 2o quantity of jaws with different gripping force. The device according to the invention overcomes these drawbacks. According to a first characteristic, it comprises jaws for gripping the tendon, in the form of square or rounded patties, provided with several grooves2S of different dimensions, making it possible to adapt, each, to several dimensions of tendon. These jaws also have the characteristic of being modular, which allows them to be installed in a quantity proportional to the necessary tension force. 30 According to particular embodiments: the device consists of two sets of plates enclosing jaws on the tendon to be stretched, using bolts. - each jaw is provided with two or four or with

3-plusieurs gorges s'adaptant à des tendons de dimensions différentes.  3-several grooves adapting to tendons of different dimensions.

-2- -chaque mors est percé de trous disposés de manière équidistante permettant le passage des boulons d'assemblage. -les plaques enserrant les mâchoires sont percées de trous disposés de manière équidistante et correpondante  -2- - each jaw is pierced with holes arranged in an equidistant manner allowing the passage of the assembly bolts. -the plates enclosing the jaws are pierced with holes arranged in an equidistant and corresponding manner

aux trous des mors.to the bit holes.

-les mors sont de forme arrondie pour servir d'appui à des liens (estrope, élingue) permettant de relier le  -the jaws are rounded to serve as support for links (strop, sling) to connect the

dispositif à un organe de mise en tension.  device to a tensioning member.

Les dessins annexés illustrent l'invention: Les figures 1 et la représentent un dispositif muni de mors modullaires multiples, muni de lien(s) avec l'organe de mise en tension, Les figures 2 et 2a représentent un dispositif muni d'une 19 paire de mors, munis de liens avec l'organe de mise en tension, Les figures 3, 3a et 3b représentent un mors à deux gorges, Les figures 4, 4a, 4b, 4c et 4d représentent un mors à2o quatre gorges, En référence à ces dessins, le dispositif comporte deux, quatre, plusieurs paires de mors (l),qui sont percés de trous équidistants (2) et dont l'une des faces est munie de plusieurs gorges (3) ayant des formeszf correspondantes aux tendons à saisir.Ces mors sont alignés de part et d'autre du tendon (4) à saisir,et sont boulonnés entre eux par l'intermédiaire de plaques (5) qui les enserrent. La liaison du dispositif avec l'organe de mise en tension est soit un lien (6) raccordé par des3ô manilles (7) aux plaques (5) dans le cas de dispositif muni d'une paire de mors(1), soit constitué de liens (6) s'appuyant sur une ou plusieur séries de mors alignés dans le cas de dispositifs à mors multiples. L'orientation des mors (1) par rapport au tendon (4)  The accompanying drawings illustrate the invention: FIGS. 1 and 1a represent a device provided with multiple modullary jaws, provided with link (s) with the tensioning member, FIGS. 2 and 2a represent a device provided with a 19 pair of jaws, provided with links with the tensioning member, Figures 3, 3a and 3b represent a jaw with two grooves, Figures 4, 4a, 4b, 4c and 4d represent a jaw with 2o four grooves, In reference in these drawings, the device comprises two, four, several pairs of jaws (l), which are pierced with equidistant holes (2) and one of the faces of which is provided with several grooves (3) having shapes corresponding to the tendons These jaws are aligned on either side of the tendon (4) to be gripped, and are bolted together by means of plates (5) which enclose them. The connection of the device with the tensioning member is either a link (6) connected by shackles (7) to the plates (5) in the case of a device provided with a pair of jaws (1), or consisting of links (6) based on one or more series of jaws aligned in the case of multiple jaw devices. The orientation of the jaws (1) relative to the tendon (4)

%' met en correspondance la gorge de dimension adaptée au tendon (4) à saisir.  % 'matches the throat of dimension adapted to the tendon (4) to be grasped.

-3- La quantité de mors (1) correspond à la force de  -3- The quantity of jaws (1) corresponds to the force of

tension à développer.tension to develop.

La disposition des mors (1) correspond à la disposition des liens (6) entre le dispositif ( fig. 1 et la) et l'organe de tension (8). A titre d'exemple non limitatif, les mors auront une forme carrée de 165 mm de côté aux coins arrondis, une épaisseur de 60 mm, les gorges en "V" seront de largeur et 65 mm; ces deux gorges pourront saisir des tendons Io dont le diamètre est compris entre 35 et 70 mm; les perçages dans les mors pourront être de 26 mm de diamètre et équidistants de 55 mm; les boulons de serrage des plaques et mors pourront être de diamètre 24 mm; les diamètres des tendons à saisir pourront être alors de 35 I1 à 70 mm; la quantité de mors pourra être de deux à vingt; les efforts de tension pouvant être transmis au tendon pourront être de 10 à 100 tonnes; Le dispositif selon l'invention est particulièrement destiné à la mise en tension de haubans de structures 2o haubannées, de cables de téléphérique à câbles, de lignes d'ancrage de plateformes ancrées, de tendons de  The arrangement of the jaws (1) corresponds to the arrangement of the links (6) between the device (fig. 1 and the) and the tension member (8). By way of nonlimiting example, the jaws will have a square shape of 165 mm on a side with rounded corners, a thickness of 60 mm, the "V" grooves will be of width and 65 mm; these two grooves can grasp Io tendons whose diameter is between 35 and 70 mm; the holes in the jaws may be 26 mm in diameter and equidistant from 55 mm; the clamping bolts of the plates and jaws may be 24 mm in diameter; the diameters of the tendons to be grasped could then be from 35 I1 to 70 mm; the quantity of jaws may be from two to twenty; the tension forces which can be transmitted to the tendon may be from 10 to 100 tonnes; The device according to the invention is particularly intended for tensioning guy wires of 2o guyed structures, cableway cables to cables, anchoring lines of anchored platforms, tendons of

précontrainte de massif.pre-stressing.

-4--4-

Claims (4)

REVENDICATIONS 1/ Dispositif pour saisir et tendre une barre, un cable, un hauban, un tendon, un tirant, une ligne d'ancrage (4) (appelé tendon) caractérisé en ce qu'il comporte des mors modulaires (1) munis de gorges (3) adaptées a la forme des tendons (4) à tendre et munis de trous (2) équidistants permettant d'être fixés sur le tendon(4)à tendre par des boulons (9) et des plaques (5). 2/ Dispositif selon la revendication 1 caractérisé en ce que les mors (1) sont munis d'au moins deux  1 / Device for gripping and tensioning a bar, a cable, a shroud, a tendon, a tie rod, an anchoring line (4) (called tendon) characterized in that it comprises modular jaws (1) provided with grooves (3) adapted to the shape of the tendons (4) to be stretched and provided with equidistant holes (2) enabling them to be fixed to the tendon (4) to be stretched by bolts (9) and plates (5). 2 / Device according to claim 1 characterized in that the jaws (1) are provided with at least two gorges(3) de dimension permettant de s'adapter à la section des tendons(4) à tendre.  grooves (3) of dimension allowing to adapt to the section of the tendons (4) to be stretched. 3/ Dispositif selon la revendication 1 caractérisé en ce que les mors (1) sont munis de trous (2) équidistants permettant d'ête montés suivant différentes  3 / Device according to claim 1 characterized in that the jaws (1) are provided with holes (2) equidistant allowing to be mounted according to different I' orientations.I 'directions. 4/ Dispositif selon la revendication 1 caractérisé en ce que les plaques (5) de fixation des mors sont  4 / Device according to claim 1 characterized in that the plates (5) for fixing the jaws are munies de trous (2) également équidistants aux trous des mors (1) permettant de fixer les mors suivant différentes% positions.  provided with holes (2) also equidistant from the jaw holes (1) allowing the jaws to be fixed in different% positions. / Dispositif selon les revendications 1 et 4 caractérisé en ce qu'il comporte plusieur paires de mors  / Device according to claims 1 and 4 characterized in that it comprises several pairs of jaws lui permettant de développer un effort de tension proportionnel à la quantité de mors fixés sur le tendon. 6/Dispositif selon les revendications 1, 4 et 5 caractérisé en ce que la liaison avec l'organe de tension  allowing it to develop a tension force proportional to the quantity of jaws attached to the tendon. 6 / Device according to claims 1, 4 and 5 characterized in that the connection with the tension member (8) s'appuie directement contre les mors (1) sur une, deux ou plusieurs séries de mors permettant de répartir  (8) rests directly against the jaws (1) on one, two or more sets of jaws making it possible to distribute les efforts de tension sur le dispositif.  the tension forces on the device. -5- 7/ Dispositif selon la revendication 1 et 2 caractérisé en ce que les gorges (3) des mors (1) peuvent être de forme en "V" chacune permettant de s'adapter à  -5- 7 / Device according to claim 1 and 2 characterized in that the grooves (3) of the jaws (1) can be of "V" shape each allowing to adapt to plusieurs dimensions de tendons.several dimensions of tendons. 8/ Dispositif selon les revendications 1, 2 et 7  8 / Device according to claims 1, 2 and 7 caractérisé en ce que plusieurs gorges (3) peuvent chacune s'adapter à plusieurs séries de dimensions de tendons.  characterized in that several grooves (3) can each adapt to several series of tendon dimensions.
FR9804713A 1998-04-09 1998-04-09 INPUT DEVICE FOR TENSIONING AN OBJECT OF CYLINDRICAL FORM Expired - Fee Related FR2777333B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9804713A FR2777333B1 (en) 1998-04-09 1998-04-09 INPUT DEVICE FOR TENSIONING AN OBJECT OF CYLINDRICAL FORM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9804713A FR2777333B1 (en) 1998-04-09 1998-04-09 INPUT DEVICE FOR TENSIONING AN OBJECT OF CYLINDRICAL FORM

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FR2777333A1 true FR2777333A1 (en) 1999-10-15
FR2777333B1 FR2777333B1 (en) 2000-06-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2826084A1 (en) * 2001-06-15 2002-12-20 Nexans UNIVERSAL FLANGE FOR CYLINDRICAL ELEMENT, PARTICULARLY FOR CABLE

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1764372A (en) * 1927-07-30 1930-06-17 Westinghouse Electric & Mfg Co Strain clamp
US2058549A (en) * 1933-07-27 1936-10-27 Ohio Brass Co Clamp
GB643812A (en) * 1948-03-25 1950-09-27 Winther Stokkendahl Christense Rope or cable securing device or clamp
US2582384A (en) * 1950-09-01 1952-01-15 Krueger And Hudepohl Cable connector
EP0265355A1 (en) * 1986-10-23 1988-04-27 Denis Creissels S.A. Cable gripper trolley for a dual cableway
US5127135A (en) * 1991-06-05 1992-07-07 Square D Company Adjustable clamp for conductors
EP0643442A1 (en) * 1993-09-13 1995-03-15 Societe Nouvelle Des Etablissements Dervaux, S.A. Connection device for electrical conductors for tapping or terminal connections
DE29514679U1 (en) * 1995-09-13 1995-11-02 Abb Patent Gmbh, 68309 Mannheim Rope clamp

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1764372A (en) * 1927-07-30 1930-06-17 Westinghouse Electric & Mfg Co Strain clamp
US2058549A (en) * 1933-07-27 1936-10-27 Ohio Brass Co Clamp
GB643812A (en) * 1948-03-25 1950-09-27 Winther Stokkendahl Christense Rope or cable securing device or clamp
US2582384A (en) * 1950-09-01 1952-01-15 Krueger And Hudepohl Cable connector
EP0265355A1 (en) * 1986-10-23 1988-04-27 Denis Creissels S.A. Cable gripper trolley for a dual cableway
US5127135A (en) * 1991-06-05 1992-07-07 Square D Company Adjustable clamp for conductors
EP0643442A1 (en) * 1993-09-13 1995-03-15 Societe Nouvelle Des Etablissements Dervaux, S.A. Connection device for electrical conductors for tapping or terminal connections
DE29514679U1 (en) * 1995-09-13 1995-11-02 Abb Patent Gmbh, 68309 Mannheim Rope clamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2826084A1 (en) * 2001-06-15 2002-12-20 Nexans UNIVERSAL FLANGE FOR CYLINDRICAL ELEMENT, PARTICULARLY FOR CABLE
US6722929B2 (en) 2001-06-15 2004-04-20 Nexans Universal clamp for a cylindrical element, in particular for a cable
EP1267092A3 (en) * 2001-06-15 2006-04-26 Nexans Universal collar for cylindrical element especially for cable

Also Published As

Publication number Publication date
FR2777333B1 (en) 2000-06-30

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