EP0943570B1 - Apparatus for advancing an elongated element - Google Patents

Apparatus for advancing an elongated element Download PDF

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Publication number
EP0943570B1
EP0943570B1 EP98810227A EP98810227A EP0943570B1 EP 0943570 B1 EP0943570 B1 EP 0943570B1 EP 98810227 A EP98810227 A EP 98810227A EP 98810227 A EP98810227 A EP 98810227A EP 0943570 B1 EP0943570 B1 EP 0943570B1
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EP
European Patent Office
Prior art keywords
mobile
handle
control shaft
driving
mobile yoke
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
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EP98810227A
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German (de)
French (fr)
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EP0943570A1 (en
Inventor
Michel Cherix
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Plumettaz SA
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Plumettaz SA
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Publication date
Priority to EP98810227A priority Critical patent/EP0943570B1/en
Application filed by Plumettaz SA filed Critical Plumettaz SA
Priority to ES98810227T priority patent/ES2195299T3/en
Priority to DE69813764T priority patent/DE69813764T2/en
Priority to AT98810227T priority patent/ATE238220T1/en
Priority to CA002264369A priority patent/CA2264369C/en
Priority to JP6450399A priority patent/JP4741047B2/en
Priority to US09/266,721 priority patent/US6189758B1/en
Publication of EP0943570A1 publication Critical patent/EP0943570A1/en
Application granted granted Critical
Publication of EP0943570B1 publication Critical patent/EP0943570B1/en
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Expired - Lifetime legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00Forwarding filamentary material
    • B65H51/14Aprons, endless belts, lattices, or like driven elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00Problem to be solved or advantage achieved
    • B65H2601/30Facilitating or easing
    • B65H2601/32Facilitating or easing entities relating to handling machine
    • B65H2601/324Removability or inter-changeability of machine parts, e.g. for maintenance

Definitions

  • the training device must be able to adapt to different elongated objects to be transported, in particular the transverse dimension of said object, or its diameter in the case of a cylindrical object, by adjusting the spacing between the contact surfaces of the two drive means with two portions of opposite surfaces of the object to train.

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  • Forwarding And Storing Of Filamentary Material (AREA)
  • Transmission Devices (AREA)
  • Electric Cable Installation (AREA)
  • Vehicle Body Suspensions (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Braking Arrangements (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Surgical Instruments (AREA)

Abstract

The driving device (1) for a long object (2), such as a cable, comprises members (3) able to simultaneously separate or bring together two driving endless belts (11,12). The two endless belts are clamped onto the object regardless of its diameter and maintain the position of its longitudinal axis (20) constant. Adjustment of the space between the endless belts is obtained by a single handle (33). A spring absorbs any instantaneous variation of the transverse dimension of the object.

Description

La présente invention concerne un dispositif d'entraínement en déplacement d'un élément longiligne, comme par exemple un câble, un filin, une tige ou tout autre élément longiligne, rigide ou souple, de n'importe quel profil de section droite, tel que décrit dans le préambule de la revendication 1.The present invention relates to a drive device in displacement of a slender element, such as a cable, a rope, a rod or any other elongate element, rigid or flexible, of any cross section profile, as described in the preamble of claim 1.

On sait faire se déplacer un élément longiligne selon sa direction axiale en le serrant entre deux moyens d'entraínement, comme par exemple deux roues ou deux chenilles. Dans le cas où l'élément longiligne est rigide, comme par exemple une tige, le dispositif peut travailler en poussée ou en. traction. Dans le cas où l'élément longiligne est souple, comme par exemple un filin, le dispositif ne peut travailler qu'en traction.We know how to make a slender element move in its direction axial by clamping it between two drive means, such as for example two wheels or two tracks. In the case where the elongate element is rigid, like for example a rod, the device can work in thrust or in. traction. In the case where the elongate element is flexible, such as for example a rope, the device can only work in traction.

Le dispositif d'entraínement doit être apte à s'adapter à différents objets longilignes à transporter, notamment à la dimension transversale dudit objet, soit à son diamètre dans le cas d'un objet cylindrique, en réglant l'écartement entre les surfaces de contact des deux moyens d'entraínement avec deux portions de surfaces opposées de l'objet à entraíner.The training device must be able to adapt to different elongated objects to be transported, in particular the transverse dimension of said object, or its diameter in the case of a cylindrical object, by adjusting the spacing between the contact surfaces of the two drive means with two portions of opposite surfaces of the object to train.

Dans les dispositifs connus, comme par exemple celui décrit dans le brevet US-A-3.310.210, l'adaptation d'écartement entre les deux moyens d'entraínement se fait en conservant la position de l'un desdits moyens d'entraínement et en déplaçant transversalement l'autre desdits moyens d'entraínement jusqu'à ce que l'écartement permette le passage de l'objet entre les deux moyens d'entraínement. L'inconvénient d'un tel dispositif se révèle lorsqu'on désire faire se déplacer des éléments longilignes de diamètres assez différents. En gardant fixe un élément d'entraínement, on a un déplacement transversal de l'axe longitudinal de l'élément longiligne pour deux éléments longilignes de dimensions transversales différentes. Ceci peut être un inconvénient dans certaines situations, notamment dans les cas où l'alignement de l'axe de l'élément longiligne à entraíner, relativement à dès dispositifs qui précédent ou suivent le dispositif d'entraínement est important. In known devices, such as for example that described in the US-A-3,310,210, the adaptation of the spacing between the two means training is done by maintaining the position of one of said means drive and moving transversely the other of said means until the spacing allows the passage of the object between the two means of training. The drawback of such a device is revealed when you want to move elongated elements of fairly large diameters different. By keeping a drive element fixed, we have a displacement transverse of the longitudinal axis of the elongated element for two elements slender lines of different transverse dimensions. This can be a disadvantage in certain situations, especially in cases where alignment of the axis of the elongate element to be driven, relative to devices which preceding or following the training device is important.

Un autre inconvénient des dispositifs connus est qu'il est généralement difficile ou parfois impossible de régler la pression d'appui des deux moyens d'entraínement sur l'objet, tout en permettant au dispositif d'absorber une variation instantanée de la dimension transversale de l'objet lors par exemple du passage d'une épissure entre deux longueurs successives de l'objet.Another disadvantage of the known devices is that it is generally difficult or sometimes impossible to adjust the contact pressure two means of driving on the object, while allowing the device to absorb an instantaneous variation of the transverse dimension of the object for example when passing a splice between two successive lengths of the object.

Encore un autre inconvénient des dispositifs connus est que le réglage d'écartement s'établit en agissant successivement sur plusieurs moyens distincts, comme par exemple des vis de réglage, ce qui est fastidieux et peut nécessiter un réglage ultérieur de l'alignement exact des moyens d'entraínement, notamment quand il s'agit de deux chenilles.Yet another disadvantage of the known devices is that the distance adjustment is established by acting successively on several separate means, such as adjusting screws, which is tedious and may require subsequent adjustment of the exact alignment of the means drive, especially when it comes to two tracks.

D'autre part, pour les dispositifs d'entraínement à chenilles, il est parfois nécessaire de changer une ou les deux chenilles d'entraínement, soit pour des raisons d'usure, soit pour les adapter à l'élément longiligne à faire se déplacer. Dans les dispositifs connus, il est nécessaire de démonter au moins un des galets tendeur de chaque bande afin de détendre celle-ci, pour pouvoir procéder à l'échange.On the other hand, for tracked drive devices, it is sometimes necessary to change one or both of the drive tracks, either for reasons of wear, either to adapt them to the elongated element to be made move. In known devices, it is necessary to disassemble at least one of the tension rollers of each strip in order to relax it, in order to be able proceed to the exchange.

Un premier but de l'invention est de proposer un dispositif d'entraínement d'un élément longiligne muni de moyens de réglage d'écartement entre les deux moyens d'entraínement tels que la position de l'axe de l'élément longiligne est conservée, quelle que soit la dimension transversale dudit élément longiligne.A first object of the invention is to propose a device for driving a slender element provided with adjustment means spacing between the two drive means such as the position of the axis of the elongated element is preserved, whatever the dimension transverse of said elongate element.

Un deuxième but de l'invention est de proposer un dispositif d'entraínement dont les moyens de réglage de l'écartement sont simples à manipuler et permettent d'obtenir facilement une valeur de réglage de l'écartement des moyens d'entraínement sans qu'il soit nécessaire de régler ultérieurement un alignement desdits moyens d'entraínement.A second object of the invention is to propose a device drive whose spacing adjustment means are simple to manipulate and allow to easily obtain a setting value of the spacing of the drive means without the need to adjust subsequently alignment of said drive means.

Un autre but de l'invention est de proposer un dispositif d'entraínement dont les moyens de réglage d'écartement sont aptes à absorber une variation instantanée de la dimension transversale de l'objet. Another object of the invention is to propose a device drive whose spacing adjustment means are capable of absorbing an instantaneous variation of the transverse dimension of the object.

Encore un autre but de l'invention est de proposer un dispositif d'entraínement à chenilles d'un élément longiligne muni de moyens permettant un échange rapide d'une ou des deux chenilles.Yet another object of the invention is to propose a device drive track with a long element provided with means for rapid exchange of one or two tracks.

Le premier but mentionné est obtenu par un dispositif d'entraínement possédant les caractéristiques de la revendication 1.The first goal mentioned is obtained by a training device having the features of claim 1.

Des formes d'exécution particulières sont décrites dans les revendications dépendantes.Particular embodiments are described in dependent claims.

La description qui suit d'une forme d'exécution préférentielle d'un dispositif d'entraínement selon l'invention est à lire en regard du dessin annexé comportant les figures où:

  • la figure 1 est une vue par l'avant en perspective d'un dispositif d'entraínement selon une forme d'exécution préférentielle de l'invention,
  • la figure 2 est une vue par l'arrière en perspective du même dispositif d'entraínement,
  • la figure 3 est une coupe transversale des moyens de réglage d'écartement du dispositif des figures précédentes, et
  • la figure 4 est une coupe transversale d'un train de roulement d'une chenille.
  • The following description of a preferred embodiment of a drive device according to the invention should be read with reference to the appended drawing comprising the figures where:
  • FIG. 1 is a front perspective view of a drive device according to a preferred embodiment of the invention,
  • FIG. 2 is a rear perspective view of the same drive device,
  • FIG. 3 is a cross section of the spacing adjustment means of the device of the preceding figures, and
  • Figure 4 is a cross section of an undercarriage of a track.
  • Le dispositif d'entraínement 1 des figures 1 et 2 est représenté ouvert, c'est-à-dire sans son capot de protection. Le dispositif d'entraínement 1 est destiné à entraíner un objet longiligne 2, par exemple un câble, selon sa direction axiale représentée par la flèche A. L'objet entraíné 2 possède un axe longitudinal 20. Le dispositif d'entraínement 1 comprend une pièce de bâti fixe 10 sur laquelle sont montés, selon une manière décrite plus bas, un premier train de roulement d'une première chenille 11 et un deuxième train de roulement d'une deuxième chenille 12. Les deux chenilles 11 et 12 sont serrées parallèlement sur deux côtés opposés de l'objet 2 à entraíner, étant elles-mêmes entraínées en déplacement selon les directions marquées par les flèches B et C par des moyens motorisés 110 et 120. Le dispositif d'entraínement 1 comprend en outre un moyen de réglage 3 de l'écartement des deux chenilles 11 et 12 permettant d'adapter cet écartement à la dimension transversale, respectivement au diamètre, de l'objet 2 à entraíner.The drive device 1 of Figures 1 and 2 is shown open, i.e. without its protective cover. The training device 1 is intended to drive a long object 2, for example a cable, according to its axial direction represented by arrow A. The driven object 2 has an axis longitudinal 20. The drive device 1 comprises a fixed frame part 10 on which are mounted, in a manner described below, a first undercarriage of a first track 11 and a second undercarriage bearing of a second track 12. The two tracks 11 and 12 are clamped in parallel on two opposite sides of the object 2 to be driven, being themselves driven in displacement according to the directions marked by the arrows B and C by motorized means 110 and 120. The device drive 1 further comprises a means 3 for adjusting the spacing two tracks 11 and 12 allowing this spacing to be adapted to the dimension transverse, respectively to the diameter, of the object 2 to train.

    Sur la figure 1 on voit que chaque chenille 11 et 12 est constituée d'une bande sans fin dont le matériau, l'état de surface, les paramètres physiques comme la dureté ou l'adhérence superficielle peuvent être adaptés à l'objet 2 à entraíner. Chaque chenille 11 et 12 circule entre un premier rouleau d'entraínement 111 ou 121, entraíné chacun par son moyen motorisé 110 ou 120, et un rouleau de renvoi en rotation libre 112 ou 122. Entre ces deux rouleaux 111 et 112, respectivement 121 et 122 on a de préférence une pluralité de rouleaux d'appui 113, respectivement 123, en rotation libre, formant des arêtes d'appui, empêchant une déformation des chenilles 11 et 12 sur leur trajet en contact avec l'objet à entraíner 2. Dans l'exemple représenté, les rouleaux d'entraínement 111 et 121 sont placés à des extrémités opposées des deux chenilles 11 et 12 uniquement pour des raisons d'encombrement des moyens motorisés 110 et 120. Toute autre disposition desdits moyens motorisés est aussi possible, de même qu'il est aussi possible de n'avoir qu'un seul moyen motorisé 110 ou 120 entraínant une seule des deux chenilles 11 ou 12.In Figure 1 we see that each track 11 and 12 is constituted an endless band whose material, surface condition, parameters physical properties such as hardness or surface adhesion can be adapted to object 2 to train. Each track 11 and 12 runs between a first roller 111 or 121, each driven by its motorized means 110 or 120, and a freely rotating deflection roller 112 or 122. Between these two rollers 111 and 112, respectively 121 and 122 there is preferably a plurality of support rollers 113, respectively 123, in free rotation, forming support edges, preventing deformation of the tracks 11 and 12 on their path in contact with the object to be driven 2. In the example shown, the drive rollers 111 and 121 are placed at opposite ends of the two tracks 11 and 12 only for reasons of space requirement motorized means 110 and 120. Any other arrangement of said means motorized is also possible, just as it is also possible to have only one single motorized means 110 or 120 driving only one of the two tracks 11 or 12.

    En se reportant aux figures 2 et 3, on voit que chaque train de roulement des chenilles 11 et 12, respectivement le premier train de roulement constitué des rouleaux 111, 112 et 113, ainsi que le deuxième train de roulement constitué des rouleaux 121, 122 et 123, est monté sur une platine indépendante 114, respectivement 124. Les moyens de réglage 3 de l'écartement entre les deux chenilles 11 et 12, respectivement entre les deux platines 114 et 124, comprennent un support 30 fixé à la pièce de bâti 10. Le support 30 comprend sur son extrémité tournée vers les chenilles 11 et 12, des moyens de guidage constitués ici de deux colonnettes 300 fixées par des équerres support 301 au support 30. Chaque platine 114 et 124 comprend des saillies 115, respectivement 125, munies chacune d'un trou traversant engagé en coulissement sur l'une des colonnettes 300. Ainsi, chacune des platines 114 et 124 est apte à coulisser le long des colonnettes 300, de manière à rapprocher, respectivement éloigner chacune des chenilles 11 et 12 de l'objet 2 à entraíner. Au moins un ressort 302 est monté sur une colonnette 300 entre une équerre support 301 et une saillie 115 et 125 de chaque platine 114 et 124, de manière à écarter les deux platines 114 et 124, respectivement écarter les deux chenilles 11 et 12.Referring to Figures 2 and 3, we see that each train of rolling of tracks 11 and 12, respectively the first undercarriage consisting of rollers 111, 112 and 113, as well as the second train of bearing consisting of rollers 121, 122 and 123, is mounted on a plate 114, respectively 124. The adjustment means 3 of the spacing between the two tracks 11 and 12, respectively between the two plates 114 and 124, include a support 30 fixed to the frame part 10. The support 30 comprises on its end facing the tracks 11 and 12, guide means here consisting of two columns 300 fixed by support brackets 301 to support 30. Each plate 114 and 124 includes projections 115, respectively 125, each provided with an engaged through hole sliding on one of the posts 300. Thus, each of the plates 114 and 124 is capable of sliding along the balusters 300, so as to bring each of the tracks 11 and 12 closer to the object 2 respectively to train. At least one spring 302 is mounted on a baluster 300 between a support bracket 301 and a projection 115 and 125 of each plate 114 and 124, so as to separate the two plates 114 and 124, respectively separate the two tracks 11 and 12.

    Le rapprochement des deux platines 114 et 124, respectivement des deux chenilles 11 et 12 est commandé par un étrier 31, coulissant de préférence perpendiculairement à la direction de l'axe 20 de l'objet à entraíner et de préférence perpendiculairement à la direction de déplacement des platines 114 et 124, sur des moyens de guidage 32 fixés au support 30. Deux câblettes 310 (une seule étant visible sur les figures) sont tendues entre l'étrier 31 et chacune des platines 114 et 124, deux poulies de renvoi 311 renvoyant chacune des câblettes provenant de l'étrier 31 vers l'une ou l'autre des platines 114 et 124. On comprend donc qu'en déplaçant l'étrier 31 sur ses moyens de guidage 32, on exerce un effort de traction sur les deux câblettes 310, cet effort de traction étant transmis aux deux platines 114 et 124 provoquant leur rapprochement, respectivement diminuant la distance entre les deux brins en regard des chenilles 11 et 12.The bringing together of the two plates 114 and 124, respectively of the two tracks 11 and 12 is controlled by a stirrup 31, sliding from preferably perpendicular to the direction of the axis 20 of the object to train and preferably perpendicular to the direction of movement of the plates 114 and 124, on guide means 32 fixed to the support 30. Two cables 310 (only one visible in the figures) are stretched between the bracket 31 and each of the plates 114 and 124, two return pulleys 311 returning each of the cables coming from the bracket 31 to one or the other of the plates 114 and 124. It is therefore understandable that by moving the stirrup 31 on its means of guide 32, a tensile force is exerted on the two cables 310, this force of traction being transmitted to the two plates 114 and 124 causing their approximation, respectively decreasing the distance between the two strands in look of tracks 11 and 12.

    Ainsi, les deux platines 114 et 124 portant respectivement les deux chenilles 11 et 12, qui sont aptes à coulisser le long des moyens de guidage 300, s'écartent naturellement sous l'effet des ressorts 302 et peuvent être rapprochées en agissant sur l'étrier 31. Par l'effet d'écartement et de rapprochement simultané des deux platines 114 et 124 décrit ci-dessus, les deux chenilles 11 et 12 s'écartent ou se rapprochent simultanément et symétriquement par rapport à l'axe longitudinal 20 de l'objet à entraíner, la position dudit axe longitudinal étant ainsi conservée quelle que soit la dimension transversale de l'objet 2, respectivement le diamètre du câble 2. Thus, the two plates 114 and 124 respectively carrying the two tracks 11 and 12, which are able to slide along the guide means 300, move away naturally under the effect of the springs 302 and can be close together by acting on the stirrup 31. By the effect of spacing and simultaneous bringing together of the two plates 114 and 124 described above, the two tracks 11 and 12 move apart or approach simultaneously and symmetrically with respect to the longitudinal axis 20 of the object to be driven, the position of said longitudinal axis thus being preserved whatever the transverse dimension of the object 2, respectively the diameter of the cable 2.

    L'actionnement en déplacement de l'étrier 31 est commandé par une poignée 33 agissant sur l'étrier 31 par l'intermédiaire d'un arbre 34, traversant l'étrier 31, d'un moyen à ressort 35 et d'une douille de réglage 36. Une douille de déblocage 37, munie d'une collerette de saisie 370 est apte à coulisser sur la douille de réglage 36. Le dispositif comprend en outre un moyen de fixation en position réglée, constitué d'un piston 38 apte à coulisser perpendiculairement à l'axe de la douille de réglage 36 dans un logement du support 30. L'extrémité du piston 38 proche de la douille de réglage 36 comprend une pluralité de griffes 380 aptes à être engagées dans des griffes 360 correspondantes disposées sur une portion de la surface extérieure de la douille de réglage 36 en regard du piston 38. Un ressort 381 placé du côté du piston 38 opposé à celui muni des griffes 380 pousse le piston 38 afin que ces griffes 380 s'engagent dans les griffes correspondantes 360 de la douille de réglage 36 placées juste en face. Le piston 38 peut être actionné en direction inverse, soit pour dégager les griffes 380 des griffes 360, par l'intermédiaire d'un levier oblique 371 fixé par une de ses extrémités sur la douille de déblocage 37, son autre extrémité étant engagée dans un logement 382 du piston 38 et prenant appui sur une surface d'appui 383 dans ce logement. Le moyen à ressort 35 est disposé sur la portion de l'arbre 34 se trouvant de l'autre côté de l'étrier 31 relativement à la poignée 33. Le moyen à ressort 35 est composé, dans la forme d'exécution représentée, d'un empilement de rondelles à ressort, disposées coaxialement à l'arbre 34, et prenant appui d'un côté sur une face de l'étrier 31 et de l'autre côté sur un moyen d'arrêt 340, par exemple une portion de tige fixée transversalement sur l'extrémité de l'arbre 34. Entre l'autre face de l'étrier 31 et l'extrémité de la douille de réglage 36, on a de préférence un deuxième moyen à ressort 350, dont le chemin élastique et la constante de ressort sont nettement plus faibles que ceux des moyens à ressort 35 pour une raison qui sera expliquée plus bas. La douille de déblocage 37 ne peut se déplacer que longitudinalement, étant empêchée de pivoter sur son axe notamment par l'engagement du levier oblique 371 dans le logement 382. Des moyens similaires non représentés empêchent aussi le pivotement de la douille de réglage 36 sur son axe, celle-ci ne pouvant donc que se déplacer longitudinalement. Il en est de même pour l'arbre 34 qui est muni d'une clavette 341 montée sur une portion de pourtour et transversalement à l'axe longitudinal de l'arbre 34. Cette clavette 341, étant engagée dans une fente longitudinale 361 de la douille de réglage 36, limite les mouvements possibles de l'arbre 34 relativement à la douille de réglage 36, n'autorisant qu'un déplacement longitudinal d'amplitude limitée de l'arbre 34. L'arbre 34 comprend encore un filetage 342 sur son extrémité engagée dans la poignée 33.The movement of the stirrup 31 is controlled by a handle 33 acting on the stirrup 31 by means of a shaft 34, passing through the caliper 31, a spring means 35 and an adjusting sleeve 36. A sleeve release 37, provided with a gripping collar 370 is capable of sliding on the adjusting sleeve 36. The device further comprises a fixing means in the adjusted position, consisting of a piston 38 capable of sliding perpendicular to the axis of the adjustment sleeve 36 in a housing of the support 30. The end of the piston 38 close to the adjustment sleeve 36 comprises a plurality of claws 380 able to be engaged in claws 360 corresponding arranged on a portion of the outer surface of the adjustment sleeve 36 facing the piston 38. A spring 381 placed on the side of the piston 38 opposite to that provided with claws 380 pushes piston 38 so that these claws 380 engage in the corresponding claws 360 of the socket adjustment 36 placed just opposite. The piston 38 can be actuated in the direction reverse, either to disengage the claws 380 from the claws 360, via of an oblique lever 371 fixed by one of its ends to the sleeve of release 37, its other end being engaged in a housing 382 of the piston 38 and bearing on a bearing surface 383 in this housing. The spring means 35 is disposed on the portion of the shaft 34 located from the other side of the stirrup 31 relative to the handle 33. The spring means 35 is composed, in the embodiment shown, of a stack of spring washers, arranged coaxially with the shaft 34, and supported by a side on one side of the stirrup 31 and on the other side on a stop means 340, by example a portion of rod fixed transversely on the end of the tree 34. Between the other face of the stirrup 31 and the end of the adjustment sleeve 36, there is preferably has a second spring means 350, the elastic path of which and the spring constant are significantly lower than those of the means at spring 35 for a reason which will be explained below. The socket of release 37 can only move longitudinally, being prevented from pivot on its axis in particular by the engagement of the oblique lever 371 in the housing 382. Similar means not shown also prevent the pivoting of the adjustment sleeve 36 on its axis, the latter therefore being unable than move longitudinally. It is the same for tree 34 which is fitted with a key 341 mounted on a portion of the periphery and transversely to the longitudinal axis of the shaft 34. This key 341, being engaged in a longitudinal slot 361 of the adjustment sleeve 36, limit the possible movements of the shaft 34 relative to the adjustment sleeve 36, authorizing only a longitudinal displacement of limited amplitude of the shaft 34. The shaft 34 also includes a thread 342 on its end engaged in the handle 33.

    Il est maintenant possible de décrire la manière prévue dans cette forme d'exécution du dispositif pour serrer les deux chenilles 11 et 12 sur l'objet 2 à transporter. La figure 3 montre que les deux chenilles 11 et 12 sont écartées au maximum et qu'il s'agit de les serrer sur l'objet 2 placé entre elles. Pour ceci l'opérateur saisit la poignée 33 dans la paume de sa main et engage deux doigts sur la face arrière de la collerette de saisie 370 de manière à rapprocher cette collerette 370 de la poignée 33. De cette manière, la douille de déblocage 37 coulisse en direction de la poignée 33 faisant que le levier oblique 371 soulève le piston 38 dans son logement, ce qui libère les deux dentures 360 et 380, comme représenté sur la figure. Dans cet état, les deux chenilles 11 et 12 sont maintenues écartées par les ressorts 302 sur les colonnettes 300, ces ressorts ayant aussi une constante de ressort nettement inférieure à celle des rondelles ressort 35, la relation entre l'arbre 34 et l'étrier 31 peut être considérée comme rigide. En tirant alors la poignée 33 vers l'arrière, soit vers la gauche sur la figure 3, on fait donc reculer d'autant vers la gauche l'étrier 31, ce qui, par l'intermédiaire des câblettes 310, rapproche les deux chenilles 11 et 12. Dès que celles-ci arrivent au contact de l'objet 2, une résistance à la traction est ressentie sur la poignée 33 et l'opérateur peut relâcher la collerette de saisie 370, ce qui engage la denture 380 sur une portion de la denture 360 qui lui fait face, fixant alors l'étrier 31 selon une position déterminée de son déplacement dans laquelle les deux câblettes 310 sont tendues. Vu que les deux dentures 380 et 360 ont un certain pas, définissant des positions de réglage étagées, un réglage fin de position de l'étrier 31 et par conséquent des chenilles 11 et 12 peut être obtenu en vissant légèrement la poignée 33, ce qui, par l'intermédiaire du filetage 342 déplace légèrement l'arbre 34, en comprimant le deuxième moyen à ressort 350, jusqu'à ce que la valeur d'écartement désirée entre les deux chenilles 11 et 12 soit atteinte. En continuant à visser la poignée 3, il est possible de régler la force d'appui des deux chenilles 11 et 12 sur l'objet, cette force d'appui étant alors déterminée par les rondelles ressort 35. Un dispositif de repérage de position 343 est fixé sur l'extrémité de l'arbre 34 et fait saillie par le centre de la poignée 33. Par un contrôle visuel ou tactile de la longueur dont ledit dispositif sort du centre de la poignée, il est possible de relever la valeur du serrage appliqué à l'objet 2 par les chenilles 11 et 12. Deux marques repères (non représentées) peuvent en outre être disposées l'une sur la poignée 33 et l'autre sur le dispositif 343 afin de permettre d'ajuster finement le serrage par comparaison du déplacement angulaire entre les deux repères. Le déplacement possible limité de l'arbre 34 dans la douille de réglage 36 par la clavette 341 dans la fente 361 empêche un trop fort serrage des chenilles 11 et 12 sur l'objet 2.It is now possible to describe the manner provided in this embodiment of the device for tightening the two tracks 11 and 12 on object 2 to be transported. Figure 3 shows that the two tracks 11 and 12 are separated as far as possible and that it is a question of tightening them on the object 2 placed between them. For this the operator grasps the handle 33 in the palm of his hand and engages two fingers on the back of the 370 input flange so that bring this collar 370 closer to the handle 33. In this way, the sleeve release 37 slides in the direction of the handle 33 causing the lever oblique 371 raises the piston 38 in its housing, which frees the two teeth 360 and 380, as shown in the figure. In this state, both tracks 11 and 12 are kept apart by the springs 302 on the columns 300, these springs also having a clearly constant spring lower than that of the spring washers 35, the relationship between the shaft 34 and the caliper 31 can be considered rigid. Then pulling the handle 33 towards the rear, that is to the left in FIG. 3, so we move back as much towards the left the stirrup 31, which, by means of the cables 310, brings the two tracks 11 and 12. As soon as these come into contact with object 2, a tensile strength is felt on the handle 33 and the operator can release the grip flange 370, which engages the toothing 380 on a portion of the teeth 360 which faces it, then fixing the stirrup 31 according to a determined position of its displacement in which the two cables 310 are tense. Since the two teeth 380 and 360 have a certain pitch, defining stepped adjustment positions, fine adjustment of position of stirrup 31 and therefore tracks 11 and 12 can be obtained by screwing slightly the handle 33, which, by means of the thread 342 displaces slightly the shaft 34, compressing the second spring means 350, until the desired spacing value between the two tracks 11 and 12 be reached. By continuing to screw the handle 3, it is possible to adjust the bearing force of the two tracks 11 and 12 on the object, this bearing force being then determined by the spring washers 35. A device for locating position 343 is fixed on the end of the shaft 34 and projects from the center of the handle 33. By a visual or tactile control of the length of which said device comes out of the center of the handle, it is possible to read the tightening value applied to object 2 by tracks 11 and 12. Two reference marks (not shown) can also be arranged one on the handle 33 and the other on the device 343 in order to allow fine adjustment of the tightening by comparison of the angular displacement between the two marks. The possible limited movement of the shaft 34 in the adjustment sleeve 36 by the key 341 in the slot 361 prevents over-tightening of the tracks 11 and 12 on object 2.

    Lors du fonctionnement du dispositif pour entraíner l'objet 2, il peut se trouver la situation où la dimension transversale de l'objet 2, notamment son diamètre, peut varier brusquement, par exemple au passage d'une épissure entre deux longueurs successives dudit objet. Dans ce cas le dispositif décrit est apte à supporter cette variation de dimension, soit une variation subite d'écartement des chenilles 11 et 12, par les rondelles ressort 35 qui sont aptes à absorber cet écart.During the operation of the device for driving the object 2, it can find the situation where the transverse dimension of the object 2, in particular its diameter, can vary suddenly, for example when passing a splice between two successive lengths of said object. In this case the device described is able to support this variation of dimension, that is to say a sudden variation spacing of the tracks 11 and 12, by the spring washers 35 which are suitable to absorb this gap.

    Afin d'écarter à nouveau les chenilles 11 et 12, il suffit d'agir sur la collerette 371 pour dégager le piston 38 et en conséquence les dentures 380 et 360, puis de repousser la poignée vers la droite de la figure afin de libérer la tension exercée sur les câblettes 310, l'écartement des deux platines 114 et 124 étant alors provoqué par les ressorts 302 comme indiqué plus haut.In order to once again separate the tracks 11 and 12, it suffices to act on the flange 371 to release the piston 38 and consequently the teeth 380 and 360, then push the handle to the right of the figure to release the tension exerted on the cables 310, the spacing of the two plates 114 and 124 then being caused by the springs 302 as indicated above.

    On distingue sur la figure 3 que les dentures 360 et 380 sont asymétriques afin d'améliorer l'effet de blocage selon une technique connue.It can be seen in FIG. 3 that the teeth 360 and 380 are asymmetrical in order to improve the blocking effect according to a known technique.

    On voit donc que par un dispositif tel que décrit, il est possible de régler l'espace entre les deux chenilles 11 et 12 de même que la pression exercée par les chenilles sur l'objet à entraíner de manière simple, rapide et précise, à l'aide d'une seule main. Le dispositif de réglage décrit ici est particulièrement compact et est adapté pour un dispositif d'entraínement de faibles dimensions, comme par exemple un dispositif facilement utilisable sur un chantier.It can therefore be seen that by a device as described, it is possible to adjust the space between the two tracks 11 and 12 as well as the pressure exerted by the tracks on the object to train in a simple, fast and precise, using just one hand. The adjustment device described here is particularly compact and is suitable for a training device of small dimensions, such as an easily usable device on a building site.

    D'autres configurations peuvent être envisagées pour assurer la liaison entre l'étrier mobile 31 et les platines indépendantes 114 et 124; par exemple des moyens comportant des tiges et des cames sont envisageables; d'autre part il n'est pas absolument nécessaire que la direction de déplacement de l'étrier soit perpendiculaire à la direction de déplacement des platines et/ou à l'axe à conserver, dans ce cas des moyens de renvoi de direction adaptés sont à prévoir. Pour des dispositifs plus importants, par exemple un dispositif d'entraínement installé à demeure sur une machine de production en usine, d'autres moyens, manuels ou motorisés, peuvent être prévus pour déplacer l'étrier 31 d'une valeur déterminée.Other configurations can be envisaged to ensure the connection between the movable bracket 31 and the independent plates 114 and 124; through example of the means comprising rods and cams are possible; on the other hand it is not absolutely necessary that the direction of movement of the stirrup is perpendicular to the direction of movement of the plates and / or to the axis to be kept, in this case suitable steering gear are to be expected. For larger devices, for example a device drive permanently installed on a factory production machine, other means, manual or motorized, can be provided to move the stirrup 31 of a determined value.

    Le dispositif a été décrit comme étant un dispositif d'entraínement par chenilles; on pourrait tout aussi bien avoir deux roues d'entraínement, chacune montée sur une platine indépendante comme indiqué et fonctionnant exactement comme décrit pour le dispositif à chenilles.The device has been described as being a training device by tracks; we might as well have two drive wheels, each mounted on an independent plate as indicated and operating exactly as described for the tracked device.

    L'objet à entraíner a été décrit comme étant un câble ayant un certain diamètre; en fait l'objet longiligne mentionné peut être de n'importe quelle forme transversale apte à être entraíné par un dispositif d'entraínement à chenilles ou à roues. Quelle que soit la dimension transversale de l'objet à entraíner, le dispositif d'entraínement permet que l'axe de l'objet à entraíner soit toujours placé au même endroit.The object to be trained has been described as being a cable having a certain diameter; in fact the slender object mentioned can be of any which transverse shape suitable for being driven by a drive device tracked or wheeled. Whatever the transverse dimension of the object to drive, the drive device allows the axis of the object to be trained is always placed in the same place.

    La figure 4 montre une autre amélioration apportée à un dispositif d'entraínement par chenilles. Comme indiqué plus haut, il peut être nécessaire de changer la chenille, soit parce qu'elle est usée, soit alors pour adapter ses qualités mécaniques, par exemple dureté, adhérence superficielle, état de surface, épaisseur, à l'objet à entraíner. La figure 4 montre une coupe du train de chenille inférieur des figures précédentes. On y distingue notamment la platine 124, la chenille 12, le rouleau entraíneur 121, le rouleau de renvoi 122 faisant office de rouleau tendeur, ainsi que les rouleaux intermédiaires 123. En considérant le rouleau tendeur 122, on voit que son axe de rotation 126 est monté sur un arbre 127 portant une portion d'arbre 128 excentrée relativement à l'axe de rotation 126. La portion d'arbre excentrée 128 est engagée en pivotement dans un logement de la platine 124. Un levier 129 est fixé à l'extrémité de l'arbre 127 permettant de faire basculer l'arbre 127 autour de sa portion d'arbre 128, ce qui détend la chenille 12, permettant ainsi de la retirer pour la remplacer. On voit à la figure 1 une butée 130 permettant de maintenir le levier 129 en une position correspondant à la position tendue de la chenille 11. Le train de chenille supérieur est équipé du même dispositif.Figure 4 shows another improvement to a device track drive. As noted above, it may be necessary to change the track, either because it is worn, or to adapt its mechanical qualities, for example hardness, surface adhesion, state of surface, thickness, to the object to train. Figure 4 shows a section of the train of the lower track of the previous figures. One distinguishes in particular the plate 124, the track 12, the driving roller 121, the deflection roller 122 acting as a tension roller, as well as the intermediate rollers 123. In considering the tensioning roller 122, it can be seen that its axis of rotation 126 is mounted on a shaft 127 carrying a relatively eccentric shaft portion 128 to the axis of rotation 126. The eccentric shaft portion 128 is engaged in pivoting in a housing of the plate 124. A lever 129 is fixed to the end of the shaft 127 making it possible to tilt the shaft 127 around its shaft portion 128, which relaxes the track 12, thus allowing it to be removed to replace it. We see in Figure 1 a stop 130 for maintaining lever 129 in a position corresponding to the stretched position of the track 11. The upper crawler train is fitted with the same device.

    Un tel dispositif permettant un changement rapide d'une chenille, sans qu'il soit nécessaire de procéder à un démontage fastidieux d'une portion de la machine peut être installé sur n'importe quel dispositif d'entraínement à chenilles, notamment sur un dispositif d'entraínement à chenilles muni des moyens de réglage de l'écartement des deux chenilles comme décrit précédemment.Such a device allowing a quick change of a track, without the need to tediously disassemble a portion of the machine can be installed on any training device tracks, in particular on a track drive device provided with means for adjusting the spacing of the two tracks as described previously.

    Claims (19)

    1. Driving device (1) for an elongated object (2) comprising a stationary frame portion (10) and two driving means (11, 12) each pressing in a symmetric way on at least one opposite surface portion of said object, each driving means (11, 12) being mounted on an independent plate (114, 124) that can slide on guiding means (300) fastened to said stationary frame portion (10), as well as adjusting means (3) for the gap between said driving means that are able to simultaneously and symmetrically adjust the position of each of the driving means in two opposite directions perpendicular to a longitudinal axis (20) of the elongated object to be driven, by sliding motion of said plates on said guiding means (300), the gap between said plates (114, 124) being controlled by first spring means (302) while the approach of said plates (114, 124) is controlled by moving a mobile yoke (31) slidingly mounted on a support (30) fastened to said frame portion (10), said mobile yoke being connected with each of said mobile plates (114, 124).
    2. Device according to claim 1, characterized in that each plate (114, 124) is connected with said mobile yoke (31) via a flexible element (310) of constant length passing over at least one return pulley (311).
    3. Device according to claim 2, characterized in that the flexible elements each consist of a cable element (310) of specific length, one end of each of said cable elements being fastened to said mobile yoke (31), the other end of each cable element being fastened to a specific plate (114, 124).
    4. Device according to one of the preceding claims, characterized in that the mobile yoke (31) is made to move by a handle (33) located at one end of a control shaft (34) that with its other end is connected with said mobile yoke.
    5. Device according to claim 4, characterized in that the connection between the other end of the control shaft (34) and the mobile yoke (31) is realized through a second spring means (35).
    6. Device according to claim 5, characterized in that the mobile yoke (31) is slidingly mounted on the control shaft (34) and that the second spring means consists of a compression spring (35) of which one end is fastened to the end of the control shaft (34) opposite to that provided with the handle (33), its other end resting on a first face of said mobile yoke.
    7. Device according to claim 6, characterized in that the adjusting position of said mobile yoke (31) is obtained by a means of arresting (36, 38) of said control shaft (34) in a specific longitudinal position of said control shaft relative to said support (30) fastened to said frame portion (10).
    8. Device according to claim 7, characterized in that said means of arresting consists of an adjusting sleeve (36) sliding on a portion of said control shaft (34) close to handle (33), the end of said adjusting sleeve (36) close to the mobile yoke (31) resting against the face of said mobile yoke opposite to said first face, and one portion of the outside of said adjusting sleeve (36) comprising a set of teeth (360) able to engage with a corresponding set of teeth (380) of a mobile piston (38) located in a bearing of said support (30), said mobile piston (38) being able to engage or disengage said two sets of teeth (360, 380).
    9. Device according to claim 8, characterized in that the end of said adjusting sleeve (36) close to the mobile yoke (31) rests against the face of said mobile yoke opposite to said first face, via a third spring means (350), the spring rate and the spring path of said third spring means (350) being smaller than the corresponding values for the second spring means (35), and the other end of the adjusting sleeve (36) resting against the handle (33).
    10. Device according to one of claims 8 or 9, characterized in that it further comprises a releasing sleeve (37) slidingly mounted on the adjusting sleeve (36), said releasing sleeve comprising a pulling means (370) at its end close to handle (33) as well as an actuating means (371) for said mobile piston (38) able to disengage said two sets of teeth (360, 380).
    11. Device according to one of claims 9 or 10, characterized in that the releasing sleeve (37), the adjusting sleeve (36) and the control shaft (34) comprise means (371, 382, 341, 361) able to prevent their rotation about their longitudinal axes.
    12. Device according to claim 11, characterized in that the handle (33) is connected with the end of the control shaft (34) via a thread (342), while screwing or unscrewing of the handle (33) resting against the end of the adjusting sleeve (36) allow the position of adjustment of the mobile yoke (31) or gap between the two driving means (11, 12) to be fine adjusted by a longitudinal displacement of the control shaft (34) driving said mobile yoke.
    13. Device according to claim 12, characterized in that the screwing and unscrewing of the handle (33) at the end of the control shaft (34) further allow the pressure of application of the driving means (11, 12) on the driven object (2) to be adjusted.
    14. Device according to claim 13, characterized in that the end of the control shaft (34) close to the handle (33) comprises a projecting mark (343) whose position relative to handle (33) indicates the adjusted value of the pressure of application of the two driving means (11, 12).
    15. Device according to one of the preceding claims, characterized in that the driving means each consist of one driving wheel, where at least one of said driving wheels is rotated by a motorized means.
    16. Device according to one of claims 1 to 14, characterized in that the driving means each consist of a track belt (11, 12) disposed on a roller track frame (111, 112, 113; 121, 122, 123), the roller track frame of at least one of said track belts comprising a roller (111, 121) rotated by a motorized means (110, 120).
    17. Device according to claim 16, characterized in that the roller track frame of at least one track belt comprises a roller (112, 122) mounted rotatably about a first axis of rotation (126) on a shaft (127) provided with a bearing surface (128) eccentric and parallel to said first axis (126), said shaft (127) further comprising at one of its ends a lever (129) able to make said shaft (127) pivot about said eccentric bearing surface (128) so as to relax the track belt (11, 12) mounted on said roller track frame.
    18. Use of a driving device (1) according to one of the preceding claims as a mobile device on a work site.
    19. Use of a driving device (1) according to one of the claims 1 to 17 as stationary device in a production line.
    EP98810227A 1998-03-18 1998-03-18 Apparatus for advancing an elongated element Expired - Lifetime EP0943570B1 (en)

    Priority Applications (7)

    Application Number Priority Date Filing Date Title
    ES98810227T ES2195299T3 (en) 1998-03-18 1998-03-18 TRAVEL DEVICE IN DISPLACEMENT OF A LONG ELEMENT.
    DE69813764T DE69813764T2 (en) 1998-03-18 1998-03-18 Drive device for moving an elongated element
    AT98810227T ATE238220T1 (en) 1998-03-18 1998-03-18 DRIVE DEVICE FOR MOVING AN ELONGATED ELEMENT
    EP98810227A EP0943570B1 (en) 1998-03-18 1998-03-18 Apparatus for advancing an elongated element
    CA002264369A CA2264369C (en) 1998-03-18 1999-03-03 Longilineal moving element drive
    JP6450399A JP4741047B2 (en) 1998-03-18 1999-03-11 Drive device for advancing elongate elements
    US09/266,721 US6189758B1 (en) 1998-03-18 1999-03-12 Driving device using a flexible element to adjust the nip gap

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP98810227A EP0943570B1 (en) 1998-03-18 1998-03-18 Apparatus for advancing an elongated element

    Publications (2)

    Publication Number Publication Date
    EP0943570A1 EP0943570A1 (en) 1999-09-22
    EP0943570B1 true EP0943570B1 (en) 2003-04-23

    Family

    ID=8235991

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98810227A Expired - Lifetime EP0943570B1 (en) 1998-03-18 1998-03-18 Apparatus for advancing an elongated element

    Country Status (7)

    Country Link
    US (1) US6189758B1 (en)
    EP (1) EP0943570B1 (en)
    JP (1) JP4741047B2 (en)
    AT (1) ATE238220T1 (en)
    CA (1) CA2264369C (en)
    DE (1) DE69813764T2 (en)
    ES (1) ES2195299T3 (en)

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    Also Published As

    Publication number Publication date
    DE69813764T2 (en) 2004-02-05
    CA2264369A1 (en) 1999-09-18
    CA2264369C (en) 2008-01-22
    EP0943570A1 (en) 1999-09-22
    US6189758B1 (en) 2001-02-20
    ES2195299T3 (en) 2003-12-01
    ATE238220T1 (en) 2003-05-15
    DE69813764D1 (en) 2003-05-28
    JPH11314844A (en) 1999-11-16
    JP4741047B2 (en) 2011-08-03

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