WO2021044209A1 - Drive device for pushing or pulling a wire without damaging the peripheral surface thereof - Google Patents

Drive device for pushing or pulling a wire without damaging the peripheral surface thereof Download PDF

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Publication number
WO2021044209A1
WO2021044209A1 PCT/IB2020/000662 IB2020000662W WO2021044209A1 WO 2021044209 A1 WO2021044209 A1 WO 2021044209A1 IB 2020000662 W IB2020000662 W IB 2020000662W WO 2021044209 A1 WO2021044209 A1 WO 2021044209A1
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WO
WIPO (PCT)
Prior art keywords
wire
belt
groove
branches
housing
Prior art date
Application number
PCT/IB2020/000662
Other languages
French (fr)
Inventor
Gianfranco Passoni
Original Assignee
Robotic Consulting Sarl
BOSSON, François
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robotic Consulting Sarl, BOSSON, François filed Critical Robotic Consulting Sarl
Publication of WO2021044209A1 publication Critical patent/WO2021044209A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H02G1/085—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using portable tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
    • B65H51/10—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips
    • B65H51/105—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips one of which is an endless belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/32—Optical fibres or optical cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/34—Handled filamentary material electric cords or electric power cables

Definitions

  • Driving device for pushing or pulling a wire without damaging its peripheral surface.
  • the present invention relates to a drive device for pushing or pulling a wire without damaging its peripheral surface, comprising a housing in which is disposed a pulley driven by a motor.
  • This type of device is generally used to introduce wires or optical fibers into pipes.
  • the invention aims to provide a driving device for pushing or pulling a thread without damaging its surface, which does not have the defects of known devices, that is to say which does not include a reserve of thread. and which can be used with synthetic threads or optical fibers, and moreover which is light, comprising few parts, therefore easy to manufacture, therefore inexpensive.
  • Figure 1 shows a schematic perspective view of a device according to the invention showing only the bottom of the housing under its front face.
  • Figure 2 shows a schematic perspective view of the device shown in Figure 1 showing only the bottom of the housing under its rear face.
  • FIG. 3 represents the same device as that of FIG. 1 in more detail.
  • Figure 4 shows a schematic plan view of the device shown in Figure 1.
  • FIG. 5 represents a schematic view of the section AA of FIG. 4.
  • FIG. 6 represents a schematic perspective view of section AA of FIG. 4.
  • Figure 6B schematically shows a detail of Figure 6.
  • Figure 7 shows a schematic perspective view of another embodiment.
  • Figure 8 shows a section through the wedge 8 of Figure 7.
  • Figure 9 shows a schematic plan view of another embodiment of the device than that shown in Figure 1.
  • Figures 10, 11 and 12 each show a detail of several variations of the embodiment shown in Figure 9.
  • the device shown in FIG. 1 represents an embodiment of the device claimed in claim 1.
  • This device comprises a housing of which it has been shown that the base 1 comprising an opening 29.
  • On this base 1 are arranged on the front side, which represents the part disposed inside said case, a crown 5 having at its circumference a groove 18, see FIG. 6B, U-shaped with a flat bottom, the opening of which is directed towards the outside of said crown held in place by guide wedges 7a and 7b, and a pulley 4 rotating around the axis 13, and tubes 9 and 10.
  • the pulley 4 is kept in rotation by the motor 2 by means of a reduction unit 12 arranged on the side posterior opposite to the anterior side.
  • the reduction group 12 drives the axis 13 which is fixed to the pulley 4.
  • the pulley 4 can have a smooth or knurled surface, but it can also have a groove into which the belt is inserted 3.
  • the belt 3 is inserted. in the groove 18 of the crown 5, see figure 6B.
  • the belt 3 driven by the pulley 4 drives the crown 5 in rotation.
  • the belt 3 covers the turns of wire 11 (ftg 6B) arranged in the groove 18 by compressing them on the bottom of said groove. So that the belt 3 ensures good rotation of the crown 5, means are provided for tensioning said belt, these tensioning means are for example constituted by a roller 6 arranged freely in rotation on the axis 14 and supported by its peripheral surface on the inner surface of the ring 5.
  • the roller 6 can move substantially radially relative to the ring 5.
  • the roller 6 is mounted on a pin 14 fixed on a lever 19, this lever 19 is arranged articulated on an axis 15.
  • the lever 19 is pulled by a spring 20 by means of the axis 22 and said spring is fixed on the rear side of the base 1 by means of a axis 21.
  • the spring 20 may comprise means for adjusting its tension, these means are not shown because they are within the reach of those skilled in the art.
  • the belt 3 could be tensioned by a device comprising a lever held by a spring, these tensioning means are not shown because they are within the reach of those skilled in the art.
  • the device shown in FIG. 1 is loaded with a wire 11, comprising at its end a probe 23, ready to be introduced into a tube 25 arranged in a box 24 arranged in a wall.
  • a wire comprising at its end a probe 23, ready to be introduced into a tube 25 arranged in a box 24 arranged in a wall.
  • To load a wire into the device it is necessary to introduce the wire 11 into the tube 10 fixed on the bottom 1 by the wedge 16 and push it inside so that it passes between the guide wedge 8 and the ring 5 in the groove 18 (see figure 6B).
  • the wire 11 will continue its way in the groove 18 held at the bottom of the latter by the belt 3. Then the wire 11 will go around the crown 5 in the groove 18 and will pass again under the guide wedge 8.
  • the wedge 8 has a width slightly less than the distance separating the two uprights of said U so that it can be maintained between the latter by maintaining the wire 11 against the crown 5 increasing its friction on the latter.
  • the wire 11 will make more than one turn on the crown 5, then it will come out through the tube 9 fixed on the bottom 1 by the wedge 17 and will enter the tube 25 by probe 23.
  • the elastic means ensuring the movement of the wedge 8 are similar to those described for the roller 6 in FIG. 2.
  • the wedge 8 has a width slightly less than the distance separating the two uprights of said U so that it can be held between the latter while maintaining the wire 11 against the crown 5 increasing its friction on the latter.
  • the wedge 8 has rollers 28 bearing against the wire 11 to facilitate the movement of the wire 11.
  • the rollers 28 are mounted on pins 26 in the wedge 8 (see Figures 7 and 8) and this wedge is fixed to the pin 27, which is fixed to a lever identical to the lever 19, not shown. Thus the wedge 8 will push the crown 5 away from the pulley 4 and tension the belt 3.
  • the chain is replaced by a toothed belt 3 as in the embodiment shown in Figure 1.
  • the belt 3 which maintains the wire 11 under pressure in the groove 31 provided in the base 18.
  • the chain is replaced by a circular section belt 30 is the bottom of the U is no longer flat but in the shape of a V. As can be seen in FIG. 10, it is the belt 30, which keeps the wire 11 under pressure in the bottom of the V.
  • the invention makes it possible to obtain a driving device for pushing or pulling a wire without damaging its peripheral surface, exhibiting a large pushing or pulling force, since the frictional force on the crown is provided by the pressure of the belt. on the fiM 1.

Abstract

A drive device for pushing or pulling a wire without damaging the peripheral surface thereof comprises a housing (1) in which there is arranged a pulley (4) driven by a motor (2). Placed inside the housing is a rotary annulus (5) having at its circumference a U-shaped flat-bottomed groove (18, see figure 6B) or a V-shaped groove with its opening facing toward the outside of said annulus. This annulus is rotationally driven by a flat or toothed flexible belt (3) of a width equal to or less than the distance between the two branches of said U so as to fit between the two branches of said U and maintain pressure on said wire in the bottom of said groove. Said belt is driven by passing over said pulley (4). Said housing has an inlet tube (10) and an outlet tube (9), these said tubes being designed to allow said wire to be introduced into the groove around the annulus, forcing it to make at least one turn about the latter and re-emerge from said groove.

Description

Dispositif d'entrainement pour pousser ou tirer un fil sans abîmer sa surface périphérique. Driving device for pushing or pulling a wire without damaging its peripheral surface.
La présente invention a pour objet un dispositif d’entrainement pour pousser ou tirer un fil sans abîmer sa surface périphérique, comportant un boîtier dans lequel est disposée une poulie entraînée par un moteur. Ce genre de dispositif est généralement utilisé pour introduire des fils ou des fibres optiques dans des canalisations. The present invention relates to a drive device for pushing or pulling a wire without damaging its peripheral surface, comprising a housing in which is disposed a pulley driven by a motor. This type of device is generally used to introduce wires or optical fibers into pipes.
Le problème d'introduire notamment des câbles électriques dans des conduits ou gaines est connu depuis longtemps. On trouvera des exposés de ce dernier problème par exemple dans les demandes de brevet publiée WO 2010/111801 et FR 82537795. The problem of inserting electric cables in particular into conduits or sheaths has been known for a long time. Statements of the latter problem will be found, for example, in published patent applications WO 2010/111801 and FR 82537795.
Actuellement ce problème a été résolu notamment par des dispositifs comme ceux exposés, par exemple, dans les publications US 2556484 (publiée le 12.06.1951), US 6722603 (publiée le 20.04.2004) et US 4413808 (publiée le 08.11.1983). Tous ces dispositifs connus définissent des dispositifs comportant un boîtier dans lequel est enroulé une longueur de fil destiné à être introduit et ressortit d’un tube. Ainsi, ils pourront être utilisés dans des installations qui présentent des tubes qui ont une longueur, qui doit être inférieure à la longueur du fil contenu dans les dispositifs. Pour utiliser ces dispositifs dans des installations qui ont des longueurs de tube plus grandes il faudra changer la réserve de fil dans lesdits dispositifs, ce qui apportera des complications techniques. De plus, ces dispositifs sont compliqués et relativement chers. Currently this problem has been solved in particular by devices such as those disclosed, for example, in the publications US 2556484 (published June 12, 1951), US 6722603 (published April 20, 2004) and US 4413808 (published November 8, 1983). All of these known devices define devices comprising a housing in which is wound a length of wire intended to be introduced and exit from a tube. Thus, they can be used in installations which have tubes which have a length, which must be less than the length of the wire contained in the devices. To use these devices in installations which have longer tube lengths, it will be necessary to change the reserve of wire in said devices, which will bring technical complications. In addition, these devices are complicated and relatively expensive.
On connaît aussi des dispositifs qui n’ont pas les défauts des dispositifs décrits ci-dessus, par exemple dans le brevet FR 1.586.534 (publié le 20.02.1970), il est décrit un dispositif qui se présente sous forme d’un pistolet et qui peut pousser ou tirer un fil d’acier dans un tube. Le fil d’acier est poussé ou tiré en étant serré élastiquement entre deux paires de disques. Ce dispositif ne être utilisé qu’avec un fil d’acier, car il faut une forte pression pour le déplacer. Ce dispositif ne peut pas être utilisé avec des fils en matière synthétique encore moins avec des fibres optiques. Un autre dispositif est décrit dans le brevet ES 2561703 (publié le 04.02.2016). Ce dernier dispositif fonctionne de la même manière que celui décrit dans le brevet français, donc il sera inutilisable avec des fils synthétiques ou des fibres optiques. Devices are also known which do not have the defects of the devices described above, for example in patent FR 1,586,534 (published on February 20, 1970), a device is described which is in the form of a gun. and who can push or pull a steel wire through a tube. The steel wire is pushed or pulled by being elastically clamped between two pairs of discs. This device can only be used with a steel wire, because it takes a lot of pressure to move it. This device cannot be used with synthetic material wires, even less with optical fibers. Another device is described in patent ES 2561703 (published 02.04.2016). The latter device works in the same way as that described in the French patent, so it will be unusable with synthetic threads or optical fibers.
L’invention a pour buts de fournir un dispositif d’entrainement pour pousser ou tirer un fil sans abîmer sa surface, qui n’a pas les défauts des dispositifs connus, c’est-à-dire qui ne comporte pas de réserve de fil et qui puisse être utilisé avec des fils synthétiques ou des fibres optiques, et de plus qui soit léger, comportant peu de pièces, donc facile à fabriquer, donc bon marché. The invention aims to provide a driving device for pushing or pulling a thread without damaging its surface, which does not have the defects of known devices, that is to say which does not include a reserve of thread. and which can be used with synthetic threads or optical fibers, and moreover which is light, comprising few parts, therefore easy to manufacture, therefore inexpensive.
Ces buts sont atteints avec le dispositif d’entrainement pour pousser ou tirer un fil sans abîmer sa surface périphérique selon l’invention définie à la revendication 1. These goals are achieved with the drive device for pushing or pulling a thread without damaging its peripheral surface according to the invention defined in claim 1.
L’invention sera mieux comprise et ses avantages apparaîtront plus clairement à la lecture de la description de formes d’exécution, données uniquement à titre d’exemple, en regard des dessins sur lesquels : The invention will be better understood and its advantages will appear more clearly on reading the description of the embodiments, given only by way of example, with regard to the drawings in which:
La figure 1 représente une vue schématique en perspective d’un dispositif selon l’invention présentant seulement le fond du boîtier sous sa face antérieure. Figure 1 shows a schematic perspective view of a device according to the invention showing only the bottom of the housing under its front face.
La figure 2 représente une vue schématique en perspective du dispositif représenté à la figure 1 présentant seulement le fond du boîtier sous sa face postérieure. Figure 2 shows a schematic perspective view of the device shown in Figure 1 showing only the bottom of the housing under its rear face.
La figure 3 représente le même dispositif que celui de la figure 1 avec plus de détails. FIG. 3 represents the same device as that of FIG. 1 in more detail.
La figure 4 représente une vue schématique en plan du dispositif représenté à la figure 1. Figure 4 shows a schematic plan view of the device shown in Figure 1.
La figure 5 représente une vue schématique de la coupe A-A de la figure 4. La figure 6 représente une vue schématique en perspective de la coupe A-A de la figure 4. FIG. 5 represents a schematic view of the section AA of FIG. 4. FIG. 6 represents a schematic perspective view of section AA of FIG. 4.
La figure 6B représente schématiquement un détail de la figure 6. Figure 6B schematically shows a detail of Figure 6.
La figure 7 représente une vue schématique en perspective d’une autre forme d’exécution. Figure 7 shows a schematic perspective view of another embodiment.
La figure 8 représente une coupe à travers la cale 8 de la figure 7. Figure 8 shows a section through the wedge 8 of Figure 7.
La figure 9 représente une vue schématique en plan d’une autre forme d’exécution du dispositif que celle représentée à la figure 1. Figure 9 shows a schematic plan view of another embodiment of the device than that shown in Figure 1.
La figure 10, 11 et 12 représente chacune un détail de plusieurs variantes de la forme d’exécution représentée à la figure 9. Figures 10, 11 and 12 each show a detail of several variations of the embodiment shown in Figure 9.
Afin de faciliter la compréhension des figures toutes les caractéristiques de l’invention ont les mêmes signes de référence sur toutes les figures. In order to facilitate understanding of the figures, all of the features of the invention have the same reference signs in all of the figures.
Le dispositif montré à la figure 1 représente une forme d’exécution du dispositif revendiqué à la revendication 1. Ce dispositif comporte un boîtier dont on a représenté que le fond 1 comportant une ouverture 29. Sur ce fond 1 sont disposés coté antérieur, qui représente la partie disposée à l’intérieur dudit boîtier, une couronne 5 présentant à sa circonférence une rainure 18, voir figure 6B, en forme de U à fond plat dont l’ouverture est dirigée vers l’extérieur de la dite couronne maintenue en place par des cales de guidage 7a et 7b, et une poulie 4 tournant autour de l’axe 13, et des tubes 9 et 10. La poulie 4 est maintenue en rotation par le moteur 2 au moyen d’un groupe réducteur 12 disposé sur le côté postérieur opposé au côté antérieur. Le groupe réducteur 12 entraîne l’axe 13 qui est fixé à la poulie 4. The device shown in FIG. 1 represents an embodiment of the device claimed in claim 1. This device comprises a housing of which it has been shown that the base 1 comprising an opening 29. On this base 1 are arranged on the front side, which represents the part disposed inside said case, a crown 5 having at its circumference a groove 18, see FIG. 6B, U-shaped with a flat bottom, the opening of which is directed towards the outside of said crown held in place by guide wedges 7a and 7b, and a pulley 4 rotating around the axis 13, and tubes 9 and 10. The pulley 4 is kept in rotation by the motor 2 by means of a reduction unit 12 arranged on the side posterior opposite to the anterior side. The reduction group 12 drives the axis 13 which is fixed to the pulley 4.
La poulie 4 peut avoir une surface lisse ou moletée, mais elle peut aussi avoir une rainure dans laquelle est introduite la courroie 3. La courroie 3 est introduite dans la rainure 18 de la couronne 5, voir figure 6B. La courroie 3 entraînée par la poulie 4 entraîne en rotation la couronne 5. De plus la courroie 3 recouvre les spires de fil 11 (ftg 6B) disposées dans la rainure 18 en les comprimant sur le fond de la dite rainure. Pour que la courroie 3 assure une bonne rotation de la couronne 5 il est prévu des moyens de tension de ladite courroie, ces moyens de tension sont par exemple constitués par un galet 6 disposé libre en rotation sur l’axe 14 et s’appuyant par sa surface périphérique sur la surface intérieure de la couronne 5. Le galet 6 peut se déplacer sensiblement radialement relativement à la couronne 5. En effet, voir figure 2, le galet 6 est monté sur un axe 14 fixé sur un levier 19, ce levier 19 est disposé articulé sur un axe 15. Le levier 19 est tiré par un ressort 20 au moyen de l’axe 22 et ledit ressort est fixé sur le côté postérieur du fond 1 au moyen d’un axe 21. Le ressort 20 peut comprendre des moyens de réglage de sa tension, ces moyens ne sont pas représentés car ils sont à la portée de l’homme du métier. De plus la courroie 3 pourrait être tendue par un dispositif comportant un levier maintenu par un ressort, ces moyens de tension ne sont pas représentés car ils sont à la portée de l’homme de métier. The pulley 4 can have a smooth or knurled surface, but it can also have a groove into which the belt is inserted 3. The belt 3 is inserted. in the groove 18 of the crown 5, see figure 6B. The belt 3 driven by the pulley 4 drives the crown 5 in rotation. In addition, the belt 3 covers the turns of wire 11 (ftg 6B) arranged in the groove 18 by compressing them on the bottom of said groove. So that the belt 3 ensures good rotation of the crown 5, means are provided for tensioning said belt, these tensioning means are for example constituted by a roller 6 arranged freely in rotation on the axis 14 and supported by its peripheral surface on the inner surface of the ring 5. The roller 6 can move substantially radially relative to the ring 5. Indeed, see Figure 2, the roller 6 is mounted on a pin 14 fixed on a lever 19, this lever 19 is arranged articulated on an axis 15. The lever 19 is pulled by a spring 20 by means of the axis 22 and said spring is fixed on the rear side of the base 1 by means of a axis 21. The spring 20 may comprise means for adjusting its tension, these means are not shown because they are within the reach of those skilled in the art. In addition, the belt 3 could be tensioned by a device comprising a lever held by a spring, these tensioning means are not shown because they are within the reach of those skilled in the art.
Sur la figure 3 le dispositif représenté à la figure 1 est chargé d’un fil 11 , comportant à son extrémité une sonde 23, prêt à être introduit dans un tube 25 disposé dans une boîte 24 disposée dans un mur. Pour charger un fil dans le dispositif, il faut introduire le fil 11 dans le tube 10 fixé sur le fond 1 par la cale 16 et le pousser à l’intérieur de manière qu’il passe entre la cale de guidage 8 et la couronne 5 dans la rainure 18 (voir figure 6B). Le fil 11 poursuivra son chemin dans la rainure 18 maintenu au fond de cette dernière par la courroie 3. Ensuite le fil 11 fera un tour de la couronne 5 dans la gorge 18 et repassera sous la cale de guidage 8. La cale 8 a une largeur légèrement inférieure à la distance séparant les deux montants dudit U de manière qu’elle puisse être maintenue entre ces derniers en maintenant le fil 11 contre la couronne 5 augmentant son frottement sur cette dernière. Suivant le diamètre du fil 11 et la largeur de la rainure 18, le fil 11 fera plus d’un tour sur la couronne 5, puis il sortira par le tube 9 fixé sur le fond 1 par la cale17 et s’introduira dans le tube 25 par la sonde 23. Dans une autre forme d’exécution (voir figure 7). Il est prévu de supprimer le galet 6, la tension de la courroie 3 étant réalisée par la cale de guidage 8 montée sur des moyens élastiques et pouvant se déplacer contre la couronne 5. Les moyens élastiques assurant le déplacement de la cale 8 sont semblables à ceux décrits pour le galet 6 à la figure 2. La cale 8 a une largeur légèrement inférieure à la distance séparant les deux montants dudit U de manière qu’elle puisse être maintenue entre ces derniers en maintenant le fil 11 contre la couronne 5 augmentant son frottement sur cette dernière. La cale 8 présente des galets 28 s’appuyant contre le fil 11 pour faciliter le déplacement du fil 11. Les galets 28 sont montés sur des axes 26 dans la cale 8 (voir figure 7 et 8) et cette cale est fixée à l’axe 27, qui est fixé à un levier identique au levier 19, non représenté. Ainsi la cale 8 poussera la couronne 5 l’éloignant de la poulie 4 et tendra la courroie 3. In FIG. 3, the device shown in FIG. 1 is loaded with a wire 11, comprising at its end a probe 23, ready to be introduced into a tube 25 arranged in a box 24 arranged in a wall. To load a wire into the device, it is necessary to introduce the wire 11 into the tube 10 fixed on the bottom 1 by the wedge 16 and push it inside so that it passes between the guide wedge 8 and the ring 5 in the groove 18 (see figure 6B). The wire 11 will continue its way in the groove 18 held at the bottom of the latter by the belt 3. Then the wire 11 will go around the crown 5 in the groove 18 and will pass again under the guide wedge 8. The wedge 8 has a width slightly less than the distance separating the two uprights of said U so that it can be maintained between the latter by maintaining the wire 11 against the crown 5 increasing its friction on the latter. Depending on the diameter of the wire 11 and the width of the groove 18, the wire 11 will make more than one turn on the crown 5, then it will come out through the tube 9 fixed on the bottom 1 by the wedge 17 and will enter the tube 25 by probe 23. In another embodiment (see Figure 7). It is planned to eliminate the roller 6, the tension of the belt 3 being carried out by the guide wedge 8 mounted on elastic means and able to move against the crown 5. The elastic means ensuring the movement of the wedge 8 are similar to those described for the roller 6 in FIG. 2. The wedge 8 has a width slightly less than the distance separating the two uprights of said U so that it can be held between the latter while maintaining the wire 11 against the crown 5 increasing its friction on the latter. The wedge 8 has rollers 28 bearing against the wire 11 to facilitate the movement of the wire 11. The rollers 28 are mounted on pins 26 in the wedge 8 (see Figures 7 and 8) and this wedge is fixed to the pin 27, which is fixed to a lever identical to the lever 19, not shown. Thus the wedge 8 will push the crown 5 away from the pulley 4 and tension the belt 3.
Dans une troisième forme d’exécution représentée à la figure 9, avec un détail représenté à la figure 12. La forme d’exécution est proche de celle représentée à la figure 7, la différence principale étant que l’entrainement de couronne 5 est assuré par une chaîne 29. Comme on le voit à la figure 12 c’est la chaîne 29, qui assure le maintien sous pression du fil 11 dans la rainure en V 31 prévue dans le fond 18. In a third embodiment shown in Figure 9, with a detail shown in Figure 12. The embodiment is close to that shown in Figure 7, the main difference being that the drive of crown 5 is provided. by a chain 29. As can be seen in FIG. 12, it is the chain 29, which maintains the wire 11 under pressure in the V-shaped groove 31 provided in the base 18.
Dans une variante de la forme d’exécution représentée à la figure 9, avec un détail représenté à la figure 10, la chaîne est remplacée par une courroie crantée 3 comme dans la forme d’exécution représentée à la figure 1. Comme on le voit à la figure 10 c’est la courroie 3, qui assure le maintien sous pression du fil 11 dans la rainure 31 prévue dans le fond 18. In a variant of the embodiment shown in Figure 9, with a detail shown in Figure 10, the chain is replaced by a toothed belt 3 as in the embodiment shown in Figure 1. As can be seen in FIG. 10, it is the belt 3, which maintains the wire 11 under pressure in the groove 31 provided in the base 18.
Dans une dernière variante de la forme d’exécution représentée à la figure 9, avec un détail représenté à la figure 11 , la chaîne est remplacée par une courroie de section circulaire 30 est le fond du U n’est plus plat mais à la forme d’un V. Comme on le voit à la figure 10 c’est la courroie 30, qui assure le maintien sous pression du fil 11 dans le fond du V. L’invention permet d’obtenir un dispositif d’entrainement pour pousser ou tirer un fil sans abîmer sa surface périphérique, présentant une grande force de poussée ou de traction, car la force de frottement sur la couronne est assurée par la pression de la courroie sur le fiM 1. In a last variant of the embodiment shown in Figure 9, with a detail shown in Figure 11, the chain is replaced by a circular section belt 30 is the bottom of the U is no longer flat but in the shape of a V. As can be seen in FIG. 10, it is the belt 30, which keeps the wire 11 under pressure in the bottom of the V. The invention makes it possible to obtain a driving device for pushing or pulling a wire without damaging its peripheral surface, exhibiting a large pushing or pulling force, since the frictional force on the crown is provided by the pressure of the belt. on the fiM 1.

Claims

Revendications. Claims.
1. Dispositif d’entrainement pour pousser ou tirer un fil sans abîmer sa surface périphérique, comportant un boîtier (1) dans lequel est disposé une poulie (4) entraînée par un moteur (2), caractérisé en ce que dans le boîtier est aussi disposée une couronne (5) rotative présentant à sa circonférence une rainure (18, voir figures 6B, 10, 11, 12) en forme de U, comportant un fond plat ou en forme de V, dont l’ouverture est dirigée vers l’extérieur de la dite couronne, entraînée en rotation par des moyens (3, 30, 29), passant entre les deux branches dudit U, et maintenant une pression sur ledit fil dans ladite rainure (18), lesdits moyens étant entraînés en passant sur ladite poulie (4), et en ce que ledit boîtier comporte un tube d’entrée (10) et un tube de sortie (9), ces dits tubes étant prévus pour introduire ledit fil dans ladite rainure (18) autour de la couronne en l’obligeant à faire au moins un tour de cette dernière et à le faire ressortir de la dite rainure (18). 1. Drive device for pushing or pulling a wire without damaging its peripheral surface, comprising a housing (1) in which is disposed a pulley (4) driven by a motor (2), characterized in that in the housing is also arranged a rotating crown (5) having at its circumference a groove (18, see Figures 6B, 10, 11, 12) in the shape of a U, comprising a flat or V-shaped bottom, the opening of which is directed towards the exterior of said crown, driven in rotation by means (3, 30, 29), passing between the two branches of said U, and maintaining pressure on said wire in said groove (18), said means being driven while passing over said pulley (4), and in that said housing comprises an inlet tube (10) and an outlet tube (9), these said tubes being provided to introduce said wire into said groove (18) around the ring in L 'forcing to make at least one turn of the latter and to bring it out of said groove (18).
2. Dispositif selon la revendication 1, caractérisé en ce que les moyens sont une courroie plate ou crantée flexible (3) de largeur égale ou inférieure à la distance entre les branches dudit U et maintenant une pression sur ledit fil contre le fond plat de la rainure (fig 6B). 2. Device according to claim 1, characterized in that the means are a flexible flat or toothed belt (3) of width equal to or less than the distance between the branches of said U and maintaining pressure on said wire against the flat bottom of the groove (fig 6B).
3. Dispositif selon la revendication 1 , caractérisé en ce que les moyens sont une courroie plate ou crantée flexible (3) de largeur égale ou inférieure à la distance entre les branches dudit U et en ce que le fond dudit U est plat présentant en son milieu une rainure en forme de V dans lequel est le fil maintenu en pression par la courroie. 3. Device according to claim 1, characterized in that the means are a flexible flat or toothed belt (3) of width equal to or less than the distance between the branches of said U and in that the bottom of said U is flat having in its middle a V-shaped groove in which is the wire held in pressure by the belt.
4. Dispositif selon la revendication 1 , caractérisé en ce que les moyens sont une courroie de section circulaire (30, fig 10) de diamètre inférieure à la distance entre les branches dudit U et en ce que le fond dudit U est en forme de V dans lequel le fil est maintenu en pression par la courroie de section circulaire. 4. Device according to claim 1, characterized in that the means are a belt of circular section (30, fig 10) of diameter less than the distance between the branches of said U and in that the bottom of said U is V-shaped. in which the wire is held under pressure by the belt of circular section.
5. Dispositif selon la revendication 1 , caractérisé en ce que les moyens sont une chaîne (29, fig 12) et en ce que le fond dudit U est plat et présente en son milieu une rainure en forme de V dans laquelle le fil est maintenu en pression par la chaîne. 5. Device according to claim 1, characterized in that the means are a chain (29, fig 12) and in that the bottom of said U is flat and has in its middle a V-shaped groove in which the wire is held. under pressure by the chain.
6. Dispositif selon l’une des revendications 2 à 5, caractérisé en ce que dans le boîtier il est prévu des moyens pour tendre (6, 19, 20, 8) la courroie ou la chaîne et des moyens (7a et 7b) pour positionner la couronne. 6. Device according to one of claims 2 to 5, characterized in that in the housing there is provided means for tensioning (6, 19, 20, 8) the belt or chain and means (7a and 7b) for position the crown.
7. Dispositif selon la revendication 6, caractérisé en ce que les moyens pour tendre ladite courroie ou la chaîne sont constitués par un galet (6) s’appuyant par sa surface périphérique sur la surface intérieure de la couronne (5), ledit galet étant monté sur des moyens élastiques l’éloignant de la poulie (4) de manière à tendre la courroie. 7. Device according to claim 6, characterized in that the means for tensioning said belt or chain are constituted by a roller (6) resting by its peripheral surface on the inner surface of the ring (5), said roller being mounted on elastic means moving it away from the pulley (4) so as to tension the belt.
8. Dispositif selon la revendication 6, caractérisé en ce que les moyens pour tendre ladite courroie ou chaîne sont constitués par une cale de guidage (8) montée sur des moyens élastiques et cette cale étant de largeur inférieure à la distance séparant les deux branches dudit U de manière qu’elle puisse être maintenue entre ces dernières en maintenant le fil contre la couronne (5). 8. Device according to claim 6, characterized in that the means for tensioning said belt or chain are constituted by a guide wedge (8) mounted on elastic means and this wedge being of width less than the distance separating the two branches of said U so that it can be held between them while keeping the wire against the crown (5).
PCT/IB2020/000662 2019-09-04 2020-08-27 Drive device for pushing or pulling a wire without damaging the peripheral surface thereof WO2021044209A1 (en)

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CH01118/19 2019-09-04
CH01118/19A CH716560A2 (en) 2019-09-04 2019-09-04 Drive device for pushing or pulling a wire without damaging its peripheral surface.

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Publication number Priority date Publication date Assignee Title
US2556484A (en) 1948-12-09 1951-06-12 C M Penney Co Cable puller
FR1586534A (en) 1967-10-25 1970-02-20
US4413808A (en) 1980-05-12 1983-11-08 Finkle Louis J Portable power driven wire puller
EP0309216A1 (en) * 1987-09-25 1989-03-29 Plessey Overseas Limited Linear drive apparatus
WO1997031851A1 (en) * 1996-03-03 1997-09-04 Stefan Mayer Conveyor device
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GB2570654A (en) * 2018-01-31 2019-08-07 Generative Parametrics Ltd Filament drive apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115502959A (en) * 2022-11-17 2022-12-23 长沙优龙机器人有限公司 Tension line limiting device and flexible exoskeleton

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