Treuil. La presente invention a pour objet un treuil destine notamment ä tcertains travaux agricoles. Ce treuil est. caracterise en ce que 1e tambour sur lequel s'enroule son organe souple tirant un objet, outil, etc. est monte rotativement sur un ehässis qui est mobile sur un support fixe portant los tourillous dune poulie sur laquelle passe 1'argane souple et en ce quo les guides du mouvement dudit Chas sis mobile sont tels qu'ils imposent ä ce der- nier des mouvements permettant quo 1e point de tangence de 1'organe souple et du tambour reste constamment au voisinage du plan me- dian de ladite poulie, la traetion de 1'organe souple determinant los Uplacements dudit chässis, dans 1e but quo 1'effort exerce par 1'organe souple sur 1e support et sur 1'objet tire ait une direction invariable au cours de 1'enroulement de 1'organe souple. Winch. The subject of the present invention is a winch intended in particular for certain agricultural work. This winch is. characterized in that the first drum on which is wound its flexible member pulling an object, tool, etc. is rotatably mounted on a frame which is mobile on a fixed support carrying the trunnions of a pulley over which the flexible argan passes and in that the movement guides of the said mobile frame are such that they impose movements on the latter. allowing the point of tangency of the flexible member and the drum to remain constantly in the vicinity of the median plane of the said pulley, the traetion of the flexible member determining the displacements of the said frame, with the aim that the force exerted by the the flexible member on the first support and on the object pulls has an invariable direction during the winding of the flexible member.
Le dessin ei-annexe represente, ä titre d'exemple, une forme.d'exkution de 1'objet de 1'invention. La fig. 1 en est une vue de face et la fig. 2 une vue en plan; La fig. 3 est une coupe suivant III-III de la fig. 2 et la fig. 4 montre une Partie fixe de 1'appareil en plan. The attached drawing represents, by way of example, one embodiment of the object of the invention. fig. 1 is a front view and FIG. 2 a plan view; fig. 3 is a section along III-III of FIG. 2 and fig. 4 shows a fixed part of the apparatus in plan.
Un support 1 est eonstitue par un tube formant cadre et uruni de traverses la, 1b et dune Barre 1e reliant ces traverses pour sup- porter des Plaques 1d destinees ä servir de palier pour une poulie 6. Ce support 1 est uruni de bäches 2, au nombre de quatre, ainsi quo Tune pike 4 formant un chemin de rou- lement en arc de cerele. Le support 1 presente en outre en 5 les moyens de pivotement d'un thässis 7 uruni ä sa Partie anUrieure de ga- lets 8 qui reposent sur 1e ühemin de roule- m@ent 4. Co chässis mobile 7 Porte 1e tambour 12 monte sur des paliers 7ca et un moteur 9 qui peut, par egemple, etre un moteur ä exp.losions adaptable ä Taufres appareils agricoles. <B>Co</B> moteur transmet son mouvement au tambour 12 par 1'intermediaire d'un pignon 10 engre- nant avec une raue 11 solidaire du tambour 12. Un cäble souple 13 est attache, dune Part, au tambour 12, sur lequel il s'enroule lorsque 1e moteur est en marche et, d'autre pari, ä un objet soumis @ä la resistance qü'il s'agit de vain.cre. Cet objet est, par exemple, une charrue destinee ä labourer la terre entre les rangees de ceps dans une eigne. L'espace .compris entre cm rangees Atant tres etroit, il importe que 1e cäble 13 exerce sa traction sur 1a eharrue suivant une direction invariable lors meme que 1e tambour .d'enroulement a ne- emsairernent une longueur qui es.t une fraetion importante de la largeurdisponible entre les .ceps. C'est pourquoi 1e cäble 13 passe :sur la poulie 6 avant de s'enrouler sur 1e tambour 12. 0n .comprend que gräce ä la mobilite du :chässis 7, la traetion du :cäble, en tendant tau jours ä ce que 1a Partie de celui-ei qui relie la paulie au tambour soit toujours nussi .courte que possible, determine des deplaoements du chäassis tels que 1e point de tangence du cä- ble et du tambour reste eanstamment au voi- sinage,du plan median,de la poulie 6 au cours de 1'enroulement .du cäble sur 1e tambour. Il s@ensuit .que non seulement Feffort exerce par le,cäble sur la eharrue a une direotion cons- tante, mais aussi la reaction du support. Ce dernier point est aussi avantageux, .car il em- p6che que les beches 2 engagees Jans 1e sol ne s'ebranlent par suite de tractions obliques. A support 1 is constituted by a tube forming a frame and is fitted with crosspieces 1a, 1b and a bar 1e connecting these crosspieces to support Plates 1d intended to serve as a bearing for a pulley 6. This support 1 is fitted with sheets 2, four in number, as well as Tune pike 4 forming a circular arc raceway. The support 1 further has at 5 the means for pivoting a frame 7 united at its anterior part with rollers 8 which rest on the rolling path 4. Mobile frame 7 carries the drum 12 mounted on bearings 7ca and a motor 9 which can, for example, be an explosion motor adaptable to your agricultural implements. The motor <B>Co</B> transmits its movement to the drum 12 through the intermediary of a pinion 10 meshing with a wheel 11 integral with the drum 12. A flexible cable 13 is attached, on the one hand, to the drum 12, on which it is wound when the engine is running and, on the other hand, to an object subjected to the resistance that it is about.cre. This object is, for example, a plow intended to plow the earth between the rows of vines in a row. The space between cm rows Being very narrow, it is important that the first cable 13 exerts its traction on the plow in an invariable direction even when the first winding drum has not included a length which is a significant fraction. of the available width between the .ceps. This is why the first cable 13 passes: over the pulley 6 before winding on the first drum 12. It is understood that thanks to the mobility of the: frame 7, the traetion of: the cable, Part of it which connects the shoulder to the drum is always as short as possible, determines displacements of the frame such that the point of tangency of the cable and the drum remains constantly in the vicinity, of the median plane, of the pulley 6 during winding of the cable on the drum. It follows that not only the force exerted by the cable on the plow has a constant direction, but also the reaction of the support. This last point is also advantageous, because it prevents the spades 2 engaged in the ground from shaking as a result of oblique traction.
0n congoit que le,chässis mobile pourrait ,coulisser parallelement ä Faxe de la poulie 6 au lieu de tourner et Von remarque que faxe 5 est situe sur 1e prolongement du plan me- dian de la poulie 6 et ä Poppose de la char- rue et que oet axe.est approximativement per- pendiculaire ä la .direction qu'a 1e eäble entre 1e treuil et la charrue non representee. De meme, les facm des beches sont paralleles ä Faxe :de la poulie mentionnee, de maniere que la direetion de 1'effort resistant du terrain ä leur deplacement soit parallele ä 1a direo- tion de la traction :du cäble. It is recognized that the mobile frame could slide parallel to the axis of the pulley 6 instead of rotating and it is noted that the axis 5 is located on the extension of the median plane of the pulley 6 and opposite the plow and that this axis is approximately perpendicular to the direction of the cable between the winch and the plow, not shown. Likewise, the sides of the spades are parallel to the direction of the mentioned pulley, so that the direction of the resisting force of the ground to their displacement is parallel to the direction of the traction of the cable.
Le support pourrait cepen.dant etre verti- cal au lieu d'etre horizontal ou incline et Ure fixe :de toute autre :maniere que par .des bkhes s'il s'agissait de 1'4levation verticale de far- deaux. La Partie du,cäble qui se trouve entre la poulie 6 et 1e tambour est pratiquement per pendiculaire au plan dans lequel se meut Faxe,du tambour. The support could, however, be vertical instead of horizontal or inclined and fixed in any other way than by bkhes if it was a matter of vertical lifting of burdens. The portion of the cable which lies between the pulley 6 and the drum is substantially perpendicular to the plane in which the drum moves.
Le soele l Porte des roum 3 montees sur des prolo.rigements. Je, roues qui servent au transport du treuil ä la maniere dune brouette. The soele l Door of the roum 3 mounted on extensions. I, wheels used to transport the winch like a wheelbarrow.