A furler device for stayed sails and the like comprises a torsionally rigid guide extending predominantly axially, a first swivel, slidable on the guide, having a first part fixed rotationally to the guide and a second part which is freely movable with respect to the first part, a stay which supports the guide, a furler with a rotating part designed to rotate the guide about its own axis in order to furl a sail hoist between the rotating part of the furler and the first part of the swivel, around the stay; the guide extends only over a portion of the stay, at the opposite end to the furler, and the stay is torsionally rigid and fixed rotationally to the rotating part and to the guide, so as to form a torque transmission member between the rotating part of the furler and the first part of the swivel when the swivel is engaged along the guide.