The present invention pertains to a line hauler. The object of the present invention is to provide a line hauler, wherein an opening in the center of a first side surface that is adjacent to a supporting die is blocked by a roller pin, and a first rotation shaft penetrates the inside of an auxiliary roller via the inside of the roller pin. To this end, the present invention comprises: two auxiliary rollers, a small pulling roller, an auxiliary pulling roller and a large pulling roller for winding a fishing line two first shafts, a third shaft, a fourth shaft and a fifth shaft for respectively rotating the two auxiliary rollers, the small pulling roller, the auxiliary pulling roller and the large pulling roller and a supporting die for supporting the two first shafts, the third shaft, the fourth shaft and the fifth shaft.Any one of the two auxiliary rollers includes: a housing having an internal space formed in a cylindrical shape a bearing mounted to the internal space for making the rotation of the housing smooth a rubber packing mounted to the outside of the bearing and a roller pin covering the outside of the rubber packing that is adjacent to the supporting die. The roller pin includes: a roller pin plate formed in the shape of a circular disc for covering the outside of the rubber packing and a roller pin shaft protruded in the shape of a cylinder from the center portion of the roller pin plate, and penetrates the rubber packing so as to be inserted to the internal space. The roller pin plate has a roller pin role, which is formed on the surface opposite to the surface from which the roller pin shaft is protruded. The roller pin hole penetrates the inside of the roller pin shaft and is inserted by the first shaft.La présente invention se rapporte à un mécanisme de traction de ligne. Le but de la présente invention est de proposer un mécanisme de traction de ligne, une ouverture au centre dune première surface de côté qui est adjacente à une matrice de support,
