deflecting dimension 62 for example approximately 10 mm approximately 6 mm to 16 mm the u201c beaten thread receiving face 53 a u201d formed of the surface of the beaten thread receiving member 53 is provided hence the portion 43 a of the second thread element 43 being formed into a loop shape in the deflected u201c oversupply state u201d becomes a u201c state of clinging u201d to the u201c face u201d of the u201c beaten thread receiving face 53 a u201d and the loop portion is pulled up as the through hole 33 of the thread take up arm is raised abruptly without having a time of making an acute angle and forming twining furthermore at the positions on both sides of the receiving face 53 a and enclosing the front space 51 of the receiving face 53 a the jump preventing faces 54 a and 54 a are provided to make the beaten portion 43 a of the second thread element 43 come into contact with and cling to the u201c face u201d thereby preventing the second thread element 43 from jumping the depth dimension 61 of the thread passing groove and the width dimension 63 of the thread passing groove cannot be determined uniformly because the deflecting inertia of the thread 41 is different depending on the rotation speed of the spindle the lowering speed of the thread take up arm the kind.