Manufacturing method of laminated spring type one-way torque hinge and laminated spring type one-way torque hinge

摘要

PROBLEM TO BE SOLVED: To provide a one-way torque hinge whose radial dimension can be easily reduced. A torque hinge 8 includes a connecting shaft 20 that rotatably connects a first member and a second member, three or more leaf springs 26 that are laminated and press-fitted into the connecting shaft 20, and a second. A rotation blocking member 22 fixed to either one of the first member or the second member to prevent the rotation of at least a part of the leaf spring 26, and fixed to the other of the first member or the second member. It also has a one-way clutch 30 fitted to the connecting shaft 20. The leaf spring 26 and the one-way clutch 30 are arranged along the axial direction. When the second member rotates in a predetermined direction with respect to the first member, the relative rotation between the connecting shaft 20 and the one-way clutch 30 is prevented, so that the connecting shaft 20 and the leaf spring 26 are relative to each other. Rotation occurs, and resistance torque due to the frictional force between the connecting shaft 20 and the leaf spring 26 is applied to the second member. [Selection diagram] Fig. 5