HINGE DEVICE

摘要

Provided is a hinge device that is not long in an axial direction, configured with fewer parts and a simple structure, and capable of stabilizing friction torque. The hinge device of the present invention comprises a cam member (5), friction members (3, 4) inserted into the cam member (5) in order for both side surfaces (5a, 5b) of the cam member (5) to face friction surfaces (3a, 4a), and a biasing means (6) for biasing in a direction in which the cam member (5) and the friction members (3, 4) come into contact with each other. A convex portion (55) and concave portions (35, 45), fitting with each other, are disposed at both side surfaces (5a, 5b) of the cam member (5) and counterface surfaces of the friction members (3, 4). The cam member (5) is inclined so that edges (56a, 56b) of opposite sides of the concave portions (35, 45) or the convex portion (55) come into contact with the friction surfaces of the friction members (3, 4) when the convex portion (55) and the concave portions (35, 45) do not fit with each other.