Patent ID: 7874045

Claim:
A hinge device for connecting one member and another member so that the hinge device allows opening and closing, the hinge device comprising: a movable shaft; a first bracket non-rotatably fixed to the movable shaft and fixed to the one member; a second bracket rotatably and axially movably installed on the movable shaft and fixed to the another member; a presser washer; and a plate spring member formed in a curved configuration, said plate spring member having a projection at a top of the curved configuration of the plate spring member, said projection having a flat surface in contact with the second bracket, and said plate spring member being non-rotatably and axially movably installed on the movable shaft, said second bracket and said plate spring member being pressed against and held in contact with each other via said presser washer and said plate spring member being rotatable relative to said second bracket via rotation of said movable shaft.