Patent ID: 7296664

Claim:
A rotary damper comprising: a rotary shaft; a damper body mounted on the rotary shaft, the damper body comprising: a bottomed, cylindrical outer case, which has an opening at one end thereof on an opposite side to which the rotary shaft extends and having a retaining portion on the opening at the one end; and a bottomed, cylindrical inner case, which has an opening at one end thereof, wherein the inner case is rotatably arranged in the outer case and a bottom surface thereof is retained by the retaining portion of the outer case; a cam mechanism provided in the damper body to set a rotation pattern of the rotary shaft; a restoring force-accumulating member that accumulates a restoring force in accordance with rotation of the rotary shaft; and a rotation control member for controlling the rotation of the rotary shaft, wherein said rotation control member is interposed between an inner periphery surface of said outer case and an outer periphery surface of said inner case, wherein said restoring force-accumulating member is provided around the rotary shaft in the damper body, wherein said cam mechanism extends from said outer case to said inner case, and wherein said cam mechanism is disposed radially and side-by-side relative to the rotary shaft and the restoring force-accumulating member in the damper body.