US Patent 7390985 Force feedback input device

Disclosed is a force feedback input device including a cylindrical operating member having an open bottom. A support member that is rotatable supports a central portion of an inner surface of the operating member, and a motor which is held by the support member. A rotary shaft of the motor is arranged to be perpendicular to a central axis of rotation of the operating member. A great portion of the motor is housed in the operating member. A pinion that is fixed to the rotary shaft of the motor meshes with a ring-shaped gear that is provided at a part shifted from the central axis of rotation of the operating member.