Power generating apparatus and power generating method

A power generation method employed by a power generation device that comprises a plurality of piezoelectric elements that are arranged upon the inner wall surface of a cylindrical outer frame member;

• a rotating shaft member that rotates around the central axis of said outer frame member as a rotational axis;
• a pressure transmission member provided over said plurality of piezoelectric elements and shaped as a cylinder having a central axis that is parallel to the central axis of said outer frame member;
• and a pressure member whose one end portion is fixed to said rotating shaft member and whose other end portion, along with shifting over said pressure transmission member along with the rotation of said rotating shaft member, also presses upon said pressure transmission member due to centrifugal force originating in said rotation, comprising:
• a rotation process of rotating said rotating shaft member;
• and
• a pressing process of, while due to the rotation of said rotating shaft member said other end portion of said pressure member is shifted over said pressure transmission member along its circumferential direction, employing centrifugal force generated due to said rotation to press upon said pressure transmission member with said other end portion of said pressure member, wherein
• said pressure member comprises:
• a first bar shaped member that includes said one end portion, and that extends towards said pressure transmission member;
• a second bar shaped member that is connected to the end portion of said first bar shaped member on said pressure transmission member side, so as to be shiftable in the direction to approach said pressure transmission member and in the opposite direction;
• and
• a contact member that is connected to the end portion of said second bar shaped member at the opposite side thereof to the side of said first bar shaped member, and that includes said other end portion.