Power generation device and portable electric device

An electric power generating device, comprising:

• a plurality of electret electrodes each made of an electret material and formed into a planar shape, and arranged in a circular shape at intervals in a first plane;
• a plurality of counter electrodes arranged in a circular shape in a second plane facing the first plane so as to face the plurality of electret electrodes;
• an oscillating weight supported in a rotatable manner;
• and
• a motive power transmission mechanism configured to transmit motive power generated by rotations of the oscillating weight to a rotating first electrode group comprising any one of the plurality of electret electrodes and the plurality of counter electrodes, to thereby rotate the rotating electrode group so that the rotating electrode group is moved relative to a second electrode group from among the plurality of electret electrodes and the plurality of the counter electrode,
• the motive power transmission mechanism comprising a first clutch mechanism configured to transmit only a rotation of the oscillating weight in one predetermined direction,
• the first clutch mechanism comprising a rotating substrate,
• the electret electrodes are formed on the rotating substrate.

A portable electric power generating device, comprising:

• a plurality of electret electrodes each made of an electret material and formed into a planar shape, and arranged in a circular shape at intervals in a first plane;
• a plurality of counter electrodes arranged in a circular shape in a second plane facing the first plane so as to face the plurality of electret electrodes;
• an oscillating weight supported in a rotatable manner;
• and
• a motive power transmission mechanism configured to transmit motive power generated by rotations of the oscillating weight to a rotating first electrode group comprising any one of the plurality of electret electrodes and the plurality of counter electrodes, to thereby rotate the rotating electrode group so that the rotating electrode group is moved relative to a second electrode group from among the plurality of electret electrodes and the plurality of the counter electrode,
• the motive power transmission mechanism comprising a first clutch mechanism configured to transmit only a rotation of the oscillating weight in one predetermined direction,
• a load configured to be operated by consuming electric power generated by the electric power generating device,
• the oscillating weight being configured to be rotationally moved in conjunction with movement of the portable electric power generating device itself,
• an operating member configured to receive a manual rotation operation by a user,
• an operative motive power transmission mechanism configured to transmit, to the rotating electrode group, motive power generated by the manual rotation operation received via the operating member,
• the operative motive power transmission mechanism comprising a first gear and a second gear,
• the first gear configured to transmit, to the rotating electrode group, motive power generated by the manual rotation operation in a first direction received via the operating member,
• the second gear configured to transmit, to the rotating electrode group, motive power generated by the manual rotation operation in a second direction opposite to the first direction received via the operating member.