| 摘要 |
The present invention relates to a portable self-power generating device that can generate electric power by converting an external force alternately applied in a forward and reverse direction into a unidirectional force, and can generate electric power by winding a wire around a pulley axially connected to a drive shaft and applying, by a user, the external force to the wire with his/her hands to rotate the pulley in a forward and reverse direction, thereby improving power generation efficiency. The portable self-power generating device of the present invention includes: the drive shaft alternately rotating in a forward and reverse direction by an external force; a forward power transmission part for transmitting only the forward rotating force of the drive shaft to a power generating shaft; a reverse power transmission part for transmitting only the reverse rotating force of the drive shaft to the power generating shaft; and a power generator for generating electric power by using a unidirectional rotating force of the power generating shaft. |
