| 摘要 |
An apparatus includes an unbalanced mass unit configured to be rockable between front and rear unbalanced positions by virtue of the moment of inertia, a coupling shaft which rotatably extends through an upper segment of the unbalanced mass unit and which is coupled with an electricity generator, and a releasably retaining member releasably retaining the unbalanced mass unit at the rear unbalanced position. In response to a downward mechanical load, the releasably retaining member releases the unbalanced mass unit to allow the unbalanced mass unit to commence rocking so as to permit the coupling shaft to generate a rotating torque for conversion into electricity by the electricity generator. |
