Patent ID: 8292585

Claim:
A fan device having simultaneously foldable blades comprising: a rotatable driving unit, a plurality of supporting frames extending outwardly from the driving unit, each supporting frame having a pivot mounted on one end thereof and extending upwardly therefrom; a plurality of shells respectively rotatably mounted on the supporting frames, each shell having a center hole defined therein for receivably engaging with the pivot of the corresponding supporting frame; a plurality of blades respectively disposed on the shells, each blade having an assembling portion disposed on one end thereof for assembling with a corresponding shell, each assembling portion having a through hole defined therein for receivably engaging with a corresponding pivot such that the blade is pivotally rotatable relative to the supporting frame; and a plurality of coupling rods respectively positioned between every two adjacent shells, each coupling rod having two ends respectively pivotally connected to the two corresponding adjacent shells; wherein when the driving unit rotates, the supporting frames synchronously rotated with the driving unit and driving the shells to simultaneously rotate, the shells rotatably driving the coupling rods to be pivotally moved relative to the supporting frames for simultaneously driving the blades to retractably fold/unfold.