Patent ID: 8241017

Claim:
A ceiling fan comprising: a motor that rotates a plurality of blades horizontally disposed; and a suspension mechanism for suspending the motor from a ceiling; wherein the motor includes a disc-like stator, a hollow shaft disposed upright on a center of the disc-like stator so as to protrude upward from the motor, a rotor around an outer periphery of the stator, the rotor being integrally rotated with the blades attached to the rotor; a cylindrical bearing housing provided over the stator, a rotor support integrally connecting the bearing housing and the rotor, a pair of ball bearings, including an upper ball bearing and a lower ball bearing housed in the bearing housing and rotatably supporting the rotor, and a safety switch that opens and closes a supply of electricity to the stator, wherein the bearing housing includes a base in its center, the upper ball bearing is disposed over the base via an elastic member, the lower ball bearing is disposed under the base, and the upper ball bearing and the lower ball bearing are fixed onto the hollow shaft; and wherein the suspension mechanism includes a pipe connected to the hollow shaft for suspending the motor from the ceiling, a connecting bolt for connecting the hollow shaft and the pipe, and an operation lever for opening and closing the safety switch, the operation lever being moved in response to a relative turn of the hollow shaft and the pipe so as to open a contact of the safety switch.