Patent ID: 6761540
Filing Date: 2004-07-13
Classification: F04D,F21V,Y10T

Abstract:
A suspension device for a ceiling fan, comprising:a bracket adapted to be mounted on the ceiling and including a through hole centrally defined in the bracket and having a cone-shaped periphery, a passage defined in the bracket and laterally communicates with through hole in the bracket, two threaded holes are defined in the bracket and correspond to each other, each threaded hole having a bolts inwardly screwed and extending through the bracket; a bearing seat engaged in the through hole in the bracket, the bearing seat being an inverted semi-spheroid and having a radius greater than that of the through hole in the bracket, the bearing seat having two recesses defined to receive a free end of a corresponding one of the two bolts to prevent the bearing seat from rotating relative to the bracket, a first central hole longitudinally defined in the bearing seat and extending through the bearing seat, a first slot and a second slot respectively defined in an inner periphery of the first central hole, the first slot and the second slot being parallel to each other, a first indention and a second indention respectively defined in a top portion of the bearing seat; a cover mounted to the top portion of the bearing seat, the cover including a first channel and a second channel defined in a bottom of the cover, the first channel communicating with the first slot and the first indention, the second channel communicating with the second slot and the second indention, a second central hole defined in the cover and extending to communicate with the first channel, the second channel and the first central hole, the cover including two electrode plates inserted into a top portion of the cover and partially extending into the second central hole; an end cap attached to the top portion of the cover to hold the two electrode plates in place, two electrode cords each having a first end electrically connected to a corresponding one of the two electrode plates and a second end adapted to be electrically connected to a power source on the ceiling; and a connecting bar including a hollow shaft having a first end rotatably and movably received in the first central hole and a second end adapted to be securely connected to a motor of the ceiling fan, a lining mounted on the first end of the hollow shaft, a connector upwardly extending from the lining and two electrode poles diametrically located in an upper portion of the connector and each selectively electrically abuts a corresponding one of the two electrode plates, the connecting bar including a pin extending through the hollow shaft, the lining and the connector to hold the lining and the connector in place, the pin having a first end and a second end respectively extend out of the hollow shaft, the first end of the pin moved in the first slot and the first channel and selectively received in the first indention, the second end of the pin moved in the second slot and the second channel and selectively received in the second indention.