Patent ID: 6230784
Filing Date: 2001-05-15
Classification: B64C

Abstract:
A window for a vehicle having an electrical system, the window having a shade with a shade rail movable between an open and closed position, the shade attached to the shade rail, the shade rail driven by a cord, the cord having a first end and a second end, the cord tied into the shade rail between the two ends, the window comprising:an electric motor, the electric motor having a drive shaft attached thereto;an elongated cord-receiving spool with the first and the second ends of the cord attached thereto;means cooperating with the drive shaft for engaging the elongated cord-receiving spool such that the spool is capable of moving longitudinally with respect to the drive shaft when the electric motor is energized;and wherein such longitudinal movement allows the cord to be taken up on the spool without bunching up when the electric motor is energized;wherein means cooperating with the drive shaft comprise a threaded spool slideably mounted over the drive shaft and a rifled drive block for receiving the threaded spool therein, wherein energizing the motor causes the drive shaft to rotate and the threaded spool to move longitudinally as threads of the threaded spool interfere with the rifled drive block to move the threaded spool longitudinally while the first end of the cord is taken up in the grooves between the threads of threaded spool and the second end unwinds from the threads of the threaded spool.