Patent ID: 7627990
Filing Date: 2009-12-08
Classification: E05F,E05Y

Abstract:
1. A wire winding apparatus that opens and closes a single door with two wires, a first wire of which is wound and the second wire of which is simultaneously released by driving a winding actuator, the wire winding apparatus comprising: a drive gear that is disposed in a main body of the wire winding apparatus, in such a manner that the drive gear rotates in an arbitrary direction driven by the winding actuator, wherein the winding actuator is a motor that includes an output shaft and a worm gear on the output shaft, and the drive gear includes a single worm wheel that engages with the worm gear; and a pair of wire drums that is disposed on both sides of a support shaft of the worm wheel of the drive gear, respectively, such that a rotation of the drive gear is transmitted to each of the wire drums, wherein the pair of wire drums have spiral winding grooves which are spiraled in an opposite direction to one another, and are configured to separately load the first wire and the second wire.