ELECTRIC CURTAIN

PROBLEM TO BE SOLVED: To open and close curtain electrically when opening and closing it and to assist electrically the opening and closing operation also when opening and closing it manually. SOLUTION: The curtain has a structure that a curtain rail 2 having plural cavities 2b to store the code guide for the connecting member 11 and the leading runner 8 slidably on the upper part and the rail 2c supporting the rollers 13 and 16 for the leading runner 8 and middle runner 9 rollably on the lower part, pulley cases 4 and 5 connected to the both sides of the curtain rail 2 to support the pulleys 6 and 7 pivotally inside, a driving mechanism 20 fixed on the pulley case 4 to drive the pulleys 6 and 7 and a wire 11 engagingly attached on the leading runner 8 and wounded between the pulley 6 and 7 are provided. In the driving mechanism 20, an assisting control circuit B to assist opening and closing operation when opening and closing the curtain manually is provided. COPYRIGHT: (C)2007,JPO&INPIT