| 摘要 |
PURPOSE: An ascent and descent apparatus of a window is provided to reduce the manufacturing cost by simplifying a structure of a driving device which ascent and descent a window and to improve productivity by assembling and installing simply. CONSTITUTION: The ascent and descent apparatus of a window comprises: a main body attached to the inside of an opening of a wall and divided into a window frame and a lower frame; a pair of primary and secondary motors attached to the inner and lower parts of the lower frame and provided with primary, secondary, third and fourth bevel gears(51,61,62); a pair of primary and secondary reciprocating bars(71,72) installed to the lower side of the window frame, fixed to the secondary and fourth bevel gears(62) and provided with screw threads; a pair of primary and secondary reciprocating frames screwed on the primary and secondary reciprocating bars(71,72) and arranged with primary and secondary windows(83,84); and a controller connected to the primary and secondary motors electrically. |
