| 摘要 |
PURPOSE: A louver is provided to accurately control the opening and closing operation of a louver by stably and accurately delivering a driving force for the opening and closing operation. CONSTITUTION: A louver comprises a frame (50), a flat board (20), a pinion gear (60), a rack gear (70), and a driving part (80). Two or more flat boards are rotatably mounted on the frame. The pinion gear is fixed to the flat board and is rotatably mounted on the frame. The rack gear is slidably combined in the frame and is joined to the pinion gear. The driving part slides the rack gear. |
