| 摘要 |
The present invention relates to a louver system including a guide rail elongated in a height direction; a plurality of slat driving unit having a housing slidably engaged to the guide rail, a rotary shaft engaged to the rotation center of a slat which is connected to the housing to be able to freely rotate in a first direction, and having a threaded portion on a lower portion, a worm gear formed on the rotary shaft in the housing, a worm connected to the housing to be able to freely rotate in a second direction perpendicular of the first direction, a nut engaged to the housing in the second direction, a spring washer fitted to the rotary shaft, and a fastening adjusting nut threadedly engaged to the threaded portion of the rotary shaft to come into frictional contact with the housing; a straight driving force transmitting unit placed on the guide rail and receiving the rotational force of a first motor; a lead screw disposed in the guide rail and extending in the height direction to be engaged to the nut through the slat driving units, the lead screw being connected to the straight driving force transmitting unit to receive the rotational force of the first motor; a rotational force transmitting unit disposed on the guide rail to receive the rotational force of a second motor; and a slat rotating rod spaced apart from the lead screw side by side in the guide rail and engaged to each worm of the slat driving units, the slat rotating rod being connected to the straight driving force transmitting unit to rotate by the rotational force of the second motor. |
