| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of parts and the manufacturing cost, and smoothly turn movable slats. SOLUTION: In the movable louver to turn a plurality of movable slats 1 pivotably supported by a frame 5 and a working member 7 comprises a bearing 9 fitted through the frame and the working member 7 and a screw 13 which is pierced from the frame and the working member side and screwed with the movable slats 1, the movable slats 1 are turnably connected to the frame 5 and the working member 7 by the screw 13, a turning shaft of the movable slats 1 is constituted, and at least three projection-like ribs 15 brought into slidable contact with the frame 5 and the working member 7 are formed on an outer circumferential surface 11 of the bearing 9.
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