| 摘要 |
A power-operated latch is integrated to a casement window for selectively locking and unlocking a vertically hinged window sash. The power-operated latch is adapted to be concealed in the window frame and is directly connectable to the existing window latch hardware. A reversible rotary motor drives a lead screw on which a slider is threadably engaged for pivoting a lever connected to a longitudinally movable latch bar. |
