| 摘要 |
PURPOSE:To widely open an opening without damaging the packing of a window frame, etc., by separating a closing frame from a fixed frame in the vertical direction and then moving it horizontally to open the opening, or closing the opening by the reverse process. CONSTITUTION:Two feed screws 4 are rotated by normal rotation of a motor, so that four sliders 13 slide in the direction of the arrow (B) within a housing 10. A link 21 is rotated accordingly and also a bracket 23 is raised and raises an opening frame 2 in the direction perpendicular to a glass plate so that the frame 2 is separated from a fixed frame 1. The housing 10, the link 21 and the bracket 23 are then caused to shift in the direction (B) and also a guide roller 25 makes a rolling movement and horizontally shifts the opening frame 2 to open the opening. After the opening frame 2 is shifted in the direction of the arrow (C) by reverse rotation of the motor, the opening frame 2 is made to fall vertically in the direction of the arrow (D) and is mounted to the fixed frame 1 to close the opening. |
