| 摘要 |
<p>The device (1) has control levers (8, 9) rotatably connected with raising levers (4, 5) of two Y-shaped stay arms (2, 3). A frame-side end of both the raising levers is linearly movable and rotatably mounted on a frame-side guide rail (6) i.e. C-rail. The frame-side end is connected with a rigid connecting element (7) i.e. flat bar, through the frame-side guide rail. A leaf-side end of both the raising levers is rotatably connected with a leaf of a window or a door through bearing blocks (10, 11), which are rotatably connected to the leaf.</p> |
