| 摘要 |
The invention relates to a smoke outlet window and its opening and closing mechanism. The smoke outlet window is arranged to open with respect to its vertical axis, so that each window element (10a, 10b) is attached, at the top and bottom sash, to the window frame by means of axle stubs (11a, 11b). Advantageously the axle stubs (11a, 11b) are arranged in an intermeshed fashion, so that the window unit can be opened completely. The opening and closing mechanism is based on a process where the power generated by a manually operated actuator, such as a hand crank (18), is transmitted to the lever arms (12, 14, 15) for example by means of a wire rope (31) and a slide (17), said lever arms (12, 14, 15) being arranged to move so that the window can be opened and closed. The movements of the window elements (10a, 10b) can be synchronized for instance by interconnecting said window elements (10a, 10b) by means of a rod (19). <IMAGE> |
