| 摘要 |
<p>A device capable of causing a plurality of wings (2) to open and close through combined swinging and sliding movements thereof, these wings (2) being adjacent to, and superposable upon one another, the device comprising two gear wheels (4) in constant mesh with one another, each gear wheel (4) having an arm (5) fixed thereto which carries at its free end at least one roller (6) arranged to be slidable in a respective guide (7) fastened to a corresponding wing (2), the gear wheels (4) being rotatably supported on a body (9) which is in turn slidably supported in a horizontal guide and secured by means of hinges (12) to pairs of adjacent wings (2). <IMAGE></p> |
