| 摘要 |
The stutter has two shutter parts (3, 4) pivotally connected with each other at a longitudinal side, where the longitudinal side of one of the shutter parts is rotatably mounted at top and bottom regions. The other shutter part stays in operative connection with a forcible guiding unit (10), and comprises a worm gear and a converting unit for converting a rotational movement into a longitudinal movement of a window (2). The guiding unit includes a U-shaped profile piece having a shorter leg and a longer leg, which forms a stop. A guiding pipe is arranged at a base surface of the profile piece. |
