| 摘要 |
The system has a guidance device (9) that cooperates with a locking bar (5) of an opening frame (4) in a window of a building. The guidance device is located in a window frame (3). The guidance device includes an axle (10) mounted, in a rotating manner, in the frame. The axle has end caps (11, 12) which are accessible from outside as well as from inside the window. |
