| 摘要 |
Window for insertion in a wall of sandwich-type and comprising a first frame, which is adapted to abut against the outer face of the wall, a frame member provided with a rebate for a window pane, which member is integral with the first frame and adapted to cover the core of the sandwich wall, and a second frame with a flange adapted to abut against the inner face of the wall, in which window one of the frames comprises toothed connection means, consisting of tongues provided with a toothing and arranged in the longitudinal direction of the frame, which tongues are adapted to be inserted between two toothed walls on the other frame, the insertion of the window comprising clipsing together the two frames from each side of the sandwich wall. In order to make it possible to manufacture the window frames as single pieces by injection molding and at the same time to obtain a strong resistance to burglary the tongues are divided into a number of spaced tongues on the second frame, the connection means on the first frame comprising correspondingly spaced pockets, and the toothing is arranged on the narrow sides of the tongues to cooperate with a toothing arranged on ribs on the frame member running perpendicular to the frame member. |
