| 摘要 |
The blade (2) is fixed to a door or window frame (1) by screws (3), and its adjustment in the horizontal plane is made possible by two screws (5) accessible via aligned holes (2c) in it. The adjustment screws have a rear head part with a larger dia. than the holes. This head part engages against the rear side of the blade. A tracked front head part of each screw has a smaller dia. than the hole in which it is accommodated. |
