| 摘要 |
<p>A guide bolt, protruding at the top wing edge, is fastened to an extending arm hinged to the blind frame, to engage behind a guide rail, through a slit, fixed to the top wing edge. The mechanism is used for setting tilting door or window wings in position. The guide bolt (12) is led in the guiding slit (16) with no room for tilt movement play. Its attachment to the arm (10) permits tilting and swivelling movement. It may have a ring collar (18), and an annular ledge (20) which axially fixes it. This enables the bolt and arm to be set at a mutual angle, without affecting guidance of the bolt in the rail.</p> |
