Tilting window casement or door wing extending arm

摘要

The extension mechanism, for a tiltable wing or casement on a door or window, has an arm turning and sliding on the wing. At its wing-side end, the arm (1) is connected with a sliding piece (21) via a lug and hole.An adjustable securing element (24), fitted on the sliding piece, overlaps the arm end (20) in its securing position. The sliding piece is displaceable lengthways on the upper side of the top wing cross-spar. The securing element may be rotatably mounted on the sliding piece and held releasably but with twisting