INWARDLY DEMOUNTABLE SOUNDPROOF SASH WINDOW HAVING SASH PULL-IN TIGHTENING DEVICE

摘要

-38-ABSTRACTINWARDLY DEMOUNTABLE SOUNDPROOF SASH WINDOW HAVINGSASH PULL-IN TIGHTENING DEVICEA soundproof double sliding sash window includes a5 sash pull-in tightening device (1) for pulling or displacingeach of the interior and exterior sashes (8, 9) toward theinterior side as the sash approaches its fully closed posi-tion. The sash pull-in tightening device comprises a firstslide block (2) and a second slide block (4) mounted on a10 meeting stile (81; 91) and an abutment stile (82; 92),respectively, and a first pull-in member (3) and a secondpull-in member (5) mounted on a corresponding.guide rail(711, 721) and a corresponding side jamb (73), respectively,of a window frame (7). At least one of the first slide15 block and the first pull-in member and at least one of thesecond slide block and the second pull-in member are beveledsuch that as the sash approaches its fully closed position,the first and second slide blocks are brought into engage-ment with the first and second pull-in members, respective-20 ly, and subsequently displaced by the first and secondpull-in members toward the interior side of the sash window.With this displacement of the first and second slide blocks,each sash is forced against the weatherstrips carried on thewindow frame.25 (Figure 1)