| 摘要 |
FIELD: construction, particularly doors, windows, blinds and gates. ^ SUBSTANCE: window unit comprises window casing with groove adapted to receive sealing pipe. Window unit also has window cross and compressed air source communicated with the sealing pipe. The window cross has groove facing groove of window casing. Grooves of window cross and casing extend along perimeters thereof. Compressed air source is located in depression formed in window casing or in window cross and closed with displaceable decorative plate. The compressed air source is pump or compressed air cylinder and is connected with the decorative plate to inflate and deflate the sealing pipe. ^ EFFECT: increased air-tightness and heat-and-acoustic insulation of window openings. ^ 9 dwg |
