WINDOW BOARD Russian patent published in 2008 - IPC E06B1/70 

FIELD: construction industry.

SUBSTANCE: invention refers to construction industry, and namely to window boards, and can be used in window constructions and window opening finishing. Window board is made in the form of hollow pressed industrial section with inner ribs comprising through-passages, and has two ends on side edges. Due to the fact that ribs comprise stiffening trusses divided by box sections, the selected distance between which is equal to standard windowsill width, it is possible to make distance between ribs bigger without deteriorating strength properties of external panels. In this case length cut of board is supposed to be performed along box section centre, which does not deteriorate strength properties of external surfaces, and leaves cross cut of board "closed", and in order to ensure full parts of cut board, section's angle pieces are made symmetrical.

EFFECT: production of window board design appropriate to material due to ensuring the possibility of board's length cut into narrower pieces, each of which can be used as separate windowsill without damaging its aesthetic properties while decreasing wasteful material usage.

6 cl, 1 dwg