DOOR LEAD FRAMING Russian patent published in 2007 - IPC E06B3/70 

FIELD: building, particularly window sashes, door leaves, or like elements for closing openings.

SUBSTANCE: door leaf framing comprises case with walls and cavity. The case is defined by extreme and central parts connected with each other so that through cavities or windows are created. The framing is provided with heat- and sound-proofing bullet-proof panels. Each panel is made as body comprising bottom, side part, inner cavity, closure, fastening means, heat- and sound-proofing porous plates and steel bullet-proof plates. Inner cavity is provided with inlet and outlet. Heat- and sound-proofing porous plates and steel bullet-proof plates are arranged in body cavity in alternating stacked relationship. The body is made of thin steel sheet. Fastening means is defined by steel sheet edges and has U-shaped cross-section with edge cavities. Closure is installed at inlet/outlet and partly passes in edge cavities. The panels are located in through cavities or in windows and are connected to the case with fixers by means of fastening means.

EFFECT: extended field of technical means for door production.

2 dwg