FIELD: construction, particularly door units.
SUBSTANCE: door frame comprises front and rear panels connected with each other so that cavities are created, as well as locking member. The front and rear panels comprise orifices and made of steel sheets. Steel sheets have U-shaped cross-sections provided with side parts. Rear panel width is equal or less than that of inner side surface of front panel. Rear panel height is equal or less that that of inner side surface of front panel. Front panel orifice perimeter is equal to 1.1-1.4 perimeters of rear panel orifice.
EFFECT: extended range of technical means.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DOOR FRAME AND DOOR FRAME SUPPORT | 2005 |
|
RU2298625C1 |
| DOOR ASSEMBLY, DOOR LEAF, DOOR LEAF FRAMING AND DOOR-FRAME | 2005 |
|
RU2296844C1 |
| PRODUCTION METHOD FOR DOOR FRAME OF SAFETY DOOR | 2005 |
|
RU2298071C1 |
| DOOR ASSEMBLY (VARIANTS), DOOR LEAF, DOOR LEAF FRAMING AND DOOR-FRAME | 2005 |
|
RU2296845C1 |
| DOOR ASSEMBLY | 2005 |
|
RU2296846C1 |
| DOOR FRAME | 2005 |
|
RU2300614C1 |
| METHOD OF FABRICATION OF CANDLESTICK | 2007 |
|
RU2354884C2 |
| DOOR FRAME | 2005 |
|
RU2303686C1 |
| DOOR, DOOR LEAF, DOOR LOCKING SYSTEM AND CROSS-BAR | 2005 |
|
RU2298627C1 |
| LOCK AND LOCK BODY | 2005 |
|
RU2295016C1 |
