| 摘要 |
FIELD: door units, particularly door frame structures. ^ SUBSTANCE: door frame comprises closed frame with upper, lower and side parts provided with outer surfaces, as well as locking member and fastening members. The door frame defines through cavity. Door frame also has fixers with threaded orifices, base and posts. Fastening orifices are made in the base. Threaded orifices are formed in posts. Bases are connected to outer surfaces of upper and side closed frame parts by means of fastening orifices and fastening members. ^ EFFECT: extended range of door units by novel door frame structure creation. ^ 2 dwg |
