FIELD: construction.
SUBSTANCE: designs of door frames and their profiles used for concealed installation. In addition, installation is simplified, maintainability and the ability to replace the front surface are ensured. The profile of a concealed door frame is made up of a part with a hollow chamber and a strip that forms an adjacent chamber with this part by making two spaced apart landing grooves in the part with a hollow chamber, aligned with the counter protrusions on the strip; the strip with the part with the hollow chamber is equipped with side projections forming the side projection of the profile.
EFFECT: increasing the manufacturability by eliminating small cavities.
4 cl, 2 dwg
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