INTERIOR DOOR Russian patent published in 2020 - IPC E06B3/984 E06B3/70 

FIELD: construction.

SUBSTANCE: interior door relates to construction, namely to design of interior doors with door leaf, which includes additional detachable elements, and can be used in buildings to close openings. Interior door includes door leaf made with minimum allowable width, which contains at least on one end surface along length at least one longitudinal groove, in which is installed by means of joiner connection "tenon-groove" detachable profile, made with width of multiple 5 and equal to pitch of change of wall openings in accordance with GOST 475-2016, and having at least one longitudinal tenon on one end surface along length, and at least one longitudinal groove on opposite end surface along length. Detachable profile is fixed in connection "tenon-groove" with door leaf or detachable profile by fasteners or retainers of connection. In slots of door leaf and removable profile there is a seal or a plug.

EFFECT: technical result of this invention is the creation of a modular structure of the door leaf, allowing to vary the width of the door leaf depending on the width of the wall opening due to the fact that the door leaf is made with minimum allowable width and comprises at least on one end surface along length at least one longitudinal groove, in which is installed by means of joiner connection "tenon-groove" detachable profile, made with width multiple of 5 and equal to pitch of change of wall openings in accordance with GOST 475-2016, as well as having on one end surface along length at least one longitudinal tenon, and on opposite end surface along length at least one longitudinal groove, detachable profile is fixed in connection "tenon-groove" with door leaf or other detachable profile fasteners or retainers of connection, streamlined production of door leaf, since it is not required to establish production of door leaf of various sizes, which reduces costs and saving resources in production, reduced labor intensity of the door leaf assembly to increase its width due to the presence of a "tenon-groove" connection in the structure, which allows detachable profile to be easily connected with end surface of door leaf or detachable profile with exact match of mating surfaces without their displacement relative to each other.

9 cl, 7 dwg