Insulating box for blinds in building windows and doors

摘要

Insulating drawer for shutters in windows and doors of buildings, characterized by being made up of three pieces of general rectangular shape and a certain thickness, with various reliefs and longitudinal cutouts, from end to end, that fit between them, and, one Once joined, they define the walls of an inverted "U" -shaped structure, to the base of which a fourth piece can be attached that closes the lower part of the drawer, except for a longitudinal opening for the shutter to exit from its interior in coincidence with the door or window frame travel guide. A generally rectangular shaped piece (1) constitutes one of the side walls of the drawer. Its outer part has various parallel longitudinal recesses (2) made, from end to end of the wall. The thickness of the central part of the internal face of the piece has a semicircle cut (3); that of the lower part, also on its internal face, has a small longitudinal recess slightly curved upwards (4), from end to end of the piece; and the one at the top, also on its internal side, from end to end, a longitudinal section whose profile breaks into several geometric recesses (5). A second piece in a generally rectangular shape (6) constitutes the opposite side wall, which is somewhat lower than the one previously described. Its outer part has various parallel longitudinal recesses (7) made, from end to end of the wall. The thickness of the central part of the internal face of the piece has a semicircle cut (8); that of the lower part, also on its internal face, has a small longitudinal recess slightly curved in a downward direction (9), from end to end of the piece; the end of the upper part is cut following a profile with various geometric longitudinal projections (10). A third piece in a generally rectangular shape (11) constitutes the upper wall of the drawer. Its outer part has various parallel longitudinal recesses (12) made, from end to end of the wall. The thickness of the central part of the internal face of the piece presents a semicircle cut (13), coinciding with the semicircle cuts (3) and (8) of the side walls. The lower part of one of the sides of this piece is cut longitudinally from end to end, defining a broken profile with various geometric recesses that coincide exactly by inversion of the drawing or tongue and groove with the cut (10) of the side piece on the same side of the drawer. . The opposite side of this upper part is cut longitudinally from end to end defining geometric protrusions that exactly coincide by inversion of the drawing or tongue and groove with the cut (5) of the side part on the same side of the drawer. The three pieces previously described are fitted and fastened, defining the general structure of the drawer, to which a fourth piece is attached at its base, inserting the longitudinal projection of one of its sides in the curved recess (4) or (9) of the side walls of the drawer. (Machine-translation by Google Translate, not legally binding)