Tongue-and-groove coupling between panels of self-supporting air-conditioning ducts

摘要

The invention relates to a tongue-and-groove coupling between panels of self-supporting air-conditioning ducts and the like, of the type that is provided in order to establish an optimum fit of the canted edge corresponding to the panels that are coupled in a tongue-and-groove manner, and also, to avoid the air coming into contact with the core of the duct therein. To this end, the panels consist of a core of insulating material complemented by an outer layer and inner layer based on aluminum or some other coating, the juxtaposing canted edge or edge between the panels having an oblique cut in relation to the horizontality or longitudinal intermediate line in the joint between the two panels; the aluminum layer or coating, which determines the inner face of the duct, extending beyond the edge of the panel, and being fixed to the oblique surface that defines the coupling profile.

主权项

1. A self-supporting air duct, comprising:
panels coupled by tongue-and-groove coupling along a longitudinal joint line between two panels, wherein the panels are made up from a core panel of insulating material supplemented with both an outer coating layer and an inner coating layer, and each panel has a respective coupling profile with a canted edge, the panels being juxtaposed with a joint line parallel to the canted edge with the respective canted edges of the panels facing each other, and wherein the canted edges have an oblique surface cut from a horizontal surface of the core, wherein the coating layer, which determines the inner face of the duct, extends beyond the edge of the panel, being fixed to at least a portion of the oblique cut surface that defines the coupling profile, wherein the panels are planar having two horizontal parallel surfaces.