Abstract: A bar of a support structure for a false ceiling is described. The bar has an elongated shape along a longitudinal direction and includes at least two sheet metal portions located side by side or overlapped, in contact or adherent, with each other along said longitudinal direction, or short side direction. In the bar a transverse direction, or short-side direction, extending transverse to, or intersecting, said longitudinal direction is defined. At least one of the sheet metal portions has cuts defining partially cut parts, wherein a partially cut part of said at least one of the sheet metal portions protrudes towards the other of said sheet metal portions in a thickness direction so as to determine an interference of parts in the thickness direction. The cuts are arranged, are directed, or extend along said transverse direction and the partially cut parts have, when viewed in perspective, an at least partially curvilinear or concave profile.

Abstract: A support structure for a false ceiling and a working process for working the bar are described. The bar has an elongated shape along a longitudinal direction and includes at least two sheet metal portions located side by side or overlapping, in contact or adherent, the one with the other. In the bar a transverse direction, extending transverse to, or intersecting, the longitudinal direction is defined. At least one of the sheet metal portion has cuts defining partially cut parts, wherein a partially cut part of at least one of the sheet metal portions protrudes towards the other to determine an interference of parts, and wherein the cuts are arranged, are directed, or extend along the transverse direction.

Abstract: A metal profile for a false ceiling and support structure for a false ceiling including at least one pair of metal profiles is described. The metal profile includes a main portion and an integral engaging member connected as a single body, or as one piece, to at least one end of the main portion, wherein said integral engaging member includes a plate-like portion and an engaging tongue or fin connected as one piece to the plate-like portion, wherein said engaging tongue or fin is detached or separated from said plate-like portion on at least two sides of the engaging tongue so as to define a cut profile shaped like a “7”. The engaging tongue or fin is displaceable by means of elastic deformation between a first position in which the engaging tongue is located protruding from a plane of the plate-like portion, and a second position in which said engaging tongue is displaced towards the plane of the plate-like portion.

Abstract: A support structure for a false ceiling and a working process for working the bar are described. The bar has an elongated shape along a longitudinal direction and includes at least two sheet metal portions located side by side or overlapping, in contact or adherent, the one with the other. In the bar a transverse direction, extending transverse to, or intersecting, the longitudinal direction is defined. At least one of the sheet metal portion has cuts defining partially cut parts, wherein a partially cut part of at least one of the sheet metal portions protrudes towards the other to determine an interference of parts, and wherein the cuts are arranged, are directed, or extend along the transverse direction.

Abstract: A bar of a support structure for a false ceiling is described. The bar has an elongated shape along a longitudinal direction and includes at least two sheet metal portions located side by side or overlapped, in contact or adherent, with each other along said longitudinal direction, or short side direction. In the bar a transverse direction, or short-side direction, extending transverse to, or intersecting, said longitudinal direction is defined. At least one of the sheet metal portions has cuts defining partially cut parts, wherein a partially cut part of said at least one of the sheet metal portions protrudes towards the other of said sheet metal portions in a thickness direction so as to determine an interference of parts in the thickness direction. The cuts are arranged, are directed, or extend along said transverse direction and the partially cut parts have, when viewed in perspective, an at least partially curvilinear or concave profile.

Abstract: A steel article for false ceilings or for supporting false ceilings and process for making the article is described. The article has the following combination of features: maximum tensile strength Rm greater than 500 N/mm2 and elongation from 0% to 15%.

Abstract: A metal profile for a false ceiling and support structure for a false ceiling including at least one pair of metal profiles is described. The metal profile includes a main portion and an integral engaging member connected as a single body, or as one piece, to at least one end of the main portion, wherein said integral engaging member includes a plate-like portion and an engaging tongue or fin connected as one piece to the plate-like portion, wherein said engaging tongue or fin is detached or separated from said plate-like portion on at least two sides of the engaging tongue so as to define a cut profile shaped like a “7”. The engaging tongue or fin is displaceable by means of elastic deformation between a first position in which the engaging tongue is located protruding from a plane of the plate-like portion, and a second position in which said engaging tongue is displaced towards the plane of the plate-like portion.

Abstract: A steel article for false ceilings or for supporting false ceilings and process for making the article is described. The article has the following combination of features: maximum tensile strength Rm greater than 500 N/mm2 and elongation from 0% to 15%.