Abstract: A vertical scaffolding element consists of a tubular portion provided with a number n of radially projecting sockets, distributed peripherally in a star arrangement. The element is designed for the attachment of one end of a horizontal crosspiece of the scaffolding. The sockets are defined by a metal strip folded in order to form a star-shaped part closed on itself having protuberances forming the sockets alternating with re-entrant regions bearing against the tubular portion. The upper and lower edges of the re-entrant regions in contact with the tubular portion are welded thereto by continuous or discontinuous annular weld beads.

Abstract: The invention relates to a vertical scaffolding element consisting of a tubular portion provided with a number n of radially projecting sockets, distributed peripherally in a star arrangement, designed for the attachment of one end of a horizontal crosspiece of the scaffolding; the sockets are defined by a metal strip folded in order to form a star-shaped part closed on itself having protuberances forming the said sockets alternating with re-entrant regions bearing against the tubular portion, the upper and lower edges of the re-entrant regions in contact with the tubular portion being welded thereto by continuous or discontinuous annular weld beads.

Abstract: The invention relates to a vertical scaffolding element consisting of a tubular portion provided with a number n of radially projecting sockets, distributed peripherally in a star arrangement, designed for the attachment of one end of a horizontal crosspiece of the scaffolding; the sockets are defined by a metal strip folded in order to form a star-shaped part closed on itself having protuberances forming the said sockets alternating with re-entrant regions bearing against the tubular portion, the upper and lower edges of the reentrant regions in contact with the tubular portion being welded thereto by continuous or discontinuous annular weld beads.

Abstract: A scaffolding system for volumes of various shapes that present a bottom and end walls. The system includes at least a first scaffolding structure having a gantry with at least two interconnected vertical poles; guides secured to the bottom of the volume to guide the poles in rectilinear displacement in a longitudinal direction; a horizontal main platform defining at least a working floor, and guides for guiding the main platform in vertical translation along the poles; at least two horizontal auxiliary platforms each defining a working floor mounted to move in horizontal translation relative to the main platform; and structure for displacing each auxiliary platform separately relative to the main platform between a retracted position and an extended position in which the outer edge of the auxiliary platform is substantially in register with the outer edge of the main platform.

Abstract: The invention relates to a scaffolding system for volumes of various shapes that present a bottom (20) and end walls. The system comprises at least a first scaffolding structure comprising a gantry having at least two interconnected vertical poles (56); means (50, 52) secured to said bottom of the volume to guide the poles in rectilinear displacement in a longitudinal direction; a horizontal main platform (60) defining at least a working floor, and means (64) for guiding said main platform in vertical translation along said poles; at least two horizontal auxiliary platforms (66) each defining a working floor mounted to move in horizontal translation relative to said main platform; and means for displacing each auxiliary platform (66, 68) separately relative to the main platform between a retracted position and an extended position in which the outer edge of the auxiliary platform is substantially in register with the outer edge of the main platform.