Apparatus for the antivibratory wedging of component parts of an installation, and in particular antivibratory bars for wedging the tubes of a steam generator

Apparatus for the antivibratory wedging of component parts (4) of an installation which are disposed in such a manner as to form successive rows separated by a space of substantially constant width, which apparatus is intended to be inserted between two successive rows and is composed of a sectional member (11, 31, 41) having a hollow section, in which are disposed at least two wedging members (12, 13, 14) mounted for movement relative to one another in the longitudinal direction of the sectional member and having complementary operating surfaces and a relative longitudinal displacement means, in such a manner as to be displaced relative to one another both in the longitudinal direction and in the transverse direction corresponding to the direction of the width of the rows, at least one of the wedging members (12, 13) coming to bear against component parts (4) disposed in a row, characterized by the fact that at least one of the wedging members (12, 13) is in the form of an elastic metal strip folded in such a manner as to form transverse crenellations disposed in succession in the longitudinal direction, and having opposite support faces (16, 17;

• 36, 37;
• 45, 46) directed in the one case towards the interior of the sectional support (11, 31, 41) and in the other case towards the outside, and a flat strip (14, 34, 44) provided with openings (20, 40, 50) separated by intermediate portions (21, 39, 49) of the flat strip and whose dimensions and arrangement along the length of the strip (14, 34, 44) correspond to the dimensions and arrangement of the inner support surfaces (17, 37, 45) of the folded strip (12, 13;
• 32, 42);
• the longitudinal displacement means being associated with the flat strip (14, 34, 44) for the displacement of the latter between an unlocked position, in which the inner support surfaces (17, 37, 45) coincide with the openings (20, 40, 50) in the flat strip, and a locked position in which the inner support surfaces are in contact with the intermediate portions (21, 39, 49) of the flat strip between the openings (20, 40, 50).