Butt joint between two pipe segments of sheet metal and process for manufacture thereof
AssigneeMETU-System Meinig KG
InventorManfred Meinig
Life of this patent
Estimating the term…
Abstract
Butt joint between two pipe segments (10) of sheet metal with circular or oval cross-section, which respectively exhibit on one end a connecting flange (32), formed one-piece with the adjacent pipe wall (12), for producing the butt joint with an adjacent pipe segment. On the end of each pipe segment (10) there lies, on the outer side thereof, and a least against one radial inner part of a ring rim (14) of each connecting flange (32), a one-piece reinforcing rin (47) of sheet metal.
Claims18
Butt joint between two pipe sections (10) of sheet metal with circular or oval cross-section, which respectively exhibit on one end a connecting flange (32), formed as one piece with the adjacent pipe wall (12), for production of the butt joint with an adjacent pipe section (10), wherein each connecting flange includes at least one ring rim (14) projecting outwards from the pipe wall (12) and wherein the connecting flanges (32) are held together by a tensioning device (for example, 34) for holding the pipe segments (10) together in the axial direction, thereby characterized, that a one-piece reinforcing ring (47) of sheet metal lies against the outer side of the end of each pipe segment (10) and against at least a radial inner part of each ring rim (14).
Butt joint according to one of the preceding claims, thereby characterized, that the reinforcing ring (47) lies against the entire ring rim (14).
Butt joint according to one of the preceding claims, thereby characterized, that the sheet metal thickness of the reinforcing ring (47) is greater than the sheet metal thickness of the associated pipe segment (10).
Butt joint according to one of the preceding claims, thereby characterized, that the reinforcing ring (47) is comprised of two or more sheet metal layers.
Butt joint according to one of the preceding claims, thereby characterized, that the reinforcing ring (47) extends over the entire axial length of the pipe segment (10).
Process for producing the reinforcing flange (32) of the butt joint according to one of the preceding claims, thereby characterized, that a pipe piece is slid upon the outer side of a pipe segment (10) for forming on the outer side of one end of the pipe piece (10) a reinforcing ring (47) lying there-against, then bending, from the pipe wall (12) towards outwards, a projecting ring rim (14) together with a flank (44) of the reinforcing ring (47).
Dependencies are inferred from the claim text.