Protective bellows and protection method for machine tool with laser processing device

摘要

A protective bellows (1) comprises a plurality of flexible annular elements (2) connected in succession along a direction (X) of extension of the bellows, each of the flexible annular elements being sealed to another flexible annular element close to their inner edges (D2I), at least one stiffening element (3) interposed between a pair of flexible annular elements of the central region of the bellows in such a way that the flexible annular elements of the pair are sealed on the stiffening element (3) at a second sealing region (R2) close to their outer edges (D2E); at least one diaphragm (4), at least one supporting element (5) for supporting the diaphragm (4) having an inner edge (D5I) and an outer edge (D5E), interposed between a pair of flexible annular elements of the central region (RC) in such a way that the flexible annular elements of the pair are sealed on the supporting element at a second sealing region close to their outer edges (D2E), the supporting element (5) being equipped with at least one protrusion (6) defining a fixing surface and configured for protruding beyond the outer edges (D2E) of the flexible annular elements (2).