| 摘要 |
A press-stud, or snap fastener (10), particularly for items of clothing and the like, comprising a first female annular element (11) and a second male annular element (12), each one of which is provided with a respective central hole (13, 14), the edge of which provides engagement for a corresponding fixing rivet (15, 16); the first annular element (11) has a central flat portion (17) for contact with a flap (L1) of an item of clothing or other article to which it is fixed, and an outer portion (18), substantially C- shaped in cross-section, which forms a channel (19) which is open internally in a radial direction and accommodates an elastic annular body (20), for reversible locking, which is designed to engage a central collar (21) of the second annular element (12), surrounding it substantially in an undercut arrangement, the central collar (21) being shaped with the outer diameter of its base (22) smaller than the outer diameter of its opposite end part (23); the second annular element (12) is shaped so as to have an opening (24) for the passage of the first annular element (11), and an annular seat (25) for the same first annular element (11); the annular perimetric edge (26) of the opening (24) extends radially so as to form an extraction-preventing rim (27), which is adapted to prevent the release of the first annular element (11) from its seat (25) in the second annular element (12), when the first annular element (11) is arranged below the extraction-preventing rim (27) with a corresponding outer perimetric annular portion (28) thereof. |
