07-11-2013 дата публикации
Номер: US20130294860A1
A functional element having a functional portion, a generally tubular rivet portion and a ring-like sheet metal contact surface is characterised in that features of shape are provided at the rivet portion for co-movement of the sheet metal part during the formation of the rivet bead, in particular at the free end of the rivet portion and/or at the radially outer side of the rivet portion, at least in the region adjacent the free end of the rivet portion. A component assembly comprising a functional element and a sheet metal part as well as a method for the attachment of a functional element to the sheet metal part are also claimed. 11010161717222222222222. A functional element (′; ″) having a functional portion (; ; ′) , a generally tubular rivet portion and a ring-like sheet metal contact surface (; ′; ″; ″ , ′″ , ″″) ,wherein{'b': 70', '70', '70', '80', '80', '70', '90', '90', '70', '20', '14', '59', '20, 'the tubular rivet portion has a cylindrical surface and has features of shape (; , ′; ; , ; ; , ) provided at the rivet portion (), adapted for co-movement of the sheet metal part () during the formation of the rivet bead, at at least one of at the free end () of the rivet portion and at the radially outer side of the cylindrical surface of the rivet portion ().'}2. The functional element in accordance with claim 1 , [{'b': 70', '70', '70', '22', '22', '22', '22', '22', '22', '59', '20, 'a) axially extending ribs (; , ′) at the cylindrical surface of the rivet portion, which extend at least from a region adjacent the contact surface (; ′; ″; ″, ′″, ″″) up to shortly before the free end () of the rivet portion (),'}, {'b': 80', '59', '20', '20, 'b) a bead () provided at the free end () of the rivet portion () and projecting radially beyond the outer cylindrical surface of the tubular rivet portion () and'}, {'b': 70', '90', '59', '20', '50, 'c) at least one of locally raised portions (′; ) and recesses at the free end () of the rivet portion (), which are ...
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