Newfrey Lcc

James Hughes

Steven Victor Jones

Stephen Morris

There is provided a blind rivet () comprising an axially extending hollow tubular body () having a tail end face () at one end and a pre-formed radially enlarged flange () at the other end, together with a mandrel () having a stem () which extends co-axially though the body () and having enlarged head adjacent the tail end () of the body, the stem having a weakened region immediately adjacent the head, whereby the mandrel head having an outer diameter greater than an outer diameter of the body, usually by between 4% and 9%, and which has a uniform conical shoulder () extending between the outer diameter of the head and the stem (), so as to exert a setting force having an axial component for compressing the rivet body axially and an angular component effecting conical deformation of the tail end radially.

Blind rivet

There is provided a blind rivet including an axially extending hollow tubular body having a tail end face at one end and a pre-formed radially enlarged flange at the other end, together with a mandrel having a stem which extends co-axially though the body and having enlarged head adjacent the tail end of the body, the stem having a weakened region immediately adjacent the head. There is also provided a method of fastening at least two workpieces using such a blind rivet, including providing the blind side of the workpieces with a countersunk region to accommodate the conically deformed tail end of the body after setting, substantially flush therewith.

Growing community of inventors

Birmingham, United Kingdom

James Hughes