EP 1648634 A1 20060426 - IMPROVED BLIND FASTENER AND METHOD OF SETTING
Title (en)
IMPROVED BLIND FASTENER AND METHOD OF SETTING
Title (de)
VERBESSERTER BLINDNIET UND SETZVERFAHREN
Title (fr)
ELEMENT DE FIXATION A L'AVEUGLE AMELIORE ET PROCEDE DE POSE DUDIT ELEMENT
Publication
Application
Priority
- EP 2004007915 W 20040716
- GB 0317307 A 20030724
Abstract (en)
[origin: GB2404231A] A method of connecting together at least two work-pieces 30, 32 using a blind rivet 10 comprises rotating the rivet whilst simultaneously applying pressure 40 to the rivet against the work-piece. The rotation of the rivet results in the generation of heat which softens, or reduces the strength, of the workpiece material locally to the area of contact such that the biassing pressure pushes the rivet though generating its own hole. Once inserted, rotation is stopped and a mandrel 20 can be used to compress the work-pieces between a deformed portion and a flange 14. Preferably, the end 42 of the rivet has an abrasive surface to produce more friction. The blind side of the rivet may be tapered, frusto-conical or parabolically curved. Rotating and setting of the rivet can ideally be carried out with a single tool.
IPC 1-7
IPC 8 full level
B21C 37/29 (2006.01); B21J 15/04 (2006.01); B21J 15/12 (2006.01)
CPC (source: EP GB US)
B21C 37/298 (2013.01 - EP US); B21J 15/027 (2013.01 - EP US); F16B 19/086 (2013.01 - GB)
Citation (search report)
See references of WO 2005014200A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
GB 0317307 D0 20030827; GB 2404231 A 20050126; GB 2404231 B 20060906; EP 1648634 A1 20060426; JP 2006528554 A 20061221; US 2006236739 A1 20061026; WO 2005014200 A1 20050217
DOCDB simple family (application)
GB 0317307 A 20030724; EP 04763265 A 20040716; EP 2004007915 W 20040716; JP 2006520748 A 20040716; US 56561004 A 20040716