Title:
SELF-PIERCING PIN AND METHOD OF INSTALLATION
Document Type and Number:
WIPO Patent Application WO2007121203
Kind Code:
B1
Abstract:
A self-piercing pin (10, 10a, 10b) and method of installing same. The pin (10, 10a, 10b) includes a body portion (12), a pierce ring (16), a flange (24), and a lock groove (26) which is disposed between the pierce ring (16) and the flange (24). An angled surface (28) is provided between the pierce ring (16) and the lock groove (26). A top side (32) of the flange (24) is generally flat so that the flange (24) can be set flush to the workpiece (18), and to enhance the side load strength of the pin (10, 10a, 10b) once the pin (10, 10a, 10b) is installed. A bottom side (34) of the flange (24) is beveled, angled or flat, thereby minimizing the amount of workpiece material which becomes displaced during installation. Upon installation, the pierce ring (16) shears the workpiece (18), and the material of workpiece flows to the lock groove portion (26) of the pin (10, 10a, 10b), thereby forming a mechanical lock between the pin (10, 10a, 10b) and the workpiece (18). A driver (60) and a die (40) are used to install the pin (10, 10a, 10b).
Inventors:
LANNI VICTOR A (US)
PURDY PAUL (US)
PURDY PAUL (US)
Application Number:
PCT/US2007/066368
Publication Date:
July 31, 2008
Filing Date:
April 11, 2007
Export Citation:
Assignee:
ACUMENT IP LLC (US)
LANNI VICTOR A (US)
PURDY PAUL (US)
LANNI VICTOR A (US)
PURDY PAUL (US)
International Classes:
B23P11/00; B27F7/00
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