SELF-PIERCING PIN AND METHOD OF INSTALLATION
    31.
    发明公开
    SELF-PIERCING PIN AND METHOD OF INSTALLATION 审中-公开
    自动穿孔螺栓和安装及其方法

    公开(公告)号:EP2004369A2

    公开(公告)日:2008-12-24

    申请号:EP07760435.3

    申请日:2007-04-11

    IPC分类号: B27F7/00 B23P11/00

    摘要: 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).

    ONE-PIECE FLAG NUT
    32.
    发明授权
    ONE-PIECE FLAG NUT 有权
    积分FLAGS母亲

    公开(公告)号:EP1511942B1

    公开(公告)日:2008-02-20

    申请号:EP03731199.0

    申请日:2003-05-15

    摘要: A one-piece flag nut (20) having a flag portion (24) protruding perpendicularly to the axis (Z) of a nut portion (22) thereof such that during installation, as the flag nut (20) rotates, the flag portion (24) catches on any nearby structure (80) and acts as a wrench during the installation process. The one-piece flag nut (20) is formed by an extrusion process, and preferably formed to have ribs (74) provided on the flag portion (24) thereof which provide strength to the flag nut (24). The outer edges (66, 68, 70) of the flag portion (24) are preferably rolled to prevent the flag portion (24) from being hung up on the structure (80) during the installation process, thus preventing the flag nut (20) from being properly seated.