SPIRAL DRIVE FASTENER WITH ENGAGEMENT RAMP
    3.
    发明授权
    SPIRAL DRIVE FASTENER WITH ENGAGEMENT RAMP 有权
    随着经营RAMP螺旋驱动紧固件

    公开(公告)号:EP1815151B1

    公开(公告)日:2010-11-24

    申请号:EP05802550.3

    申请日:2005-10-04

    Inventor: DILLING, Gary

    CPC classification number: B25B15/005 B21K1/463 B21K5/20 F16B23/003 Y10S411/919

    Abstract: The fastener of this application is designed to facilitate the insertion of rotating power driven tools into the fastener recess. The recess of this fastener generally uses spirally configured driving surfaces and is formed in a counterbore in the upper surface of the fastener. The driving lobes have upper surfaces that are depressed a distance into the counterbore. A ramp surface is formed on each of the upper surfaces that causes a spinning bit to fall into the recess in an engaged manner. The ramp surfaces are constructed with both removal and installation ramp portions.

    SPIRAL DRIVE FASTENER WITH FRICTION ENGAGEABLE SURFACE
    4.
    发明公开
    SPIRAL DRIVE FASTENER WITH FRICTION ENGAGEABLE SURFACE 审中-公开
    固定装置,蜗杆齿轮和摩擦配合摄取区

    公开(公告)号:EP1738085A2

    公开(公告)日:2007-01-03

    申请号:EP05735511.7

    申请日:2005-04-12

    Inventor: DILLING, Gary

    CPC classification number: F16B23/0023 B21K5/20 B23P15/00 Y10S411/919

    Abstract: Interference surfaces are constructed on inner transition surfaces between wings of a fastener having a spiral recess. A portion of the transition surface is tapered to provide the interference. A standard driver for a spiral recess will engage the interference surface to create a "stick fit" engagement. The punch is formed using a wire EDM operation to construct tapered surfaces within the die cavity of a hob. The hob is machined down to obtain the desired depth, which is measured up from a gage spot indicative of the sticking point.

    SPIRAL DRIVE FASTENER WITH ENGAGEMENT RAMP
    6.
    发明公开
    SPIRAL DRIVE FASTENER WITH ENGAGEMENT RAMP 有权
    随着经营RAMP螺旋驱动紧固件

    公开(公告)号:EP1815151A2

    公开(公告)日:2007-08-08

    申请号:EP05802550.3

    申请日:2005-10-04

    Inventor: DILLING, Gary

    CPC classification number: B25B15/005 B21K1/463 B21K5/20 F16B23/003 Y10S411/919

    Abstract: The fastener of this application is designed to facilitate the insertion of rotating power driven tools into the fastener recess. The recess of this fastener generally uses spirally configured driving surfaces and is formed in a counterbore in the upper surface of the fastener. The driving lobes have upper surfaces that are depressed a distance into the counterbore. A ramp surface is formed on each of the upper surfaces that causes a spinning bit to fall into the recess in an engaged manner. The ramp surfaces are constructed with both removal and installation ramp portions.

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