发明名称 |
VEHICLE POWERTRAIN JOINTS COMPRISING SELF-TAPPING FASTENERS |
摘要 |
A method for fastening components (18, 20) at critical joints in a motor vehicle powertrain (24). An unthreaded hole (22) is provided in a first component part (20), and a clearance hole (16) in a second component part (18). The shank (14) of a screw (10) that has a multi-lobed lead capable of creating a thread in the unthreaded hole is passed through the clearance hole to engage the multi-lobed lead with the unthreaded hole. Axial force and rotary torque are applied to the screw to cause the lead to form a desired helical thread in the unthreaded hole. |
申请公布号 |
KR20070067242(A) |
申请公布日期 |
2007.06.27 |
申请号 |
KR20077012442 |
申请日期 |
2007.06.01 |
申请人 |
INTERNATIONAL ENGINE INTELLECTUAL PROPERTY COMPANY, LLC |
发明人 |
BERNARD JEREMY;VAN DER MOERE DONALD;CAGNEY JOHN |
分类号 |
B23P11/00;B23P17/00;F16B7/18;F16B35/04 |
主分类号 |
B23P11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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