Push-on fastener

专利名称：Push-on fastener

发明人：Melvyn J. L. Clough,Stephen P.

Mackowiak,Jeffrey C. Lewis

申请号：US07/225041申请日：19880727公开号：US04850778A公开日：190725

摘要：A molded plastic, push-on fastener for connection to threaded studs or the likecomprises first and second cylindrical collar members. The first collar has a resilient sidewall and threads are formed on the interior thereof in a form and size for positiveengagement with the threads on the associated threaded stud. The second collarmember has a relatively rigid side wall with an open interior diameter which is greaterthan the diameter of the first collar member to permit the second member to bereceived over and surround the first member. A thin frangible, connecting web isprovided for temporarily connecting the collar members in axial alignment. Cooperatinginterengaging thread forms are formed on the exterior of the first collar member andthe interior of the second collar member. These interengaging thread forms act to inhibitradial expansion of the first collar member while simultaneously preventing axialwithdrawal of the second member in a direction off the first member after the secondmember has been moved from the temporarily connected position to an installedposition received over and surrounding the first collar member.

申请人：TRW, INC.

代理机构：Fay, Sharpe, Beall, Fagan, Minnich & McKee

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