Screw Connection and a Wire Thread Insert Therefore
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United States of America Patent
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N/A
Issued Date -
Nov 13, 2008
app pub date -
Jun 15, 2005
filing date -
Jun 15, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A screw connection comprising a wire thread insert 8 which is inserted between a female thread M of a workpiece 4 and a male thread B of a screw 6 and which consists of a helically coiled wire thread member having a male thread adjacent internal thread 10 and a female thread adjacent external thread 12, characterized in that the profile angles .beta..sub.B, .beta..sub.M of the internal and external threads 10, 12 of the wire thread insert 8 are smaller than the respective profile angles .alpha..sub.B, .alpha..sub.M of the male thread B and, respectively, the female thread M such that when the screw connection is loaded by a predetermined biasing force K.sub.V the load flanks of the internal and external threads 10, 12 of the wire thread insert 8 engage the associated load flanks of the male and female threads B, M in full contact relationship.
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