Spline telescopic shaft and method for manufacturing the same and vehicle steering apparatus
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United States of America Patent
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Jun 17, 2014
Grant Date -
Feb 10, 2011
app pub date -
Aug 3, 2010
filing date -
Aug 7, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
There is provided a spline telescopic shaft having first and second shafts that are fitted to each other slidably in an axial direction. First and second splines that engage with each other are respectively provided in the first and second shafts. A resin coating that is provided on at least a tooth surface of the first spline is fitted to a tooth surface of the second spline. The resin coating is subjected to heat fitting processing for sliding the first and second shafts in the axial direction under predetermined conditions, to fit a surface of the resin coating to the tooth surface of the second spline.
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