Method of manufacturing a power assisted steering control assembly
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United States of America Patent
Stats
-
Dec 31, 2013
Grant Date -
May 17, 2012
app pub date -
Jul 22, 2010
filing date -
Jul 22, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of manufacture of a power assisted steering control valve including a pinion shaft, an input shaft and a torsion bar comprising following steps: receiving into clamping fixtures of an assembly machine a pre-assembled loose assembly of said pinion shaft, input shaft and torsion bar, establishing and recording a predefined rotation clearance between a shoulder of said pinion shaft and an end of said input shaft, rotating said input shaft in opposing directions between rotation limiting stops to said pinion shaft, pressing a first end of said torsion bar into said input shaft to form a locked together assembly of said input shaft and said torsion bar, and axially advancing said assembly of said input shaft mid said torsion bar into said pinion shaft so as to press a second end of said torsion bar into a locked together assembly with said pinion shaft.
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