Relating to electrical power assisted steering
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United States of America Patent
Stats
-
Apr 27, 2004
Grant Date -
Dec 19, 2002
app pub date -
Aug 22, 2002
filing date -
Jun 16, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electric power assisted steering system is disclosed in which a motor (1) is adapted to provide, an assistance torque to an output shaft (12) through a worm gear (13) and wheel gear assembly (11) and a biasing means (14) is provided which biases the shaft carrying the worm gear (13) into engagement with the shaft carrying the wheel gear (11). The biasing means (14) may comprise a spring member provided between the gearbox housing and the bearing (9) supporting the free end of the worm gear shift, or a torsion spring adapted to act upon the bearing assembly.
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