Electric power steering apparatus
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United States of America Patent
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-
Oct 9, 2007
Grant Date -
Nov 11, 2004
app pub date -
Apr 14, 2004
filing date -
Apr 15, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electric power steering apparatus comprises an electric motor for producing a steering assist force, and a speed reduction mechanism for decelerating the rotation of an output shaft in the electric motor. The speed reduction mechanism comprises an input pulley driven by the electric motor, an output pulley connected to a steering shaft, and a belt for connecting the input pulley and the output pulley to each other. The belt comprises a helical toothed belt. The input pulley and the output pulley respectively include helical toothed pulleys meshed with the helical toothed belt.
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