STEERING SYSTEM AND METHOD FOR ARRANGEMENT OF IDLER PULLEY
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United States of America Patent
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Issued Date -
Aug 10, 2017
app pub date -
Jan 25, 2017
filing date -
Feb 5, 2016
priority date (Note) -
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Abstract
A steering system includes a motor, a rack shaft, and a nut that is screw-thread on the rack shaft via a plurality of balls. The steering system further includes a reduction mechanism having a driving pulley, a driven pulley, a belt, and an idler pulley that applies tension to the belt. The steering system further includes a housing that houses the motor, the rack shaft, the nut, and the reduction mechanism. Compressive rigidity in an axial direction is set to vary between a near-end area and a far-end area of the housing. The idler pulley is provided so as to contact a portion of the belt which is loosened when end contact occurs at an axial end of the housing where the compressive rigidity is set to a larger value.
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