Rack shaft support device and torsion amount adjustment method for torsion spring used therein
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United States of America Patent
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May 21, 2013
Grant Date -
Jan 28, 2010
app pub date -
Jul 22, 2009
filing date -
Jul 23, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A rack shaft support device includes: a rack shaft support member that slidably supports a rack shaft; a sealing member fixed to an inlet port of a retention hole formed in a housing; an intermediate member that is interposed between the rack shaft support member and the sealing member; a torsion spring that couples the intermediate member so that torque is transmitted to the intermediate member; a torsion amount adjusting member that is attached to the sealing member in such a manner that a position of the torsion amount adjusting member with respect to the sealing member is adjustable and adjusts a torsion amount of the torsion spring; and a cam mechanism that converts a rotation force of the intermediate member induced by untwisting of the torsion spring into a force by which the intermediate member pushes the rack shaft support member.
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