BALL SCREW AND STEERING APPARATUS
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United States of America Patent
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N/A
Issued Date -
Aug 27, 2015
app pub date -
Jul 25, 2014
filing date -
Feb 26, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A ball screw includes: a nut; a screw shaft; and an end deflector that is attached to the nut, and has a guiding protrusion portion which protrudes toward a helical groove of the screw shaft, in which a guiding tip edge of the guiding protrusion portion picks up a ball and guides the ball into the end deflector, the end deflector includes a ball lifting portion that lifts the ball along one groove side surface of the helical groove, and the guiding tip edge picks up the ball lifted by the ball lifting portion.
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