Cross shaft joint and steering device for vehicle using the same
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United States of America Patent
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Aug 8, 2017
Grant Date -
Jan 7, 2016
app pub date -
Jan 17, 2014
filing date -
Jan 21, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A cross shaft joint includes a cross shaft including four shaft parts, needle rollers rolling on outer peripheral faces of the shaft parts, bearing cups each having a cylindrical part, and a bottom part, and externally fitted to the shaft parts via the needle rollers, and yokes provided with bearing holes into which the bearing cups are inserted. The needle rollers are maintained in a tight fit state between the shaft parts and the bearing cups. Each cylindrical part is provided with a projected part projected radially inward of the cylindrical part in a curved shape, at an inner peripheral side thereof, and an apex of the projected part is in contact with the needle roller within a range in an axial direction of the needle roller, the range containing an axial center of the needle roller in the axial direction.
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