SPLINE TELESCOPIC SHAFT, VEHICLE STEERING APPARATUS WITH THE SPLINE TELESCOPIC SHAFT, AND METHOD FOR MANUFACTURING THE SPLINE TELESCOPIC SHAFT
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United States of America Patent
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app pub date -
Feb 18, 2011
filing date -
Feb 23, 2010
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Abandoned
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Abstract
A spline telescopic shaft includes an inner shaft and a tubular outer shaft fitted slidably in an axial direction, outer splines provided on an outer periphery of the inner shaft, inner splines provided on an inner periphery of the outer shaft, a resin coating provided on at least one of the outer splines and the inner splines, and a lubricant retaining groove formed on the resin coating by using any of a laser, water jet, and compressed air, and extending in a direction crossing the axial direction.
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