SPLINE TELESCOPIC SHAFT OF VEHICULAR PROPELLER SHAFT
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United States of America Patent
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Issued Date -
Apr 9, 2020
app pub date -
Sep 24, 2019
filing date -
Oct 6, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A spline telescopic shaft of a vehicular propeller shaft includes a spline outer shaft and a spline inner shaft. In an outer peripheral surface of an outer spline provided on the spline inner shaft, a first portion is coated with a coating film, and a second portion is not coated with the coating film. The first portion extends from an end portion of the outer spline to a prescribed position, the end portion of the outer spline being located on a side of a distal end portion of the spline inner shaft, the prescribed position being located closer to the distal end portion of the spline inner shaft than an end surface of an inner spline is, and the end surface of the inner spline being located on a side of an opening portion of the spline outer shaft.
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