BALL SEAT AND BALL JOINT
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United States of America Patent
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Issued Date -
Sep 15, 2016
app pub date -
Oct 6, 2014
filing date -
Oct 17, 2013
priority date (Note) -
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Abstract
A ball joint includes a ball seat for slidably holding a ball part of a ball stud. In the ball seat, a stud-side holder is housed in a housing of a socket while the stud-side holder is tilted and deformed to the ball part side by a tapered part. A first groove is formed in the stud-side holder of a holder of the ball seat. The first groove has an only shape with the curvature of the inner surface of the cross-section being a finite value, in other words, has a shape in which a shape with the curvature of the inner surface being an infinite value is not included. The first groove has a shape in which the first derivation value of the distance between the central axis of the tubular holder and the inner surface of the first groove consecutively changes.
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