| 摘要 |
A ball joint assembly ( 10 ) comprises a socket ( 12 ) with a chamber ( 18 ), an opening extending through a first axial end ( 20 ) of the socket ( 12 ), and electrically conductive structure ( 60 ) closing the second axial end ( 22 ) of the socket ( 12 ). An electrically conductive ball stud ( 30 ) has a head portion ( 32 ) that is received in the chamber ( 18 ) and a shank portion ( 34 ) that extends through the opening. An electrically conductive bearing member ( 40 ) is received in the chamber ( 18 ) and provides an electrical connection between the structure ( 60 ) and the ball stud ( 30 ). An electrically non-conductive biasing member ( 50 ) is interposed between the structure ( 60 ) and the bearing member ( 40 ) and urges the bearing member away from the structure such that, in response to a predetermined amount of wear, the electrical connection between the structure ( 60 ) and the ball stud ( 30 ) is discontinued.
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