| 摘要 |
PURPOSE: A ball joint for a vehicle rod arm is provided to prevent a socket member and a ball member from being transformed due to excessive impact and to obtain operation stability improved through stable lubrication. CONSTITUTION: A ball joint (1) for a vehicle rod arm comprises a socket (10) and a ball member (20). The socket comprises an accommodation groove including an opening unit. An end of the ball member is entered to the accommodation groove of the socket through the opening unit and is fixed to the socket as a bend structure. The socket and the ball member are connected to the various rod arms through connection shafts (12,22). A ball sheet of reinforced plastics is covered on an outer periphery of the end of the ball member. A side elastic supporting member comprised of a plate spring is arranged in an inner side surface of the accommodation groove as a radial structure.
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