A rack-and-pinion type steering device includes a ball joint for connecting a rack shaft and a tie rod. The ball joint includes a socket and a ball. The socket is provided with a regulated surface allowed to contact a regulating surface of a rack housing, and a screw projecting from the regulated surface to be connected to the rack shaft. The regulated surface includes an intermediate portion having a curved surface shape that recedes from a regulating surface in a longitudinal direction of the rack shaft toward the outer circumference, and the regulated surface has such a shape that a pointed portion toward the regulating surface is less likely to be formed on the regulated surface even if a processing error occurs in the processing for forming the regulated surface of the socket.
Ball joint and steering device including the same
03.04.2018
Patent
Elektronische Ressource
Englisch
BALL SCREW DEVICE AND STEERING DEVICE INCLUDING BALL SCREW DEVICE
Europäisches Patentamt | 2018
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