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11. 发明公开

EP2289764A1 Electric power steering system 有权
标题翻译：电力系统
公开(公告)号：EP2289764A1
公开(公告)日：2011-03-02
申请号：EP10174450.6
申请日：2010-08-30
申请人： JTEKT Corporation
发明人： Asakura, Toshihiro , Hara, Takashi , Asakura, Masayoshi
IPC分类号： B62D5/04
CPC分类号： B62D5/0427 , B62D5/0448
摘要： In an electric power steering system, multiple cutouts (45) are formed in a flange portion (36) formed on an axial end portion (23a) of a ball screw nut (23) of a ball screw device that drives a rack shaft. In addition, a motor shaft (6) has a thin-plate portion (44) that extends on the radially outer side of the ball screw nut (23). When the thin-plate portion (44) that extends from the motor shaft (6) is swaged into the cutouts (45) that serve as engagement recesses that have side walls in the circumferential direction, the rotation of the ball screw nut (23) relative to the motor shaft (6) is restricted.
摘要翻译：在电动助力转向系统中，在形成在驱动齿条轴的滚珠丝杠装置的滚珠丝杠螺母（23）的轴向端部（23a）上的凸缘部（36）上形成有多个切口（45）。此外，电动机轴（6）具有在滚珠丝杠螺母（23）的径向外侧延伸的薄板部（44）。当将从电动机轴6延伸的薄板部44模压成作为在周向具有侧壁的接合凹部的切口45时，滚珠丝杠螺母23的旋转，相对于电机轴（6）的限制。

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