| 摘要 |
A power steering apparatus including a joint including a first boss disposed on an axial end portion of a motor output shaft, first projections disposed on the first boss in the circumferential direction, a second boss disposed on an axial end portion of a worm shaft and opposed to the first boss, second projections disposed on the second boss in the circumferential direction and arranged between the adjacent first projections, a first elastic member made of metal and a second elastic member made of at least one of resin and rubber, the first and second elastic members being disposed between an axial end surface of the first boss and an opposed axial end surface of the second boss and cooperating with each other to generate an elastic force in such a direction as to move the worm shaft away from the motor output shaft.
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