| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ball screw device capable of preventing a dent from being caused on a raceway of a ball screw. <P>SOLUTION: A screw shaft 3 and a motor rotor 11 are connected via a coupling 21 capable of being axially moved relative to each other, and rotating integrally. Connection via a coupling 21 is disengaged by axial relative movement due to impact when a stopper 14 collides with a motor housing 2. <P>COPYRIGHT: (C)2009,JPO&INPIT |
