| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball screw mechanism capable of suppressing abrasion while securing smooth action. SOLUTION: This ball screw mechanism is provided with a sphere 3 sandwiched between and engaged with a spherical face 4d of a connecting member 4 and a spherical face 2a of a nut 2. Due to this, when pressing force is applied from the connecting member 4 to the nut 2, the spherical faces 4d, 2a are brought into surface contact with the sphere 3 and contact pressure is reduced. As a result, abrasion of the connecting member 4 and the nut 2 can be avoided. COPYRIGHT: (C)2006,JPO&NCIPI
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