| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motion mechanism for changing rotational motion to linear motion, wherein a male screw member can be directly moved without being loosened in proportion to the rotation of a rotational output shaft. <P>SOLUTION: When a rotational output shaft 12 rotates, a holder 14, a pair of plate springs 18, and a pair of guide members 16 are rotated and a male screw member 22 is integrally rotated with the rotational output shaft 12 via a pin 24 for rotating a male screw member held between leading ends 1604A of protruded plate portions 1604 of a pair of guide members 16. The pair of guide members 16 holds the pin 24 for rotating the male screw member in a way that the pin 24 for rotating the male screw member is movably and integrally rotated with the rotational output shaft 12 at any position in the axial direction of the rotational output shaft 12, and therefore, a problem of looseness between the rotational output shaft 12 and the male screw member 22 is not generated. <P>COPYRIGHT: (C)2012,JPO&INPIT |
