| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a one-way rotation inhibiting mechanism capable of preventing damage without impairing a function to an excessive torque input.SOLUTION: A one-way rotation inhibiting mechanism 17 includes an output shaft 3 and an annular portion 18d rotated relatively to each other, an inclined face 31 formed on an outer peripheral face of the output shaft 3, and a roller 17e rolling on the inclined face 31. The inclined face 31 includes a first part 31a forming a first strut angle, and a second part 31b adjacent to the first part and forming a second strut angle. The second part 31b is formed in adjacent to an engagement direction of the first part 31a so that returning motion of the roller 17e by the second part 31b occurs when an output of a driving source for rotating the annular portion 18d is over a rated torque.</p> |
