| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a stopper device which can elevate a rod irrespective of presence or absence of supply of an electric power source to a motor.SOLUTION: A stopper device 10 comprises: a conversion mechanism part including a motor unit 90 having an output shaft 92, a screw shaft 70 which is rotated by transmission of a torque from the output shaft 92, a nut 62 which coverts a rotation motion of the screw shaft 70 into a linear motion by engagement thereof with the screw shaft 70; and a rod 20 which has a workpiece contact part 23, which contacts with a workpiece transported on a transportation passage thereby stopping the workpiece, and which moves between a first position, where the workpiece contact part 23 crosses the transportation passage, and a second position, where the workpiece contact part 23 does not cross the transportation passage, on the basis of the linear motion of the nut 62. An engagement hole 74, with which a tool for rotating the screw shaft 70 is engaged, is formed in the screw shaft 70.</p> |
