| 摘要 |
PROBLEM TO BE SOLVED: To provide an instantaneous tripping device capable of maintaining stable mass production performance because of high processability of a plate spring and being easily adjusted even when adjusting the performance of an electromagnetic tripping device.SOLUTION: In a holding structure of a movable iron piece (113d) of an instantaneous tripping device (113), a displacement part of a plate spring (113e) formed almost rectangularly in a flat plate is provided with a punching part (113e1), and the movable iron piece (113d) is mounted on one end part of the plate spring (113e). |
