To provide a circuit breaker by which blurring of the axial direction and the whole inclination of a trigger lever is reliably prevented and in which a tripping characteristic is stabilized.
In a circuit breaker, a trigger lever that conveys an operation of an overcurrent detector to a mechanism part is pivotally supported by a frame of the mechanism part. A regulation part of the axial direction of the trigger lever is provided outside the pivoted position of the trigger lever, and the burring of the axial direction and the whole inclination is suppressed. The regulation part of the axial direction is desirably a leg part that can be elastically deformed in the axial direction of the trigger lever. In addition, the leg part is desirably fit in the rotation center axis of the trigger lever.
ITO YUICHI
YAHARA SHIGEKI
YASUMURA NAOKI
| JP2006228655A | 2006-08-31 | |||
| JP2007287507A | 2007-11-01 |
Fumio Yamamoto
Yukine Sekine
Kita Shizuo