Title:
回路遮断器
Document Type and Number:
Japanese Patent JP7313263
Kind Code:
B2
Abstract:
To provide a circuit breaker that does not disengage a crossbar from a movable contact even when an impact is applied during a trip or when the contact is opened.SOLUTION: A circuit breaker includes: a movable contactor 17 provided with a movable contact 19 at the tip; a crossbar 18 that has a through hole 30 through which the movable contact 17 passes, and that lowers the movable contact 17; and a spring 27 that urges the movable contact 17 upward, in which a locking portion 32 that prevents the movable contact 17 from moving forward is provided on the upper surface of the through port 30 of the crossbar 18. A restricting portion 33 is provided at a position shifted in the front-rear direction from the locking portion 32 on the lower surface of the through port 30 of the crossbar 18, and a height difference x between the locking portion 32 and the restricting portion 33 is made smaller than a thickness t of the movable contact 17.SELECTED DRAWING: Figure 7
Inventors:
Naoki Yasumura
Yuusuke Aida
Yuusuke Aida
Application Number:
JP2019215222A
Publication Date:
July 24, 2023
Filing Date:
November 28, 2019
Export Citation:
Assignee:
Nitto Kogyo Co., Ltd.
International Classes:
H01H73/02
Domestic Patent References:
| JP2002150913A | ||||
| JP60070626A | ||||
| JP2003007188A | ||||
| JP2012123970A |
Attorney, Agent or Firm:
Kusunoki Patent Office