Title:
回路しゃ断器の過負荷引外し装置
Document Type and Number:
Japanese Patent JP4186415
Kind Code:
B2
Abstract:
An overload tripping device includes a temperature-compensating bimetal operating as a tripping lever and interposed between an output lever of a differential shifter mechanism linked with a main bimetal and a latch receiver of an opening-and-closing mechanism section of a circuit breaker. The temperature-compensating bimetal has an intermediate portion journaled on a bimetal holder. An operating arm made of a light molding material is attached to a tip of the temperature-compensating bimetal so as to push the latch receiver. Additionally, a balance weight may be installed on the temperature-compensating bimetal to balance inertial moments on the opposite sides of the bimetal. Thus, the circuit breaker is prevented from being inadvertently tripped due to external stimulus.
Inventors:
Eihiro Isamu
Naoji Uchida
Kuboyama Katsunori
Atsushi Koyama
Naoji Uchida
Kuboyama Katsunori
Atsushi Koyama
Application Number:
JP2000364331A
Publication Date:
November 26, 2008
Filing Date:
November 30, 2000
Export Citation:
Assignee:
Fuji Electric Equipment Control Co., Ltd.
International Classes:
H01H73/22; H01H71/10; H01H71/16; H01H71/74; H01H83/22
Domestic Patent References:
| JP5198239A | ||||
| JP42001068Y1 | ||||
| JP7022447U | ||||
| JP6051226B2 |
Attorney, Agent or Firm:
Hiroshi Yamamoto