Title:
【発明の名称】回路遮断器
Document Type and Number:
Japanese Patent JP3117074
Kind Code:
B2
Abstract:
A circuit breaker with a completely electromagnetic type overcurrent tripping device has a flexibility for changes in the production schedule of the overcurrent tripping device. An overcurrent tripping device for each pole is integrally housed in a common unit case, which is then inserted into a case of the circuit breaker. In this case, a yoke of the overcurrent tripping device is combined with an oil dash pot inserted into a coil, and the combined parts are pressed and fixed in the unit case without soldering. Thus, the coil, which is changed depending on the rated current, and the yoke and oil dash pot which are common products, can be separately stored prior to assembly, thereby enabling flexible responses to changes in the production schedule. In addition, the yoke and the oil dash pot need not be soldered and are fixed individually to the unit case, thereby reducing the number of assembly operations.
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Inventors:
Yoshiaki Kawashima
Kazuhiko Sato
Tadahisa Aoki
Makoto Ogasawara
Kazuhiko Sato
Tadahisa Aoki
Makoto Ogasawara
Application Number:
JP22307096A
Publication Date:
December 11, 2000
Filing Date:
August 06, 1996
Export Citation:
Assignee:
Fuji Electric Co., Ltd.
International Classes:
H01H71/24; H01H71/02; H01H73/36; H01H83/02; H01H71/10; H01H71/12; H01H71/34; (IPC1-7): H01H71/24; H01H73/36; H01H83/02
Domestic Patent References:
| JP2284329A | ||||
| JP7262902A | ||||
| JP9167555A |
Attorney, Agent or Firm:
Yoshihide Komada