Title:
ELECTROMAGNETIC TRIPPING DEVICE AND CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP2014199755
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an electromagnetic tripping device and a circuit breaker ensuring a stabilized coil spring load.SOLUTION: An electromagnetic tripping device 90 includes a coil spring 98, a fixed iron core 93 to be inserted into the coil spring 98, and a movable iron core 97 provided while separated from the fixed iron core 93 via the coil spring 98. In the electromagnetic tripping device 90, the fixed iron core 93 and the movable iron core 97 are brought into contact with each other or separated from each other by an electromagnetic force acting on the fixed iron core 93. The electromagnetic tripping device 90 includes a spacer 100 for suppressing the space between the outer periphery of the fixed iron core 93 and the inner periphery of the coil spring 98.
Inventors:
SHINOHARA HIROKI
INEJI TAKASHI
INEJI TAKASHI
Application Number:
JP2013074666A
Publication Date:
October 23, 2014
Filing Date:
March 29, 2013
Export Citation:
Assignee:
PANASONIC CORP
International Classes:
H01H83/10; H01H83/12
Domestic Patent References:
| JPH0498729A | 1992-03-31 | |||
| JPH05342969A | 1993-12-24 | |||
| JPH0845733A | 1996-02-16 | |||
| JP2000231869A | 2000-08-22 | |||
| JP2003007191A | 2003-01-10 | |||
| JP2013218896A | 2013-10-24 |
Foreign References:
| US20070080766A1 | 2007-04-12 |
Attorney, Agent or Firm:
Hironori Onda
Makoto Onda
Makoto Onda
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