Title:
CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP2015053111
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve the positioning accuracy of a contact point of a double-break circuit breaker, and to suppress generation of friction at a bearing part of a rotor, and to provide a highly-reliable circuit breaker.SOLUTION: A double-break circuit breaker in which, when such current that a circuit should be blocked flows, a rotor 13 rotates, and a power supply side contact and a load side contact are operated to be closed by the rotation of the rotor, comprises: a first unit case 52L supporting one shaft part 13L of the rotor by a recessed cylinder part 52LCG; and a second unit case 52R supporting the other shaft part 13R of the rotor by a recessed cylinder part 52RCG. The recessed cylinder part of the first unit case and the recessed cylinder part of the second unit case are arranged at such a position that a center O of the recessed cylinder part of the first unit case and a center O' of the recessed cylinder part of the second unit case become coaxial.
Inventors:
HIGAKI JUNICHI
TAKAHASHI SUSUMU
TAKAHASHI SUSUMU
Application Number:
JP2013183701A
Publication Date:
March 19, 2015
Filing Date:
September 05, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01H73/06; H01H73/02
Domestic Patent References:
| JPH07335110A | 1995-12-22 | |||
| JP2013053376A | 2013-03-21 | |||
| JPH05282974A | 1993-10-29 | |||
| JP2011119261A | 2011-06-16 |
Attorney, Agent or Firm:
Masuo Oiwa
Takenaka 岑 student
Keigo Murakami
Kenji Yoshizawa
Takenaka 岑 student
Keigo Murakami
Kenji Yoshizawa