Title:
熱動形過負荷継電器
Document Type and Number:
Japanese Patent JP4906881
Kind Code:
B2
Abstract:
A thermal overload relay includes main bimetals which bend upon detection of an overload current; a release lever displaced via movement of a shifter moved in response to the bending of the main bimetals; and a contact reversing mechanism for changing-over contacts responsive to a rotation of the release lever. The main bimetals, the release lever and the contact reversing mechanism are all disposed in a case. The contact reversing mechanism includes a pivotable movable plate; a reversing spring reversing the movable plate by coupling with a rotated release lever; and an interlock plate rotating around a support shaft together with the movable plate. Each contact has a normally opened contact piece and a normally closed contact piece and is disposed respectively in the vicinity of a front surface and in the vicinity of a back surface of the interlock plate.
Inventors:
Yukio Furuhata
Fumihiro Morishita
Takeo Kamozaki
Fumihiro Morishita
Takeo Kamozaki
Application Number:
JP2009079396A
Publication Date:
March 28, 2012
Filing Date:
March 27, 2009
Export Citation:
Assignee:
Fuji Electric Equipment Control Co., Ltd.
International Classes:
H01H61/01; H01H61/00
Domestic Patent References:
| JP1177849U |
Attorney, Agent or Firm:
Yoichi Matsumoto