发明名称 |
Circuit breaker |
摘要 |
A circuit breaker includes a fixed contact; a movable contact disposed in a rotary-type contact holder; a switching device; an operation handle; and an over-current tripping device. The operation handle is operated to open and close main-circuit contact points through the switching device. The switching device includes a handle lever connected to the operation handle; a toggle linkage having an upper toggle link and a lower toggle link; a switching spring placed between the handle lever and an arm connecting point of the toggle linkage; and a side plate for holding the components. The circuit breaker further includes a device for preventing the operation handle from moving to an off position when the contact points are stuck together. The device includes first stoppers formed on a cross bar of the contact holder and the handle lever facing the cross bar, and a second stopper formed on the side plate.
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申请公布号 |
US2004124074(A1) |
申请公布日期 |
2004.07.01 |
申请号 |
US20030691673 |
申请日期 |
2003.10.24 |
申请人 |
ASANO HISANOBU;MITSUSHIGE MITSUHIRO;YAMAGATA HIDETO;TAKAHASHI YASUHIRO |
发明人 |
ASANO HISANOBU;MITSUSHIGE MITSUHIRO;YAMAGATA HIDETO;TAKAHASHI YASUHIRO |
分类号 |
H01H73/02;H01H71/10;H01H71/50;H01H73/24;(IPC1-7):H01H5/00 |
主分类号 |
H01H73/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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