发明名称 |
Roller latching and release mechanism for electrical switching apparatus |
摘要 |
A circuit breaker includes a housing; separable contacts moveable between closed and open positions; an operating mechanism, for moving the separable contacts between the closed and open positions, having a first latched position and a second unlatched position corresponding to the open position of the separable contacts, and including a pair of cradles pivotally supported about a pivot axis within the housing to pivot in a first pivotal direction to the first position of the operating mechanism and a second pivotal direction to the second position of the operating mechanism; a handle mechanism for moving the cradles in the first pivotal direction; a latch mechanism for latching the operating mechanism in the first position thereof and for releasing the operating mechanism to the second position thereof, including a latch plate pivotally supported within the housing having two opposing elongated openings, a roller pin cross member generally parallel to the cradle pivot axis supported by the latch plate at each of the openings, and a spring mechanism for biasing the cross member with respect to the cradles; and a trip mechanism cooperating with the latch mechanism for releasing the operating mechanism to the second position thereof. An arcuate reset surface of the cradles independently engages a corresponding end of the cross member when the operating mechanism is moved toward the first position thereof. The cross member engages a linear latch surface of the cradles for latching the operating mechanism in the first position thereof.
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申请公布号 |
US5713459(A) |
申请公布日期 |
1998.02.03 |
申请号 |
US19960622714 |
申请日期 |
1996.03.26 |
申请人 |
EATON CORPORATION |
发明人 |
BECK, H. RICHARD;WHITE, RICHARD E.;FISCHER, KENNETH M.;HELMS, ROGER W. |
分类号 |
H01H71/50;H01H71/52;(IPC1-7):H01H5/00 |
主分类号 |
H01H71/50 |
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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