Trip bar stop

摘要

An operating mechanism including a number of biasing elements and a number of linkage members is provided. The linkage members are operatively coupled to each other and each are movable between a second configuration, an initial tripped configuration, a rebound configuration, and a final tripped configuration. The biasing elements are operatively coupled to the number of linkage members and bias the number of linkage members to the final, first configuration. A stop member is coupled to one of the linkage members. The stop member moves with the associated linkage member. The stop member is positioned to contact a stop surface when the linkage members are in the rebound configuration. Contact between the stop member and the stop surface substantially arrests the motion of the linkage members.

主权项

1. A linkage assembly for a circuit breaker wherein said circuit breaker includes a trip device with a trip bar, and an operating mechanism, said trip bar including a latching surface, said operating mechanism structured to move between an open, final tripped configuration and a closed, second configuration, said operating mechanism biased toward said first configuration, said trip bar structured to move between an open, first configuration and a closed, second configuration, said trip bar operatively coupled to said operating mechanism, wherein, when said operating mechanism and said trip bar are in their respective second configurations, said trip bar prevents said operating mechanism from moving to said first configuration, and, when trip bar is in said first configuration, said trip bar does not prevent said operating mechanism from moving to said final tripped configuration, said linkage assembly comprising:
a number of linkage members, said linkage members operatively coupled to each other and each movable between a second configuration, an initial tripped configuration, a rebound configuration, and a final tripped configuration, said linkage members biased to said final tripped configuration; a stop member coupled to one said linkage member, said stop member moving with said associated linkage member, said stop member positioned to contact a stop surface when said linkage members are in said rebound configuration; wherein contact between said stop member and said stop surface substantially arrests the motion of said linkage members; said number of linkage members includes a cradle latch; said stop surface disposed on said cradle latch; said number of linkage members includes a cradle latching member and a trip bar latch member; said stop member coupled to said cradle latching member; said cradle latching member rotatably coupled to said trip bar latch member; said trip bar latch member including a latch surface and a cam surface; and wherein when said trip bar latch member is in one of said rebound configuration or said final tripped configuration, said trip bar latch member cam surface is disposed in the path of said trip bar latching surface.