Patent ID: 8299378

Claim:
A position indicating device for a circuit breaker, the circuit breaker comprising a breaker main body having a switching mechanism for closing or opening an electrical circuit and contacts and configured to be movable, a cradle having terminals electrically connected to an electrical power source or an electrical load of the electric circuit and terminals electrically connected to the breaker main body, and a movable carriage configured to support the breaker main body and convey the breaker main body to a run position at which the breaker main body is electrically connected to the terminals of the cradle and to a test position at which the breaker main body is electrically separated from the terminals of the cradle and a test for the breaker main body is available, the position indicating device comprising: a position indicating plate installed at a lower surface of the movable carriage to be rotatable up and down and having a portion for indicating a position of the breaker main body; an indication supporter installed at the cradle and having stepped pressing surfaces for contacting the position indicating plate; and a frame portion of the movable carriage, the frame portion having windows for externally showing the portion for indicating the position of the breaker main body in accordance to the rotation of the position indicating plate a pivot pin fixed to the lower surface of the movable carriage and configured to rotatably support the position indicating plate; a return spring disposed at the lower surface of the movable carriage and configured to apply an elastic force to the position indicating plate in one direction; and a bracket installed at the lower surface of the movable carriage and having supporting plates for supporting both end portions of the pivot pin.