| 摘要 |
<P>PROBLEM TO BE SOLVED: To shorten the time required before releasing the breaking spring force in an operation mechanism of a switchgear. <P>SOLUTION: When the switchgear transits from a closing state to a breaking state, a solenoid lever 36 is pushed by the plunger 38a of a breaking electromagnetic solenoid 38 and rotated so that the solenoid lever 36 rotates in the direction opposite from the urging direction of a solenoid lever reset spring 37. Consequently, a trigger roller pin 31a and the solenoid lever 36 are disengaged, and an eccentric pin 32 and a trigger lever 31 are rotated by an urging force from a latch roller pin 12a. The latch roller pin 12a and the tip of the latch 34c are thereby disengaged, and a latch lever 12 is rotated by release force of the breaking spring. <P>COPYRIGHT: (C)2012,JPO&INPIT |
