Switching device operating mechanism, has locking lever pulled out when switching device is moved from closed state to opening sate, to rotate latch in direction opposite to pre-stressing direction of latch release spring

摘要

The mechanism has a roller (72a) fixed at a guiding end of a latching lever (72). The roller presses a guiding end of a latch (91) in a direction to a rotation center of the latch in a closed state. A locking lever (52) is pulled out when the switching device is moved from the closed state to an opening state, to rotate the latch in a direction opposite to a pre-stressing direction of a latch release spring (91a) for releasing contact between the roller and the end of the ratchet. The contact is released such that energy of an opening spring is released for rotating an auxiliary shaft (70).