| 摘要 |
<p>The electrical operating apparatus of the invention comprises an upper shaft rigidly connected to a rotary operating member, a lower shaft positioned so as to pass through all the modules that house the various contacts, a rupture mechanism rigidly secured to the upper end of the lower shaft, for storing the energy necessary to enable free rotation of said lower shaft until it reaches its final position, and a trigger mechanism that is, via the upper end thereof, rigidly secured to the lower end of the upper shaft and, via the lower end thereof, rotatably secured to the upper end of the lower shaft, for limiting the movement of the upper shaft while allowing the contacts to move at maximum speed by means of the free rotation of the lower shaft once the rupture mechanism releases the stored energy.</p> |
