| 摘要 |
<p>The switch is operated by a push-button passing through a hole in the case. The push-button has a cam guiding slot (22) which moves together with the push-button through the hole in the case of of the switching mechanism. It is reset by a spring, and a slide is provided on the case outer surface with a cam (38) entering is the slot (22). The slot (22) shape is such, that when the push-button is operated once, the slide moves in a position in which the cam (38) is in a locked position in the slot, the push-button is held in the down position and the switch is closed. Next, pressure on the push-button returns it, the slide and the can to their initial positions.</p> |
