| 摘要 |
<p>The operation of tbe security switch is ensured by the force- transmitting knob (13)held by a diecast bush (14). The turn of the knob is normally limited to 180 deg. due to its projections h engaging the arcuate slots i in the cover of the switch housing. The contact housing (3) is fitted with a cover (4) exhibiting an opening for contacts (10,11) and the special lock of the switch has a latching plate spring with operating side at right angles to the lock. The indexing and interlocking disc (12) is made of plastic or sheet metal while the torsion spring is supported by bolt (19) of the locating roller (20).</p> |
