| 摘要 |
<p>In a magnetically actuated switch such as is disclosed in U.S. Patent No. 3,586,809, the armature stop against which the armature engages in its switch-open position has a pair of vibratile members attached to its tip, in vibration transmitting relation to it and extending lengthwise from it. The two vibratile members are tuned to different frequencies, both lower than that of the armature stop. They so control vibration of the armature stop as to quickly stop the armature at its switch open position. Similar vibratile members on a relatively stationary contact member eliminate contact rebound upon switch closure.</p> |
