| 摘要 |
The switch includes a microswitch switching mechanism (1) having a biassed plunger (11). The body of the switching mechanism is covered by a lid (2) having a user-operated slider (3) mounted thereon. Movement of the slider (3) is confined to a track (7) formed in the lid (2). A cam surface (10) is provided on a part of the slider (3) which is engageable with the plunger (11) of the switching mechanism. The "over-centre" profile of the cam surface (10) is such that movement of the slider in one direction causes the plunger (11) to be depressed and then released. Inadvertent operation of the switch is therefore avoided due to the cam profile (10).
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