Sectional View of a Snap-Action Switch

Sectional View of a Snap-Action Switch

By , 01/31/2013 @ 3:29 pm= | Full size is 205 × 300 pixels

Figure 6-5. Top: Two contacts inside this limit switch are touching by default. Bottom: When the external button is pressed, it pushes a flexible metal strip downward until it connects with the lower contact. The inverted-U–shaped component is a spring that rests inside a cutout in the flexible strip and resists motion through the central part of its travel.


Adam Flaherty

I make cool stuff and write about other people making cool stuff on makezine.com. If you have something you think I should see, send me a tip.