Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

How to calculate toggle mechanisnm forces?

  1. Nov 6, 2013 #1

    This is not a homework question although I'll admit it could be.

    I've searched everywhere trying to work out how to calculate the spreading force of a simple toggle mechanism.

    I have a two equal length arms that are hinged together. One end is fixed on a pivot pin and the other can slide along a flat plane but is resisted by a fixed stop. The hinged arms are not quite in line and aligning them would increase their overall length. If I apply a force to the hinge, perpendicular to the base plane, what force along the plane will I get?

    Is there an equation I can use? I don't need to consider friction in the pins or sliding surfaces just now.

  2. jcsd
  3. Nov 6, 2013 #2
    Need a picture. But in general, you usually solve this kind of problem by balancing the torque forces across the pivot.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook