Toggle Force Calculator:
Enter the values of effort force, EF(lbf), length of the lever arm, L(ft), and height, H(ft) to determine the value of Toggle Force, TF(lbf).
Toggle Force Formula:
The toggle force calculation is essential in mechanics, where it’s used to understand the force output by a lever mechanism. This output force is significant in systems designed to apply a large force with minimal input effort, such as in clamps.
Toggle Force, TF(lbf) in pounds-force is calculated by taking the effort force, EF(lbf) in pounds-force, multiplying it by the length of the lever arm, L(ft) in feet, and then dividing by twice the height, H(ft) from the pivot to the point of effort application in feet.
Toggle Force, TF(lbf) = EF(lbf) * L(ft) / 2 * H(ft)
TF(lbf) = toggle force in pounds force, lbf.
EF(lbf) = effort force in pounds force, lbf.
L(ft) = length in feet, ft.
H(ft) = height in feet, ft.
Toggle Force Calculation:
1.Consider a press where an effort force of 300 lbf is applied at the end of a lever arm 2 ft long. The height from the pivot to the point of effort application is 0.25 ft. Calculate the toggle force exerted by the press.
Given: EF(lbf) = 300lbf, L(ft) = 2ft, H(ft) = 0.25ft.
Toggle Force, TF(lbf) = EF(lbf) * L(ft) / 2 * H(ft)
TF(lbf) = 300 * 2 / 2 * 0.25
TF(lbf) = 1200lbf
2.An effort force of 200 pounds-force is applied at the end of a lever arm of 3 feet to achieve a toggle force of 400 pounds-force. We want to find the height from the pivot to the point of effort application.
Given: EF(lbf) = 200lbf, L(ft) = 3ft, TF(lbf) = 400lbF.
Toggle Force, TF(lbf) = EF(lbf) * L(ft) / 2 * H(ft)
H(ft) = EF(lbf) * L(ft) / 2 * TF(lbf)
H(ft) = 200 * 3 / 2 * 400
H(ft) = 0.75ft.