Based on innovation design theory of "KISS（Keep it simple

stupid）"

the centrifugal clutch with toggle two-steps orthogonal force amplifier is innovated. The working principle is introduced. The formulas of output force

output torque

joint angular velocity

joint rotate speed

rated angular velocity and rotate speed

the maximum load of the spring

are given out separately. The above formulas and educed results are helpful to instruct the design for practical engineering. The structure of this centrifugal clutch with two-steps orthogonal force amplifier is compact

and the manufacturing cost is a little bit more than that of commonly used

but it can get much bigger torque than that of a conventional one. So it can apply more in situation with large power and slow speed

this principle can also be used to design over-speed safety gear.