mechanical action
Movement through machinery
Mechanical action refers to physical movement produced by machinery or mechanism, as opposed to electrical, chemical, or manual processes.
In piano construction, the mechanical action is the system of levers, hammers, and keys that transfers a pianist's touch to the strings: The old upright had a sluggish mechanical action.
More broadly, any movement that operates through physical parts rather than electronics or hydraulics.
- leverPivoting bar for lifting
- push and pullOpposite directional forces
- ratchetToothed one-way mechanism
- springRecoiling metal spiral
- wind upReach a final state
gear · gear train · pulley · chain drive · pawl · lock and key · motion · linkage · axle · ball bearing · escapement · toggle · cam · torque · force · bellows · crank · inertia