lever
Linkage (mechanical) – Assembly of systems connected to manage forces and movement Mechanism (engineering) – Device which converts input forces and motion to output forces and motion simple machine – Mechanical device that changes the direction or magnitude of a force /suto3/Google画像検索.iconlever /suto3/Google定義検索.icon lever /suto3/wikipedia.iconlever /suto3/kotobank.icon lever