What is knuckle coupler diagram?

A knuckle coupler is a type of coupling device used to connect two rail vehicles (locomotives or cars). It is named after its distinctive shape, resembling a knuckle joint. The knuckle coupler consists of two parts: a knuckle and a socket. The knuckle is mounted on the end of one rail vehicle, while the socket is attached to the end of another rail vehicle.

The knuckle coupler works by attaching the knuckle of one rail vehicle to the socket of another. When the two vehicles are pushed together, the knuckle slips into the socket and locks into place. The coupling is held together by a vertical locking pin, which engages with the knuckle and prevents it from releasing. The knuckle coupler allows for smooth and efficient transfer of energy and momentum between rail vehicles, while also allowing for easy detachment and re-connection of rail cars as needed.

A typical knuckle coupler diagram will include labels for the knuckle and socket, as well as the locking pin and other important parts of the coupling mechanism. The diagram may also indicate the proper technique for coupling and uncoupling rail vehicles, as well as safety considerations and best practices. Understanding the knuckle coupler and its function is essential for anyone working with rail transport and freight movement.