How IT Works

How do key locks work?      For every lock (F.1) , there is a unique key . For the lock to work, only that key can fit. The reason for this is the ridges on the key. In each lock, there is a cylinder-like object that protects the main part of the lock, called a case(F.3) . The metal c ircle that we put our key in is known as the plug(F.4) . The plug only turns when the correct fitting key is put in. The opening  that we put the key into is called the keyway . In the inside of the case, there is the main mechanism that allows a key lock to work. There are multiple hollowed out shafts . Each shaft has a spring , and two pins . The pins are tiny cylindrical objects that smoothly slide through the shafts. There are two pins; the driver pin and the key pin(F.5) . The spring is arranged touching the top of the shaft, with the driver pin under it and the kay pin under the driver pin. When a key is inserted, the ridges push the key pin up, contracting the spring. When the contacting part of