Inner Workings Of Exterior Door Lock
First the visible parts need a brief explanation then the mechanism itself will be looked at.
Inner workings of exterior door lock. On doorknobs that have a lock it is employed by a small lever or push button on the interior handle. The main parts of a door lock are the cylinder bolt box and strike plate. The pins are placed in pairs with one on top of the other. Rekeying involves realigning the pins and springs in the inner workings of the lock in order to match the lock to a new key.
Normal doorknob locks have five pairs of pins which interact with a single key to lock or unlock the door. New front doors change everything in 4 entryway before and afters. The locking mechanism is an intricate series of springs pins cylinders and shafts that work together to secure the door. The lock prevents the spindle of the bolting mechanism from retracting from the door frame making it impossible to open the door.
A key is required to open the door from the exterior side of the door. Inside the cylinder is a series of small pins of varying length. Colorado state university mech202 design ii. What is seen besides the handle is the deadbolt knob the inner and outer panels the key entry the bolt plate and the bolt itself.
Each type of lock is built differently but let s take a look at the anatomy of a typical door lock usually used in homes or light commercial buildings.