DOOR LOCK DEVICE

摘要

Disclosed is a door lock device that can easily open and close a door just by pushing or pulling a handle in one direction, wherein a latch bolt assembly is rotatably mounted in a door lock housing, and pushed by a resilient force of a spring by the action of an operation rod assembly connected to an operation lever, such that when a handle is manipulated at a state where the latch bolt is locked into a door frame, the operation rod assembly is retracted and simultaneously the latch bolt assembly is rotated to release the locking state, thereby making it possible to smoothly open the door with a substantially small force.