| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock device for door which can perform each operation by continuous operations without separately installing a knob and a key cylinder, in which the simplification of the structure and the reduction of the number of components can be achieved since it is not necessary to independently install an opening/closing mechanism and a lock mechanism just like a conventional manner, and saving of a labor on assembly and compactification of the structure can be easily achieved.SOLUTION: A lock device for door includes an opening/closing mechanism for switching a locked state and unlocked state of a door by swinging an opening/closing arm on the basis of the rotation of a knob and a lock mechanism for switching the locked state and unlocked state of the door by inserting a key into a key cylinder, and rotating the key cylinder in a state that a tumbler is released from the body. The knob is integrally formed with the key cylinder, and the opening/closing arm is also used for the lock mechanism, and the key cylinder is formed so as to be rotatable without inserting the key into the key cylinder in the unlocked state of the lock mechanism. |
