| 摘要 |
<p>PROBLEM TO BE SOLVED: To hold a door lock definitely by allowing a second lever to swing idle when an external force is exerted on an operating state of a dead lock wherein a second lever is separated from a first lever. SOLUTION: An engagement member 11 supported on a first lever 10 couples integrally a second lever to be connected to a lock knob with the first lever 10 when a movable member 16 is located at a dead lock release position and engaged with a movable member guide of an actuator case and holds a first engagement area 13c of a second lever 13. When a dead lock motor 15 is turned, the movable member moves slidingly to a dead lock operation position by way of transfer means 17 and 18 and is engaged with the movable member guide of the actuator case. When holding a second engagement area 13d of the second lever 13, the second lever is loosely inserted into the engagement area of the second lever and separated from the first, lever. Therefore, the second lever is arranged to swing idle and fails to move a sector 18 even when an external force is exerted on the dead lock operation position.</p> |
