| 摘要 |
PURPOSE: A dead-latch bolt driving arm of a digital doorlock which improves the structure of a key hole in which a drive shaft is inserted is provided to connect a rotary shaft with a lever of an outer body and an inner body. CONSTITUTION: Key holes(101) penetrate drive shafts(200). Center inner faces(102) corresponding to the outer face of the drive shaft is formed in an inner wall. Diameter enlarging face is getting wider toward end parts. A drive shaft performs the seesaw operation of the start point.
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