| 摘要 |
PURPOSE: A door lock having a manual key is provided to enable a key lever to be rotated through the automatic rotation of a key lever as well as the manual rotation of a key. CONSTITUTION: A connection device is comprised of a spring(8) and a connecting unit. A spring separates a locking material(200) from an assistant key tail(90). The connecting unit delivers the rotation force of a key to a key tail. The connecting unit is comprised of protrusion connecting the lower part of a lock to the key tail as well as recess combination.
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