| 摘要 |
PROBLEM TO BE SOLVED: To perform a double lock by connecting a handle lock to a bolt mechanism installed in a door as permanent component as a substitute for dispensing with an auxiliary cylinder lock, when there is no demand of a user using the auxiliary lock as an option. SOLUTION: This door lock device is provided with a lock receiver metal 8 provided on the cabinet side, a vertically sliding type lock bar 9 provided on the door side and engaging/disengaging the lock receiver metal, the handle lock disposed with a handle 10 with a lock in the door front surface and connecting its operation lever 11 to the lock bar, and the auxiliary lock added thereto for locking the lock bar as the option. The bolt mechanism 14 is preinstalled in the door as the permanent component, when the auxiliary lock is added thereto, the auxiliary cylinder lock 13 is interlocked with the bolt, and in a state of having no auxiliary lock, the handle lock and the bolt are interlocked via the auxiliary operation lever 16 additionally connected to the handle lock so as to perform the double lock.
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