| 摘要 |
FIELD: ironmongery, particularly locks. ^ SUBSTANCE: lock comprises body for lock installation in door, locking bar and central lock assembly. Central lock assembly includes key-operated locking mechanism for locking bar movement operation. Central lock assembly may be detached from rigid body to replace key-operated central assembly and to use another key for central assembly operation. Locking mechanism is adapted to use key with double bit and has slides cooperating with above key or locking mechanism is made as cylindrical locking mechanism. Mounted on face surface of lock body located on outer door side is protection member, which protects key-insertion area. Protection member has body, hole and inner member detachably installed in protection member body hole. Inner member may be changed for inner member having another configuration corresponding to central assembly type. ^ EFFECT: increased resistance to lock breaking and improved performance. ^ 10 cl, 11 dwg
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