| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock forced-opening preventing device with even more protectiveness against forced opening from the outside. SOLUTION: The lock forced-opening preventing device includes a hook lever 21 having a locking part 22 at one end to be hooked to the vertical side opening edge of a latch insertion opening P on the door side, and swingable in an advancing/retreating direction by a support part 24 provided at the other end, and a latch 31 having a locking protrusion 32 at the tip to be hooked to the longitudinal side opening edge of the latch insertion opening P on the door side, and slidable in the advancing/retreating direction along a slide guide groove 33 provided at the other end. Both the latch 31 and hook lever 21 have slide operating parts 28, 34 linked by the operating shaft 44 of a latch lever 16 rotatable in the locking/unlocking direction. COPYRIGHT: (C)2011,JPO&INPIT
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