| 摘要 |
PROBLEM TO BE SOLVED: To protect a lock from cylinder pick-off. SOLUTION: In this cylinder pick-off protective structure for the lock, an outer cylinder end part 30 of a cylinder 29 is inserted in a cylinder fitting hole 28 of a lock case 1, while a protective block 35 having a plurality of horizontal guide holes 50 communicating with horizontal through holes 31, 31 of a vertical pair of projecting parts 32, 32 of the outer cylinder end part 30 is built in between bearing seats 21 provided at the internal wall surface of the lock case. The protective block 35 and the cylinder 29 are integrally connected in a skewered state through a plurality of long and thin protective bars 36 inserted into the lock case from upper and lower through holes 7, 8 of a mounting plate 4 of the lock case. COPYRIGHT: (C)2005,JPO&NCIPI
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