| 摘要 |
PROBLEM TO BE SOLVED: To provide picking preventive cover capable of being easily attached to a door by anyone, allowing a key to be handled by one hand for opening and closing, requiring no removal, and providing two locks for one door. SOLUTION: A case 1 is provided with a frontal opening 2 and a recess 3. A key 6 is provided having inside the case 1 a cover 5 provided with a lower opening cover 4 so that the frontal opening 2 can be opened and closed. A latch 7 is provided in the recess 3.
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