| 摘要 |
PROBLEM TO BE SOLVED: To provide a burglar-proof device 1 capable of preventing deformation of projections 5. SOLUTION: The burglar-proof device 1 is provided with a base member 3 to be fitted on a member 2 for climbing, a fixing means 4 for fixing the base member 3 to the member 2 for climbing, and the projections 5 protruded from the base member 3. The base member has a thick wall part 3-1 which is too thick to be bent by a human power and is provided with the projections 5 on the thick wall part 3-1. COPYRIGHT: (C)2003,JPO
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