| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a crime prevention lens cover, a crime prevention lens, and its fitting structure capable of coping with the change of social situation. SOLUTION: This crime prevention lens cover 1A is fitted to a crime prevention lens A for a double door, so-called flash door, having the thickness of two plates, and it comprises a cover piece 1a covering the indoor side flange section 20 of an outer tube 2 constituting the crime prevention lens A and a fitting ring 1b for fitting the cover piece 1a to the crime prevention lens A. The cover piece 1a is rotatably fitted to the fitting ring 1b via the connecting pieces 10a and 10b of the cover piece 1a and the fitting ring 1b.</p> |
