| 摘要 |
PROBLEM TO BE SOLVED: To improve crime prevention performance of a guide rail of a shutter system. SOLUTION: The guide rail 4 is provided with an inner side extended part 44 arranged on an indoor side more than a rising fin 5a constituted in a lower frame 5 and an outer side extended part 42 arranged on an outdoor side more than the rising fin 5a. The inner side extended part 44 is engaged with the rising fin 5a to constitute an engaging part to be engaged with the lower frame 5 by the inner side extended part 44. COPYRIGHT: (C)2009,JPO&INPIT
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