| 摘要 |
PROBLEM TO BE SOLVED: To provide a safety fence for a working area capable of freely adjusting the surrounding length of the safety fence according to the working area. SOLUTION: The safety fence for the working area includes external fences 40, 50 having opening parts 44, 54 and guide grooves 42, 52 of guide pins 68, 78 on one side surface, a connector 38 for connecting the external fence 40 and the external fence 50 to each other, internal fences 60, 70 which are stored from opening parts of the external fences 40, 50 and have opening parts 64, 74, the guide pins 68, 78, and guide grooves 62, 72 on one side surface, and expansion fences 80, 90 which are stored from the opening parts 64, 74 of the internal fences 60, 70 and have guide pins 84, 94 on an upper surface. COPYRIGHT: (C)2009,JPO&INPIT
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