| 摘要 |
PROBLEM TO BE SOLVED: To provide a fence equipped with spikes, which facilitates addition of new supports to supports of an existing fence. SOLUTION: The fence equipped with the spikes is formed of the first supports erected on the ground at appropriate intervals, first fence panels erected between the first supports, the second supports detachably attached to upper edges of the first supports, and second fence panels erected between the second supports. Thus, only by arranging the second supports on the upper edges of the supports of the existing fence, retrofitting of the spikes is easily achieved. COPYRIGHT: (C)2004,JPO
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