| 摘要 |
PROBLEM TO BE SOLVED: To provide a through hole rim reinforcing tool for a concrete body, which imparts beautiful appearance to the concrete body, and suitably prevents fracture of a rim of an opening of a through hole, and to provide a method or reinforcing the through hole rim by using the reinforcing tool. SOLUTION: The reinforcing tool is formed of an inner surface reinforcing portion 15 which is fitted into the through hole 11 such as a permeable hole, formed in the concrete body 10, a flange portion 19 having a flange-like shape, which is formed on a peripheral portion of an upper opening of the inner reinforcing portion 15, and an engaging portion 20 which is protruded from a peripheral portion of a lower opening of the inner reinforcing portion 15. According to the reinforcing tool thus formed, the engaging portion 20 comprises at least a pair of engaging members 13, 13 each formed of an elastic plate member, and slipout preventive claws 18, 18 which are each formed at a lower edge of the engaging member 13 and protrude from the rear-side opening of the through hole 11 to be engaged with the rear-side opening rim.
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