| 摘要 |
PURPOSE: An insert for construction is provided to increase the support force of a coupler, since a bending prevention unit prevents stopping pieces of a coupling holder from sagging. CONSTITUTION: An insert for construction comprises a support member(10), a coupling holder(30), and a top cap(50). The support member is composed of a placing unit(13) and a column unit(12). The coupling holder is placed on the placing unit. The top cap is inserted into the column unit. The coupling holder is comprised of a support ring(33) and multiple hanging pieces(31). The support ring is placed on the placing unit of the support member and is coupled with a rotation preventing bar(17) though a rotation preventing groove(37).
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