| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device for concrete construction, which can complete the construction in a short period of time by preventing the deformation of a receiving frame and a form and easily performing the determination of width, in the construction of the receiving frame. Ž<P>SOLUTION: This device for the concrete construction comprises: a side wall portion 2a which has an anchor 2c fixed to an outside surface; a fixing implement 5 which makes the anchor 2c fixed in a height-adjustable manner, so as to support the receiving frame 3 at a predetermined height; the form 3 which is installed on a concrete panel 6 and arranged inside the receiving frame 3 supported by the fixing implement 5, and which blocks concrete placed outside the receiving frame 3, so as to define an inner peripheral surface of an entrance of a hatch; and a supporting rod 4 which is placed on the form 3. The supporting rod 4 is provided with a receiving-frame supporting protrusion 4c which has both ends protruded outward from the form 3, so as to support the side wall portion 2a of the receiving frame 2 from the inside, and a form supporting protrusion 4b which is radially protruded in such a manner as to abut on the inside of the form 3. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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