| 摘要 |
<P>PROBLEM TO BE SOLVED: To coat the inside of a wastewater horizontal main pipe and a wastewater vertical main pipe connected to the horizontal pipe with high quality. <P>SOLUTION: A coating spray apparatus includes a cylindrical body of which one end surface of the tip side is closed and having a plurality of through holes in a peripheral wall part, a rotary shaft 16 of an electrical motor 2 passing the inner center of the inside of the cylindrical body and fixed to the center of the one end surface, a substrate part 1 which has arranged an electrical motor 2, a guide body 5 fixed to the substrate body through a connection part and arranged at the tip end of the cylindrical body, and a coating feed pipe 4 of which the tip end is opened to the inside. The trough holes 8a, 8b in the region in the vicinity of the one end surface among the through holes of the cylindrical have areas smaller than a through hole 8c in the region of a far side, and in the connection part, the projection range of a cross direction of the mutual rotary shaft 16 is different in the region of passing the trough holes 8a, 8b and in the region of passing the through hole 8c. <P>COPYRIGHT: (C)2011,JPO&INPIT |
