To provide a method for manufacturing a distributing water pipe with a snap tap in which a distribution water pipe is preliminarily perforated in a plant and then a snap tap is attached to the perforated pipe.
A rubber ring is attached to an inner surface of a branch port preliminarily formed on a distribution water pipe main body, a cylindrical member 4 is attached to the inner surface of the rubber ring, thereafter, a diameter expansion tool 7 is inserted to the distribution water pipe main body from a pipe axial direction opening part 2c of the distribution water pipe main body, and a lower edge part of the cylindrical member 4 is pressed by the tool 7 and the diameter of the distribution water pipe is expanded. The diameter expansion tool 7 is formed of a pressing part 7a of which the inside is swollen and the outside is concaved and is conveyed from an outer part to a distribution water pipe inner part by a carriage 10. Further, a pressing operation tool 11 is disposed between the diameter expansion tool 7 and the carriage 10.
SHIMOMURA JUN
MICHIURA YOSHISADA
SHIBATA YUSUKE
