Method of establishing parent line

摘要

Problem to be solved: to provide a method of establishing a parental line capable of raising safety on work on a roof using a parent.Solution: when installing the parentheses 21 and 22 on the roof 11 of the building 10, the parenthesis 21, after the connection step, is provided with two pairs of parentheses 21, 22 in such a manner that the two parentheses 21, 22 are connected in an intermediate portion in the form of an X-shape; A safety band connection process for connecting the safety band 24 to the connection portion 23 connected to the connection portion 23 is performed.Diagram