To simply and inexpensively produce a regenerated article.

A cutting process for producing vinyl chloride resin pipe bodies 2 by cutting a waste vinyl chloride resin pipe 1 for an electric wire in a prescribed length, a heating process for heating/softening the pipe body in a heating chamber 3 to be processed, and a molding process in which the inner hole of the pipe body 2 after being heated and before being hardened is flared while hole flaring bodies 6 are inserted gradually into the pipe body 2 from both end openings so that the pipe body 2 is molded into a joint 10 which is the regenerated article are provided.