| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a connecting structure of a flexible tube for a sprinkler capable of restraining slight bending of a point to a root side end part of the flexible tube for the sprinkler by more than required and, consequently, preventing cracking, breaking and water leaking of the point to the root side end part of the flexible tube for the sprinkler. <P>SOLUTION: This connecting structure of the flexible tube for the sprinkler calks a metal made calking cylindrical body 11 on an outer periphery of a root side end part 1a by inserting the root side end part 1a of the flexible tube 1 for the sprinkler on an outer periphery of a connecting port part 51 of the flexible tube of a metal made tube coupler 5 connected to a header for water diversion, a synthetic resin made sleeve 16 for bending restraint is inserted and fixed on an outer periphery of the calking cylindrical body 11, and a head end part 16a of the sleeve 16 for bending restraint is extended and formed longer in a heading direction than a head end part 51a of a connecting port part 51 of the flexible tube. It is possible to restrain small excessive bending of a point 1a to the root side end part of the flexible tube 1 for the sprinkler at the head end part 51a of the connecting port part 51 of the flexible tube by the head end part 16a of the sleeve 16 for bending restraint. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
