| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a branch fitting capable of absorbing extension and contraction of a resin pipe in accordance with changes of temperature, while maintaining connection with the resin pipe stably, and ensuring strength of a branch pipe for connecting an external device or a branched pipe. <P>SOLUTION: A collar part 22a formed on the branch pipe 22 is locked into an inner face of a flow passage hole of a fitting main body 11 to protrude a cylindrical part 22b of the branch pipe 22 from an outer face, and a part in the vicinity of a through hole 11a of the fitting main body 11 is nipped and held by a fixing device 23 mounted annularly in the cylindrical part 22b and the collar part 22a to fix the branch pipe 22. In addition, a packing 11g is annularly mounted between an inclined face 11f formed in such a way that its diameter is gradually expanded toward the outside and the resin pipe B in an end part of the flow passage hole 11d so as to protrude outward and partially from the end part, and this packing 11g is pressed toward the inside by a pressing member 11h to connect the resin pipe B. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
