| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a film extension tool that can attach a pressure receiving film with constant stretching, and to provide a method for assembling a pressure regulating valve using the same. <P>SOLUTION: The film extension tool includes: a tool base 74 mounted to a valve casing 11 with a positioning state; at least three gripping blocks 75 mounted slidably in a radial direction related to the tool base 74 and gripping an unnecessary peripheral portion of a pressure receiving film 16 in at least three positions which portion dislodges from a pressing ring; and a block moving mechanism 76 installed in the tool base 74 and moving at least three gripping blocks 73 simultaneously toward outside. <P>COPYRIGHT: (C)2012,JPO&INPIT |
