| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pipe joint applicable to a large diameter pipe and rapidly and easily performing plumbing by an electric work tool. <P>SOLUTION: A tightening ring 5 has a worm wheel 13 and a small block-like work piece 15A. The worm piece 15A has an atypical hole portion opened in a radial direction R. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
