| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a joint part leak-prevention device capable of maintaining waterproof properties on an abutment face of a leak-prevention member, in regard to the joint part leak-prevention device fitted to a joint part of an existing pipe over the circumferential direction so as to be watertight and preventing water leakage in the joint part. <P>SOLUTION: The abutment face 9a of the leak-prevention member 9 in the fitted state to the joint part 3 is provided with an inclined cut face R inclined at a predetermined second angleθ2 so as to increase the area compared to that of a cut face Q inclined from a pipe axial plane x-z including a pipe axis z of the existing pipe with respect to the direction of the pipe axis z at a predetermined first angle. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
