| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a piping connection structure which can hold one piping member surely in the other piping member at a predetermined insertion point without requiring any special work during piping work. <P>SOLUTION: In the circumferential wall 13b at the end 13a of an opening for slidably inserting the sheath pipe 11 of a duct sleeve 13 provided in the circumferential wall 12a of a work hole 12 for relaying a cable, an opening 15 is formed to open outward of the duct sleeve 13. In the circumferential wall 11c at the end 11a of the sheath pipe 11 inserted into the end 13a of the duct sleeve 13, a protrusion 16 engaging with the opening 15 of the duct sleeve 13 is formed. The protrusion engages with the opening 15 of the duct sleeve 13 releasably when the sheath pipe 11 elongates/contracts thermally. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
