| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a bell mouth with a joint which can prevent a cable from being non-insertable even if a hand hole is formed in soft ground or the like, and a pipe connecting structure. <P>SOLUTION: The bell mouth with the joint comprises a cylindrical part 10 which is embedded into the wall 3 of the hand hole 2 and of which the internal end opening 12 is opened at the internal side of the hand hole 2, and an accommodation cylinder 15 which is continuously arranged at the cylindrical part 10 and opened at the external side of the hand hole 2. In a state that the connecting end 9 of a connecting pipe body 5 is inserted into the accommodation cylinder by a prescribed amount from an external end opening 39 side along the pipe axial direction, the connecting end 9 is accommodated in the accommodation cylinder 15, and the come-off of the connecting end is regulated by a locking means 20. The connecting pipe body 5 is a corrugated pipe which has a protrusion 7 and a recess 6 alternately in the pipe axial direction. A regulation cylinder 16 which surrounds the protrusion 7 at the connecting end 9 side is continuously arranged at the external end side of the accommodation cylinder 15 in a state that the come-off is regulated. Upon the application of an external force which causes the displacement of a bell mouth axial line and a pipe shaft of the connecting pipe body 5, the bent and dent of the connecting pipe body 5 in the regulation cylinder 16 is regulated. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
