| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a collective joint that is attached along a side face of a building. <P>SOLUTION: The collective joint 3 collects a plurality of buried sheath pipes containing wire cables and buried underground to connect the sheath pipes to a riser sheath pipe that leads the wire cables along a side face of a building to the ground surface. The collective joint 3 includes a bottom slab portion 31 having a plurality of sleeves 34 into which the buried sheath pipes are fitted, a riser cylindrical portion 32 into which the riser sheath pipe is fitted, and a taper side face portion 33 which leads the wire cables inserted from the bottom slab portion 31 to the riser cylindrical portion 32. The outer peripheral surface 32a of the riser cylindrical portion 32 and the lower end 33c of the outer peripheral surface 33a of the taper side face portion 33 are positioned substantially on the same straight line L at least at one spot in the axis direction of the riser cylindrical portion 32. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
