| 摘要 |
<p>PURPOSE: To constitute a conduit which can be buried easily like that for drainage and facilitates laying of communication cables. CONSTITUTION: Connecting guide pins 5 connecting both pipes 2, 2' having pipe wall through-holes through insertion into apertures at the pipe end surfaces 4a of the four through holes 3 among many through-holes 3 which are bored in the pipe wall 2a and extended in the pipe axis direction and apertures of the corresponding through holes 3 at the pipe end surfaces 4a of the other pipes 2' having pipe wall through holes 2' butted opposed to the pipe end surfaces 4a and connection receptacle pipe 6 loading, in the circumferential direction thereof, stop rings 10 at the internal circumferential surface of both end portions 7 and being loaded to the external circumference of the end portions 4 of pipe of both pipes 2, 2' having the pipe wall through-holes 2, 2' connected with connecting guide pins 5 are comprised. The other through- holes 3 except for the through holes 3 to which the connecting guide pins 5 are inserted are formed in the continuous conduit and communication cables are accommodated in this conduit.</p> |
