| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide CD pipe made of resin which is easy to be fixed on an installation surface such as a floor, slab structure and the like. <P>SOLUTION: The CD pipe 1 made of resin is constructed in a hollow cylindrical form with its cross section being of an oval shape, with the pipe's outer peripheral surface having convex parts 2a and concave parts 2b alternately formed thereon. While the convex parts 2a are formed in a given width (d), the convex parts with their width d' being wider than the foregoing (d'>d), (hereinafter called wide width convex parts 2c) are arranged at prescribed intervals. At both the ends on the bottom surface 2d side of the wide width convex part 2c, a floor fixation part 3 is provided as it projects out from the pipe's outer edge 2f. The floor fixation part 3 has a screw mounting hole 4 drilled therein so that the CD pipe can be fixed on the floor surface 9 by the use of a mounting screw 8. <P>COPYRIGHT: (C)2013,JPO&INPIT |
