| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a conduit self-propelled vehicle provided with a carriage movable in a conduit and an inspecting instrument mounted on a carriage to inspect a state of the conduit, while allowing the vehicle to easily run over a concave-convex surface in the conduit. <P>SOLUTION: A wheel 16 of the carriage 11 includes a tread 30 for the conduit, and a tread 28 formed to reduce an outer diameter of the wheel 16 toward the center of the wheel along an axle direction inside the tread 30. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
