| 摘要 |
<p>PURPOSE:To enable changing the inclination of a probe camera and efficiently lay a cable in a conduit line, the inner face of which has obstacles, by driving a front plate with suction-and-exhaust-type expansion flexible materials. CONSTITUTION:V-shaped flat front plate 1 and rear plate 5 are arranged parallel and face to face and connected by three hollow cylindrical suction-and- exhaust-type expansion flexible tubes 4 extended from one plate to the other and interposed therebetween. The front plate 1 and the suction-and-exhaust-type expansion flexible tubes 4 which are used must have high degrees of freedom of rotation. Compression coil springs 3 are made around each of the suction-and- exhaust-type expansion flexible tubes 4 coaxially therewith. Inclination of the front plate 1, or the direction of a probe camera is changed as desired and obstacles are avoided by selectively supplying air to the three suction-and- exhaust-type expansion flexible tubes 4 to change the pressure.</p> |
