| 摘要 |
<p>PURPOSE: To provide a device for carrying a long object such a cable to a such narrow position as in a pipeline or a rubble. CONSTITUTION: Inner balloons 5 and 7 and outer balloons 6 and 8 are provided inside and outside a first annular substrate 3 and a second annular substrate 4, at the same time the first annular substrate 3 and the second annular substrate 4 are connected by a stretchable connecting body 9, and a pressurized fluid can be supplied to or discharged from the inner balloons 5 and 7 and outer balloons 6 and 8.</p> |
