| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a washer for the inside of a tubular body in which, even if the size of the tubular body is changed, the replacement of a truck for supporting the washer and the height adjustment by a spacer and a shim are not needed. SOLUTION: The height of a first boom 31 provided with a washer is made adjustable, and furthermore, the first boom 31 is so constituted that it is supported by a link mechanism which can be moved up and down in a horizontal state, and a distance between support rolls 33 is made adjustable, and these are provided with a means for adjusting them to suit the inside diameter of the tubular body. Therefore, without needing a separate means, washing of the inside of the tubular body from large diameter to small diameter can be performed. In this way, rearrangement of the booms and adjustment by the spacer and shim performed conventionally whenever the size range of the tubular body is changed is not needed to sharply save washing work time and man- hour including preparation.</p> |
