| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the resistance within the flow pipe passage against the movement of a line therethrough by supporting the line moving through the flow pipe with the suspension member, and allowing the floating roller to roll on the path in contact with the ceiling surface along the movement of the line. SOLUTION: The roller support 12 is formed into a substantially U-like shape as a whole. A support axis 15 is fixed by penetrating a pair of parallel pieces 12b connected to a horizontal member 12a such that a floating roller 11 is inserted into the space defined by the parallel pieces 12b. The support axis 15 is penetrated through the through hole 14 for fixation so as to pivotally support the floating roller 11. The suspension member 13 is fixed to the roller support 12 by a nut 18 via a connecting rod 17. As a result, the suspension member 13 supports the line moving through the passage of the flow pipe. The floating roller 11 floats at the height in contact with the ceiling surface of the passage of the flow pipe by means of the buoyancy thereof. Therefore, the floating roller 11 rolls on the ceiling surface along with the line movement.</p> |
