| 摘要 |
<p>PROBLEM TO BE SOLVED: To ensure prescribed loading strength and reduce drawing effort by fitting a plurality of retainers which are supported on a supporter and rotatably-retain rotating rollers on the supporter. SOLUTION: This wiring and piping material receiver 1 is constituted of parent girders 2 formed out of plate material whose cross-section is fixed, and a plurality of child girders fitted at prescribed intervals between the parent girders 2. The child girders 3 are provided with a plurality of columnar rotating rollers 5 disposed the lengthwise direction on a supporter 4 whose part of top surface is open and which is formed into a roughly square shape of fixed cross section, and a cable W is drawn in to be disposed on the rotating rollers 5. The respective rotating rollers are retained so as to rotate freely through a shaft body 7 made of rod material or the like passing through its axial line and disposed in the longitudinal direction between supporters 6. When the cable W is drawn in this wiring and piping material receiver 1, the rotating roller 5 of the child girder 3 rotates in a retained condition by the supporter 6. It is thus possible to attain large loading strength and reduce drawing-in effort.</p> |
