| 摘要 |
<p>PURPOSE:To enable the resistance of metal wheels against a protector passing through them to be extremely reduced, by arranging two or more metal wheels continuously in stringing work, and by lowering the metal wheel near at hand first to permit the protector to pass through the wheel, and then lowering the metal wheel on the forward side. CONSTITUTION:When an electric wire 2 is stringing-set, then, the metal wheel units 1 of two or more units are continuously arranged along the advancing direction A of the wire 2 on an iron tower 6. First, the metal wheel unit 1 near at hand in the advancing direction is set at a position lower than that of the metal wheel unit 1 on the forward side, and in this state, a protector 5 is introduced. When the protector 5 passes the metal wheel unit 1 near at hand, then the metal wheel unit 1 on the forward side in the advancing direction is set to be lower, and the protector 5 is contrived to pass the units 1 perfectly. As a result, an angle formed in case that the protector 5 is advanced to the metal wheel unit 1 near at hand can be set to be almost zero, and so passing resistance along with the rigidity of the protector 5 can be cancelled.</p> |
