| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily and quickly execute the work of an additional overhead line smoothly by providing it with a coupling member for installing an additional overhead line to the head member, having a head member to be inserted into a spiral continuous connecting member and a plurality of elastic members arranged around the head member, with their heads in the form of a fan. SOLUTION: The tool has a head member 6 to be inserted into a connecting hanger material 1 which is continuous in a spiral form between supports and three or more pieces, preferably, four for more pieces of elastic members 7 arranged around the head member 6, with their heads the form of a fan. Further more, this is provided with a coupling member for installing an additional overhead line capable which is mountable and removable at the rear of the head member 6. The relatively small and short head part 6 is convenient to handle, because it is of basic constitution and small and short, but also it tends to be not necessarily smooth at pushing into the long spiral continuous connecting member, while the head part 6 made of wood can facilitate the thrust operation in the long section.</p> |
