| 主权项 |
1. An electrical wire protection tube comprising:
a tube main body portion that is made up of ring-shaped ribs and small-diameter short tube portions that are a resin molded body and are alternatingly arranged in a single line so as to form one passageway for passage of an electrical wire, holes of the ring-shaped ribs and holes of the small-diameter short tube portions having the same diameter, wherein in each of the ring-shaped ribs, a diameter corresponding to a central portion in an axial direction is a maximum diameter, each of the ring-shaped ribs has a maximum-diameter ridgeline portion and inclined surfaces that are respectively located on one side and another side of the ridgeline portion and are inclined toward the small-diameter short tube portions, and when the tube main body portion is bent into a U shape, the small-diameter short tube portions stretch on one side such that three to eight of the ring-shaped ribs that are adjacent to each other are located in a 180-degree bending range on a side opposite to a side on which the small-diameter short tube portions are stretched, inclined surfaces of the adjacent ring-shaped ribs being in close contact with each other. |
