| 摘要 |
PURPOSE: To carry out piping easily and surely in a bent state through an arcuate subgroove part from the main groove part in a straight line form, by cutting a panel along a line joining the groove top end of each subgroove part and the objective lines of the left and right subgroove parts and properly combining the divided panel parts. CONSTITUTION: A panel body 1 is formed to a rectangular shape having a ratio between length and width of 2/1, and the straight-line-shaped first to the tenth main groove parts 2a-2j are formed in parallel in an equal interval between the left and right edge parts on the surface. At each of the main groove parts 2a-2j, the left and right first subgroove parts 3 in 1/8 circular shape which are branched to the front edge part 1c side and the left and right second subgroove parts 4 in 1/8 circular shape which are branched from each main groove part to a rear edge side 1d side are arranged so that each groove top end is positioned on the line (a) joining the center of the rear edge part 1d and both the angular parts of the front edge part 1c. The necessary pipe panel is formed by properly combining the divided panel parts cut along the line (a) and the objective line (b). |
