| 摘要 |
PURPOSE:To obtain reproducibility conforming to the actual state of wind pressure by providing a drawing device which suspends a suspension block group increasing in the number of branches downward. CONSTITUTION:The 2nd suspension blocks 20b which are arranged in the same direction are fixed to the couple of rods 28a of the 1st suspension block 20a fixed to the lower end of the extending and contracting plunger 29 of the drawing device, and the 3rd four suspension blocks 20c arranged at right angles to the blocks 20b are fixed to four rods 28b of the two-branched blocks 20b. Then when the numbers of X- and Y-directional force application points are odd and even respectively, the 4th suspension blocks 20d arranged in the same direction with the blocks 20c are fitted to only four one-side rods 28c of the blocks 20c, and the 5th suspension blocks 20e are fixed to the other-side rods 28c of alternate suspension blocks; and fixed connection points of the rods 28b of the blocks 20b and the blocks 20c are positioned eccentrically by about one third. Therefore, the fixation points are formed at equal intervals in the X and Y directions. |
