| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a quadrangular panel member which is not deformed by wind pressure of a rain storm or shaking of an earthquake.SOLUTION: Three standing pieces 1S, 1S, 1Sof three sides are provided from a front side forming a right triangle toward a backside thereof, and two right triangle-shaped panel members 1, each of which is provided with locking holes 1h, 1h for being joined with the adjacent panel member in two pieces 1S, 1Sforming a right angle among the three standing pieces, are preliminarily manufactured as a set. Respective hypotenuse standing pieces 1Sremained in the right triangle-shaped panel members 1 are mutually joined to form a quadrangular panel member 2. The joint part of the hypotenuse standing pieces 1Sprovides a trough structure function.</p> |
