| 摘要 |
PURPOSE:To provide a solar battery panel which can surely develop into a large area disc-shape only by releasing the restriction of a cylindrically folded up state. CONSTITUTION:This is an about disc-shaped panel 1 which has developed shape having an opened hole 1a at 5 center, and the panel 1 has radial top polygonal line 2a and bottom polygonal line 2b which are mutually radially formed from the center of the panel 1 and concentric top polygonal line 3a and bottom polygonal line 3b which are concentrically formed from the center and cross mutually at the position of an intersection point where the lines 2a, 2b are crooked. Many similar trapezoid-shaped pieces divided cobweb-shapedly on each of polygonal lines 2a, 2b, 3a, 3b are served as folding up elements 4, 5, 6 utilizing the polygonal lines 2a, 2b, 3a, 3b for a hinge, and the folding up elements 4, 5, 6 are mutually folded up to make the lines 2a and 2b form upper and lower edges, and moreover contracted into a vortex-cylindrical shape having height corresponding to the number of divisions of the most peripheral folding up element 6. |
