| 摘要 |
PURPOSE:To make it possible to fasten unit cells at an even pressure, by fastening them through a member with a projection on the surface contacting to the cells. CONSTITUTION:On the unit cells 1 piled with the recessed side up, a fastening metal 2a with a projecting side down is placed, and depressed by fastening rods 3. The projection of the fastening metal 2a is formed in a spherical surface with a curvature less than that of the recession of the unit cell 1. Therefore, the center of the unit cells 1 is depressed initially, then the edge side is pressed gradually, and a relaxation or discrepancy produced in the piling are corrected while depressing, resulting in an even fastening. |
