| 摘要 |
PROBLEM TO BE SOLVED: To prevent the displacement of reinforcing wall forming portions to each other and side wall forming portions to each other, when a metallic plate is bent into a hair pin shape and pressed for brazing. SOLUTION: This metal plate 40 comprises two flat wall forming portions 12, 13, the plurality of reinforcing wall forming portions 14A, 14B, 15A, 15B upwardly projecting from each of the wall forming portions 12, 13 integrally therewith, and the side wall forming portions 16, 17 formed at each of opposite side edges of the plate and upwardly projecting therefrom integrally therewith. Projections 21 for left-side engagement, are integrally formed on left-side portions of tip faces of the reinforcing wall forming portion 14A of a horizontal center portion of the left flat wall forming portion 12, the reinforcing wall forming portion 15A of a horizontal center portion of the right flat wall forming portion 13, and both side wall forming portions 16, 17, in a state of longitudinally extending. Projections 22 for right-side engagement, longitudinally extending and engaged with the projections 21 for left-side engagement, are integrally formed on right side portions of tip faces of the reinforcing wall forming portions 14B at both right and left sides of the left flat wall forming portion 12, and the reinforcing wall forming portions 15B of both right and left sides of the right flat wall forming portion 13. COPYRIGHT: (C)2007,JPO&INPIT |
