| 摘要 |
PROBLEM TO BE SOLVED: To provide a deck plate which prevents, for example, a gap communicating with the backside of a metallic base from appearing due to slightly defective welding, when a reinforcement of a reinforcement unit is spot-welded to a protrusive streak portion formed by partially bending the metallic base. SOLUTION: This deck plate 10 is composed of the metallic base 11 and the reinforcement unit 12 which is fixed to a surface of the metallic base 11. The plurality of protrusive streak portions 18, which are protruded upward from the surface 11c and elongated between a pair of edge portions 11a and 11b facing each other, are juxtaposed on the metallic base 11 by bending the metallic base 11. In each of the protrusive streak portions 18, its cross-sectional shape orthogonal to its length direction presents a fan shape. A downside bent portion 15b of a lattice bar 15, which constitutes the reinforcement unit 12, is placed in such a manner as to cross a curved top surface wall 21 of the protrusive streak portion 18, and its portion 23 is spot-welded to the top surface wall 21 of the protrusive streak portion 18. COPYRIGHT: (C)2009,JPO&INPIT
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