| 摘要 |
<p>A top board structure capable of easily and simply assembling and welding a reinforcing frame to a top board body, providing a sufficient strength with a reduced weight, and reducing abnormal noise that might occur when an impact is applied. A reinforcing frame (3) formed by assembling lateral reinforcing member (7) directed in a lateral direction with a longitudinal reinforcing member (8) directed in a longitudinal direction is fixed to the lower surface (5b) of a base board (5) in a top board body (2) formed at the peripheral edge thereof in a box shape opened downward by a downward piece (6), a rear surface cover (4) in a box shape opened upward by an upward piece (11) is formed at the peripheral edge of a cover base board (10), and the rear surface cover (4) is fixed to the top board body (2) with the upward piece (11) of the rear surface cover (4) kept fitted/inserted into gaps (a, b) formed between the inside surface of the erect piece portion (6a) of the downward piece (6) in the top board body (2) and the outside portion (3a) of the reinforcing frame (3) or the inside partition wall (7a)of the reinforcing member (7) constituting the reinforcing frame (3).</p> |
